diff --git a/application/controllers/Search.php b/application/controllers/Search.php
index 4285ed5b..e9b7d0e8 100644
--- a/application/controllers/Search.php
+++ b/application/controllers/Search.php
@@ -48,4 +48,56 @@ class Search extends CI_Controller {
             $this->load->view('interface_assets/footer');
         }
     }
+
+    function json_result() {
+
+          if(isset($_POST['search'])) {
+            $json = $_POST['search'];
+
+            $search_items = json_decode($json, true);
+
+            $search_type = "";
+
+            foreach($search_items as $key=>$value){
+
+
+                if($value == "AND") {
+                    $search_type = "AND";
+                }
+                if ($value == "OR") {
+                    $search_type = "OR";
+                }
+
+                if(is_array($value)) {
+                    foreach($value as $values)
+                    {
+                        //print_r($values['field']);
+                        if($values['operator'] == "equal") {
+                            if($search_type == "AND") {
+                                $this->db->where($values['field'], $values['value']); 
+                            } else {
+                                $this->db->or_where($values['field'], $values['value']); 
+                            }
+                        }
+
+                        if($values['operator'] == "not_equal") {
+                            if($search_type == "AND") {
+                               $this->db->where($values['field'].' !=', $name);
+                            } else {
+                               $this->db->or_where($values['field'].' !=', $name);
+                            }
+                        }
+
+                    }
+                }
+            }
+
+            $query = $this->db->get($this->config->item('table_name'));
+
+            echo json_encode($query->result_array());
+          } else {
+            echo "Noooooooob";
+          }
+
+    }
 }
diff --git a/application/views/interface_assets/footer.php b/application/views/interface_assets/footer.php
index 25c57d58..fb707803 100644
--- a/application/views/interface_assets/footer.php
+++ b/application/views/interface_assets/footer.php
@@ -9,6 +9,69 @@
     <script type="text/javascript" src="<?php echo base_url(); ?>assets/js/leaflet/leaflet.js"></script>
     <script type="text/javascript" src="<?php echo base_url() ;?>assets/js/radiohelpers.js"></script>
 
+
+<?php if ($this->uri->segment(1) == "search" && $this->uri->segment(2) == "filter") { ?>
+
+<script type="text/javascript" src="<?php echo base_url() ;?>assets/js/query-builder.standalone.min.js"></script>
+
+<script type="text/javascript">
+
+$(".search-results-box").hide();
+
+    $('#builder').queryBuilder({
+    filters: [
+      <?php foreach ($get_table_names->result() as $row) {
+        $value_name = str_replace("COL_", "", $row->Field);
+        if ($value_name != "PRIMARY_KEY") { ?>
+        {
+          id: '<?php echo $row->Field; ?>',
+          label: '<?php echo $value_name; ?>',
+          type: 'string',
+          operators: ['equal', 'not_equal']
+        },
+        <?php } ?>
+      <?php } ?>
+    ]
+  });
+
+  $('#btn-get').on('click', function() {
+    var result = $('#builder').queryBuilder('getRules');
+    if (!$.isEmptyObject(result)) {
+      //alert(JSON.stringify(result, null, 2));
+
+      $.post( "<?php echo site_url('search/json_result');?>", { search: JSON.stringify(result, null, 2), temp: "testvar" })
+      .done(function( data ) {
+        //console.log(data)
+        //alert( "Data Loaded: " + data );
+        $('.qso').remove();
+        $(".search-results-box").show();
+
+        $.each(JSON.parse(data), function(i, item) {
+            $('#results').append('<tr class="qso"><td>' + item.COL_TIME_ON + '</td><td>' + item.COL_TIME_ON + '</td><td>' + item.COL_CALL + '</td><td>' + item.COL_MODE + '</td><td>' + item.COL_RST_SENT + '</td><td>' + item.COL_RST_RCVD + '</td><td>' + item.COL_BAND + '</td><td>' + item.COL_COUNTRY + '</td><td>' + item.COL_QSL_SENT + '</td><td>' + item.COL_EQSL_QSL_SENT + '</td><td></td><td></td></tr>');
+        });
+
+      });
+    }
+    else{
+      console.log("invalid object :");
+    }
+  });
+
+  $('#btn-set').on('click', function() {
+    //$('#builder').queryBuilder('setRules', rules_basic);
+    var result = $('#builder').queryBuilder('getRules');
+    if (!$.isEmptyObject(result)) {
+      rules_basic = result;
+    }
+  });
+
+  //When rules changed :
+  $('#builder').on('getRules.queryBuilder.filter', function(e) {
+    //$log.info(e.value);
+  });
+</script>
+<?php } ?>
+
 <script>
 $(document).ready(function() {
 	$('#create_station_profile #country').val($("#dxcc_select option:selected").text());
diff --git a/application/views/interface_assets/header.php b/application/views/interface_assets/header.php
index 6bba37e2..92c7f2a7 100644
--- a/application/views/interface_assets/header.php
+++ b/application/views/interface_assets/header.php
@@ -16,6 +16,10 @@
     <!-- Maps -->
     <link rel="stylesheet" type="text/css" href="<?php echo base_url(); ?>assets/js/leaflet/leaflet.css" />
 
+    <?php if ($this->uri->segment(1) == "search" && $this->uri->segment(2) == "filter") { ?>
+    <link rel="stylesheet" type="text/css" href="<?php echo base_url(); ?>assets/css/query-builder.default.min.css" />
+	<?php } ?>
+	
     <link rel="icon" href="<?php echo base_url(); ?>/favicon.ico">
 
     <title><?php if(isset($page_title)) { echo $page_title; } ?> - Cloudlog</title>
diff --git a/application/views/search/filter.php b/application/views/search/filter.php
index cc3fccf3..7ea27a6f 100644
--- a/application/views/search/filter.php
+++ b/application/views/search/filter.php
@@ -15,31 +15,15 @@
 	    <?php echo $page_title; ?>
 	  </div>
 	  <div class="card-body">
-	    <h5 class="card-title">Explore & Poke the Logbook</h5>
-	    <p class="card-text">
-	    	Select functions go here
-
-	    	<form>
-
-
-<div class="form-group">
-    <label for="columnName">Select Column</label>
-    <select class="form-control" id="columnName">
-	    <?php foreach ($get_table_names->result() as $row) { ?>
-	    	<?php 
-	    	$value_name = str_replace("COL_", "", $row->Field);
-	    	if ($value_name != "PRIMARY_KEY") { ?>
-	    		<option value="<?php echo $row->Field; ?>"><?php echo $value_name; ?></option>
-	    	<?php } ?>
-        <?php } ?>
-    </select>
-  </div>
-
-
-	    	</form>
-	    </p>
 
+		<div class="card-text" id="builder"></div>
+		
 		<p class="card-text">
+		<button class="btn btn-primary" id="btn-get">Search</button>
+
+		<button class="btn btn-warning" id="btn-reset">Reset</button>
+		</p>
+
 	    	<span class="badge badge-info">Info</span> You can find out how to use the <a href="https://github.com/magicbug/Cloudlog/wiki/Search-Filter" target="_blank">search filter functons</a> in the wiki.</a>
 	    </p>
 
@@ -49,15 +33,44 @@
 	<br>
 
 	<!-- Search Results here -->
-	<div class="card">
+	<div class="card search-results-box">
 	  <div class="card-header">
 	    Search Results
 	  </div>
 	  <div class="card-body">
-	    <h5 class="card-title">This is what we found</h5>
-	    <p class="card-text">
-	    	Table here
-	    </p>
+
+		<div class="table-responsive">
+			<table id="results" class="table table-striped table-hover">
+				<tr class="titles">
+					<td>Date</td>
+					<td>Time</td>
+					<td>Call</td>
+					<td>Mode</td>
+					<td>Sent</td>
+					<td>Recv</td>
+					<td>Band</td>
+					<td>Country</td>
+					<?php if(($this->config->item('use_auth')) && ($this->session->userdata('user_type') >= 2)) { ?>
+					<td>QSL</td>
+					
+					<?php if($this->session->userdata('user_eqsl_name') != "") { ?>
+						<td>eQSL</td>
+					<?php } else { ?>
+						<td></td>
+					<?php } ?>
+
+					<?php if($this->session->userdata('user_lotw_name') != "") { ?>
+						<td>LoTW</td>
+					<?php } else { ?>
+						<td></td>
+					<?php } ?>
+
+					<td></td>
+					<?php } ?>
+				</tr>
+	    	</table>
+	    </div>
+
 	  </div>
 	</div>
 
diff --git a/assets/css/query-builder.dark.css b/assets/css/query-builder.dark.css
new file mode 100644
index 00000000..0bad0ecb
--- /dev/null
+++ b/assets/css/query-builder.dark.css
@@ -0,0 +1,173 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Copyright 2014-2018 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+.query-builder .rules-group-container, .query-builder .rule-container, .query-builder .rule-placeholder {
+  position: relative;
+  margin: 4px 0;
+  border-radius: 5px;
+  padding: 5px;
+  border: 1px solid #111;
+  background: rgba(40, 40, 40, 0.9);
+}
+
+.query-builder .rule-container .rule-filter-container,
+.query-builder .rule-container .rule-operator-container,
+.query-builder .rule-container .rule-value-container, .query-builder .error-container, .query-builder .drag-handle {
+  display: inline-block;
+  margin: 0 5px 0 0;
+  vertical-align: middle;
+}
+
+.query-builder .rules-group-container {
+  padding: 10px;
+  padding-bottom: 6px;
+  border: 1px solid #00164A;
+  background: rgba(50, 70, 80, 0.5);
+}
+
+.query-builder .rules-group-header {
+  margin-bottom: 10px;
+}
+
+.query-builder .rules-group-header .group-conditions .btn.readonly:not(.active),
+.query-builder .rules-group-header .group-conditions input[name$='_cond'] {
+  border: 0;
+  clip: rect(0 0 0 0);
+  height: 1px;
+  margin: -1px;
+  overflow: hidden;
+  padding: 0;
+  position: absolute;
+  width: 1px;
+  white-space: nowrap;
+}
+
+.query-builder .rules-group-header .group-conditions .btn.readonly {
+  border-radius: 3px;
+}
+
+.query-builder .rules-list {
+  list-style: none;
+  padding: 0 0 0 15px;
+  margin: 0;
+}
+
+.query-builder .rule-value-container {
+  border-left: 1px solid #DDD;
+  padding-left: 5px;
+}
+
+.query-builder .rule-value-container label {
+  margin-bottom: 0;
+  font-weight: normal;
+}
+
+.query-builder .rule-value-container label.block {
+  display: block;
+}
+
+.query-builder .rule-value-container select,
+.query-builder .rule-value-container input[type='text'],
+.query-builder .rule-value-container input[type='number'] {
+  padding: 1px;
+}
+
+.query-builder .error-container {
+  display: none;
+  cursor: help;
+  color: #F00;
+}
+
+.query-builder .has-error {
+  background-color: #322;
+  border-color: #800;
+}
+
+.query-builder .has-error .error-container {
+  display: inline-block !important;
+}
+
+.query-builder .rules-list > *::before, .query-builder .rules-list > *::after {
+  content: '';
+  position: absolute;
+  left: -10px;
+  width: 10px;
+  height: calc(50% + 4px);
+  border-color: #222;
+  border-style: solid;
+}
+
+.query-builder .rules-list > *::before {
+  top: -4px;
+  border-width: 0 0 2px 2px;
+}
+
+.query-builder .rules-list > *::after {
+  top: 50%;
+  border-width: 0 0 0 2px;
+}
+
+.query-builder .rules-list > *:first-child::before {
+  top: -12px;
+  height: calc(50% + 14px);
+}
+
+.query-builder .rules-list > *:last-child::before {
+  border-radius: 0 0 0 4px;
+}
+
+.query-builder .rules-list > *:last-child::after {
+  display: none;
+}
+
+.query-builder.bt-checkbox-glyphicons .checkbox input[type='checkbox']:checked + label::after {
+  font-family: 'Glyphicons Halflings';
+  content: '\e013';
+}
+
+.query-builder.bt-checkbox-glyphicons .checkbox label::after {
+  padding-left: 4px;
+  padding-top: 2px;
+  font-size: 9px;
+}
+
+.query-builder .error-container + .tooltip .tooltip-inner {
+  color: #F22 !important;
+}
+
+.query-builder p.filter-description {
+  margin: 5px 0 0 0;
+  background: rgba(0, 170, 255, 0.2);
+  border: 1px solid #346F7B;
+  color: #AAD1E4;
+  border-radius: 5px;
+  padding: 2.5px 5px;
+  font-size: .8em;
+}
+
+.query-builder .rules-group-header [data-invert] {
+  margin-left: 5px;
+}
+
+.query-builder .drag-handle {
+  cursor: move;
+  vertical-align: middle;
+  margin-left: 5px;
+}
+
+.query-builder .dragging {
+  position: fixed;
+  opacity: .5;
+  z-index: 100;
+}
+
+.query-builder .dragging::before, .query-builder .dragging::after {
+  display: none;
+}
+
+.query-builder .rule-placeholder {
+  border: 1px dashed #BBB;
+  opacity: .7;
+}
diff --git a/assets/css/query-builder.dark.min.css b/assets/css/query-builder.dark.min.css
new file mode 100644
index 00000000..b7d94c05
--- /dev/null
+++ b/assets/css/query-builder.dark.min.css
@@ -0,0 +1,6 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Copyright 2014-2018 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+.query-builder .rule-container,.query-builder .rule-placeholder,.query-builder .rules-group-container{position:relative;margin:4px 0;border-radius:5px;padding:5px;border:1px solid #111;background:rgba(40,40,40,.9)}.query-builder .drag-handle,.query-builder .error-container,.query-builder .rule-container .rule-filter-container,.query-builder .rule-container .rule-operator-container,.query-builder .rule-container .rule-value-container{display:inline-block;margin:0 5px 0 0;vertical-align:middle}.query-builder .rules-group-container{padding:10px;padding-bottom:6px;border:1px solid #00164a;background:rgba(50,70,80,.5)}.query-builder .rules-group-header{margin-bottom:10px}.query-builder .rules-group-header .group-conditions .btn.readonly:not(.active),.query-builder .rules-group-header .group-conditions input[name$='_cond']{border:0;clip:rect(0 0 0 0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;white-space:nowrap}.query-builder .rules-group-header .group-conditions .btn.readonly{border-radius:3px}.query-builder .rules-list{list-style:none;padding:0 0 0 15px;margin:0}.query-builder .rule-value-container{border-left:1px solid #ddd;padding-left:5px}.query-builder .rule-value-container label{margin-bottom:0;font-weight:400}.query-builder .rule-value-container label.block{display:block}.query-builder .rule-value-container input[type=number],.query-builder .rule-value-container input[type=text],.query-builder .rule-value-container select{padding:1px}.query-builder .error-container{display:none;cursor:help;color:red}.query-builder .has-error{background-color:#322;border-color:#800}.query-builder .has-error .error-container{display:inline-block!important}.query-builder .rules-list>::after,.query-builder .rules-list>::before{content:'';position:absolute;left:-10px;width:10px;height:calc(50% + 4px);border-color:#222;border-style:solid}.query-builder .rules-list>::before{top:-4px;border-width:0 0 2px 2px}.query-builder .rules-list>::after{top:50%;border-width:0 0 0 2px}.query-builder .rules-list>:first-child::before{top:-12px;height:calc(50% + 14px)}.query-builder .rules-list>:last-child::before{border-radius:0 0 0 4px}.query-builder .rules-list>:last-child::after{display:none}.query-builder.bt-checkbox-glyphicons .checkbox input[type=checkbox]:checked+label::after{font-family:'Glyphicons Halflings';content:'\e013'}.query-builder.bt-checkbox-glyphicons .checkbox label::after{padding-left:4px;padding-top:2px;font-size:9px}.query-builder .error-container+.tooltip .tooltip-inner{color:#f22!important}.query-builder p.filter-description{margin:5px 0 0 0;background:rgba(0,170,255,.2);border:1px solid #346f7b;color:#aad1e4;border-radius:5px;padding:2.5px 5px;font-size:.8em}.query-builder .rules-group-header [data-invert]{margin-left:5px}.query-builder .drag-handle{cursor:move;vertical-align:middle;margin-left:5px}.query-builder .dragging{position:fixed;opacity:.5;z-index:100}.query-builder .dragging::after,.query-builder .dragging::before{display:none}.query-builder .rule-placeholder{border:1px dashed #bbb;opacity:.7}
\ No newline at end of file
diff --git a/assets/css/query-builder.default.css b/assets/css/query-builder.default.css
new file mode 100644
index 00000000..465fe2d6
--- /dev/null
+++ b/assets/css/query-builder.default.css
@@ -0,0 +1,173 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Copyright 2014-2018 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+.query-builder .rules-group-container, .query-builder .rule-container, .query-builder .rule-placeholder {
+  position: relative;
+  margin: 4px 0;
+  border-radius: 5px;
+  padding: 5px;
+  border: 1px solid #EEE;
+  background: rgba(255, 255, 255, 0.9);
+}
+
+.query-builder .rule-container .rule-filter-container,
+.query-builder .rule-container .rule-operator-container,
+.query-builder .rule-container .rule-value-container, .query-builder .error-container, .query-builder .drag-handle {
+  display: inline-block;
+  margin: 0 5px 0 0;
+  vertical-align: middle;
+}
+
+.query-builder .rules-group-container {
+  padding: 10px;
+  padding-bottom: 6px;
+  border: 1px solid #DCC896;
+  background: rgba(250, 240, 210, 0.5);
+}
+
+.query-builder .rules-group-header {
+  margin-bottom: 10px;
+}
+
+.query-builder .rules-group-header .group-conditions .btn.readonly:not(.active),
+.query-builder .rules-group-header .group-conditions input[name$='_cond'] {
+  border: 0;
+  clip: rect(0 0 0 0);
+  height: 1px;
+  margin: -1px;
+  overflow: hidden;
+  padding: 0;
+  position: absolute;
+  width: 1px;
+  white-space: nowrap;
+}
+
+.query-builder .rules-group-header .group-conditions .btn.readonly {
+  border-radius: 3px;
+}
+
+.query-builder .rules-list {
+  list-style: none;
+  padding: 0 0 0 15px;
+  margin: 0;
+}
+
+.query-builder .rule-value-container {
+  border-left: 1px solid #DDD;
+  padding-left: 5px;
+}
+
+.query-builder .rule-value-container label {
+  margin-bottom: 0;
+  font-weight: normal;
+}
+
+.query-builder .rule-value-container label.block {
+  display: block;
+}
+
+.query-builder .rule-value-container select,
+.query-builder .rule-value-container input[type='text'],
+.query-builder .rule-value-container input[type='number'] {
+  padding: 1px;
+}
+
+.query-builder .error-container {
+  display: none;
+  cursor: help;
+  color: #F00;
+}
+
+.query-builder .has-error {
+  background-color: #FDD;
+  border-color: #F99;
+}
+
+.query-builder .has-error .error-container {
+  display: inline-block !important;
+}
+
+.query-builder .rules-list > *::before, .query-builder .rules-list > *::after {
+  content: '';
+  position: absolute;
+  left: -10px;
+  width: 10px;
+  height: calc(50% + 4px);
+  border-color: #CCC;
+  border-style: solid;
+}
+
+.query-builder .rules-list > *::before {
+  top: -4px;
+  border-width: 0 0 2px 2px;
+}
+
+.query-builder .rules-list > *::after {
+  top: 50%;
+  border-width: 0 0 0 2px;
+}
+
+.query-builder .rules-list > *:first-child::before {
+  top: -12px;
+  height: calc(50% + 14px);
+}
+
+.query-builder .rules-list > *:last-child::before {
+  border-radius: 0 0 0 4px;
+}
+
+.query-builder .rules-list > *:last-child::after {
+  display: none;
+}
+
+.query-builder.bt-checkbox-glyphicons .checkbox input[type='checkbox']:checked + label::after {
+  font-family: 'Glyphicons Halflings';
+  content: '\e013';
+}
+
+.query-builder.bt-checkbox-glyphicons .checkbox label::after {
+  padding-left: 4px;
+  padding-top: 2px;
+  font-size: 9px;
+}
+
+.query-builder .error-container + .tooltip .tooltip-inner {
+  color: #F99 !important;
+}
+
+.query-builder p.filter-description {
+  margin: 5px 0 0 0;
+  background: #D9EDF7;
+  border: 1px solid #BCE8F1;
+  color: #31708F;
+  border-radius: 5px;
+  padding: 2.5px 5px;
+  font-size: .8em;
+}
+
+.query-builder .rules-group-header [data-invert] {
+  margin-left: 5px;
+}
+
+.query-builder .drag-handle {
+  cursor: move;
+  vertical-align: middle;
+  margin-left: 5px;
+}
+
+.query-builder .dragging {
+  position: fixed;
+  opacity: .5;
+  z-index: 100;
+}
+
+.query-builder .dragging::before, .query-builder .dragging::after {
+  display: none;
+}
+
+.query-builder .rule-placeholder {
+  border: 1px dashed #BBB;
+  opacity: .7;
+}
diff --git a/assets/css/query-builder.default.min.css b/assets/css/query-builder.default.min.css
new file mode 100644
index 00000000..19d64ae9
--- /dev/null
+++ b/assets/css/query-builder.default.min.css
@@ -0,0 +1,6 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Copyright 2014-2018 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+.query-builder .rule-container,.query-builder .rule-placeholder,.query-builder .rules-group-container{position:relative;margin:4px 0;border-radius:5px;padding:5px;border:1px solid #eee;background:rgba(255,255,255,.9)}.query-builder .drag-handle,.query-builder .error-container,.query-builder .rule-container .rule-filter-container,.query-builder .rule-container .rule-operator-container,.query-builder .rule-container .rule-value-container{display:inline-block;margin:0 5px 0 0;vertical-align:middle}.query-builder .rules-group-container{padding:10px;padding-bottom:6px;border:1px solid #dcc896;background:rgba(250,240,210,.5)}.query-builder .rules-group-header{margin-bottom:10px}.query-builder .rules-group-header .group-conditions .btn.readonly:not(.active),.query-builder .rules-group-header .group-conditions input[name$='_cond']{border:0;clip:rect(0 0 0 0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;white-space:nowrap}.query-builder .rules-group-header .group-conditions .btn.readonly{border-radius:3px}.query-builder .rules-list{list-style:none;padding:0 0 0 15px;margin:0}.query-builder .rule-value-container{border-left:1px solid #ddd;padding-left:5px}.query-builder .rule-value-container label{margin-bottom:0;font-weight:400}.query-builder .rule-value-container label.block{display:block}.query-builder .rule-value-container input[type=number],.query-builder .rule-value-container input[type=text],.query-builder .rule-value-container select{padding:1px}.query-builder .error-container{display:none;cursor:help;color:red}.query-builder .has-error{background-color:#fdd;border-color:#f99}.query-builder .has-error .error-container{display:inline-block!important}.query-builder .rules-list>::after,.query-builder .rules-list>::before{content:'';position:absolute;left:-10px;width:10px;height:calc(50% + 4px);border-color:#ccc;border-style:solid}.query-builder .rules-list>::before{top:-4px;border-width:0 0 2px 2px}.query-builder .rules-list>::after{top:50%;border-width:0 0 0 2px}.query-builder .rules-list>:first-child::before{top:-12px;height:calc(50% + 14px)}.query-builder .rules-list>:last-child::before{border-radius:0 0 0 4px}.query-builder .rules-list>:last-child::after{display:none}.query-builder.bt-checkbox-glyphicons .checkbox input[type=checkbox]:checked+label::after{font-family:'Glyphicons Halflings';content:'\e013'}.query-builder.bt-checkbox-glyphicons .checkbox label::after{padding-left:4px;padding-top:2px;font-size:9px}.query-builder .error-container+.tooltip .tooltip-inner{color:#f99!important}.query-builder p.filter-description{margin:5px 0 0 0;background:#d9edf7;border:1px solid #bce8f1;color:#31708f;border-radius:5px;padding:2.5px 5px;font-size:.8em}.query-builder .rules-group-header [data-invert]{margin-left:5px}.query-builder .drag-handle{cursor:move;vertical-align:middle;margin-left:5px}.query-builder .dragging{position:fixed;opacity:.5;z-index:100}.query-builder .dragging::after,.query-builder .dragging::before{display:none}.query-builder .rule-placeholder{border:1px dashed #bbb;opacity:.7}
\ No newline at end of file
diff --git a/assets/i18n/query-builder.ar.js b/assets/i18n/query-builder.ar.js
new file mode 100644
index 00000000..00783c48
--- /dev/null
+++ b/assets/i18n/query-builder.ar.js
@@ -0,0 +1,80 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Arabic (ar)
+ * Author: Mohamed YOUNES, https://github.com/MedYOUNES
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['ar'] = {
+  "__locale": "Arabic (ar)",
+  "__author": "Mohamed YOUNES, https://github.com/MedYOUNES",
+  "add_rule": "إضافة حُكم",
+  "add_group": "إضافة زُمْرَة",
+  "delete_rule": "حذف",
+  "delete_group": "حذف",
+  "conditions": {
+    "AND": "و",
+    "OR": "أو"
+  },
+  "operators": {
+    "equal": "يساوي",
+    "not_equal": "غير مساوٍ",
+    "in": "في",
+    "not_in": "ليس في",
+    "less": "أقل من",
+    "less_or_equal": "أصغر أو مساو",
+    "greater": "أكبر",
+    "greater_or_equal": "أكبر أو مساو",
+    "between": "محصور بين",
+    "not_between": "غير محصور بين",
+    "begins_with": "يبدأ بـ",
+    "not_begins_with": "لا يبدأ بـ",
+    "contains": "يحتوي على",
+    "not_contains": "لا يحتوي على",
+    "ends_with": "ينتهي بـ",
+    "not_ends_with": "لا ينتهي بـ",
+    "is_empty": "فارغ",
+    "is_not_empty": "غير فارغ",
+    "is_null": "صفر",
+    "is_not_null": "ليس صفرا"
+  },
+  "errors": {
+    "no_filter": "لم تحدد أي مرشح",
+    "empty_group": "الزمرة فارغة",
+    "radio_empty": "لم تحدد أي قيمة",
+    "checkbox_empty": "لم تحدد أي قيمة",
+    "select_empty": "لم تحدد أي قيمة",
+    "string_empty": "النص فارغ",
+    "string_exceed_min_length": "النص دون الأدنى المسموح به",
+    "string_exceed_max_length": "النص فوق الأقصى المسموح به",
+    "string_invalid_format": "تركيبة غير صحيحة",
+    "number_nan": "ليس عددا",
+    "number_not_integer": "ليس عددا صحيحا",
+    "number_not_double": "ليس عددا كسريا",
+    "number_exceed_min": "العدد أصغر من الأدنى المسموح به",
+    "number_exceed_max": "العدد أكبر من الأقصى المسموح به",
+    "number_wrong_step": "أخطأت في حساب مضاعفات العدد",
+    "datetime_empty": "لم تحدد التاريخ",
+    "datetime_invalid": "صيغة التاريخ غير صحيحة",
+    "datetime_exceed_min": "التاريخ دون الأدنى المسموح به",
+    "datetime_exceed_max": "التاريخ أكبر من الأقصى المسموح به",
+    "boolean_not_valid": "ليست قيمة منطقية ثنائية",
+    "operator_not_multiple": "العامل ليس متعدد القيَم"
+  },
+  "invert": "قَلْبُ"
+};
+
+QueryBuilder.defaults({ lang_code: 'ar' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.az.js b/assets/i18n/query-builder.az.js
new file mode 100644
index 00000000..c1174bc9
--- /dev/null
+++ b/assets/i18n/query-builder.az.js
@@ -0,0 +1,79 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Azerbaijan (az)
+ * Author: Megaplan, mborisv <bm@megaplan.ru>
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['az'] = {
+  "__locale": "Azerbaijan (az)",
+  "__author": "Megaplan, mborisv <bm@megaplan.ru>",
+  "add_rule": "Əlavə etmək",
+  "add_group": "Qrup əlavə etmək",
+  "delete_rule": "Silmək",
+  "delete_group": "Silmək",
+  "conditions": {
+    "AND": "VƏ",
+    "OR": "VƏ YA"
+  },
+  "operators": {
+    "equal": "bərabərdir",
+    "not_equal": "bərabər deyil",
+    "in": "qeyd edilmişlərdən",
+    "not_in": "qeyd olunmamışlardan",
+    "less": "daha az",
+    "less_or_equal": "daha az və ya bərabər",
+    "greater": "daha çox",
+    "greater_or_equal": "daha çox və ya bərabər",
+    "between": "arasında",
+    "begins_with": "başlayır",
+    "not_begins_with": "başlamır",
+    "contains": "ibarətdir",
+    "not_contains": "yoxdur",
+    "ends_with": "başa çatır",
+    "not_ends_with": "başa çatmır",
+    "is_empty": "boş sətir",
+    "is_not_empty": "boş olmayan sətir",
+    "is_null": "boşdur",
+    "is_not_null": "boş deyil"
+  },
+  "errors": {
+    "no_filter": "Filterlər seçilməyib",
+    "empty_group": "Qrup boşdur",
+    "radio_empty": "Məna seçilməyib",
+    "checkbox_empty": "Məna seçilməyib",
+    "select_empty": "Məna seçilməyib",
+    "string_empty": "Doldurulmayıb",
+    "string_exceed_min_length": "{0} daha çox simvol olmalıdır",
+    "string_exceed_max_length": "{0} daha az simvol olmalıdır",
+    "string_invalid_format": "Yanlış format ({0})",
+    "number_nan": "Rəqəm deyil",
+    "number_not_integer": "Rəqəm deyil",
+    "number_not_double": "Rəqəm deyil",
+    "number_exceed_min": "{0} daha çox olmalıdır",
+    "number_exceed_max": "{0} daha az olmalıdır",
+    "number_wrong_step": "{0} bölünən olmalıdır",
+    "datetime_empty": "Doldurulmayıb",
+    "datetime_invalid": "Yanlış tarix formatı ({0})",
+    "datetime_exceed_min": "{0} sonra olmalıdır",
+    "datetime_exceed_max": "{0} əvvəl olmalıdır",
+    "boolean_not_valid": "Loqik olmayan",
+    "operator_not_multiple": "\"{1}\" operatoru çoxlu məna daşımır"
+  },
+  "invert": "invert"
+};
+
+QueryBuilder.defaults({ lang_code: 'az' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.bg.js b/assets/i18n/query-builder.bg.js
new file mode 100644
index 00000000..abde20a5
--- /dev/null
+++ b/assets/i18n/query-builder.bg.js
@@ -0,0 +1,79 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Bulgarian (bg)
+ * Author: Valentin Hristov
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['bg'] = {
+  "__locale": "Bulgarian (bg)",
+  "__author": "Valentin Hristov",
+  "add_rule": "Добави правило",
+  "add_group": "Добави група",
+  "delete_rule": "Изтрий",
+  "delete_group": "Изтрий",
+  "conditions": {
+    "AND": "И",
+    "OR": "ИЛИ"
+  },
+  "operators": {
+    "equal": "равно",
+    "not_equal": "различно",
+    "in": "в",
+    "not_in": "не е в",
+    "less": "по-малко",
+    "less_or_equal": "по-малко или равно",
+    "greater": "по-голям",
+    "greater_or_equal": "по-голям или равно",
+    "between": "между",
+    "not_between": "не е между",
+    "begins_with": "започва с",
+    "not_begins_with": "не започва с",
+    "contains": "съдържа",
+    "not_contains": "не съдържа",
+    "ends_with": "завършва с",
+    "not_ends_with": "не завършва с",
+    "is_empty": "е празно",
+    "is_not_empty": "не е празно",
+    "is_null": "е нищо",
+    "is_not_null": "различно от нищо"
+  },
+  "errors": {
+    "no_filter": "Не е избран филтър",
+    "empty_group": "Групата е празна",
+    "radio_empty": "Не е селектирана стойност",
+    "checkbox_empty": "Не е селектирана стойност",
+    "select_empty": "Не е селектирана стойност",
+    "string_empty": "Празна стойност",
+    "string_exceed_min_length": "Необходимо е да съдържа поне {0} символа",
+    "string_exceed_max_length": "Необходимо е да съдържа повече от {0} символа",
+    "string_invalid_format": "Невалиден формат ({0})",
+    "number_nan": "Не е число",
+    "number_not_integer": "Не е цяло число",
+    "number_not_double": "Не е реално число",
+    "number_exceed_min": "Трябва да е по-голямо от {0}",
+    "number_exceed_max": "Трябва да е по-малко от {0}",
+    "number_wrong_step": "Трябва да е кратно на {0}",
+    "datetime_empty": "Празна стойност",
+    "datetime_invalid": "Невалиден формат на дата ({0})",
+    "datetime_exceed_min": "Трябва да е след {0}",
+    "datetime_exceed_max": "Трябва да е преди {0}",
+    "boolean_not_valid": "Не е булева",
+    "operator_not_multiple": "Оператора \"{1}\" не може да приеме множество стойности"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'bg' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.cs.js b/assets/i18n/query-builder.cs.js
new file mode 100644
index 00000000..111316e9
--- /dev/null
+++ b/assets/i18n/query-builder.cs.js
@@ -0,0 +1,79 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Čeština (cs)
+ * Author: Megaplan, mborisv <bm@megaplan.ru>
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['cs'] = {
+  "__locale": "Čeština (cs)",
+  "__author": "Megaplan, mborisv <bm@megaplan.ru>",
+  "add_rule": "Přidat",
+  "add_group": "Přidat skupinu",
+  "delete_rule": "Odstranit",
+  "delete_group": "Odstranit skupinu",
+  "conditions": {
+    "AND": "I",
+    "OR": "NEBO"
+  },
+  "operators": {
+    "equal": "stejně",
+    "not_equal": "liší se",
+    "in": "z uvedených",
+    "not_in": "ne z uvedených",
+    "less": "méně",
+    "less_or_equal": "méně nebo stejně",
+    "greater": "více",
+    "greater_or_equal": "více nebo stejně",
+    "between": "mezi",
+    "begins_with": "začíná z",
+    "not_begins_with": "nezačíná z",
+    "contains": "obsahuje",
+    "not_contains": "neobsahuje",
+    "ends_with": "končí na",
+    "not_ends_with": "nekončí na",
+    "is_empty": "prázdný řádek",
+    "is_not_empty": "neprázdný řádek",
+    "is_null": "prázdno",
+    "is_not_null": "plno"
+  },
+  "errors": {
+    "no_filter": "není vybraný filtr",
+    "empty_group": "prázdná skupina",
+    "radio_empty": "Není udaná hodnota",
+    "checkbox_empty": "Není udaná hodnota",
+    "select_empty": "Není udaná hodnota",
+    "string_empty": "Nevyplněno",
+    "string_exceed_min_length": "Musí obsahovat více {0} symbolů",
+    "string_exceed_max_length": "Musí obsahovat méně {0} symbolů",
+    "string_invalid_format": "Nesprávný formát ({0})",
+    "number_nan": "Žádné číslo",
+    "number_not_integer": "Žádné číslo",
+    "number_not_double": "Žádné číslo",
+    "number_exceed_min": "Musí být více {0}",
+    "number_exceed_max": "Musí být méně {0}",
+    "number_wrong_step": "Musí být násobkem {0}",
+    "datetime_empty": "Nevyplněno",
+    "datetime_invalid": "Nesprávný formát datumu ({0})",
+    "datetime_exceed_min": "Musí být po {0}",
+    "datetime_exceed_max": "Musí být do {0}",
+    "boolean_not_valid": "Nelogické",
+    "operator_not_multiple": "Operátor \"{1}\" nepodporuje mnoho hodnot"
+  },
+  "invert": "invertní"
+};
+
+QueryBuilder.defaults({ lang_code: 'cs' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.da.js b/assets/i18n/query-builder.da.js
new file mode 100644
index 00000000..242440dd
--- /dev/null
+++ b/assets/i18n/query-builder.da.js
@@ -0,0 +1,56 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Danish (da)
+ * Author: Jna Borup Coyle, github@coyle.dk
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['da'] = {
+  "__locale": "Danish (da)",
+  "__author": "Jna Borup Coyle, github@coyle.dk",
+  "add_rule": "Tilføj regel",
+  "add_group": "Tilføj gruppe",
+  "delete_rule": "Slet regel",
+  "delete_group": "Slet gruppe",
+  "conditions": {
+    "AND": "OG",
+    "OR": "ELLER"
+  },
+  "condition_and": "OG",
+  "condition_or": "ELLER",
+  "operators": {
+    "equal": "lig med",
+    "not_equal": "ikke lige med",
+    "in": "i",
+    "not_in": "ikke i",
+    "less": "mindre",
+    "less_or_equal": "mindre eller lig med",
+    "greater": "større",
+    "greater_or_equal": "større eller lig med",
+    "begins_with": "begynder med",
+    "not_begins_with": "begynder ikke med",
+    "contains": "indeholder",
+    "not_contains": "indeholder ikke",
+    "ends_with": "slutter med",
+    "not_ends_with": "slutter ikke med",
+    "is_empty": "er tom",
+    "is_not_empty": "er ikke tom",
+    "is_null": "er null",
+    "is_not_null": "er ikke null"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'da' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.de.js b/assets/i18n/query-builder.de.js
new file mode 100644
index 00000000..1145df0a
--- /dev/null
+++ b/assets/i18n/query-builder.de.js
@@ -0,0 +1,76 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: German (de)
+ * Author: "raimu"
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['de'] = {
+  "__locale": "German (de)",
+  "__author": "\"raimu\"",
+  "add_rule": "neue Regel",
+  "add_group": "neue Gruppe",
+  "delete_rule": "löschen",
+  "delete_group": "löschen",
+  "conditions": {
+    "AND": "UND",
+    "OR": "ODER"
+  },
+  "operators": {
+    "equal": "gleich",
+    "not_equal": "ungleich",
+    "in": "in",
+    "not_in": "nicht in",
+    "less": "kleiner",
+    "less_or_equal": "kleiner gleich",
+    "greater": "größer",
+    "greater_or_equal": "größer gleich",
+    "between": "zwischen",
+    "not_between": "nicht zwischen",
+    "begins_with": "beginnt mit",
+    "not_begins_with": "beginnt nicht mit",
+    "contains": "enthält",
+    "not_contains": "enthält nicht",
+    "ends_with": "endet mit",
+    "not_ends_with": "endet nicht mit",
+    "is_empty": "ist leer",
+    "is_not_empty": "ist nicht leer",
+    "is_null": "ist null",
+    "is_not_null": "ist nicht null"
+  },
+  "errors": {
+    "no_filter": "Kein Filter ausgewählt",
+    "empty_group": "Die Gruppe ist leer",
+    "radio_empty": "Kein Wert ausgewählt",
+    "checkbox_empty": "Kein Wert ausgewählt",
+    "select_empty": "Kein Wert ausgewählt",
+    "string_empty": "Leerer Wert",
+    "string_exceed_min_length": "Muss mindestens {0} Zeichen enthalten",
+    "string_exceed_max_length": "Darf nicht mehr als {0} Zeichen enthalten",
+    "string_invalid_format": "Ungültiges Format ({0})",
+    "number_nan": "Keine Zahl",
+    "number_not_integer": "Keine Ganzzahl",
+    "number_not_double": "Keine Dezimalzahl",
+    "number_exceed_min": "Muss größer als {0} sein",
+    "number_exceed_max": "Muss kleiner als {0} sein",
+    "number_wrong_step": "Muss ein Vielfaches von {0} sein",
+    "datetime_invalid": "Ungültiges Datumsformat ({0})",
+    "datetime_exceed_min": "Muss nach dem {0} sein",
+    "datetime_exceed_max": "Muss vor dem {0} sein"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'de' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.el.js b/assets/i18n/query-builder.el.js
new file mode 100644
index 00000000..7f11b0d5
--- /dev/null
+++ b/assets/i18n/query-builder.el.js
@@ -0,0 +1,80 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Greek (el)
+ * Author: Stelios Patsatzis, https://www.linkedin.com/in/stelios-patsatzis-89841561
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['el'] = {
+  "__locale": "Greek (el)",
+  "__author": "Stelios Patsatzis, https://www.linkedin.com/in/stelios-patsatzis-89841561",
+  "add_rule": "Προσθήκη Συνθήκης",
+  "add_group": "Προσθήκη Ομάδας",
+  "delete_rule": "Διαγραφή",
+  "delete_group": "Διαγραφή",
+  "conditions": {
+    "AND": "Λογικό ΚΑΙ",
+    "OR": "Λογικό Η"
+  },
+  "operators": {
+    "equal": "Ισούται με",
+    "not_equal": "Διάφορο από ",
+    "in": "Περιέχει",
+    "not_in": "Δεν Περιέχει",
+    "less": "Λιγότερο από",
+    "less_or_equal": "Λιγότερο ή Ίσο",
+    "greater": "Μεγαλύτερο από",
+    "greater_or_equal": "Μεγαλύτερο ή Ίσο",
+    "between": "Μεταξύ",
+    "not_between": "Εκτός",
+    "begins_with": "Αρχίζει με",
+    "not_begins_with": "Δεν αρχίζει με",
+    "contains": "Περιέχει",
+    "not_contains": "Δεν περιέχει",
+    "ends_with": "Τελειώνει σε",
+    "not_ends_with": "Δεν τελειώνει σε",
+    "is_empty": "Είναι άδειο",
+    "is_not_empty": "Δεν είναι άδειο",
+    "is_null": "Είναι NULL",
+    "is_not_null": "Δεν είναι NULL"
+  },
+  "errors": {
+    "no_filter": "Χωρίς φίλτρα",
+    "empty_group": "Άδεια ομάδα",
+    "radio_empty": "Χωρίς τιμή",
+    "checkbox_empty": "Χωρίς τιμή",
+    "select_empty": "Χωρίς τιμή",
+    "string_empty": "Χωρίς τιμή",
+    "string_exceed_min_length": "Ελάχιστο όριο {0} χαρακτήρων",
+    "string_exceed_max_length": "Μέγιστο όριο {0} χαρακτήρων",
+    "string_invalid_format": "Λανθασμένη μορφή ({0})",
+    "number_nan": "Δεν είναι αριθμός",
+    "number_not_integer": "Δεν είναι ακέραιος αριθμός",
+    "number_not_double": "Δεν είναι πραγματικός αριθμός",
+    "number_exceed_min": "Πρέπει να είναι μεγαλύτερο απο {0}",
+    "number_exceed_max": "Πρέπει να είναι μικρότερο απο {0}",
+    "number_wrong_step": "Πρέπει να είναι πολλαπλάσιο του {0}",
+    "datetime_empty": "Χωρίς τιμή",
+    "datetime_invalid": "Λανθασμένη μορφή ημερομηνίας ({0})",
+    "datetime_exceed_min": "Νεότερο από {0}",
+    "datetime_exceed_max": "Παλαιότερο από {0}",
+    "boolean_not_valid": "Δεν είναι BOOLEAN",
+    "operator_not_multiple": "Η συνθήκη \"{1}\" δεν μπορεί να δεχθεί πολλαπλές τιμές"
+  },
+  "invert": "Εναλλαγή"
+};
+
+QueryBuilder.defaults({ lang_code: 'el' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.en.js b/assets/i18n/query-builder.en.js
new file mode 100644
index 00000000..e142d110
--- /dev/null
+++ b/assets/i18n/query-builder.en.js
@@ -0,0 +1,83 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: English (en)
+ * Author: Damien "Mistic" Sorel, http://www.strangeplanet.fr
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['en'] = {
+  "__locale": "English (en)",
+  "__author": "Damien \"Mistic\" Sorel, http://www.strangeplanet.fr",
+  "add_rule": "Add rule",
+  "add_group": "Add group",
+  "delete_rule": "Delete",
+  "delete_group": "Delete",
+  "conditions": {
+    "AND": "AND",
+    "OR": "OR"
+  },
+  "operators": {
+    "equal": "equal",
+    "not_equal": "not equal",
+    "in": "in",
+    "not_in": "not in",
+    "less": "less",
+    "less_or_equal": "less or equal",
+    "greater": "greater",
+    "greater_or_equal": "greater or equal",
+    "between": "between",
+    "not_between": "not between",
+    "begins_with": "begins with",
+    "not_begins_with": "doesn't begin with",
+    "contains": "contains",
+    "not_contains": "doesn't contain",
+    "ends_with": "ends with",
+    "not_ends_with": "doesn't end with",
+    "is_empty": "is empty",
+    "is_not_empty": "is not empty",
+    "is_null": "is null",
+    "is_not_null": "is not null"
+  },
+  "errors": {
+    "no_filter": "No filter selected",
+    "empty_group": "The group is empty",
+    "radio_empty": "No value selected",
+    "checkbox_empty": "No value selected",
+    "select_empty": "No value selected",
+    "string_empty": "Empty value",
+    "string_exceed_min_length": "Must contain at least {0} characters",
+    "string_exceed_max_length": "Must not contain more than {0} characters",
+    "string_invalid_format": "Invalid format ({0})",
+    "number_nan": "Not a number",
+    "number_not_integer": "Not an integer",
+    "number_not_double": "Not a real number",
+    "number_exceed_min": "Must be greater than {0}",
+    "number_exceed_max": "Must be lower than {0}",
+    "number_wrong_step": "Must be a multiple of {0}",
+    "number_between_invalid": "Invalid values, {0} is greater than {1}",
+    "datetime_empty": "Empty value",
+    "datetime_invalid": "Invalid date format ({0})",
+    "datetime_exceed_min": "Must be after {0}",
+    "datetime_exceed_max": "Must be before {0}",
+    "datetime_between_invalid": "Invalid values, {0} is greater than {1}",
+    "boolean_not_valid": "Not a boolean",
+    "operator_not_multiple": "Operator \"{1}\" cannot accept multiple values"
+  },
+  "invert": "Invert",
+  "NOT": "NOT"
+};
+
+QueryBuilder.defaults({ lang_code: 'en' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.es.js b/assets/i18n/query-builder.es.js
new file mode 100644
index 00000000..af736958
--- /dev/null
+++ b/assets/i18n/query-builder.es.js
@@ -0,0 +1,81 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Spanish (es)
+ * Author: "pyarza", "kddlb"
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['es'] = {
+  "__locale": "Spanish (es)",
+  "__author": "\"pyarza\", \"kddlb\"",
+  "add_rule": "Añadir regla",
+  "add_group": "Añadir grupo",
+  "delete_rule": "Borrar",
+  "delete_group": "Borrar",
+  "conditions": {
+    "AND": "Y",
+    "OR": "O"
+  },
+  "operators": {
+    "equal": "igual",
+    "not_equal": "distinto",
+    "in": "en",
+    "not_in": "no en",
+    "less": "menor",
+    "less_or_equal": "menor o igual",
+    "greater": "mayor",
+    "greater_or_equal": "mayor o igual",
+    "between": "entre",
+    "not_between": "no está entre",
+    "begins_with": "empieza por",
+    "not_begins_with": "no empieza por",
+    "contains": "contiene",
+    "not_contains": "no contiene",
+    "ends_with": "acaba con",
+    "not_ends_with": "no acaba con",
+    "is_empty": "está vacío",
+    "is_not_empty": "no está vacío",
+    "is_null": "es nulo",
+    "is_not_null": "no es nulo"
+  },
+  "errors": {
+    "no_filter": "No se ha seleccionado ningún filtro",
+    "empty_group": "El grupo está vacío",
+    "radio_empty": "Ningún valor seleccionado",
+    "checkbox_empty": "Ningún valor seleccionado",
+    "select_empty": "Ningún valor seleccionado",
+    "string_empty": "Cadena vacía",
+    "string_exceed_min_length": "Debe contener al menos {0} caracteres",
+    "string_exceed_max_length": "No debe contener más de {0} caracteres",
+    "string_invalid_format": "Formato inválido ({0})",
+    "number_nan": "No es un número",
+    "number_not_integer": "No es un número entero",
+    "number_not_double": "No es un número real",
+    "number_exceed_min": "Debe ser mayor que {0}",
+    "number_exceed_max": "Debe ser menor que {0}",
+    "number_wrong_step": "Debe ser múltiplo de {0}",
+    "datetime_invalid": "Formato de fecha inválido ({0})",
+    "datetime_exceed_min": "Debe ser posterior a {0}",
+    "datetime_exceed_max": "Debe ser anterior a {0}",
+    "number_between_invalid": "Valores Inválidos, {0} es mayor que {1}",
+    "datetime_empty": "Campo vacio",
+    "datetime_between_invalid": "Valores Inválidos, {0} es mayor que {1}",
+    "boolean_not_valid": "No es booleano",
+    "operator_not_multiple": "El operador \"{1}\" no puede aceptar valores multiples"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'es' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.fa-IR.js b/assets/i18n/query-builder.fa-IR.js
new file mode 100644
index 00000000..ef27b355
--- /dev/null
+++ b/assets/i18n/query-builder.fa-IR.js
@@ -0,0 +1,79 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Farsi (fa-ir)
+ * Author: Behzad Sedighzade, behzad.sedighzade@gmail.com
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['fa-IR'] = {
+  "__locale": "Farsi (fa-ir)",
+  "__author": "Behzad Sedighzade, behzad.sedighzade@gmail.com",
+  "add_rule": "افزودن قاعده",
+  "add_group": "افزودن گروه",
+  "delete_rule": "حذف قاعده",
+  "delete_group": "حذف گروه",
+  "conditions": {
+    "AND": "و",
+    "OR": "یا"
+  },
+  "operators": {
+    "equal": "برابر با",
+    "not_equal": "مخالف",
+    "in": "شامل مجموعه شود",
+    "not_in": "شامل مجموعه نشود",
+    "less": "کمتر از",
+    "less_or_equal": "کمتر یا مساوی با",
+    "greater": "بزرگتر از",
+    "greater_or_equal": "بزرگتر یا مساوی با",
+    "between": "مابین",
+    "not_between": "مابین نباشد",
+    "begins_with": "شروع شود با",
+    "not_begins_with": "شروع نشود با",
+    "contains": "شامل شود",
+    "not_contains": "شامل نشود",
+    "ends_with": "خاتمه یابد با",
+    "not_ends_with": "خاتمه نیابد با",
+    "is_empty": "خالی باشد",
+    "is_not_empty": "خالی نباشد",
+    "is_null": "باشد ( null ) پوچ",
+    "is_not_null": "نباشد( null ) پوچ "
+  },
+  "errors": {
+    "no_filter": "هیچ قاعده ای انتخاب نشده است",
+    "empty_group": "گروه خالی است",
+    "radio_empty": "مقداری انتخاب نشده است",
+    "checkbox_empty": "مقداری انتخاب نشده است",
+    "select_empty": "مقداری انتخاب نشده است",
+    "string_empty": "مقدار متنی خالی است",
+    "string_exceed_min_length": "رشته حداقل باید {0} عدد حرف داشته باشد",
+    "string_exceed_max_length": "رشته حداکثر {0} عدد حرف می تواند قبول کند",
+    "string_invalid_format": "قالب رشته {0}  نامعتبر ست",
+    "number_nan": "عدد وارد کنید",
+    "number_not_integer": "مقدار صحیح وارد کنید",
+    "number_not_double": "مقدار اعشاری وارد کنید",
+    "number_exceed_min": "باید از {0} بزرگتر باشد",
+    "number_exceed_max": "باید از {0} کمتر باشد",
+    "number_wrong_step": "باید مضربی از {0} باشد",
+    "datetime_empty": "مقدار تاریخ خالی وارد شده!",
+    "datetime_invalid": "قالب تاریخ ( {0} )  اشتباه است",
+    "datetime_exceed_min": "باید بعد از {0} باشد",
+    "datetime_exceed_max": "باید قبل  از {0} باشد",
+    "boolean_not_valid": "مقدار دودویی وارد کنید",
+    "operator_not_multiple": "اپراتور \"{1}\" نمی تواند چند مقدار قبول کند"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'fa-IR' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.fr.js b/assets/i18n/query-builder.fr.js
new file mode 100644
index 00000000..d0e601a8
--- /dev/null
+++ b/assets/i18n/query-builder.fr.js
@@ -0,0 +1,83 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: French (fr)
+ * Author: Damien "Mistic" Sorel, http://www.strangeplanet.fr
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['fr'] = {
+  "__locale": "French (fr)",
+  "__author": "Damien \"Mistic\" Sorel, http://www.strangeplanet.fr",
+  "add_rule": "Ajouter une règle",
+  "add_group": "Ajouter un groupe",
+  "delete_rule": "Supprimer",
+  "delete_group": "Supprimer",
+  "conditions": {
+    "AND": "ET",
+    "OR": "OU"
+  },
+  "operators": {
+    "equal": "est égal à",
+    "not_equal": "n'est pas égal à",
+    "in": "est compris dans",
+    "not_in": "n'est pas compris dans",
+    "less": "est inférieur à",
+    "less_or_equal": "est inférieur ou égal à",
+    "greater": "est supérieur à",
+    "greater_or_equal": "est supérieur ou égal à",
+    "between": "est entre",
+    "not_between": "n'est pas entre",
+    "begins_with": "commence par",
+    "not_begins_with": "ne commence pas par",
+    "contains": "contient",
+    "not_contains": "ne contient pas",
+    "ends_with": "finit par",
+    "not_ends_with": "ne finit pas par",
+    "is_empty": "est vide",
+    "is_not_empty": "n'est pas vide",
+    "is_null": "est nul",
+    "is_not_null": "n'est pas nul"
+  },
+  "errors": {
+    "no_filter": "Aucun filtre sélectionné",
+    "empty_group": "Le groupe est vide",
+    "radio_empty": "Pas de valeur selectionnée",
+    "checkbox_empty": "Pas de valeur selectionnée",
+    "select_empty": "Pas de valeur selectionnée",
+    "string_empty": "Valeur vide",
+    "string_exceed_min_length": "Doit contenir au moins {0} caractères",
+    "string_exceed_max_length": "Ne doit pas contenir plus de {0} caractères",
+    "string_invalid_format": "Format invalide ({0})",
+    "number_nan": "N'est pas un nombre",
+    "number_not_integer": "N'est pas un entier",
+    "number_not_double": "N'est pas un nombre réel",
+    "number_exceed_min": "Doit être plus grand que {0}",
+    "number_exceed_max": "Doit être plus petit que {0}",
+    "number_wrong_step": "Doit être un multiple de {0}",
+    "number_between_invalid": "Valeurs invalides, {0} est plus grand que {1}",
+    "datetime_empty": "Valeur vide",
+    "datetime_invalid": "Fomat de date invalide ({0})",
+    "datetime_exceed_min": "Doit être après {0}",
+    "datetime_exceed_max": "Doit être avant {0}",
+    "datetime_between_invalid": "Valeurs invalides, {0} est plus grand que {1}",
+    "boolean_not_valid": "N'est pas un booléen",
+    "operator_not_multiple": "L'opérateur \"{1}\" ne peut utiliser plusieurs valeurs"
+  },
+  "invert": "Inverser",
+  "NOT": "NON"
+};
+
+QueryBuilder.defaults({ lang_code: 'fr' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.he.js b/assets/i18n/query-builder.he.js
new file mode 100644
index 00000000..68d2063d
--- /dev/null
+++ b/assets/i18n/query-builder.he.js
@@ -0,0 +1,81 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Hebrew (he)
+ * Author: Kfir Stri https://github.com/kfirstri
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['he'] = {
+  "__locale": "Hebrew (he)",
+  "__author": "Kfir Stri https://github.com/kfirstri",
+  "add_rule": "הוסף כלל",
+  "add_group": "הוסף קבוצה",
+  "delete_rule": "מחק",
+  "delete_group": "מחק",
+  "conditions": {
+    "AND": "וגם",
+    "OR": "או"
+  },
+  "operators": {
+    "equal": "שווה ל",
+    "not_equal": "שונה מ",
+    "in": "חלק מ",
+    "not_in": "לא חלק מ",
+    "less": "פחות מ",
+    "less_or_equal": "פחות או שווה ל",
+    "greater": "גדול מ",
+    "greater_or_equal": "גדול או שווה ל",
+    "between": "בין",
+    "not_between": "לא בין",
+    "begins_with": "מתחיל ב",
+    "not_begins_with": "לא מתחיל ב",
+    "contains": "מכיל",
+    "not_contains": "לא מכיל",
+    "ends_with": "מסתיים ב",
+    "not_ends_with": "לא מסתיים ב",
+    "is_empty": "ריק",
+    "is_not_empty": "לא ריק",
+    "is_null": "חסר ערך",
+    "is_not_null": "לא חסר ערך"
+  },
+  "errors": {
+    "no_filter": "לא נבחרו מסננים",
+    "empty_group": "הקבוצה רירקה",
+    "radio_empty": "לא נבחר אף ערך",
+    "checkbox_empty": "לא נבחר אף ערך",
+    "select_empty": "לא נבחר אף ערך",
+    "string_empty": "חסר ערך",
+    "string_exceed_min_length": "המחרוזת חייבת להכיל לפחות {0} תווים",
+    "string_exceed_max_length": "המחרוזת לא יכולה להכיל יותר מ{0} תווים",
+    "string_invalid_format": "המחרוזת בפורמט שגוי ({0})",
+    "number_nan": "זהו לא מספר",
+    "number_not_integer": "המספר אינו מספר שלם",
+    "number_not_double": "המספר אינו מספר עשרוני",
+    "number_exceed_min": "המספר צריך להיות גדול מ {0}",
+    "number_exceed_max": "המספר צריך להיות קטן מ{0}",
+    "number_wrong_step": "המספר צריך להיות כפולה של {0}",
+    "datetime_empty": "תאריך ריק",
+    "datetime_invalid": "פורמט תאריך שגוי ({0})",
+    "datetime_exceed_min": "התאריך חייב להיות אחרי {0}",
+    "datetime_exceed_max": "התאריך חייב להיות לפני {0}",
+    "boolean_not_valid": "זהו לא בוליאני",
+    "operator_not_multiple": "האופרטור \"{1}\" לא יכול לקבל ערכים מרובים"
+  },
+  "invert": "הפוך שאילתא",
+  "NOT": "לא"
+};
+
+QueryBuilder.defaults({ lang_code: 'he' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.it.js b/assets/i18n/query-builder.it.js
new file mode 100644
index 00000000..e0ca54f2
--- /dev/null
+++ b/assets/i18n/query-builder.it.js
@@ -0,0 +1,79 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Italian (it)
+ * Author: davegraziosi
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['it'] = {
+  "__locale": "Italian (it)",
+  "__author": "davegraziosi",
+  "add_rule": "Aggiungi regola",
+  "add_group": "Aggiungi gruppo",
+  "delete_rule": "Elimina",
+  "delete_group": "Elimina",
+  "conditions": {
+    "AND": "E",
+    "OR": "O"
+  },
+  "operators": {
+    "equal": "uguale",
+    "not_equal": "non uguale",
+    "in": "in",
+    "not_in": "non in",
+    "less": "minore",
+    "less_or_equal": "minore o uguale",
+    "greater": "maggiore",
+    "greater_or_equal": "maggiore o uguale",
+    "between": "compreso tra",
+    "not_between": "non compreso tra",
+    "begins_with": "inizia con",
+    "not_begins_with": "non inizia con",
+    "contains": "contiene",
+    "not_contains": "non contiene",
+    "ends_with": "finisce con",
+    "not_ends_with": "non finisce con",
+    "is_empty": "è vuoto",
+    "is_not_empty": "non è vuoto",
+    "is_null": "è nullo",
+    "is_not_null": "non è nullo"
+  },
+  "errors": {
+    "no_filter": "Nessun filtro selezionato",
+    "empty_group": "Il gruppo è vuoto",
+    "radio_empty": "No value selected",
+    "checkbox_empty": "Nessun valore selezionato",
+    "select_empty": "Nessun valore selezionato",
+    "string_empty": "Valore vuoto",
+    "string_exceed_min_length": "Deve contenere almeno {0} caratteri",
+    "string_exceed_max_length": "Non deve contenere più di {0} caratteri",
+    "string_invalid_format": "Formato non valido ({0})",
+    "number_nan": "Non è un numero",
+    "number_not_integer": "Non è un intero",
+    "number_not_double": "Non è un numero con la virgola",
+    "number_exceed_min": "Deve essere maggiore di {0}",
+    "number_exceed_max": "Deve essere minore di {0}",
+    "number_wrong_step": "Deve essere multiplo di {0}",
+    "datetime_empty": "Valore vuoto",
+    "datetime_invalid": "Formato data non valido ({0})",
+    "datetime_exceed_min": "Deve essere successivo a {0}",
+    "datetime_exceed_max": "Deve essere precedente a {0}",
+    "boolean_not_valid": "Non è un booleano",
+    "operator_not_multiple": "L'Operatore {0} non può accettare valori multipli"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'it' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.nl.js b/assets/i18n/query-builder.nl.js
new file mode 100644
index 00000000..1cb59338
--- /dev/null
+++ b/assets/i18n/query-builder.nl.js
@@ -0,0 +1,76 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Dutch (nl)
+ * Author: "Roywcm"
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['nl'] = {
+  "__locale": "Dutch (nl)",
+  "__author": "\"Roywcm\"",
+  "add_rule": "Nieuwe regel",
+  "add_group": "Nieuwe groep",
+  "delete_rule": "Verwijder",
+  "delete_group": "Verwijder",
+  "conditions": {
+    "AND": "EN",
+    "OR": "OF"
+  },
+  "operators": {
+    "equal": "gelijk",
+    "not_equal": "niet gelijk",
+    "in": "in",
+    "not_in": "niet in",
+    "less": "minder",
+    "less_or_equal": "minder of gelijk",
+    "greater": "groter",
+    "greater_or_equal": "groter of gelijk",
+    "between": "tussen",
+    "not_between": "niet tussen",
+    "begins_with": "begint met",
+    "not_begins_with": "begint niet met",
+    "contains": "bevat",
+    "not_contains": "bevat niet",
+    "ends_with": "eindigt met",
+    "not_ends_with": "eindigt niet met",
+    "is_empty": "is leeg",
+    "is_not_empty": "is niet leeg",
+    "is_null": "is null",
+    "is_not_null": "is niet null"
+  },
+  "errors": {
+    "no_filter": "Geen filter geselecteerd",
+    "empty_group": "De groep is leeg",
+    "radio_empty": "Geen waarde geselecteerd",
+    "checkbox_empty": "Geen waarde geselecteerd",
+    "select_empty": "Geen waarde geselecteerd",
+    "string_empty": "Lege waarde",
+    "string_exceed_min_length": "Dient minstens {0} karakters te bevatten",
+    "string_exceed_max_length": "Dient niet meer dan {0} karakters te bevatten",
+    "string_invalid_format": "Ongeldig format ({0})",
+    "number_nan": "Niet een nummer",
+    "number_not_integer": "Geen geheel getal",
+    "number_not_double": "Geen echt nummer",
+    "number_exceed_min": "Dient groter te zijn dan {0}",
+    "number_exceed_max": "Dient lager te zijn dan {0}",
+    "number_wrong_step": "Dient een veelvoud te zijn van {0}",
+    "datetime_invalid": "Ongeldige datumformat ({0})",
+    "datetime_exceed_min": "Dient na {0}",
+    "datetime_exceed_max": "Dient voor {0}"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'nl' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.no.js b/assets/i18n/query-builder.no.js
new file mode 100644
index 00000000..6387aef7
--- /dev/null
+++ b/assets/i18n/query-builder.no.js
@@ -0,0 +1,54 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Norwegian (no)
+ * Author: Jna Borup Coyle, github@coyle.dk
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['no'] = {
+  "__locale": "Norwegian (no)",
+  "__author": "Jna Borup Coyle, github@coyle.dk",
+  "add_rule": "Legg til regel",
+  "add_group": "Legg til gruppe",
+  "delete_rule": "Slett regel",
+  "delete_group": "Slett gruppe",
+  "conditions": {
+    "AND": "OG",
+    "OR": "ELLER"
+  },
+  "operators": {
+    "equal": "er lik",
+    "not_equal": "er ikke lik",
+    "in": "finnes i",
+    "not_in": "finnes ikke i",
+    "less": "er mindre enn",
+    "less_or_equal": "er mindre eller lik",
+    "greater": "er større enn",
+    "greater_or_equal": "er større eller lik",
+    "begins_with": "begynner med",
+    "not_begins_with": "begynner ikke med",
+    "contains": "inneholder",
+    "not_contains": "inneholder ikke",
+    "ends_with": "slutter med",
+    "not_ends_with": "slutter ikke med",
+    "is_empty": "er tom",
+    "is_not_empty": "er ikke tom",
+    "is_null": "er null",
+    "is_not_null": "er ikke null"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'no' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.pl.js b/assets/i18n/query-builder.pl.js
new file mode 100644
index 00000000..b766fbf1
--- /dev/null
+++ b/assets/i18n/query-builder.pl.js
@@ -0,0 +1,80 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Polish (pl)
+ * Author: Artur Smolarek
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['pl'] = {
+  "__locale": "Polish (pl)",
+  "__author": "Artur Smolarek",
+  "add_rule": "Dodaj regułę",
+  "add_group": "Dodaj grupę",
+  "delete_rule": "Usuń",
+  "delete_group": "Usuń",
+  "conditions": {
+    "AND": "ORAZ",
+    "OR": "LUB"
+  },
+  "operators": {
+    "equal": "równa się",
+    "not_equal": "jest różne od",
+    "in": "zawiera",
+    "not_in": "nie zawiera",
+    "less": "mniejsze",
+    "less_or_equal": "mniejsze lub równe",
+    "greater": "większe",
+    "greater_or_equal": "większe lub równe",
+    "between": "pomiędzy",
+    "not_between": "nie jest pomiędzy",
+    "begins_with": "rozpoczyna się od",
+    "not_begins_with": "nie rozpoczyna się od",
+    "contains": "zawiera",
+    "not_contains": "nie zawiera",
+    "ends_with": "kończy się na",
+    "not_ends_with": "nie kończy się na",
+    "is_empty": "jest puste",
+    "is_not_empty": "nie jest puste",
+    "is_null": "jest niezdefiniowane",
+    "is_not_null": "nie jest niezdefiniowane"
+  },
+  "errors": {
+    "no_filter": "Nie wybrano żadnego filtra",
+    "empty_group": "Grupa jest pusta",
+    "radio_empty": "Nie wybrano wartości",
+    "checkbox_empty": "Nie wybrano wartości",
+    "select_empty": "Nie wybrano wartości",
+    "string_empty": "Nie wpisano wartości",
+    "string_exceed_min_length": "Minimalna długość to {0} znaków",
+    "string_exceed_max_length": "Maksymalna długość to {0} znaków",
+    "string_invalid_format": "Nieprawidłowy format ({0})",
+    "number_nan": "To nie jest liczba",
+    "number_not_integer": "To nie jest liczba całkowita",
+    "number_not_double": "To nie jest liczba rzeczywista",
+    "number_exceed_min": "Musi być większe niż {0}",
+    "number_exceed_max": "Musi być mniejsze niż {0}",
+    "number_wrong_step": "Musi być wielokrotnością {0}",
+    "datetime_empty": "Nie wybrano wartości",
+    "datetime_invalid": "Nieprawidłowy format daty ({0})",
+    "datetime_exceed_min": "Musi być po {0}",
+    "datetime_exceed_max": "Musi być przed {0}",
+    "boolean_not_valid": "Niepoprawna wartość logiczna",
+    "operator_not_multiple": "Operator \"{1}\" nie przyjmuje wielu wartości"
+  },
+  "invert": "Odwróć"
+};
+
+QueryBuilder.defaults({ lang_code: 'pl' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.pt-BR.js b/assets/i18n/query-builder.pt-BR.js
new file mode 100644
index 00000000..c0b5bd98
--- /dev/null
+++ b/assets/i18n/query-builder.pt-BR.js
@@ -0,0 +1,80 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Brazilian Portuguese (pr-BR)
+ * Author: Leandro Gehlen, leandrogehlen@gmail.com; Marcos Ferretti, marcosvferretti@gmail.com
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['pt-BR'] = {
+  "__locale": "Brazilian Portuguese (pr-BR)",
+  "__author": "Leandro Gehlen, leandrogehlen@gmail.com; Marcos Ferretti, marcosvferretti@gmail.com",
+  "add_rule": "Nova Regra",
+  "add_group": "Novo Grupo",
+  "delete_rule": "Excluir",
+  "delete_group": "Excluir",
+  "conditions": {
+    "AND": "E",
+    "OR": "OU"
+  },
+  "operators": {
+    "equal": "Igual",
+    "not_equal": "Diferente",
+    "in": "Contido",
+    "not_in": "Não contido",
+    "less": "Menor",
+    "less_or_equal": "Menor ou igual",
+    "greater": "Maior",
+    "greater_or_equal": "Maior ou igual",
+    "between": "Entre",
+    "not_between": "Não entre",
+    "begins_with": "Iniciando com",
+    "not_begins_with": "Não iniciando com",
+    "contains": "Contém",
+    "not_contains": "Não contém",
+    "ends_with": "Terminando com",
+    "not_ends_with": "Terminando sem",
+    "is_empty": "É vazio",
+    "is_not_empty": "Não é vazio",
+    "is_null": "É nulo",
+    "is_not_null": "Não é nulo"
+  },
+  "errors": {
+    "no_filter": "Nenhum filtro selecionado",
+    "empty_group": "O grupo está vazio",
+    "radio_empty": "Nenhum valor selecionado",
+    "checkbox_empty": "Nenhum valor selecionado",
+    "select_empty": "Nenhum valor selecionado",
+    "string_empty": "Valor vazio",
+    "string_exceed_min_length": "É necessário conter pelo menos {0} caracteres",
+    "string_exceed_max_length": "É necessário conter mais de {0} caracteres",
+    "string_invalid_format": "Formato inválido ({0})",
+    "number_nan": "Não é um número",
+    "number_not_integer": "Não é um número inteiro",
+    "number_not_double": "Não é um número real",
+    "number_exceed_min": "É necessário ser maior que {0}",
+    "number_exceed_max": "É necessário ser menor que {0}",
+    "number_wrong_step": "É necessário ser múltiplo de {0}",
+    "datetime_invalid": "Formato de data inválido ({0})",
+    "datetime_exceed_min": "É necessário ser superior a {0}",
+    "datetime_exceed_max": "É necessário ser inferior a {0}",
+    "datetime_empty": "Nenhuma data selecionada",
+    "boolean_not_valid": "Não é um valor booleano",
+    "operator_not_multiple": "O operador \"{1}\" não aceita valores múltiplos"
+  },
+  "invert": "Inverter"
+};
+
+QueryBuilder.defaults({ lang_code: 'pt-BR' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.pt-PT.js b/assets/i18n/query-builder.pt-PT.js
new file mode 100644
index 00000000..d88cfc01
--- /dev/null
+++ b/assets/i18n/query-builder.pt-PT.js
@@ -0,0 +1,75 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Portuguese (pt-PT)
+ * Author: Miguel Guerreiro, migas.csi@gmail.com
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['pt-PT'] = {
+  "__locale": "Portuguese (pt-PT)",
+  "__author": "Miguel Guerreiro, migas.csi@gmail.com",
+  "add_rule": "Nova Regra",
+  "add_group": "Novo Grupo",
+  "delete_rule": "Excluir",
+  "delete_group": "Excluir",
+  "conditions": {
+    "AND": "E",
+    "OR": "OU"
+  },
+  "operators": {
+    "equal": "Igual a",
+    "not_equal": "Diferente de",
+    "in": "Contido",
+    "not_in": "Não contido",
+    "less": "Menor que",
+    "less_or_equal": "Menor ou igual a",
+    "greater": "Maior que",
+    "greater_or_equal": "Maior ou igual que",
+    "between": "Entre",
+    "begins_with": "Começar por",
+    "not_begins_with": "Não a começar por",
+    "contains": "Contém",
+    "not_contains": "Não contém",
+    "ends_with": "Terminando com",
+    "not_ends_with": "Terminando sem",
+    "is_empty": "É vazio",
+    "is_not_empty": "Não é vazio",
+    "is_null": "É nulo",
+    "is_not_null": "Não é nulo"
+  },
+  "errors": {
+    "no_filter": "Nenhum filtro selecionado",
+    "empty_group": "O grupo está vazio",
+    "radio_empty": "Nenhum valor selecionado",
+    "checkbox_empty": "Nenhum valor selecionado",
+    "select_empty": "Nenhum valor selecionado",
+    "string_empty": "Valor vazio",
+    "string_exceed_min_length": "É necessário conter pelo menos {0} caracteres",
+    "string_exceed_max_length": "É necessário conter mais de {0} caracteres",
+    "string_invalid_format": "Formato inválido ({0})",
+    "number_nan": "Não é um número",
+    "number_not_integer": "Não é um número inteiro",
+    "number_not_double": "Não é um número real",
+    "number_exceed_min": "É necessário ser maior que {0}",
+    "number_exceed_max": "É necessário ser menor que {0}",
+    "number_wrong_step": "É necessário ser múltiplo de {0}",
+    "datetime_invalid": "Formato de data inválido ({0})",
+    "datetime_exceed_min": "É necessário ser superior a {0}",
+    "datetime_exceed_max": "É necessário ser inferior a {0}"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'pt-PT' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.ro.js b/assets/i18n/query-builder.ro.js
new file mode 100644
index 00000000..c629b4bd
--- /dev/null
+++ b/assets/i18n/query-builder.ro.js
@@ -0,0 +1,54 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Romanian (ro)
+ * Author: ArianServ
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['ro'] = {
+  "__locale": "Romanian (ro)",
+  "__author": "ArianServ",
+  "add_rule": "Adaugă regulă",
+  "add_group": "Adaugă grup",
+  "delete_rule": "Şterge",
+  "delete_group": "Şterge",
+  "conditions": {
+    "AND": "ŞI",
+    "OR": "SAU"
+  },
+  "operators": {
+    "equal": "egal",
+    "not_equal": "diferit",
+    "in": "în",
+    "not_in": "nu în",
+    "less": "mai puţin",
+    "less_or_equal": "mai puţin sau egal",
+    "greater": "mai mare",
+    "greater_or_equal": "mai mare sau egal",
+    "begins_with": "începe cu",
+    "not_begins_with": "nu începe cu",
+    "contains": "conţine",
+    "not_contains": "nu conţine",
+    "ends_with": "se termină cu",
+    "not_ends_with": "nu se termină cu",
+    "is_empty": "este gol",
+    "is_not_empty": "nu este gol",
+    "is_null": "e nul",
+    "is_not_null": "nu e nul"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'ro' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.ru.js b/assets/i18n/query-builder.ru.js
new file mode 100644
index 00000000..e09665cd
--- /dev/null
+++ b/assets/i18n/query-builder.ru.js
@@ -0,0 +1,77 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Russian (ru)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['ru'] = {
+  "__locale": "Russian (ru)",
+  "add_rule": "Добавить",
+  "add_group": "Добавить группу",
+  "delete_rule": "Удалить",
+  "delete_group": "Удалить",
+  "conditions": {
+    "AND": "И",
+    "OR": "ИЛИ"
+  },
+  "operators": {
+    "equal": "равно",
+    "not_equal": "не равно",
+    "in": "из указанных",
+    "not_in": "не из указанных",
+    "less": "меньше",
+    "less_or_equal": "меньше или равно",
+    "greater": "больше",
+    "greater_or_equal": "больше или равно",
+    "between": "между",
+    "begins_with": "начинается с",
+    "not_begins_with": "не начинается с",
+    "contains": "содержит",
+    "not_contains": "не содержит",
+    "ends_with": "оканчивается на",
+    "not_ends_with": "не оканчивается на",
+    "is_empty": "пустая строка",
+    "is_not_empty": "не пустая строка",
+    "is_null": "пусто",
+    "is_not_null": "не пусто"
+  },
+  "errors": {
+    "no_filter": "Фильтр не выбран",
+    "empty_group": "Группа пуста",
+    "radio_empty": "Не выбранно значение",
+    "checkbox_empty": "Не выбранно значение",
+    "select_empty": "Не выбранно значение",
+    "string_empty": "Не заполненно",
+    "string_exceed_min_length": "Должен содержать больше {0} символов",
+    "string_exceed_max_length": "Должен содержать меньше {0} символов",
+    "string_invalid_format": "Неверный формат ({0})",
+    "number_nan": "Не число",
+    "number_not_integer": "Не число",
+    "number_not_double": "Не число",
+    "number_exceed_min": "Должно быть больше {0}",
+    "number_exceed_max": "Должно быть меньше, чем {0}",
+    "number_wrong_step": "Должно быть кратно {0}",
+    "datetime_empty": "Не заполненно",
+    "datetime_invalid": "Неверный формат даты ({0})",
+    "datetime_exceed_min": "Должно быть, после {0}",
+    "datetime_exceed_max": "Должно быть, до {0}",
+    "boolean_not_valid": "Не логическое",
+    "operator_not_multiple": "Оператор \"{1}\" не поддерживает много значений"
+  },
+  "invert": "Инвертировать"
+};
+
+QueryBuilder.defaults({ lang_code: 'ru' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.sq.js b/assets/i18n/query-builder.sq.js
new file mode 100644
index 00000000..ef2663e8
--- /dev/null
+++ b/assets/i18n/query-builder.sq.js
@@ -0,0 +1,78 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Albanian (sq)
+ * Author: Tomor Pupovci
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['sq'] = {
+  "__locale": "Albanian (sq)",
+  "__author": "Tomor Pupovci",
+  "add_rule": "Shto rregull",
+  "add_group": "Shto grup",
+  "delete_rule": "Fshij",
+  "delete_group": "Fshij",
+  "conditions": {
+    "AND": "DHE",
+    "OR": "OSE"
+  },
+  "operators": {
+    "equal": "barabartë",
+    "not_equal": "e ndryshme prej",
+    "in": "në",
+    "not_in": "jo në",
+    "less": "më e vogël",
+    "less_or_equal": "më e vogël ose e barabartë me",
+    "greater": "më e madhe",
+    "greater_or_equal": "më e madhe ose e barabartë",
+    "between": "në mes",
+    "begins_with": "fillon me",
+    "not_begins_with": "nuk fillon me",
+    "contains": "përmban",
+    "not_contains": "nuk përmban",
+    "ends_with": "mbaron me",
+    "not_ends_with": "nuk mbaron me",
+    "is_empty": "është e zbrazët",
+    "is_not_empty": "nuk është e zbrazët",
+    "is_null": "është null",
+    "is_not_null": "nuk është null"
+  },
+  "errors": {
+    "no_filter": "Nuk ka filter të zgjedhur",
+    "empty_group": "Grupi është i zbrazët",
+    "radio_empty": "Nuk ka vlerë të zgjedhur",
+    "checkbox_empty": "Nuk ka vlerë të zgjedhur",
+    "select_empty": "Nuk ka vlerë të zgjedhur",
+    "string_empty": "Vlerë e zbrazët",
+    "string_exceed_min_length": "Duhet të përmbajë së paku {0} karaktere",
+    "string_exceed_max_length": "Nuk duhet të përmbajë më shumë se {0} karaktere",
+    "string_invalid_format": "Format i pasaktë ({0})",
+    "number_nan": "Nuk është numër",
+    "number_not_integer": "Nuk është numër i plotë",
+    "number_not_double": "Nuk është numër me presje",
+    "number_exceed_min": "Duhet të jetë më i madh se {0}",
+    "number_exceed_max": "Duhet të jetë më i vogël se {0}",
+    "number_wrong_step": "Duhet të jetë shumëfish i {0}",
+    "datetime_empty": "Vlerë e zbrazët",
+    "datetime_invalid": "Format i pasaktë i datës ({0})",
+    "datetime_exceed_min": "Duhet të jetë pas {0}",
+    "datetime_exceed_max": "Duhet të jetë para {0}",
+    "boolean_not_valid": "Nuk është boolean",
+    "operator_not_multiple": "Operatori \"{1}\" nuk mund të pranojë vlera të shumëfishta"
+  }
+};
+
+QueryBuilder.defaults({ lang_code: 'sq' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.tr.js b/assets/i18n/query-builder.tr.js
new file mode 100644
index 00000000..c299bc2d
--- /dev/null
+++ b/assets/i18n/query-builder.tr.js
@@ -0,0 +1,82 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Turkish (tr)
+ * Author: Aykut Alpgiray Ateş
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['tr'] = {
+  "__locale": "Turkish (tr)",
+  "__author": "Aykut Alpgiray Ateş",
+  "add_rule": "Kural Ekle",
+  "add_group": "Grup Ekle",
+  "delete_rule": "Sil",
+  "delete_group": "Sil",
+  "conditions": {
+    "AND": "Ve",
+    "OR": "Veya"
+  },
+  "operators": {
+    "equal": "eşit",
+    "not_equal": "eşit değil",
+    "in": "içinde",
+    "not_in": "içinde değil",
+    "less": "küçük",
+    "less_or_equal": "küçük veya eşit",
+    "greater": "büyük",
+    "greater_or_equal": "büyük veya eşit",
+    "between": "arasında",
+    "not_between": "arasında değil",
+    "begins_with": "ile başlayan",
+    "not_begins_with": "ile başlamayan",
+    "contains": "içeren",
+    "not_contains": "içermeyen",
+    "ends_with": "ile biten",
+    "not_ends_with": "ile bitmeyen",
+    "is_empty": "boş ise",
+    "is_not_empty": "boş değil ise",
+    "is_null": "var ise",
+    "is_not_null": "yok ise"
+  },
+  "errors": {
+    "no_filter": "Bir filtre seçili değil",
+    "empty_group": "Grup bir eleman içermiyor",
+    "radio_empty": "Seçim yapılmalı",
+    "checkbox_empty": "Seçim yapılmalı",
+    "select_empty": "Seçim yapılmalı",
+    "string_empty": "Bir metin girilmeli",
+    "string_exceed_min_length": "En az {0} karakter girilmeli",
+    "string_exceed_max_length": "En fazla {0} karakter girilebilir",
+    "string_invalid_format": "Uyumsuz format ({0})",
+    "number_nan": "Sayı değil",
+    "number_not_integer": "Tam sayı değil",
+    "number_not_double": "Ondalıklı sayı değil",
+    "number_exceed_min": "Sayı {0}'den/dan daha büyük olmalı",
+    "number_exceed_max": "Sayı {0}'den/dan daha küçük olmalı",
+    "number_wrong_step": "{0} veya katı olmalı",
+    "number_between_invalid": "Geçersiz değerler, {0} değeri {1} değerinden büyük",
+    "datetime_empty": "Tarih Seçilmemiş",
+    "datetime_invalid": "Uygun olmayan tarih formatı ({0})",
+    "datetime_exceed_min": "{0} Tarihinden daha sonrası olmalı.",
+    "datetime_exceed_max": "{0} Tarihinden daha öncesi olmalı.",
+    "datetime_between_invalid": "Geçersiz değerler, {0} değeri {1} değerinden büyük",
+    "boolean_not_valid": "Değer Doğru/Yanlış(bool) olmalı",
+    "operator_not_multiple": "Operatör \"{1}\" birden fazla değer kabul etmiyor"
+  },
+  "invert": "Ters Çevir"
+};
+
+QueryBuilder.defaults({ lang_code: 'tr' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.ua.js b/assets/i18n/query-builder.ua.js
new file mode 100644
index 00000000..feec8afe
--- /dev/null
+++ b/assets/i18n/query-builder.ua.js
@@ -0,0 +1,79 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Ukrainian (ua)
+ * Author: Megaplan, mborisv <bm@megaplan.ru>
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['ua'] = {
+  "__locale": "Ukrainian (ua)",
+  "__author": "Megaplan, mborisv <bm@megaplan.ru>",
+  "add_rule": "Додати",
+  "add_group": "Додати групу",
+  "delete_rule": "Видалити",
+  "delete_group": "Видалити",
+  "conditions": {
+    "AND": "І",
+    "OR": "АБО"
+  },
+  "operators": {
+    "equal": "дорівнює",
+    "not_equal": "не дорівнює",
+    "in": "з вказаних",
+    "not_in": "не з вказаних",
+    "less": "менше",
+    "less_or_equal": "менше або дорівнюж",
+    "greater": "більше",
+    "greater_or_equal": "більше або дорівнює",
+    "between": "між",
+    "begins_with": "починається з",
+    "not_begins_with": "не починається з",
+    "contains": "містить",
+    "not_contains": "не містить",
+    "ends_with": "закінчується на",
+    "not_ends_with": "не не закінчується на",
+    "is_empty": "порожній рядок",
+    "is_not_empty": "не порожній рядок",
+    "is_null": "порожньо",
+    "is_not_null": "не порожньо"
+  },
+  "errors": {
+    "no_filter": "Фільтр не вибраний",
+    "empty_group": "Група порожня",
+    "radio_empty": "Значення не вибрано",
+    "checkbox_empty": "Значення не вибрано",
+    "select_empty": "Значення не вибрано",
+    "string_empty": "Не заповнено",
+    "string_exceed_min_length": "Повинен містити більше {0} символів",
+    "string_exceed_max_length": "Повинен містити менше {0} символів",
+    "string_invalid_format": "Невірний формат ({0})",
+    "number_nan": "Не число",
+    "number_not_integer": "Не число",
+    "number_not_double": "Не число",
+    "number_exceed_min": "Повинне бути більше {0}",
+    "number_exceed_max": "Повинне бути менше, ніж {0}",
+    "number_wrong_step": "Повинне бути кратне {0}",
+    "datetime_empty": "Не заповнено",
+    "datetime_invalid": "Невірний формат дати ({0})",
+    "datetime_exceed_min": "Повинне бути, після {0}",
+    "datetime_exceed_max": "Повинне бути, до {0}",
+    "boolean_not_valid": "Не логічне",
+    "operator_not_multiple": "Оператор \"{1}\" не підтримує багато значень"
+  },
+  "invert": "інвертувати"
+};
+
+QueryBuilder.defaults({ lang_code: 'ua' });
+}));
\ No newline at end of file
diff --git a/assets/i18n/query-builder.zh-CN.js b/assets/i18n/query-builder.zh-CN.js
new file mode 100644
index 00000000..a7615251
--- /dev/null
+++ b/assets/i18n/query-builder.zh-CN.js
@@ -0,0 +1,80 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: Simplified Chinese (zh_CN)
+ * Author: shadowwind, shatteredwindgo@gmail.com
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'query-builder'], factory);
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function($) {
+"use strict";
+
+var QueryBuilder = $.fn.queryBuilder;
+
+QueryBuilder.regional['zh-CN'] = {
+  "__locale": "Simplified Chinese (zh_CN)",
+  "__author": "shadowwind, shatteredwindgo@gmail.com",
+  "add_rule": "添加规则",
+  "add_group": "添加组",
+  "delete_rule": "删除",
+  "delete_group": "删除组",
+  "conditions": {
+    "AND": "和",
+    "OR": "或"
+  },
+  "operators": {
+    "equal": "等于",
+    "not_equal": "不等于",
+    "in": "在...之內",
+    "not_in": "不在...之內",
+    "less": "小于",
+    "less_or_equal": "小于或等于",
+    "greater": "大于",
+    "greater_or_equal": "大于或等于",
+    "between": "在...之间",
+    "not_between": "不在...之间",
+    "begins_with": "以...开始",
+    "not_begins_with": "不以...开始",
+    "contains": "包含以下内容",
+    "not_contains": "不包含以下内容",
+    "ends_with": "以...结束",
+    "not_ends_with": "不以...结束",
+    "is_empty": "为空",
+    "is_not_empty": "不为空",
+    "is_null": "为 null",
+    "is_not_null": "不为 null"
+  },
+  "errors": {
+    "no_filter": "没有选择过滤器",
+    "empty_group": "该组为空",
+    "radio_empty": "没有选中项",
+    "checkbox_empty": "没有选中项",
+    "select_empty": "没有选中项",
+    "string_empty": "没有输入值",
+    "string_exceed_min_length": "必须至少包含{0}个字符",
+    "string_exceed_max_length": "必须不超过{0}个字符",
+    "string_invalid_format": "无效格式({0})",
+    "number_nan": "值不是数字",
+    "number_not_integer": "不是整数",
+    "number_not_double": "不是浮点数",
+    "number_exceed_min": "必须大于{0}",
+    "number_exceed_max": "必须小于{0}",
+    "number_wrong_step": "必须是{0}的倍数",
+    "datetime_empty": "值为空",
+    "datetime_invalid": "不是有效日期({0})",
+    "datetime_exceed_min": "必须在{0}之后",
+    "datetime_exceed_max": "必须在{0}之前",
+    "boolean_not_valid": "不是布尔值",
+    "operator_not_multiple": "选项\"{1}\"无法接受多个值"
+  },
+  "invert": "倒置"
+};
+
+QueryBuilder.defaults({ lang_code: 'zh-CN' });
+}));
\ No newline at end of file
diff --git a/assets/js/query-builder.js b/assets/js/query-builder.js
new file mode 100644
index 00000000..7c1253e0
--- /dev/null
+++ b/assets/js/query-builder.js
@@ -0,0 +1,6200 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Copyright 2014-2018 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define(['jquery', 'dot/doT', 'jquery-extendext'], factory);
+    }
+    else if (typeof module === 'object' && module.exports) {
+        module.exports = factory(require('jquery'), require('dot/doT'), require('jquery-extendext'));
+    }
+    else {
+        factory(root.jQuery, root.doT);
+    }
+}(this, function($, doT) {
+"use strict";
+
+/**
+ * @typedef {object} Filter
+ * @memberof QueryBuilder
+ * @description See {@link http://querybuilder.js.org/index.html#filters}
+ */
+
+/**
+ * @typedef {object} Operator
+ * @memberof QueryBuilder
+ * @description See {@link http://querybuilder.js.org/index.html#operators}
+ */
+
+/**
+ * @param {jQuery} $el
+ * @param {object} options - see {@link http://querybuilder.js.org/#options}
+ * @constructor
+ */
+var QueryBuilder = function($el, options) {
+    $el[0].queryBuilder = this;
+
+    /**
+     * Element container
+     * @member {jQuery}
+     * @readonly
+     */
+    this.$el = $el;
+
+    /**
+     * Configuration object
+     * @member {object}
+     * @readonly
+     */
+    this.settings = $.extendext(true, 'replace', {}, QueryBuilder.DEFAULTS, options);
+
+    /**
+     * Internal model
+     * @member {Model}
+     * @readonly
+     */
+    this.model = new Model();
+
+    /**
+     * Internal status
+     * @member {object}
+     * @property {string} id - id of the container
+     * @property {boolean} generated_id - if the container id has been generated
+     * @property {int} group_id - current group id
+     * @property {int} rule_id - current rule id
+     * @property {boolean} has_optgroup - if filters have optgroups
+     * @property {boolean} has_operator_optgroup - if operators have optgroups
+     * @readonly
+     * @private
+     */
+    this.status = {
+        id: null,
+        generated_id: false,
+        group_id: 0,
+        rule_id: 0,
+        has_optgroup: false,
+        has_operator_optgroup: false
+    };
+
+    /**
+     * List of filters
+     * @member {QueryBuilder.Filter[]}
+     * @readonly
+     */
+    this.filters = this.settings.filters;
+
+    /**
+     * List of icons
+     * @member {object.<string, string>}
+     * @readonly
+     */
+    this.icons = this.settings.icons;
+
+    /**
+     * List of operators
+     * @member {QueryBuilder.Operator[]}
+     * @readonly
+     */
+    this.operators = this.settings.operators;
+
+    /**
+     * List of templates
+     * @member {object.<string, function>}
+     * @readonly
+     */
+    this.templates = this.settings.templates;
+
+    /**
+     * Plugins configuration
+     * @member {object.<string, object>}
+     * @readonly
+     */
+    this.plugins = this.settings.plugins;
+
+    /**
+     * Translations object
+     * @member {object}
+     * @readonly
+     */
+    this.lang = null;
+
+    // translations : english << 'lang_code' << custom
+    if (QueryBuilder.regional['en'] === undefined) {
+        Utils.error('Config', '"i18n/en.js" not loaded.');
+    }
+    this.lang = $.extendext(true, 'replace', {}, QueryBuilder.regional['en'], QueryBuilder.regional[this.settings.lang_code], this.settings.lang);
+
+    // "allow_groups" can be boolean or int
+    if (this.settings.allow_groups === false) {
+        this.settings.allow_groups = 0;
+    }
+    else if (this.settings.allow_groups === true) {
+        this.settings.allow_groups = -1;
+    }
+
+    // init templates
+    Object.keys(this.templates).forEach(function(tpl) {
+        if (!this.templates[tpl]) {
+            this.templates[tpl] = QueryBuilder.templates[tpl];
+        }
+        if (typeof this.templates[tpl] == 'string') {
+            this.templates[tpl] = doT.template(this.templates[tpl]);
+        }
+    }, this);
+
+    // ensure we have a container id
+    if (!this.$el.attr('id')) {
+        this.$el.attr('id', 'qb_' + Math.floor(Math.random() * 99999));
+        this.status.generated_id = true;
+    }
+    this.status.id = this.$el.attr('id');
+
+    // INIT
+    this.$el.addClass('query-builder form-inline');
+
+    this.filters = this.checkFilters(this.filters);
+    this.operators = this.checkOperators(this.operators);
+    this.bindEvents();
+    this.initPlugins();
+};
+
+$.extend(QueryBuilder.prototype, /** @lends QueryBuilder.prototype */ {
+    /**
+     * Triggers an event on the builder container
+     * @param {string} type
+     * @returns {$.Event}
+     */
+    trigger: function(type) {
+        var event = new $.Event(this._tojQueryEvent(type), {
+            builder: this
+        });
+
+        this.$el.triggerHandler(event, Array.prototype.slice.call(arguments, 1));
+
+        return event;
+    },
+
+    /**
+     * Triggers an event on the builder container and returns the modified value
+     * @param {string} type
+     * @param {*} value
+     * @returns {*}
+     */
+    change: function(type, value) {
+        var event = new $.Event(this._tojQueryEvent(type, true), {
+            builder: this,
+            value: value
+        });
+
+        this.$el.triggerHandler(event, Array.prototype.slice.call(arguments, 2));
+
+        return event.value;
+    },
+
+    /**
+     * Attaches an event listener on the builder container
+     * @param {string} type
+     * @param {function} cb
+     * @returns {QueryBuilder}
+     */
+    on: function(type, cb) {
+        this.$el.on(this._tojQueryEvent(type), cb);
+        return this;
+    },
+
+    /**
+     * Removes an event listener from the builder container
+     * @param {string} type
+     * @param {function} [cb]
+     * @returns {QueryBuilder}
+     */
+    off: function(type, cb) {
+        this.$el.off(this._tojQueryEvent(type), cb);
+        return this;
+    },
+
+    /**
+     * Attaches an event listener called once on the builder container
+     * @param {string} type
+     * @param {function} cb
+     * @returns {QueryBuilder}
+     */
+    once: function(type, cb) {
+        this.$el.one(this._tojQueryEvent(type), cb);
+        return this;
+    },
+
+    /**
+     * Appends `.queryBuilder` and optionally `.filter` to the events names
+     * @param {string} name
+     * @param {boolean} [filter=false]
+     * @returns {string}
+     * @private
+     */
+    _tojQueryEvent: function(name, filter) {
+        return name.split(' ').map(function(type) {
+            return type + '.queryBuilder' + (filter ? '.filter' : '');
+        }).join(' ');
+    }
+});
+
+
+/**
+ * Allowed types and their internal representation
+ * @type {object.<string, string>}
+ * @readonly
+ * @private
+ */
+QueryBuilder.types = {
+    'string':   'string',
+    'integer':  'number',
+    'double':   'number',
+    'date':     'datetime',
+    'time':     'datetime',
+    'datetime': 'datetime',
+    'boolean':  'boolean'
+};
+
+/**
+ * Allowed inputs
+ * @type {string[]}
+ * @readonly
+ * @private
+ */
+QueryBuilder.inputs = [
+    'text',
+    'number',
+    'textarea',
+    'radio',
+    'checkbox',
+    'select'
+];
+
+/**
+ * Runtime modifiable options with `setOptions` method
+ * @type {string[]}
+ * @readonly
+ * @private
+ */
+QueryBuilder.modifiable_options = [
+    'display_errors',
+    'allow_groups',
+    'allow_empty',
+    'default_condition',
+    'default_filter'
+];
+
+/**
+ * CSS selectors for common components
+ * @type {object.<string, string>}
+ * @readonly
+ */
+QueryBuilder.selectors = {
+    group_container:      '.rules-group-container',
+    rule_container:       '.rule-container',
+    filter_container:     '.rule-filter-container',
+    operator_container:   '.rule-operator-container',
+    value_container:      '.rule-value-container',
+    error_container:      '.error-container',
+    condition_container:  '.rules-group-header .group-conditions',
+
+    rule_header:          '.rule-header',
+    group_header:         '.rules-group-header',
+    group_actions:        '.group-actions',
+    rule_actions:         '.rule-actions',
+
+    rules_list:           '.rules-group-body>.rules-list',
+
+    group_condition:      '.rules-group-header [name$=_cond]',
+    rule_filter:          '.rule-filter-container [name$=_filter]',
+    rule_operator:        '.rule-operator-container [name$=_operator]',
+    rule_value:           '.rule-value-container [name*=_value_]',
+
+    add_rule:             '[data-add=rule]',
+    delete_rule:          '[data-delete=rule]',
+    add_group:            '[data-add=group]',
+    delete_group:         '[data-delete=group]'
+};
+
+/**
+ * Template strings (see template.js)
+ * @type {object.<string, string>}
+ * @readonly
+ */
+QueryBuilder.templates = {};
+
+/**
+ * Localized strings (see i18n/)
+ * @type {object.<string, object>}
+ * @readonly
+ */
+QueryBuilder.regional = {};
+
+/**
+ * Default operators
+ * @type {object.<string, object>}
+ * @readonly
+ */
+QueryBuilder.OPERATORS = {
+    equal:            { type: 'equal',            nb_inputs: 1, multiple: false, apply_to: ['string', 'number', 'datetime', 'boolean'] },
+    not_equal:        { type: 'not_equal',        nb_inputs: 1, multiple: false, apply_to: ['string', 'number', 'datetime', 'boolean'] },
+    in:               { type: 'in',               nb_inputs: 1, multiple: true,  apply_to: ['string', 'number', 'datetime'] },
+    not_in:           { type: 'not_in',           nb_inputs: 1, multiple: true,  apply_to: ['string', 'number', 'datetime'] },
+    less:             { type: 'less',             nb_inputs: 1, multiple: false, apply_to: ['number', 'datetime'] },
+    less_or_equal:    { type: 'less_or_equal',    nb_inputs: 1, multiple: false, apply_to: ['number', 'datetime'] },
+    greater:          { type: 'greater',          nb_inputs: 1, multiple: false, apply_to: ['number', 'datetime'] },
+    greater_or_equal: { type: 'greater_or_equal', nb_inputs: 1, multiple: false, apply_to: ['number', 'datetime'] },
+    between:          { type: 'between',          nb_inputs: 2, multiple: false, apply_to: ['number', 'datetime'] },
+    not_between:      { type: 'not_between',      nb_inputs: 2, multiple: false, apply_to: ['number', 'datetime'] },
+    begins_with:      { type: 'begins_with',      nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    not_begins_with:  { type: 'not_begins_with',  nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    contains:         { type: 'contains',         nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    not_contains:     { type: 'not_contains',     nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    ends_with:        { type: 'ends_with',        nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    not_ends_with:    { type: 'not_ends_with',    nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    is_empty:         { type: 'is_empty',         nb_inputs: 0, multiple: false, apply_to: ['string'] },
+    is_not_empty:     { type: 'is_not_empty',     nb_inputs: 0, multiple: false, apply_to: ['string'] },
+    is_null:          { type: 'is_null',          nb_inputs: 0, multiple: false, apply_to: ['string', 'number', 'datetime', 'boolean'] },
+    is_not_null:      { type: 'is_not_null',      nb_inputs: 0, multiple: false, apply_to: ['string', 'number', 'datetime', 'boolean'] }
+};
+
+/**
+ * Default configuration
+ * @type {object}
+ * @readonly
+ */
+QueryBuilder.DEFAULTS = {
+    filters: [],
+    plugins: [],
+
+    sort_filters: false,
+    display_errors: true,
+    allow_groups: -1,
+    allow_empty: false,
+    conditions: ['AND', 'OR'],
+    default_condition: 'AND',
+    inputs_separator: ' , ',
+    select_placeholder: '------',
+    display_empty_filter: true,
+    default_filter: null,
+    optgroups: {},
+
+    default_rule_flags: {
+        filter_readonly: false,
+        operator_readonly: false,
+        value_readonly: false,
+        no_delete: false
+    },
+
+    default_group_flags: {
+        condition_readonly: false,
+        no_add_rule: false,
+        no_add_group: false,
+        no_delete: false
+    },
+
+    templates: {
+        group: null,
+        rule: null,
+        filterSelect: null,
+        operatorSelect: null,
+        ruleValueSelect: null
+    },
+
+    lang_code: 'en',
+    lang: {},
+
+    operators: [
+        'equal',
+        'not_equal',
+        'in',
+        'not_in',
+        'less',
+        'less_or_equal',
+        'greater',
+        'greater_or_equal',
+        'between',
+        'not_between',
+        'begins_with',
+        'not_begins_with',
+        'contains',
+        'not_contains',
+        'ends_with',
+        'not_ends_with',
+        'is_empty',
+        'is_not_empty',
+        'is_null',
+        'is_not_null'
+    ],
+
+    icons: {
+        add_group:    'glyphicon glyphicon-plus-sign',
+        add_rule:     'glyphicon glyphicon-plus',
+        remove_group: 'glyphicon glyphicon-remove',
+        remove_rule:  'glyphicon glyphicon-remove',
+        error:        'glyphicon glyphicon-warning-sign'
+    }
+};
+
+
+/**
+ * @module plugins
+ */
+
+/**
+ * Definition of available plugins
+ * @type {object.<String, object>}
+ */
+QueryBuilder.plugins = {};
+
+/**
+ * Gets or extends the default configuration
+ * @param {object} [options] - new configuration
+ * @returns {undefined|object} nothing or configuration object (copy)
+ */
+QueryBuilder.defaults = function(options) {
+    if (typeof options == 'object') {
+        $.extendext(true, 'replace', QueryBuilder.DEFAULTS, options);
+    }
+    else if (typeof options == 'string') {
+        if (typeof QueryBuilder.DEFAULTS[options] == 'object') {
+            return $.extend(true, {}, QueryBuilder.DEFAULTS[options]);
+        }
+        else {
+            return QueryBuilder.DEFAULTS[options];
+        }
+    }
+    else {
+        return $.extend(true, {}, QueryBuilder.DEFAULTS);
+    }
+};
+
+/**
+ * Registers a new plugin
+ * @param {string} name
+ * @param {function} fct - init function
+ * @param {object} [def] - default options
+ */
+QueryBuilder.define = function(name, fct, def) {
+    QueryBuilder.plugins[name] = {
+        fct: fct,
+        def: def || {}
+    };
+};
+
+/**
+ * Adds new methods to QueryBuilder prototype
+ * @param {object.<string, function>} methods
+ */
+QueryBuilder.extend = function(methods) {
+    $.extend(QueryBuilder.prototype, methods);
+};
+
+/**
+ * Initializes plugins for an instance
+ * @throws ConfigError
+ * @private
+ */
+QueryBuilder.prototype.initPlugins = function() {
+    if (!this.plugins) {
+        return;
+    }
+
+    if ($.isArray(this.plugins)) {
+        var tmp = {};
+        this.plugins.forEach(function(plugin) {
+            tmp[plugin] = null;
+        });
+        this.plugins = tmp;
+    }
+
+    Object.keys(this.plugins).forEach(function(plugin) {
+        if (plugin in QueryBuilder.plugins) {
+            this.plugins[plugin] = $.extend(true, {},
+                QueryBuilder.plugins[plugin].def,
+                this.plugins[plugin] || {}
+            );
+
+            QueryBuilder.plugins[plugin].fct.call(this, this.plugins[plugin]);
+        }
+        else {
+            Utils.error('Config', 'Unable to find plugin "{0}"', plugin);
+        }
+    }, this);
+};
+
+/**
+ * Returns the config of a plugin, if the plugin is not loaded, returns the default config.
+ * @param {string} name
+ * @param {string} [property]
+ * @throws ConfigError
+ * @returns {*}
+ */
+QueryBuilder.prototype.getPluginOptions = function(name, property) {
+    var plugin;
+    if (this.plugins && this.plugins[name]) {
+        plugin = this.plugins[name];
+    }
+    else if (QueryBuilder.plugins[name]) {
+        plugin = QueryBuilder.plugins[name].def;
+    }
+
+    if (plugin) {
+        if (property) {
+            return plugin[property];
+        }
+        else {
+            return plugin;
+        }
+    }
+    else {
+        Utils.error('Config', 'Unable to find plugin "{0}"', name);
+    }
+};
+
+
+/**
+ * Final initialisation of the builder
+ * @param {object} [rules]
+ * @fires QueryBuilder.afterInit
+ * @private
+ */
+QueryBuilder.prototype.init = function(rules) {
+    /**
+     * When the initilization is done, just before creating the root group
+     * @event afterInit
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterInit');
+
+    if (rules) {
+        this.setRules(rules);
+        delete this.settings.rules;
+    }
+    else {
+        this.setRoot(true);
+    }
+};
+
+/**
+ * Checks the configuration of each filter
+ * @param {QueryBuilder.Filter[]} filters
+ * @returns {QueryBuilder.Filter[]}
+ * @throws ConfigError
+ */
+QueryBuilder.prototype.checkFilters = function(filters) {
+    var definedFilters = [];
+
+    if (!filters || filters.length === 0) {
+        Utils.error('Config', 'Missing filters list');
+    }
+
+    filters.forEach(function(filter, i) {
+        if (!filter.id) {
+            Utils.error('Config', 'Missing filter {0} id', i);
+        }
+        if (definedFilters.indexOf(filter.id) != -1) {
+            Utils.error('Config', 'Filter "{0}" already defined', filter.id);
+        }
+        definedFilters.push(filter.id);
+
+        if (!filter.type) {
+            filter.type = 'string';
+        }
+        else if (!QueryBuilder.types[filter.type]) {
+            Utils.error('Config', 'Invalid type "{0}"', filter.type);
+        }
+
+        if (!filter.input) {
+            filter.input = QueryBuilder.types[filter.type] === 'number' ? 'number' : 'text';
+        }
+        else if (typeof filter.input != 'function' && QueryBuilder.inputs.indexOf(filter.input) == -1) {
+            Utils.error('Config', 'Invalid input "{0}"', filter.input);
+        }
+
+        if (filter.operators) {
+            filter.operators.forEach(function(operator) {
+                if (typeof operator != 'string') {
+                    Utils.error('Config', 'Filter operators must be global operators types (string)');
+                }
+            });
+        }
+
+        if (!filter.field) {
+            filter.field = filter.id;
+        }
+        if (!filter.label) {
+            filter.label = filter.field;
+        }
+
+        if (!filter.optgroup) {
+            filter.optgroup = null;
+        }
+        else {
+            this.status.has_optgroup = true;
+
+            // register optgroup if needed
+            if (!this.settings.optgroups[filter.optgroup]) {
+                this.settings.optgroups[filter.optgroup] = filter.optgroup;
+            }
+        }
+
+        switch (filter.input) {
+            case 'radio':
+            case 'checkbox':
+                if (!filter.values || filter.values.length < 1) {
+                    Utils.error('Config', 'Missing filter "{0}" values', filter.id);
+                }
+                break;
+
+            case 'select':
+                var cleanValues = [];
+                filter.has_optgroup = false;
+
+                Utils.iterateOptions(filter.values, function(value, label, optgroup) {
+                    cleanValues.push({
+                        value: value,
+                        label: label,
+                        optgroup: optgroup || null
+                    });
+
+                    if (optgroup) {
+                        filter.has_optgroup = true;
+
+                        // register optgroup if needed
+                        if (!this.settings.optgroups[optgroup]) {
+                            this.settings.optgroups[optgroup] = optgroup;
+                        }
+                    }
+                }.bind(this));
+
+                if (filter.has_optgroup) {
+                    filter.values = Utils.groupSort(cleanValues, 'optgroup');
+                }
+                else {
+                    filter.values = cleanValues;
+                }
+
+                if (filter.placeholder) {
+                    if (filter.placeholder_value === undefined) {
+                        filter.placeholder_value = -1;
+                    }
+
+                    filter.values.forEach(function(entry) {
+                        if (entry.value == filter.placeholder_value) {
+                            Utils.error('Config', 'Placeholder of filter "{0}" overlaps with one of its values', filter.id);
+                        }
+                    });
+                }
+                break;
+        }
+    }, this);
+
+    if (this.settings.sort_filters) {
+        if (typeof this.settings.sort_filters == 'function') {
+            filters.sort(this.settings.sort_filters);
+        }
+        else {
+            var self = this;
+            filters.sort(function(a, b) {
+                return self.translate(a.label).localeCompare(self.translate(b.label));
+            });
+        }
+    }
+
+    if (this.status.has_optgroup) {
+        filters = Utils.groupSort(filters, 'optgroup');
+    }
+
+    return filters;
+};
+
+/**
+ * Checks the configuration of each operator
+ * @param {QueryBuilder.Operator[]} operators
+ * @returns {QueryBuilder.Operator[]}
+ * @throws ConfigError
+ */
+QueryBuilder.prototype.checkOperators = function(operators) {
+    var definedOperators = [];
+
+    operators.forEach(function(operator, i) {
+        if (typeof operator == 'string') {
+            if (!QueryBuilder.OPERATORS[operator]) {
+                Utils.error('Config', 'Unknown operator "{0}"', operator);
+            }
+
+            operators[i] = operator = $.extendext(true, 'replace', {}, QueryBuilder.OPERATORS[operator]);
+        }
+        else {
+            if (!operator.type) {
+                Utils.error('Config', 'Missing "type" for operator {0}', i);
+            }
+
+            if (QueryBuilder.OPERATORS[operator.type]) {
+                operators[i] = operator = $.extendext(true, 'replace', {}, QueryBuilder.OPERATORS[operator.type], operator);
+            }
+
+            if (operator.nb_inputs === undefined || operator.apply_to === undefined) {
+                Utils.error('Config', 'Missing "nb_inputs" and/or "apply_to" for operator "{0}"', operator.type);
+            }
+        }
+
+        if (definedOperators.indexOf(operator.type) != -1) {
+            Utils.error('Config', 'Operator "{0}" already defined', operator.type);
+        }
+        definedOperators.push(operator.type);
+
+        if (!operator.optgroup) {
+            operator.optgroup = null;
+        }
+        else {
+            this.status.has_operator_optgroup = true;
+
+            // register optgroup if needed
+            if (!this.settings.optgroups[operator.optgroup]) {
+                this.settings.optgroups[operator.optgroup] = operator.optgroup;
+            }
+        }
+    }, this);
+
+    if (this.status.has_operator_optgroup) {
+        operators = Utils.groupSort(operators, 'optgroup');
+    }
+
+    return operators;
+};
+
+/**
+ * Adds all events listeners to the builder
+ * @private
+ */
+QueryBuilder.prototype.bindEvents = function() {
+    var self = this;
+    var Selectors = QueryBuilder.selectors;
+
+    // group condition change
+    this.$el.on('change.queryBuilder', Selectors.group_condition, function() {
+        if ($(this).is(':checked')) {
+            var $group = $(this).closest(Selectors.group_container);
+            self.getModel($group).condition = $(this).val();
+        }
+    });
+
+    // rule filter change
+    this.$el.on('change.queryBuilder', Selectors.rule_filter, function() {
+        var $rule = $(this).closest(Selectors.rule_container);
+        self.getModel($rule).filter = self.getFilterById($(this).val());
+    });
+
+    // rule operator change
+    this.$el.on('change.queryBuilder', Selectors.rule_operator, function() {
+        var $rule = $(this).closest(Selectors.rule_container);
+        self.getModel($rule).operator = self.getOperatorByType($(this).val());
+    });
+
+    // add rule button
+    this.$el.on('click.queryBuilder', Selectors.add_rule, function() {
+        var $group = $(this).closest(Selectors.group_container);
+        self.addRule(self.getModel($group));
+    });
+
+    // delete rule button
+    this.$el.on('click.queryBuilder', Selectors.delete_rule, function() {
+        var $rule = $(this).closest(Selectors.rule_container);
+        self.deleteRule(self.getModel($rule));
+    });
+
+    if (this.settings.allow_groups !== 0) {
+        // add group button
+        this.$el.on('click.queryBuilder', Selectors.add_group, function() {
+            var $group = $(this).closest(Selectors.group_container);
+            self.addGroup(self.getModel($group));
+        });
+
+        // delete group button
+        this.$el.on('click.queryBuilder', Selectors.delete_group, function() {
+            var $group = $(this).closest(Selectors.group_container);
+            self.deleteGroup(self.getModel($group));
+        });
+    }
+
+    // model events
+    this.model.on({
+        'drop': function(e, node) {
+            node.$el.remove();
+            self.refreshGroupsConditions();
+        },
+        'add': function(e, parent, node, index) {
+            if (index === 0) {
+                node.$el.prependTo(parent.$el.find('>' + QueryBuilder.selectors.rules_list));
+            }
+            else {
+                node.$el.insertAfter(parent.rules[index - 1].$el);
+            }
+            self.refreshGroupsConditions();
+        },
+        'move': function(e, node, group, index) {
+            node.$el.detach();
+
+            if (index === 0) {
+                node.$el.prependTo(group.$el.find('>' + QueryBuilder.selectors.rules_list));
+            }
+            else {
+                node.$el.insertAfter(group.rules[index - 1].$el);
+            }
+            self.refreshGroupsConditions();
+        },
+        'update': function(e, node, field, value, oldValue) {
+            if (node instanceof Rule) {
+                switch (field) {
+                    case 'error':
+                        self.updateError(node);
+                        break;
+
+                    case 'flags':
+                        self.applyRuleFlags(node);
+                        break;
+
+                    case 'filter':
+                        self.updateRuleFilter(node, oldValue);
+                        break;
+
+                    case 'operator':
+                        self.updateRuleOperator(node, oldValue);
+                        break;
+
+                    case 'value':
+                        self.updateRuleValue(node, oldValue);
+                        break;
+                }
+            }
+            else {
+                switch (field) {
+                    case 'error':
+                        self.updateError(node);
+                        break;
+
+                    case 'flags':
+                        self.applyGroupFlags(node);
+                        break;
+
+                    case 'condition':
+                        self.updateGroupCondition(node, oldValue);
+                        break;
+                }
+            }
+        }
+    });
+};
+
+/**
+ * Creates the root group
+ * @param {boolean} [addRule=true] - adds a default empty rule
+ * @param {object} [data] - group custom data
+ * @param {object} [flags] - flags to apply to the group
+ * @returns {Group} root group
+ * @fires QueryBuilder.afterAddGroup
+ */
+QueryBuilder.prototype.setRoot = function(addRule, data, flags) {
+    addRule = (addRule === undefined || addRule === true);
+
+    var group_id = this.nextGroupId();
+    var $group = $(this.getGroupTemplate(group_id, 1));
+
+    this.$el.append($group);
+    this.model.root = new Group(null, $group);
+    this.model.root.model = this.model;
+
+    this.model.root.data = data;
+    this.model.root.flags = $.extend({}, this.settings.default_group_flags, flags);
+    this.model.root.condition = this.settings.default_condition;
+
+    this.trigger('afterAddGroup', this.model.root);
+
+    if (addRule) {
+        this.addRule(this.model.root);
+    }
+
+    return this.model.root;
+};
+
+/**
+ * Adds a new group
+ * @param {Group} parent
+ * @param {boolean} [addRule=true] - adds a default empty rule
+ * @param {object} [data] - group custom data
+ * @param {object} [flags] - flags to apply to the group
+ * @returns {Group}
+ * @fires QueryBuilder.beforeAddGroup
+ * @fires QueryBuilder.afterAddGroup
+ */
+QueryBuilder.prototype.addGroup = function(parent, addRule, data, flags) {
+    addRule = (addRule === undefined || addRule === true);
+
+    var level = parent.level + 1;
+
+    /**
+     * Just before adding a group, can be prevented.
+     * @event beforeAddGroup
+     * @memberof QueryBuilder
+     * @param {Group} parent
+     * @param {boolean} addRule - if an empty rule will be added in the group
+     * @param {int} level - nesting level of the group, 1 is the root group
+     */
+    var e = this.trigger('beforeAddGroup', parent, addRule, level);
+    if (e.isDefaultPrevented()) {
+        return null;
+    }
+
+    var group_id = this.nextGroupId();
+    var $group = $(this.getGroupTemplate(group_id, level));
+    var model = parent.addGroup($group);
+
+    model.data = data;
+    model.flags = $.extend({}, this.settings.default_group_flags, flags);
+    model.condition = this.settings.default_condition;
+
+    /**
+     * Just after adding a group
+     * @event afterAddGroup
+     * @memberof QueryBuilder
+     * @param {Group} group
+     */
+    this.trigger('afterAddGroup', model);
+
+    /**
+     * After any change in the rules
+     * @event rulesChanged
+     * @memberof QueryBuilder
+     */
+    this.trigger('rulesChanged');
+
+    if (addRule) {
+        this.addRule(model);
+    }
+
+    return model;
+};
+
+/**
+ * Tries to delete a group. The group is not deleted if at least one rule is flagged `no_delete`.
+ * @param {Group} group
+ * @returns {boolean} if the group has been deleted
+ * @fires QueryBuilder.beforeDeleteGroup
+ * @fires QueryBuilder.afterDeleteGroup
+ */
+QueryBuilder.prototype.deleteGroup = function(group) {
+    if (group.isRoot()) {
+        return false;
+    }
+
+    /**
+     * Just before deleting a group, can be prevented
+     * @event beforeDeleteGroup
+     * @memberof QueryBuilder
+     * @param {Group} parent
+     */
+    var e = this.trigger('beforeDeleteGroup', group);
+    if (e.isDefaultPrevented()) {
+        return false;
+    }
+
+    var del = true;
+
+    group.each('reverse', function(rule) {
+        del &= this.deleteRule(rule);
+    }, function(group) {
+        del &= this.deleteGroup(group);
+    }, this);
+
+    if (del) {
+        group.drop();
+
+        /**
+         * Just after deleting a group
+         * @event afterDeleteGroup
+         * @memberof QueryBuilder
+         */
+        this.trigger('afterDeleteGroup');
+
+        this.trigger('rulesChanged');
+    }
+
+    return del;
+};
+
+/**
+ * Performs actions when a group's condition changes
+ * @param {Group} group
+ * @param {object} previousCondition
+ * @fires QueryBuilder.afterUpdateGroupCondition
+ * @private
+ */
+QueryBuilder.prototype.updateGroupCondition = function(group, previousCondition) {
+    group.$el.find('>' + QueryBuilder.selectors.group_condition).each(function() {
+        var $this = $(this);
+        $this.prop('checked', $this.val() === group.condition);
+        $this.parent().toggleClass('active', $this.val() === group.condition);
+    });
+
+    /**
+     * After the group condition has been modified
+     * @event afterUpdateGroupCondition
+     * @memberof QueryBuilder
+     * @param {Group} group
+     * @param {object} previousCondition
+     */
+    this.trigger('afterUpdateGroupCondition', group, previousCondition);
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Updates the visibility of conditions based on number of rules inside each group
+ * @private
+ */
+QueryBuilder.prototype.refreshGroupsConditions = function() {
+    (function walk(group) {
+        if (!group.flags || (group.flags && !group.flags.condition_readonly)) {
+            group.$el.find('>' + QueryBuilder.selectors.group_condition).prop('disabled', group.rules.length <= 1)
+                .parent().toggleClass('disabled', group.rules.length <= 1);
+        }
+
+        group.each(null, function(group) {
+            walk(group);
+        }, this);
+    }(this.model.root));
+};
+
+/**
+ * Adds a new rule
+ * @param {Group} parent
+ * @param {object} [data] - rule custom data
+ * @param {object} [flags] - flags to apply to the rule
+ * @returns {Rule}
+ * @fires QueryBuilder.beforeAddRule
+ * @fires QueryBuilder.afterAddRule
+ * @fires QueryBuilder.changer:getDefaultFilter
+ */
+QueryBuilder.prototype.addRule = function(parent, data, flags) {
+    /**
+     * Just before adding a rule, can be prevented
+     * @event beforeAddRule
+     * @memberof QueryBuilder
+     * @param {Group} parent
+     */
+    var e = this.trigger('beforeAddRule', parent);
+    if (e.isDefaultPrevented()) {
+        return null;
+    }
+
+    var rule_id = this.nextRuleId();
+    var $rule = $(this.getRuleTemplate(rule_id));
+    var model = parent.addRule($rule);
+
+    model.data = data;
+    model.flags = $.extend({}, this.settings.default_rule_flags, flags);
+
+    /**
+     * Just after adding a rule
+     * @event afterAddRule
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    this.trigger('afterAddRule', model);
+
+    this.trigger('rulesChanged');
+
+    this.createRuleFilters(model);
+
+    if (this.settings.default_filter || !this.settings.display_empty_filter) {
+        /**
+         * Modifies the default filter for a rule
+         * @event changer:getDefaultFilter
+         * @memberof QueryBuilder
+         * @param {QueryBuilder.Filter} filter
+         * @param {Rule} rule
+         * @returns {QueryBuilder.Filter}
+         */
+        model.filter = this.change('getDefaultFilter',
+            this.getFilterById(this.settings.default_filter || this.filters[0].id),
+            model
+        );
+    }
+
+    return model;
+};
+
+/**
+ * Tries to delete a rule
+ * @param {Rule} rule
+ * @returns {boolean} if the rule has been deleted
+ * @fires QueryBuilder.beforeDeleteRule
+ * @fires QueryBuilder.afterDeleteRule
+ */
+QueryBuilder.prototype.deleteRule = function(rule) {
+    if (rule.flags.no_delete) {
+        return false;
+    }
+
+    /**
+     * Just before deleting a rule, can be prevented
+     * @event beforeDeleteRule
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    var e = this.trigger('beforeDeleteRule', rule);
+    if (e.isDefaultPrevented()) {
+        return false;
+    }
+
+    rule.drop();
+
+    /**
+     * Just after deleting a rule
+     * @event afterDeleteRule
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterDeleteRule');
+
+    this.trigger('rulesChanged');
+
+    return true;
+};
+
+/**
+ * Creates the filters for a rule
+ * @param {Rule} rule
+ * @fires QueryBuilder.changer:getRuleFilters
+ * @fires QueryBuilder.afterCreateRuleFilters
+ * @private
+ */
+QueryBuilder.prototype.createRuleFilters = function(rule) {
+    /**
+     * Modifies the list a filters available for a rule
+     * @event changer:getRuleFilters
+     * @memberof QueryBuilder
+     * @param {QueryBuilder.Filter[]} filters
+     * @param {Rule} rule
+     * @returns {QueryBuilder.Filter[]}
+     */
+    var filters = this.change('getRuleFilters', this.filters, rule);
+    var $filterSelect = $(this.getRuleFilterSelect(rule, filters));
+
+    rule.$el.find(QueryBuilder.selectors.filter_container).html($filterSelect);
+
+    /**
+     * After creating the dropdown for filters
+     * @event afterCreateRuleFilters
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    this.trigger('afterCreateRuleFilters', rule);
+
+    this.applyRuleFlags(rule);
+};
+
+/**
+ * Creates the operators for a rule and init the rule operator
+ * @param {Rule} rule
+ * @fires QueryBuilder.afterCreateRuleOperators
+ * @private
+ */
+QueryBuilder.prototype.createRuleOperators = function(rule) {
+    var $operatorContainer = rule.$el.find(QueryBuilder.selectors.operator_container).empty();
+
+    if (!rule.filter) {
+        return;
+    }
+
+    var operators = this.getOperators(rule.filter);
+    var $operatorSelect = $(this.getRuleOperatorSelect(rule, operators));
+
+    $operatorContainer.html($operatorSelect);
+
+    // set the operator without triggering update event
+    if (rule.filter.default_operator) {
+        rule.__.operator = this.getOperatorByType(rule.filter.default_operator);
+    }
+    else {
+        rule.__.operator = operators[0];
+    }
+
+    rule.$el.find(QueryBuilder.selectors.rule_operator).val(rule.operator.type);
+
+    /**
+     * After creating the dropdown for operators
+     * @event afterCreateRuleOperators
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     * @param {QueryBuilder.Operator[]} operators - allowed operators for this rule
+     */
+    this.trigger('afterCreateRuleOperators', rule, operators);
+
+    this.applyRuleFlags(rule);
+};
+
+/**
+ * Creates the main input for a rule
+ * @param {Rule} rule
+ * @fires QueryBuilder.afterCreateRuleInput
+ * @private
+ */
+QueryBuilder.prototype.createRuleInput = function(rule) {
+    var $valueContainer = rule.$el.find(QueryBuilder.selectors.value_container).empty();
+
+    rule.__.value = undefined;
+
+    if (!rule.filter || !rule.operator || rule.operator.nb_inputs === 0) {
+        return;
+    }
+
+    var self = this;
+    var $inputs = $();
+    var filter = rule.filter;
+
+    for (var i = 0; i < rule.operator.nb_inputs; i++) {
+        var $ruleInput = $(this.getRuleInput(rule, i));
+        if (i > 0) $valueContainer.append(this.settings.inputs_separator);
+        $valueContainer.append($ruleInput);
+        $inputs = $inputs.add($ruleInput);
+    }
+
+    $valueContainer.css('display', '');
+
+    $inputs.on('change ' + (filter.input_event || ''), function() {
+        if (!rule._updating_input) {
+            rule._updating_value = true;
+            rule.value = self.getRuleInputValue(rule);
+            rule._updating_value = false;
+        }
+    });
+
+    if (filter.plugin) {
+        $inputs[filter.plugin](filter.plugin_config || {});
+    }
+
+    /**
+     * After creating the input for a rule and initializing optional plugin
+     * @event afterCreateRuleInput
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    this.trigger('afterCreateRuleInput', rule);
+
+    if (filter.default_value !== undefined) {
+        rule.value = filter.default_value;
+    }
+    else {
+        rule._updating_value = true;
+        rule.value = self.getRuleInputValue(rule);
+        rule._updating_value = false;
+    }
+
+    this.applyRuleFlags(rule);
+};
+
+/**
+ * Performs action when a rule's filter changes
+ * @param {Rule} rule
+ * @param {object} previousFilter
+ * @fires QueryBuilder.afterUpdateRuleFilter
+ * @private
+ */
+QueryBuilder.prototype.updateRuleFilter = function(rule, previousFilter) {
+    this.createRuleOperators(rule);
+    this.createRuleInput(rule);
+
+    rule.$el.find(QueryBuilder.selectors.rule_filter).val(rule.filter ? rule.filter.id : '-1');
+
+    // clear rule data if the filter changed
+    if (previousFilter && rule.filter && previousFilter.id !== rule.filter.id) {
+        rule.data = undefined;
+    }
+
+    /**
+     * After the filter has been updated and the operators and input re-created
+     * @event afterUpdateRuleFilter
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     * @param {object} previousFilter
+     */
+    this.trigger('afterUpdateRuleFilter', rule, previousFilter);
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Performs actions when a rule's operator changes
+ * @param {Rule} rule
+ * @param {object} previousOperator
+ * @fires QueryBuilder.afterUpdateRuleOperator
+ * @private
+ */
+QueryBuilder.prototype.updateRuleOperator = function(rule, previousOperator) {
+    var $valueContainer = rule.$el.find(QueryBuilder.selectors.value_container);
+
+    if (!rule.operator || rule.operator.nb_inputs === 0) {
+        $valueContainer.hide();
+
+        rule.__.value = undefined;
+    }
+    else {
+        $valueContainer.css('display', '');
+
+        if ($valueContainer.is(':empty') || !previousOperator ||
+            rule.operator.nb_inputs !== previousOperator.nb_inputs ||
+            rule.operator.optgroup !== previousOperator.optgroup
+        ) {
+            this.createRuleInput(rule);
+        }
+    }
+
+    if (rule.operator) {
+        rule.$el.find(QueryBuilder.selectors.rule_operator).val(rule.operator.type);
+
+        // refresh value if the format changed for this operator
+        rule.__.value = this.getRuleInputValue(rule);
+    }
+
+    /**
+     *  After the operator has been updated and the input optionally re-created
+     * @event afterUpdateRuleOperator
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     * @param {object} previousOperator
+     */
+    this.trigger('afterUpdateRuleOperator', rule, previousOperator);
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Performs actions when rule's value changes
+ * @param {Rule} rule
+ * @param {object} previousValue
+ * @fires QueryBuilder.afterUpdateRuleValue
+ * @private
+ */
+QueryBuilder.prototype.updateRuleValue = function(rule, previousValue) {
+    if (!rule._updating_value) {
+        this.setRuleInputValue(rule, rule.value);
+    }
+
+    /**
+     * After the rule value has been modified
+     * @event afterUpdateRuleValue
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     * @param {*} previousValue
+     */
+    this.trigger('afterUpdateRuleValue', rule, previousValue);
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Changes a rule's properties depending on its flags
+ * @param {Rule} rule
+ * @fires QueryBuilder.afterApplyRuleFlags
+ * @private
+ */
+QueryBuilder.prototype.applyRuleFlags = function(rule) {
+    var flags = rule.flags;
+    var Selectors = QueryBuilder.selectors;
+
+    rule.$el.find(Selectors.rule_filter).prop('disabled', flags.filter_readonly);
+    rule.$el.find(Selectors.rule_operator).prop('disabled', flags.operator_readonly);
+    rule.$el.find(Selectors.rule_value).prop('disabled', flags.value_readonly);
+
+    if (flags.no_delete) {
+        rule.$el.find(Selectors.delete_rule).remove();
+    }
+
+    /**
+     * After rule's flags has been applied
+     * @event afterApplyRuleFlags
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    this.trigger('afterApplyRuleFlags', rule);
+};
+
+/**
+ * Changes group's properties depending on its flags
+ * @param {Group} group
+ * @fires QueryBuilder.afterApplyGroupFlags
+ * @private
+ */
+QueryBuilder.prototype.applyGroupFlags = function(group) {
+    var flags = group.flags;
+    var Selectors = QueryBuilder.selectors;
+
+    group.$el.find('>' + Selectors.group_condition).prop('disabled', flags.condition_readonly)
+        .parent().toggleClass('readonly', flags.condition_readonly);
+
+    if (flags.no_add_rule) {
+        group.$el.find(Selectors.add_rule).remove();
+    }
+    if (flags.no_add_group) {
+        group.$el.find(Selectors.add_group).remove();
+    }
+    if (flags.no_delete) {
+        group.$el.find(Selectors.delete_group).remove();
+    }
+
+    /**
+     * After group's flags has been applied
+     * @event afterApplyGroupFlags
+     * @memberof QueryBuilder
+     * @param {Group} group
+     */
+    this.trigger('afterApplyGroupFlags', group);
+};
+
+/**
+ * Clears all errors markers
+ * @param {Node} [node] default is root Group
+ */
+QueryBuilder.prototype.clearErrors = function(node) {
+    node = node || this.model.root;
+
+    if (!node) {
+        return;
+    }
+
+    node.error = null;
+
+    if (node instanceof Group) {
+        node.each(function(rule) {
+            rule.error = null;
+        }, function(group) {
+            this.clearErrors(group);
+        }, this);
+    }
+};
+
+/**
+ * Adds/Removes error on a Rule or Group
+ * @param {Node} node
+ * @fires QueryBuilder.changer:displayError
+ * @private
+ */
+QueryBuilder.prototype.updateError = function(node) {
+    if (this.settings.display_errors) {
+        if (node.error === null) {
+            node.$el.removeClass('has-error');
+        }
+        else {
+            var errorMessage = this.translate('errors', node.error[0]);
+            errorMessage = Utils.fmt(errorMessage, node.error.slice(1));
+
+            /**
+             * Modifies an error message before display
+             * @event changer:displayError
+             * @memberof QueryBuilder
+             * @param {string} errorMessage - the error message (translated and formatted)
+             * @param {array} error - the raw error array (error code and optional arguments)
+             * @param {Node} node
+             * @returns {string}
+             */
+            errorMessage = this.change('displayError', errorMessage, node.error, node);
+
+            node.$el.addClass('has-error')
+                .find(QueryBuilder.selectors.error_container).eq(0)
+                .attr('title', errorMessage);
+        }
+    }
+};
+
+/**
+ * Triggers a validation error event
+ * @param {Node} node
+ * @param {string|array} error
+ * @param {*} value
+ * @fires QueryBuilder.validationError
+ * @private
+ */
+QueryBuilder.prototype.triggerValidationError = function(node, error, value) {
+    if (!$.isArray(error)) {
+        error = [error];
+    }
+
+    /**
+     * Fired when a validation error occurred, can be prevented
+     * @event validationError
+     * @memberof QueryBuilder
+     * @param {Node} node
+     * @param {string} error
+     * @param {*} value
+     */
+    var e = this.trigger('validationError', node, error, value);
+    if (!e.isDefaultPrevented()) {
+        node.error = error;
+    }
+};
+
+
+/**
+ * Destroys the builder
+ * @fires QueryBuilder.beforeDestroy
+ */
+QueryBuilder.prototype.destroy = function() {
+    /**
+     * Before the {@link QueryBuilder#destroy} method
+     * @event beforeDestroy
+     * @memberof QueryBuilder
+     */
+    this.trigger('beforeDestroy');
+
+    if (this.status.generated_id) {
+        this.$el.removeAttr('id');
+    }
+
+    this.clear();
+    this.model = null;
+
+    this.$el
+        .off('.queryBuilder')
+        .removeClass('query-builder')
+        .removeData('queryBuilder');
+
+    delete this.$el[0].queryBuilder;
+};
+
+/**
+ * Clear all rules and resets the root group
+ * @fires QueryBuilder.beforeReset
+ * @fires QueryBuilder.afterReset
+ */
+QueryBuilder.prototype.reset = function() {
+    /**
+     * Before the {@link QueryBuilder#reset} method, can be prevented
+     * @event beforeReset
+     * @memberof QueryBuilder
+     */
+    var e = this.trigger('beforeReset');
+    if (e.isDefaultPrevented()) {
+        return;
+    }
+
+    this.status.group_id = 1;
+    this.status.rule_id = 0;
+
+    this.model.root.empty();
+
+    this.model.root.data = undefined;
+    this.model.root.flags = $.extend({}, this.settings.default_group_flags);
+    this.model.root.condition = this.settings.default_condition;
+
+    this.addRule(this.model.root);
+
+    /**
+     * After the {@link QueryBuilder#reset} method
+     * @event afterReset
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterReset');
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Clears all rules and removes the root group
+ * @fires QueryBuilder.beforeClear
+ * @fires QueryBuilder.afterClear
+ */
+QueryBuilder.prototype.clear = function() {
+    /**
+     * Before the {@link QueryBuilder#clear} method, can be prevented
+     * @event beforeClear
+     * @memberof QueryBuilder
+     */
+    var e = this.trigger('beforeClear');
+    if (e.isDefaultPrevented()) {
+        return;
+    }
+
+    this.status.group_id = 0;
+    this.status.rule_id = 0;
+
+    if (this.model.root) {
+        this.model.root.drop();
+        this.model.root = null;
+    }
+
+    /**
+     * After the {@link QueryBuilder#clear} method
+     * @event afterClear
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterClear');
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Modifies the builder configuration.<br>
+ * Only options defined in QueryBuilder.modifiable_options are modifiable
+ * @param {object} options
+ */
+QueryBuilder.prototype.setOptions = function(options) {
+    $.each(options, function(opt, value) {
+        if (QueryBuilder.modifiable_options.indexOf(opt) !== -1) {
+            this.settings[opt] = value;
+        }
+    }.bind(this));
+};
+
+/**
+ * Returns the model associated to a DOM object, or the root model
+ * @param {jQuery} [target]
+ * @returns {Node}
+ */
+QueryBuilder.prototype.getModel = function(target) {
+    if (!target) {
+        return this.model.root;
+    }
+    else if (target instanceof Node) {
+        return target;
+    }
+    else {
+        return $(target).data('queryBuilderModel');
+    }
+};
+
+/**
+ * Validates the whole builder
+ * @param {object} [options]
+ * @param {boolean} [options.skip_empty=false] - skips validating rules that have no filter selected
+ * @returns {boolean}
+ * @fires QueryBuilder.changer:validate
+ */
+QueryBuilder.prototype.validate = function(options) {
+    options = $.extend({
+        skip_empty: false
+    }, options);
+
+    this.clearErrors();
+
+    var self = this;
+
+    var valid = (function parse(group) {
+        var done = 0;
+        var errors = 0;
+
+        group.each(function(rule) {
+            if (!rule.filter && options.skip_empty) {
+                return;
+            }
+
+            if (!rule.filter) {
+                self.triggerValidationError(rule, 'no_filter', null);
+                errors++;
+                return;
+            }
+
+            if (!rule.operator) {
+                self.triggerValidationError(rule, 'no_operator', null);
+                errors++;
+                return;
+            }
+
+            if (rule.operator.nb_inputs !== 0) {
+                var valid = self.validateValue(rule, rule.value);
+
+                if (valid !== true) {
+                    self.triggerValidationError(rule, valid, rule.value);
+                    errors++;
+                    return;
+                }
+            }
+
+            done++;
+
+        }, function(group) {
+            var res = parse(group);
+            if (res === true) {
+                done++;
+            }
+            else if (res === false) {
+                errors++;
+            }
+        });
+
+        if (errors > 0) {
+            return false;
+        }
+        else if (done === 0 && !group.isRoot() && options.skip_empty) {
+            return null;
+        }
+        else if (done === 0 && (!self.settings.allow_empty || !group.isRoot())) {
+            self.triggerValidationError(group, 'empty_group', null);
+            return false;
+        }
+
+        return true;
+
+    }(this.model.root));
+
+    /**
+     * Modifies the result of the {@link QueryBuilder#validate} method
+     * @event changer:validate
+     * @memberof QueryBuilder
+     * @param {boolean} valid
+     * @returns {boolean}
+     */
+    return this.change('validate', valid);
+};
+
+/**
+ * Gets an object representing current rules
+ * @param {object} [options]
+ * @param {boolean|string} [options.get_flags=false] - export flags, true: only changes from default flags or 'all'
+ * @param {boolean} [options.allow_invalid=false] - returns rules even if they are invalid
+ * @param {boolean} [options.skip_empty=false] - remove rules that have no filter selected
+ * @returns {object}
+ * @fires QueryBuilder.changer:ruleToJson
+ * @fires QueryBuilder.changer:groupToJson
+ * @fires QueryBuilder.changer:getRules
+ */
+QueryBuilder.prototype.getRules = function(options) {
+    options = $.extend({
+        get_flags: false,
+        allow_invalid: false,
+        skip_empty: false
+    }, options);
+
+    var valid = this.validate(options);
+    if (!valid && !options.allow_invalid) {
+        return null;
+    }
+
+    var self = this;
+
+    var out = (function parse(group) {
+        var groupData = {
+            condition: group.condition,
+            rules: []
+        };
+
+        if (group.data) {
+            groupData.data = $.extendext(true, 'replace', {}, group.data);
+        }
+
+        if (options.get_flags) {
+            var flags = self.getGroupFlags(group.flags, options.get_flags === 'all');
+            if (!$.isEmptyObject(flags)) {
+                groupData.flags = flags;
+            }
+        }
+
+        group.each(function(rule) {
+            if (!rule.filter && options.skip_empty) {
+                return;
+            }
+
+            var value = null;
+            if (!rule.operator || rule.operator.nb_inputs !== 0) {
+                value = rule.value;
+            }
+
+            var ruleData = {
+                id: rule.filter ? rule.filter.id : null,
+                field: rule.filter ? rule.filter.field : null,
+                type: rule.filter ? rule.filter.type : null,
+                input: rule.filter ? rule.filter.input : null,
+                operator: rule.operator ? rule.operator.type : null,
+                value: value
+            };
+
+            if (rule.filter && rule.filter.data || rule.data) {
+                ruleData.data = $.extendext(true, 'replace', {}, rule.filter.data, rule.data);
+            }
+
+            if (options.get_flags) {
+                var flags = self.getRuleFlags(rule.flags, options.get_flags === 'all');
+                if (!$.isEmptyObject(flags)) {
+                    ruleData.flags = flags;
+                }
+            }
+
+            /**
+             * Modifies the JSON generated from a Rule object
+             * @event changer:ruleToJson
+             * @memberof QueryBuilder
+             * @param {object} json
+             * @param {Rule} rule
+             * @returns {object}
+             */
+            groupData.rules.push(self.change('ruleToJson', ruleData, rule));
+
+        }, function(model) {
+            var data = parse(model);
+            if (data.rules.length !== 0 || !options.skip_empty) {
+                groupData.rules.push(data);
+            }
+        }, this);
+
+        /**
+         * Modifies the JSON generated from a Group object
+         * @event changer:groupToJson
+         * @memberof QueryBuilder
+         * @param {object} json
+         * @param {Group} group
+         * @returns {object}
+         */
+        return self.change('groupToJson', groupData, group);
+
+    }(this.model.root));
+
+    out.valid = valid;
+
+    /**
+     * Modifies the result of the {@link QueryBuilder#getRules} method
+     * @event changer:getRules
+     * @memberof QueryBuilder
+     * @param {object} json
+     * @returns {object}
+     */
+    return this.change('getRules', out);
+};
+
+/**
+ * Sets rules from object
+ * @param {object} data
+ * @param {object} [options]
+ * @param {boolean} [options.allow_invalid=false] - silent-fail if the data are invalid
+ * @throws RulesError, UndefinedConditionError
+ * @fires QueryBuilder.changer:setRules
+ * @fires QueryBuilder.changer:jsonToRule
+ * @fires QueryBuilder.changer:jsonToGroup
+ * @fires QueryBuilder.afterSetRules
+ */
+QueryBuilder.prototype.setRules = function(data, options) {
+    options = $.extend({
+        allow_invalid: false
+    }, options);
+
+    if ($.isArray(data)) {
+        data = {
+            condition: this.settings.default_condition,
+            rules: data
+        };
+    }
+
+    if (!data || !data.rules || (data.rules.length === 0 && !this.settings.allow_empty)) {
+        Utils.error('RulesParse', 'Incorrect data object passed');
+    }
+
+    this.clear();
+    this.setRoot(false, data.data, this.parseGroupFlags(data));
+
+    /**
+     * Modifies data before the {@link QueryBuilder#setRules} method
+     * @event changer:setRules
+     * @memberof QueryBuilder
+     * @param {object} json
+     * @param {object} options
+     * @returns {object}
+     */
+    data = this.change('setRules', data, options);
+
+    var self = this;
+
+    (function add(data, group) {
+        if (group === null) {
+            return;
+        }
+
+        if (data.condition === undefined) {
+            data.condition = self.settings.default_condition;
+        }
+        else if (self.settings.conditions.indexOf(data.condition) == -1) {
+            Utils.error(!options.allow_invalid, 'UndefinedCondition', 'Invalid condition "{0}"', data.condition);
+            data.condition = self.settings.default_condition;
+        }
+
+        group.condition = data.condition;
+
+        data.rules.forEach(function(item) {
+            var model;
+
+            if (item.rules !== undefined) {
+                if (self.settings.allow_groups !== -1 && self.settings.allow_groups < group.level) {
+                    Utils.error(!options.allow_invalid, 'RulesParse', 'No more than {0} groups are allowed', self.settings.allow_groups);
+                    self.reset();
+                }
+                else {
+                    model = self.addGroup(group, false, item.data, self.parseGroupFlags(item));
+                    if (model === null) {
+                        return;
+                    }
+
+                    add(item, model);
+                }
+            }
+            else {
+                if (!item.empty) {
+                    if (item.id === undefined) {
+                        Utils.error(!options.allow_invalid, 'RulesParse', 'Missing rule field id');
+                        item.empty = true;
+                    }
+                    if (item.operator === undefined) {
+                        item.operator = 'equal';
+                    }
+                }
+
+                model = self.addRule(group, item.data, self.parseRuleFlags(item));
+                if (model === null) {
+                    return;
+                }
+
+                if (!item.empty) {
+                    model.filter = self.getFilterById(item.id, !options.allow_invalid);
+                }
+
+                if (model.filter) {
+                    model.operator = self.getOperatorByType(item.operator, !options.allow_invalid);
+
+                    if (!model.operator) {
+                        model.operator = self.getOperators(model.filter)[0];
+                    }
+                }
+
+                if (model.operator && model.operator.nb_inputs !== 0) {
+                    if (item.value !== undefined) {
+                        model.value = item.value;
+                    }
+                    else if (model.filter.default_value !== undefined) {
+                        model.value = model.filter.default_value;
+                    }
+                }
+
+                /**
+                 * Modifies the Rule object generated from the JSON
+                 * @event changer:jsonToRule
+                 * @memberof QueryBuilder
+                 * @param {Rule} rule
+                 * @param {object} json
+                 * @returns {Rule} the same rule
+                 */
+                if (self.change('jsonToRule', model, item) != model) {
+                    Utils.error('RulesParse', 'Plugin tried to change rule reference');
+                }
+            }
+        });
+
+        /**
+         * Modifies the Group object generated from the JSON
+         * @event changer:jsonToGroup
+         * @memberof QueryBuilder
+         * @param {Group} group
+         * @param {object} json
+         * @returns {Group} the same group
+         */
+        if (self.change('jsonToGroup', group, data) != group) {
+            Utils.error('RulesParse', 'Plugin tried to change group reference');
+        }
+
+    }(data, this.model.root));
+
+    /**
+     * After the {@link QueryBuilder#setRules} method
+     * @event afterSetRules
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterSetRules');
+};
+
+
+/**
+ * Performs value validation
+ * @param {Rule} rule
+ * @param {string|string[]} value
+ * @returns {array|boolean} true or error array
+ * @fires QueryBuilder.changer:validateValue
+ */
+QueryBuilder.prototype.validateValue = function(rule, value) {
+    var validation = rule.filter.validation || {};
+    var result = true;
+
+    if (validation.callback) {
+        result = validation.callback.call(this, value, rule);
+    }
+    else {
+        result = this._validateValue(rule, value);
+    }
+
+    /**
+     * Modifies the result of the rule validation method
+     * @event changer:validateValue
+     * @memberof QueryBuilder
+     * @param {array|boolean} result - true or an error array
+     * @param {*} value
+     * @param {Rule} rule
+     * @returns {array|boolean}
+     */
+    return this.change('validateValue', result, value, rule);
+};
+
+/**
+ * Default validation function
+ * @param {Rule} rule
+ * @param {string|string[]} value
+ * @returns {array|boolean} true or error array
+ * @throws ConfigError
+ * @private
+ */
+QueryBuilder.prototype._validateValue = function(rule, value) {
+    var filter = rule.filter;
+    var operator = rule.operator;
+    var validation = filter.validation || {};
+    var result = true;
+    var tmp, tempValue;
+
+    if (rule.operator.nb_inputs === 1) {
+        value = [value];
+    }
+
+    for (var i = 0; i < operator.nb_inputs; i++) {
+        if (!operator.multiple && $.isArray(value[i]) && value[i].length > 1) {
+            result = ['operator_not_multiple', operator.type, this.translate('operators', operator.type)];
+            break;
+        }
+
+        switch (filter.input) {
+            case 'radio':
+                if (value[i] === undefined || value[i].length === 0) {
+                    if (!validation.allow_empty_value) {
+                        result = ['radio_empty'];
+                    }
+                    break;
+                }
+                break;
+
+            case 'checkbox':
+                if (value[i] === undefined || value[i].length === 0) {
+                    if (!validation.allow_empty_value) {
+                        result = ['checkbox_empty'];
+                    }
+                    break;
+                }
+                break;
+
+            case 'select':
+                if (value[i] === undefined || value[i].length === 0 || (filter.placeholder && value[i] == filter.placeholder_value)) {
+                    if (!validation.allow_empty_value) {
+                        result = ['select_empty'];
+                    }
+                    break;
+                }
+                break;
+
+            default:
+                tempValue = $.isArray(value[i]) ? value[i] : [value[i]];
+
+                for (var j = 0; j < tempValue.length; j++) {
+                    switch (QueryBuilder.types[filter.type]) {
+                        case 'string':
+                            if (tempValue[j] === undefined || tempValue[j].length === 0) {
+                                if (!validation.allow_empty_value) {
+                                    result = ['string_empty'];
+                                }
+                                break;
+                            }
+                            if (validation.min !== undefined) {
+                                if (tempValue[j].length < parseInt(validation.min)) {
+                                    result = [this.getValidationMessage(validation, 'min', 'string_exceed_min_length'), validation.min];
+                                    break;
+                                }
+                            }
+                            if (validation.max !== undefined) {
+                                if (tempValue[j].length > parseInt(validation.max)) {
+                                    result = [this.getValidationMessage(validation, 'max', 'string_exceed_max_length'), validation.max];
+                                    break;
+                                }
+                            }
+                            if (validation.format) {
+                                if (typeof validation.format == 'string') {
+                                    validation.format = new RegExp(validation.format);
+                                }
+                                if (!validation.format.test(tempValue[j])) {
+                                    result = [this.getValidationMessage(validation, 'format', 'string_invalid_format'), validation.format];
+                                    break;
+                                }
+                            }
+                            break;
+
+                        case 'number':
+                            if (tempValue[j] === undefined || tempValue[j].length === 0) {
+                                if (!validation.allow_empty_value) {
+                                    result = ['number_nan'];
+                                }
+                                break;
+                            }
+                            if (isNaN(tempValue[j])) {
+                                result = ['number_nan'];
+                                break;
+                            }
+                            if (filter.type == 'integer') {
+                                if (parseInt(tempValue[j]) != tempValue[j]) {
+                                    result = ['number_not_integer'];
+                                    break;
+                                }
+                            }
+                            else {
+                                if (parseFloat(tempValue[j]) != tempValue[j]) {
+                                    result = ['number_not_double'];
+                                    break;
+                                }
+                            }
+                            if (validation.min !== undefined) {
+                                if (tempValue[j] < parseFloat(validation.min)) {
+                                    result = [this.getValidationMessage(validation, 'min', 'number_exceed_min'), validation.min];
+                                    break;
+                                }
+                            }
+                            if (validation.max !== undefined) {
+                                if (tempValue[j] > parseFloat(validation.max)) {
+                                    result = [this.getValidationMessage(validation, 'max', 'number_exceed_max'), validation.max];
+                                    break;
+                                }
+                            }
+                            if (validation.step !== undefined && validation.step !== 'any') {
+                                var v = (tempValue[j] / validation.step).toPrecision(14);
+                                if (parseInt(v) != v) {
+                                    result = [this.getValidationMessage(validation, 'step', 'number_wrong_step'), validation.step];
+                                    break;
+                                }
+                            }
+                            break;
+
+                        case 'datetime':
+                            if (tempValue[j] === undefined || tempValue[j].length === 0) {
+                                if (!validation.allow_empty_value) {
+                                    result = ['datetime_empty'];
+                                }
+                                break;
+                            }
+
+                            // we need MomentJS
+                            if (validation.format) {
+                                if (!('moment' in window)) {
+                                    Utils.error('MissingLibrary', 'MomentJS is required for Date/Time validation. Get it here http://momentjs.com');
+                                }
+
+                                var datetime = moment(tempValue[j], validation.format);
+                                if (!datetime.isValid()) {
+                                    result = [this.getValidationMessage(validation, 'format', 'datetime_invalid'), validation.format];
+                                    break;
+                                }
+                                else {
+                                    if (validation.min) {
+                                        if (datetime < moment(validation.min, validation.format)) {
+                                            result = [this.getValidationMessage(validation, 'min', 'datetime_exceed_min'), validation.min];
+                                            break;
+                                        }
+                                    }
+                                    if (validation.max) {
+                                        if (datetime > moment(validation.max, validation.format)) {
+                                            result = [this.getValidationMessage(validation, 'max', 'datetime_exceed_max'), validation.max];
+                                            break;
+                                        }
+                                    }
+                                }
+                            }
+                            break;
+
+                        case 'boolean':
+                            if (tempValue[j] === undefined || tempValue[j].length === 0) {
+                                if (!validation.allow_empty_value) {
+                                    result = ['boolean_not_valid'];
+                                }
+                                break;
+                            }
+                            tmp = ('' + tempValue[j]).trim().toLowerCase();
+                            if (tmp !== 'true' && tmp !== 'false' && tmp !== '1' && tmp !== '0' && tempValue[j] !== 1 && tempValue[j] !== 0) {
+                                result = ['boolean_not_valid'];
+                                break;
+                            }
+                    }
+
+                    if (result !== true) {
+                        break;
+                    }
+                }
+        }
+
+        if (result !== true) {
+            break;
+        }
+    }
+
+    if ((rule.operator.type === 'between' || rule.operator.type === 'not_between') && value.length === 2) {
+        switch (QueryBuilder.types[filter.type]) {
+            case 'number':
+                if (value[0] > value[1]) {
+                    result = ['number_between_invalid', value[0], value[1]];
+                }
+                break;
+
+            case 'datetime':
+                // we need MomentJS
+                if (validation.format) {
+                    if (!('moment' in window)) {
+                        Utils.error('MissingLibrary', 'MomentJS is required for Date/Time validation. Get it here http://momentjs.com');
+                    }
+
+                    if (moment(value[0], validation.format).isAfter(moment(value[1], validation.format))) {
+                        result = ['datetime_between_invalid', value[0], value[1]];
+                    }
+                }
+                break;
+        }
+    }
+
+    return result;
+};
+
+/**
+ * Returns an incremented group ID
+ * @returns {string}
+ * @private
+ */
+QueryBuilder.prototype.nextGroupId = function() {
+    return this.status.id + '_group_' + (this.status.group_id++);
+};
+
+/**
+ * Returns an incremented rule ID
+ * @returns {string}
+ * @private
+ */
+QueryBuilder.prototype.nextRuleId = function() {
+    return this.status.id + '_rule_' + (this.status.rule_id++);
+};
+
+/**
+ * Returns the operators for a filter
+ * @param {string|object} filter - filter id or filter object
+ * @returns {object[]}
+ * @fires QueryBuilder.changer:getOperators
+ * @private
+ */
+QueryBuilder.prototype.getOperators = function(filter) {
+    if (typeof filter == 'string') {
+        filter = this.getFilterById(filter);
+    }
+
+    var result = [];
+
+    for (var i = 0, l = this.operators.length; i < l; i++) {
+        // filter operators check
+        if (filter.operators) {
+            if (filter.operators.indexOf(this.operators[i].type) == -1) {
+                continue;
+            }
+        }
+        // type check
+        else if (this.operators[i].apply_to.indexOf(QueryBuilder.types[filter.type]) == -1) {
+            continue;
+        }
+
+        result.push(this.operators[i]);
+    }
+
+    // keep sort order defined for the filter
+    if (filter.operators) {
+        result.sort(function(a, b) {
+            return filter.operators.indexOf(a.type) - filter.operators.indexOf(b.type);
+        });
+    }
+
+    /**
+     * Modifies the operators available for a filter
+     * @event changer:getOperators
+     * @memberof QueryBuilder
+     * @param {QueryBuilder.Operator[]} operators
+     * @param {QueryBuilder.Filter} filter
+     * @returns {QueryBuilder.Operator[]}
+     */
+    return this.change('getOperators', result, filter);
+};
+
+/**
+ * Returns a particular filter by its id
+ * @param {string} id
+ * @param {boolean} [doThrow=true]
+ * @returns {object|null}
+ * @throws UndefinedFilterError
+ * @private
+ */
+QueryBuilder.prototype.getFilterById = function(id, doThrow) {
+    if (id == '-1') {
+        return null;
+    }
+
+    for (var i = 0, l = this.filters.length; i < l; i++) {
+        if (this.filters[i].id == id) {
+            return this.filters[i];
+        }
+    }
+
+    Utils.error(doThrow !== false, 'UndefinedFilter', 'Undefined filter "{0}"', id);
+
+    return null;
+};
+
+/**
+ * Returns a particular operator by its type
+ * @param {string} type
+ * @param {boolean} [doThrow=true]
+ * @returns {object|null}
+ * @throws UndefinedOperatorError
+ * @private
+ */
+QueryBuilder.prototype.getOperatorByType = function(type, doThrow) {
+    if (type == '-1') {
+        return null;
+    }
+
+    for (var i = 0, l = this.operators.length; i < l; i++) {
+        if (this.operators[i].type == type) {
+            return this.operators[i];
+        }
+    }
+
+    Utils.error(doThrow !== false, 'UndefinedOperator', 'Undefined operator "{0}"', type);
+
+    return null;
+};
+
+/**
+ * Returns rule's current input value
+ * @param {Rule} rule
+ * @returns {*}
+ * @fires QueryBuilder.changer:getRuleValue
+ * @private
+ */
+QueryBuilder.prototype.getRuleInputValue = function(rule) {
+    var filter = rule.filter;
+    var operator = rule.operator;
+    var value = [];
+
+    if (filter.valueGetter) {
+        value = filter.valueGetter.call(this, rule);
+    }
+    else {
+        var $value = rule.$el.find(QueryBuilder.selectors.value_container);
+
+        for (var i = 0; i < operator.nb_inputs; i++) {
+            var name = Utils.escapeElementId(rule.id + '_value_' + i);
+            var tmp;
+
+            switch (filter.input) {
+                case 'radio':
+                    value.push($value.find('[name=' + name + ']:checked').val());
+                    break;
+
+                case 'checkbox':
+                    tmp = [];
+                    // jshint loopfunc:true
+                    $value.find('[name=' + name + ']:checked').each(function() {
+                        tmp.push($(this).val());
+                    });
+                    // jshint loopfunc:false
+                    value.push(tmp);
+                    break;
+
+                case 'select':
+                    if (filter.multiple) {
+                        tmp = [];
+                        // jshint loopfunc:true
+                        $value.find('[name=' + name + '] option:selected').each(function() {
+                            tmp.push($(this).val());
+                        });
+                        // jshint loopfunc:false
+                        value.push(tmp);
+                    }
+                    else {
+                        value.push($value.find('[name=' + name + '] option:selected').val());
+                    }
+                    break;
+
+                default:
+                    value.push($value.find('[name=' + name + ']').val());
+            }
+        }
+
+        value = value.map(function(val) {
+            if (operator.multiple && filter.value_separator && typeof val == 'string') {
+                val = val.split(filter.value_separator);
+            }
+
+            if ($.isArray(val)) {
+                return val.map(function(subval) {
+                    return Utils.changeType(subval, filter.type);
+                });
+            }
+            else {
+                return Utils.changeType(val, filter.type);
+            }
+        });
+
+        if (operator.nb_inputs === 1) {
+            value = value[0];
+        }
+
+        // @deprecated
+        if (filter.valueParser) {
+            value = filter.valueParser.call(this, rule, value);
+        }
+    }
+
+    /**
+     * Modifies the rule's value grabbed from the DOM
+     * @event changer:getRuleValue
+     * @memberof QueryBuilder
+     * @param {*} value
+     * @param {Rule} rule
+     * @returns {*}
+     */
+    return this.change('getRuleValue', value, rule);
+};
+
+/**
+ * Sets the value of a rule's input
+ * @param {Rule} rule
+ * @param {*} value
+ * @private
+ */
+QueryBuilder.prototype.setRuleInputValue = function(rule, value) {
+    var filter = rule.filter;
+    var operator = rule.operator;
+
+    if (!filter || !operator) {
+        return;
+    }
+
+    rule._updating_input = true;
+
+    if (filter.valueSetter) {
+        filter.valueSetter.call(this, rule, value);
+    }
+    else {
+        var $value = rule.$el.find(QueryBuilder.selectors.value_container);
+
+        if (operator.nb_inputs == 1) {
+            value = [value];
+        }
+
+        for (var i = 0; i < operator.nb_inputs; i++) {
+            var name = Utils.escapeElementId(rule.id + '_value_' + i);
+
+            switch (filter.input) {
+                case 'radio':
+                    $value.find('[name=' + name + '][value="' + value[i] + '"]').prop('checked', true).trigger('change');
+                    break;
+
+                case 'checkbox':
+                    if (!$.isArray(value[i])) {
+                        value[i] = [value[i]];
+                    }
+                    // jshint loopfunc:true
+                    value[i].forEach(function(value) {
+                        $value.find('[name=' + name + '][value="' + value + '"]').prop('checked', true).trigger('change');
+                    });
+                    // jshint loopfunc:false
+                    break;
+
+                default:
+                    if (operator.multiple && filter.value_separator && $.isArray(value[i])) {
+                        value[i] = value[i].join(filter.value_separator);
+                    }
+                    $value.find('[name=' + name + ']').val(value[i]).trigger('change');
+                    break;
+            }
+        }
+    }
+
+    rule._updating_input = false;
+};
+
+/**
+ * Parses rule flags
+ * @param {object} rule
+ * @returns {object}
+ * @fires QueryBuilder.changer:parseRuleFlags
+ * @private
+ */
+QueryBuilder.prototype.parseRuleFlags = function(rule) {
+    var flags = $.extend({}, this.settings.default_rule_flags);
+
+    if (rule.readonly) {
+        $.extend(flags, {
+            filter_readonly: true,
+            operator_readonly: true,
+            value_readonly: true,
+            no_delete: true
+        });
+    }
+
+    if (rule.flags) {
+        $.extend(flags, rule.flags);
+    }
+
+    /**
+     * Modifies the consolidated rule's flags
+     * @event changer:parseRuleFlags
+     * @memberof QueryBuilder
+     * @param {object} flags
+     * @param {object} rule - <b>not</b> a Rule object
+     * @returns {object}
+     */
+    return this.change('parseRuleFlags', flags, rule);
+};
+
+/**
+ * Gets a copy of flags of a rule
+ * @param {object} flags
+ * @param {boolean} [all=false] - return all flags or only changes from default flags
+ * @returns {object}
+ * @private
+ */
+QueryBuilder.prototype.getRuleFlags = function(flags, all) {
+    if (all) {
+        return $.extend({}, flags);
+    }
+    else {
+        var ret = {};
+        $.each(this.settings.default_rule_flags, function(key, value) {
+            if (flags[key] !== value) {
+                ret[key] = flags[key];
+            }
+        });
+        return ret;
+    }
+};
+
+/**
+ * Parses group flags
+ * @param {object} group
+ * @returns {object}
+ * @fires QueryBuilder.changer:parseGroupFlags
+ * @private
+ */
+QueryBuilder.prototype.parseGroupFlags = function(group) {
+    var flags = $.extend({}, this.settings.default_group_flags);
+
+    if (group.readonly) {
+        $.extend(flags, {
+            condition_readonly: true,
+            no_add_rule: true,
+            no_add_group: true,
+            no_delete: true
+        });
+    }
+
+    if (group.flags) {
+        $.extend(flags, group.flags);
+    }
+
+    /**
+     * Modifies the consolidated group's flags
+     * @event changer:parseGroupFlags
+     * @memberof QueryBuilder
+     * @param {object} flags
+     * @param {object} group - <b>not</b> a Group object
+     * @returns {object}
+     */
+    return this.change('parseGroupFlags', flags, group);
+};
+
+/**
+ * Gets a copy of flags of a group
+ * @param {object} flags
+ * @param {boolean} [all=false] - return all flags or only changes from default flags
+ * @returns {object}
+ * @private
+ */
+QueryBuilder.prototype.getGroupFlags = function(flags, all) {
+    if (all) {
+        return $.extend({}, flags);
+    }
+    else {
+        var ret = {};
+        $.each(this.settings.default_group_flags, function(key, value) {
+            if (flags[key] !== value) {
+                ret[key] = flags[key];
+            }
+        });
+        return ret;
+    }
+};
+
+/**
+ * Translate a label either by looking in the `lang` object or in itself if it's an object where keys are language codes
+ * @param {string} [category]
+ * @param {string|object} key
+ * @returns {string}
+ * @fires QueryBuilder.changer:translate
+ */
+QueryBuilder.prototype.translate = function(category, key) {
+    if (!key) {
+        key = category;
+        category = undefined;
+    }
+
+    var translation;
+    if (typeof key === 'object') {
+        translation = key[this.settings.lang_code] || key['en'];
+    }
+    else {
+        translation = (category ? this.lang[category] : this.lang)[key] || key;
+    }
+
+    /**
+     * Modifies the translated label
+     * @event changer:translate
+     * @memberof QueryBuilder
+     * @param {string} translation
+     * @param {string|object} key
+     * @param {string} [category]
+     * @returns {string}
+     */
+    return this.change('translate', translation, key, category);
+};
+
+/**
+ * Returns a validation message
+ * @param {object} validation
+ * @param {string} type
+ * @param {string} def
+ * @returns {string}
+ * @private
+ */
+QueryBuilder.prototype.getValidationMessage = function(validation, type, def) {
+    return validation.messages && validation.messages[type] || def;
+};
+
+
+QueryBuilder.templates.group = '\
+<div id="{{= it.group_id }}" class="rules-group-container"> \
+  <div class="rules-group-header"> \
+    <div class="btn-group pull-right group-actions"> \
+      <button type="button" class="btn btn-xs btn-success" data-add="rule"> \
+        <i class="{{= it.icons.add_rule }}"></i> {{= it.translate("add_rule") }} \
+      </button> \
+      {{? it.settings.allow_groups===-1 || it.settings.allow_groups>=it.level }} \
+        <button type="button" class="btn btn-xs btn-success" data-add="group"> \
+          <i class="{{= it.icons.add_group }}"></i> {{= it.translate("add_group") }} \
+        </button> \
+      {{?}} \
+      {{? it.level>1 }} \
+        <button type="button" class="btn btn-xs btn-danger" data-delete="group"> \
+          <i class="{{= it.icons.remove_group }}"></i> {{= it.translate("delete_group") }} \
+        </button> \
+      {{?}} \
+    </div> \
+    <div class="btn-group group-conditions"> \
+      {{~ it.conditions: condition }} \
+        <label class="btn btn-xs btn-primary"> \
+          <input type="radio" name="{{= it.group_id }}_cond" value="{{= condition }}"> {{= it.translate("conditions", condition) }} \
+        </label> \
+      {{~}} \
+    </div> \
+    {{? it.settings.display_errors }} \
+      <div class="error-container"><i class="{{= it.icons.error }}"></i></div> \
+    {{?}} \
+  </div> \
+  <div class=rules-group-body> \
+    <div class=rules-list></div> \
+  </div> \
+</div>';
+
+QueryBuilder.templates.rule = '\
+<div id="{{= it.rule_id }}" class="rule-container"> \
+  <div class="rule-header"> \
+    <div class="btn-group pull-right rule-actions"> \
+      <button type="button" class="btn btn-xs btn-danger" data-delete="rule"> \
+        <i class="{{= it.icons.remove_rule }}"></i> {{= it.translate("delete_rule") }} \
+      </button> \
+    </div> \
+  </div> \
+  {{? it.settings.display_errors }} \
+    <div class="error-container"><i class="{{= it.icons.error }}"></i></div> \
+  {{?}} \
+  <div class="rule-filter-container"></div> \
+  <div class="rule-operator-container"></div> \
+  <div class="rule-value-container"></div> \
+</div>';
+
+QueryBuilder.templates.filterSelect = '\
+{{ var optgroup = null; }} \
+<select class="form-control" name="{{= it.rule.id }}_filter"> \
+  {{? it.settings.display_empty_filter }} \
+    <option value="-1">{{= it.settings.select_placeholder }}</option> \
+  {{?}} \
+  {{~ it.filters: filter }} \
+    {{? optgroup !== filter.optgroup }} \
+      {{? optgroup !== null }}</optgroup>{{?}} \
+      {{? (optgroup = filter.optgroup) !== null }} \
+        <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}"> \
+      {{?}} \
+    {{?}} \
+    <option value="{{= filter.id }}" {{? filter.icon}}data-icon="{{= filter.icon}}"{{?}}>{{= it.translate(filter.label) }}</option> \
+  {{~}} \
+  {{? optgroup !== null }}</optgroup>{{?}} \
+</select>';
+
+QueryBuilder.templates.operatorSelect = '\
+{{? it.operators.length === 1 }} \
+<span> \
+{{= it.translate("operators", it.operators[0].type) }} \
+</span> \
+{{?}} \
+{{ var optgroup = null; }} \
+<select class="form-control {{? it.operators.length === 1 }}hide{{?}}" name="{{= it.rule.id }}_operator"> \
+  {{~ it.operators: operator }} \
+    {{? optgroup !== operator.optgroup }} \
+      {{? optgroup !== null }}</optgroup>{{?}} \
+      {{? (optgroup = operator.optgroup) !== null }} \
+        <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}"> \
+      {{?}} \
+    {{?}} \
+    <option value="{{= operator.type }}" {{? operator.icon}}data-icon="{{= operator.icon}}"{{?}}>{{= it.translate("operators", operator.type) }}</option> \
+  {{~}} \
+  {{? optgroup !== null }}</optgroup>{{?}} \
+</select>';
+
+QueryBuilder.templates.ruleValueSelect = '\
+{{ var optgroup = null; }} \
+<select class="form-control" name="{{= it.name }}" {{? it.rule.filter.multiple }}multiple{{?}}> \
+  {{? it.rule.filter.placeholder }} \
+    <option value="{{= it.rule.filter.placeholder_value }}" disabled selected>{{= it.rule.filter.placeholder }}</option> \
+  {{?}} \
+  {{~ it.rule.filter.values: entry }} \
+    {{? optgroup !== entry.optgroup }} \
+      {{? optgroup !== null }}</optgroup>{{?}} \
+      {{? (optgroup = entry.optgroup) !== null }} \
+        <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}"> \
+      {{?}} \
+    {{?}} \
+    <option value="{{= entry.value }}">{{= entry.label }}</option> \
+  {{~}} \
+  {{? optgroup !== null }}</optgroup>{{?}} \
+</select>';
+
+/**
+ * Returns group's HTML
+ * @param {string} group_id
+ * @param {int} level
+ * @returns {string}
+ * @fires QueryBuilder.changer:getGroupTemplate
+ * @private
+ */
+QueryBuilder.prototype.getGroupTemplate = function(group_id, level) {
+    var h = this.templates.group({
+        builder: this,
+        group_id: group_id,
+        level: level,
+        conditions: this.settings.conditions,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of a group
+     * @event changer:getGroupTemplate
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param {int} level
+     * @returns {string}
+     */
+    return this.change('getGroupTemplate', h, level);
+};
+
+/**
+ * Returns rule's HTML
+ * @param {string} rule_id
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleTemplate
+ * @private
+ */
+QueryBuilder.prototype.getRuleTemplate = function(rule_id) {
+    var h = this.templates.rule({
+        builder: this,
+        rule_id: rule_id,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of a rule
+     * @event changer:getRuleTemplate
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @returns {string}
+     */
+    return this.change('getRuleTemplate', h);
+};
+
+/**
+ * Returns rule's filter HTML
+ * @param {Rule} rule
+ * @param {object[]} filters
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleFilterTemplate
+ * @private
+ */
+QueryBuilder.prototype.getRuleFilterSelect = function(rule, filters) {
+    var h = this.templates.filterSelect({
+        builder: this,
+        rule: rule,
+        filters: filters,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of the rule's filter dropdown
+     * @event changer:getRuleFilterSelect
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param {Rule} rule
+     * @param {QueryBuilder.Filter[]} filters
+     * @returns {string}
+     */
+    return this.change('getRuleFilterSelect', h, rule, filters);
+};
+
+/**
+ * Returns rule's operator HTML
+ * @param {Rule} rule
+ * @param {object[]} operators
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleOperatorTemplate
+ * @private
+ */
+QueryBuilder.prototype.getRuleOperatorSelect = function(rule, operators) {
+    var h = this.templates.operatorSelect({
+        builder: this,
+        rule: rule,
+        operators: operators,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of the rule's operator dropdown
+     * @event changer:getRuleOperatorSelect
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param {Rule} rule
+     * @param {QueryBuilder.Operator[]} operators
+     * @returns {string}
+     */
+    return this.change('getRuleOperatorSelect', h, rule, operators);
+};
+
+/**
+ * Returns the rule's value select HTML
+ * @param {string} name
+ * @param {Rule} rule
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleValueSelect
+ * @private
+ */
+QueryBuilder.prototype.getRuleValueSelect = function(name, rule) {
+    var h = this.templates.ruleValueSelect({
+        builder: this,
+        name: name,
+        rule: rule,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of the rule's value dropdown (in case of a "select filter)
+     * @event changer:getRuleValueSelect
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param [string} name
+     * @param {Rule} rule
+     * @returns {string}
+     */
+    return this.change('getRuleValueSelect', h, name, rule);
+};
+
+/**
+ * Returns the rule's value HTML
+ * @param {Rule} rule
+ * @param {int} value_id
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleInput
+ * @private
+ */
+QueryBuilder.prototype.getRuleInput = function(rule, value_id) {
+    var filter = rule.filter;
+    var validation = rule.filter.validation || {};
+    var name = rule.id + '_value_' + value_id;
+    var c = filter.vertical ? ' class=block' : '';
+    var h = '';
+
+    if (typeof filter.input == 'function') {
+        h = filter.input.call(this, rule, name);
+    }
+    else {
+        switch (filter.input) {
+            case 'radio':
+            case 'checkbox':
+                Utils.iterateOptions(filter.values, function(key, val) {
+                    h += '<label' + c + '><input type="' + filter.input + '" name="' + name + '" value="' + key + '"> ' + val + '</label> ';
+                });
+                break;
+
+            case 'select':
+                h = this.getRuleValueSelect(name, rule);
+                break;
+
+            case 'textarea':
+                h += '<textarea class="form-control" name="' + name + '"';
+                if (filter.size) h += ' cols="' + filter.size + '"';
+                if (filter.rows) h += ' rows="' + filter.rows + '"';
+                if (validation.min !== undefined) h += ' minlength="' + validation.min + '"';
+                if (validation.max !== undefined) h += ' maxlength="' + validation.max + '"';
+                if (filter.placeholder) h += ' placeholder="' + filter.placeholder + '"';
+                h += '></textarea>';
+                break;
+
+            case 'number':
+                h += '<input class="form-control" type="number" name="' + name + '"';
+                if (validation.step !== undefined) h += ' step="' + validation.step + '"';
+                if (validation.min !== undefined) h += ' min="' + validation.min + '"';
+                if (validation.max !== undefined) h += ' max="' + validation.max + '"';
+                if (filter.placeholder) h += ' placeholder="' + filter.placeholder + '"';
+                if (filter.size) h += ' size="' + filter.size + '"';
+                h += '>';
+                break;
+
+            default:
+                h += '<input class="form-control" type="text" name="' + name + '"';
+                if (filter.placeholder) h += ' placeholder="' + filter.placeholder + '"';
+                if (filter.type === 'string' && validation.min !== undefined) h += ' minlength="' + validation.min + '"';
+                if (filter.type === 'string' && validation.max !== undefined) h += ' maxlength="' + validation.max + '"';
+                if (filter.size) h += ' size="' + filter.size + '"';
+                h += '>';
+        }
+    }
+
+    /**
+     * Modifies the raw HTML of the rule's input
+     * @event changer:getRuleInput
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param {Rule} rule
+     * @param {string} name - the name that the input must have
+     * @returns {string}
+     */
+    return this.change('getRuleInput', h, rule, name);
+};
+
+
+/**
+ * @namespace
+ */
+var Utils = {};
+
+/**
+ * @member {object}
+ * @memberof QueryBuilder
+ * @see Utils
+ */
+QueryBuilder.utils = Utils;
+
+/**
+ * @callback Utils#OptionsIteratee
+ * @param {string} key
+ * @param {string} value
+ * @param {string} [optgroup]
+ */
+
+/**
+ * Iterates over radio/checkbox/selection options, it accept four formats
+ *
+ * @example
+ * // array of values
+ * options = ['one', 'two', 'three']
+ * @example
+ * // simple key-value map
+ * options = {1: 'one', 2: 'two', 3: 'three'}
+ * @example
+ * // array of 1-element maps
+ * options = [{1: 'one'}, {2: 'two'}, {3: 'three'}]
+ * @example
+ * // array of elements
+ * options = [{value: 1, label: 'one', optgroup: 'group'}, {value: 2, label: 'two'}]
+ *
+ * @param {object|array} options
+ * @param {Utils#OptionsIteratee} tpl
+ */
+Utils.iterateOptions = function(options, tpl) {
+    if (options) {
+        if ($.isArray(options)) {
+            options.forEach(function(entry) {
+                if ($.isPlainObject(entry)) {
+                    // array of elements
+                    if ('value' in entry) {
+                        tpl(entry.value, entry.label || entry.value, entry.optgroup);
+                    }
+                    // array of one-element maps
+                    else {
+                        $.each(entry, function(key, val) {
+                            tpl(key, val);
+                            return false; // break after first entry
+                        });
+                    }
+                }
+                // array of values
+                else {
+                    tpl(entry, entry);
+                }
+            });
+        }
+        // unordered map
+        else {
+            $.each(options, function(key, val) {
+                tpl(key, val);
+            });
+        }
+    }
+};
+
+/**
+ * Replaces {0}, {1}, ... in a string
+ * @param {string} str
+ * @param {...*} args
+ * @returns {string}
+ */
+Utils.fmt = function(str, args) {
+    if (!Array.isArray(args)) {
+        args = Array.prototype.slice.call(arguments, 1);
+    }
+
+    return str.replace(/{([0-9]+)}/g, function(m, i) {
+        return args[parseInt(i)];
+    });
+};
+
+/**
+ * Throws an Error object with custom name or logs an error
+ * @param {boolean} [doThrow=true]
+ * @param {string} type
+ * @param {string} message
+ * @param {...*} args
+ */
+Utils.error = function() {
+    var i = 0;
+    var doThrow = typeof arguments[i] === 'boolean' ? arguments[i++] : true;
+    var type = arguments[i++];
+    var message = arguments[i++];
+    var args = Array.isArray(arguments[i]) ? arguments[i] : Array.prototype.slice.call(arguments, i);
+
+    if (doThrow) {
+        var err = new Error(Utils.fmt(message, args));
+        err.name = type + 'Error';
+        err.args = args;
+        throw err;
+    }
+    else {
+        console.error(type + 'Error: ' + Utils.fmt(message, args));
+    }
+};
+
+/**
+ * Changes the type of a value to int, float or bool
+ * @param {*} value
+ * @param {string} type - 'integer', 'double', 'boolean' or anything else (passthrough)
+ * @returns {*}
+ */
+Utils.changeType = function(value, type) {
+    if (value === '' || value === undefined) {
+        return undefined;
+    }
+
+    switch (type) {
+        // @formatter:off
+        case 'integer':
+            if (typeof value === 'string' && !/^-?\d+$/.test(value)) {
+                return value;
+            }
+            return parseInt(value);
+        case 'double':
+            if (typeof value === 'string' && !/^-?\d+\.?\d*$/.test(value)) {
+                return value;
+            }
+            return parseFloat(value);
+        case 'boolean':
+            if (typeof value === 'string' && !/^(0|1|true|false){1}$/i.test(value)) {
+                return value;
+            }
+            return value === true || value === 1 || value.toLowerCase() === 'true' || value === '1';
+        default: return value;
+        // @formatter:on
+    }
+};
+
+/**
+ * Escapes a string like PHP's mysql_real_escape_string does
+ * @param {string} value
+ * @returns {string}
+ */
+Utils.escapeString = function(value) {
+    if (typeof value != 'string') {
+        return value;
+    }
+
+    return value
+        .replace(/[\0\n\r\b\\\'\"]/g, function(s) {
+            switch (s) {
+                // @formatter:off
+                case '\0': return '\\0';
+                case '\n': return '\\n';
+                case '\r': return '\\r';
+                case '\b': return '\\b';
+                default:   return '\\' + s;
+                // @formatter:off
+            }
+        })
+        // uglify compliant
+        .replace(/\t/g, '\\t')
+        .replace(/\x1a/g, '\\Z');
+};
+
+/**
+ * Escapes a string for use in regex
+ * @param {string} str
+ * @returns {string}
+ */
+Utils.escapeRegExp = function(str) {
+    return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
+};
+
+/**
+ * Escapes a string for use in HTML element id
+ * @param {string} str
+ * @returns {string}
+ */
+Utils.escapeElementId = function(str) {
+    // Regex based on that suggested by:
+    // https://learn.jquery.com/using-jquery-core/faq/how-do-i-select-an-element-by-an-id-that-has-characters-used-in-css-notation/
+    // - escapes : . [ ] ,
+    // - avoids escaping already escaped values
+    return (str) ? str.replace(/(\\)?([:.\[\],])/g,
+            function( $0, $1, $2 ) { return $1 ? $0 : '\\' + $2; }) : str;
+};
+
+/**
+ * Sorts objects by grouping them by `key`, preserving initial order when possible
+ * @param {object[]} items
+ * @param {string} key
+ * @returns {object[]}
+ */
+Utils.groupSort = function(items, key) {
+    var optgroups = [];
+    var newItems = [];
+
+    items.forEach(function(item) {
+        var idx;
+
+        if (item[key]) {
+            idx = optgroups.lastIndexOf(item[key]);
+
+            if (idx == -1) {
+                idx = optgroups.length;
+            }
+            else {
+                idx++;
+            }
+        }
+        else {
+            idx = optgroups.length;
+        }
+
+        optgroups.splice(idx, 0, item[key]);
+        newItems.splice(idx, 0, item);
+    });
+
+    return newItems;
+};
+
+/**
+ * Defines properties on an Node prototype with getter and setter.<br>
+ *     Update events are emitted in the setter through root Model (if any).<br>
+ *     The object must have a `__` object, non enumerable property to store values.
+ * @param {function} obj
+ * @param {string[]} fields
+ */
+Utils.defineModelProperties = function(obj, fields) {
+    fields.forEach(function(field) {
+        Object.defineProperty(obj.prototype, field, {
+            enumerable: true,
+            get: function() {
+                return this.__[field];
+            },
+            set: function(value) {
+                var previousValue = (this.__[field] !== null && typeof this.__[field] == 'object') ?
+                    $.extend({}, this.__[field]) :
+                    this.__[field];
+
+                this.__[field] = value;
+
+                if (this.model !== null) {
+                    /**
+                     * After a value of the model changed
+                     * @event model:update
+                     * @memberof Model
+                     * @param {Node} node
+                     * @param {string} field
+                     * @param {*} value
+                     * @param {*} previousValue
+                     */
+                    this.model.trigger('update', this, field, value, previousValue);
+                }
+            }
+        });
+    });
+};
+
+
+/**
+ * Main object storing data model and emitting model events
+ * @constructor
+ */
+function Model() {
+    /**
+     * @member {Group}
+     * @readonly
+     */
+    this.root = null;
+
+    /**
+     * Base for event emitting
+     * @member {jQuery}
+     * @readonly
+     * @private
+     */
+    this.$ = $(this);
+}
+
+$.extend(Model.prototype, /** @lends Model.prototype */ {
+    /**
+     * Triggers an event on the model
+     * @param {string} type
+     * @returns {$.Event}
+     */
+    trigger: function(type) {
+        var event = new $.Event(type);
+        this.$.triggerHandler(event, Array.prototype.slice.call(arguments, 1));
+        return event;
+    },
+
+    /**
+     * Attaches an event listener on the model
+     * @param {string} type
+     * @param {function} cb
+     * @returns {Model}
+     */
+    on: function() {
+        this.$.on.apply(this.$, Array.prototype.slice.call(arguments));
+        return this;
+    },
+
+    /**
+     * Removes an event listener from the model
+     * @param {string} type
+     * @param {function} [cb]
+     * @returns {Model}
+     */
+    off: function() {
+        this.$.off.apply(this.$, Array.prototype.slice.call(arguments));
+        return this;
+    },
+
+    /**
+     * Attaches an event listener called once on the model
+     * @param {string} type
+     * @param {function} cb
+     * @returns {Model}
+     */
+    once: function() {
+        this.$.one.apply(this.$, Array.prototype.slice.call(arguments));
+        return this;
+    }
+});
+
+
+/**
+ * Root abstract object
+ * @constructor
+ * @param {Node} [parent]
+ * @param {jQuery} $el
+ */
+var Node = function(parent, $el) {
+    if (!(this instanceof Node)) {
+        return new Node(parent, $el);
+    }
+
+    Object.defineProperty(this, '__', { value: {} });
+
+    $el.data('queryBuilderModel', this);
+
+    /**
+     * @name level
+     * @member {int}
+     * @memberof Node
+     * @instance
+     * @readonly
+     */
+    this.__.level = 1;
+
+    /**
+     * @name error
+     * @member {string}
+     * @memberof Node
+     * @instance
+     */
+    this.__.error = null;
+
+    /**
+     * @name flags
+     * @member {object}
+     * @memberof Node
+     * @instance
+     * @readonly
+     */
+    this.__.flags = {};
+
+    /**
+     * @name data
+     * @member {object}
+     * @memberof Node
+     * @instance
+     */
+    this.__.data = undefined;
+
+    /**
+     * @member {jQuery}
+     * @readonly
+     */
+    this.$el = $el;
+
+    /**
+     * @member {string}
+     * @readonly
+     */
+    this.id = $el[0].id;
+
+    /**
+     * @member {Model}
+     * @readonly
+     */
+    this.model = null;
+
+    /**
+     * @member {Group}
+     * @readonly
+     */
+    this.parent = parent;
+};
+
+Utils.defineModelProperties(Node, ['level', 'error', 'data', 'flags']);
+
+Object.defineProperty(Node.prototype, 'parent', {
+    enumerable: true,
+    get: function() {
+        return this.__.parent;
+    },
+    set: function(value) {
+        this.__.parent = value;
+        this.level = value === null ? 1 : value.level + 1;
+        this.model = value === null ? null : value.model;
+    }
+});
+
+/**
+ * Checks if this Node is the root
+ * @returns {boolean}
+ */
+Node.prototype.isRoot = function() {
+    return (this.level === 1);
+};
+
+/**
+ * Returns the node position inside its parent
+ * @returns {int}
+ */
+Node.prototype.getPos = function() {
+    if (this.isRoot()) {
+        return -1;
+    }
+    else {
+        return this.parent.getNodePos(this);
+    }
+};
+
+/**
+ * Deletes self
+ * @fires Model.model:drop
+ */
+Node.prototype.drop = function() {
+    var model = this.model;
+
+    if (!!this.parent) {
+        this.parent.removeNode(this);
+    }
+
+    this.$el.removeData('queryBuilderModel');
+
+    if (model !== null) {
+        /**
+         * After a node of the model has been removed
+         * @event model:drop
+         * @memberof Model
+         * @param {Node} node
+         */
+        model.trigger('drop', this);
+    }
+};
+
+/**
+ * Moves itself after another Node
+ * @param {Node} target
+ * @fires Model.model:move
+ */
+Node.prototype.moveAfter = function(target) {
+    if (!this.isRoot()) {
+        this.move(target.parent, target.getPos() + 1);
+    }
+};
+
+/**
+ * Moves itself at the beginning of parent or another Group
+ * @param {Group} [target]
+ * @fires Model.model:move
+ */
+Node.prototype.moveAtBegin = function(target) {
+    if (!this.isRoot()) {
+        if (target === undefined) {
+            target = this.parent;
+        }
+
+        this.move(target, 0);
+    }
+};
+
+/**
+ * Moves itself at the end of parent or another Group
+ * @param {Group} [target]
+ * @fires Model.model:move
+ */
+Node.prototype.moveAtEnd = function(target) {
+    if (!this.isRoot()) {
+        if (target === undefined) {
+            target = this.parent;
+        }
+
+        this.move(target, target.length() === 0 ? 0 : target.length() - 1);
+    }
+};
+
+/**
+ * Moves itself at specific position of Group
+ * @param {Group} target
+ * @param {int} index
+ * @fires Model.model:move
+ */
+Node.prototype.move = function(target, index) {
+    if (!this.isRoot()) {
+        if (typeof target === 'number') {
+            index = target;
+            target = this.parent;
+        }
+
+        this.parent.removeNode(this);
+        target.insertNode(this, index, false);
+
+        if (this.model !== null) {
+            /**
+             * After a node of the model has been moved
+             * @event model:move
+             * @memberof Model
+             * @param {Node} node
+             * @param {Node} target
+             * @param {int} index
+             */
+            this.model.trigger('move', this, target, index);
+        }
+    }
+};
+
+
+/**
+ * Group object
+ * @constructor
+ * @extends Node
+ * @param {Group} [parent]
+ * @param {jQuery} $el
+ */
+var Group = function(parent, $el) {
+    if (!(this instanceof Group)) {
+        return new Group(parent, $el);
+    }
+
+    Node.call(this, parent, $el);
+
+    /**
+     * @member {object[]}
+     * @readonly
+     */
+    this.rules = [];
+
+    /**
+     * @name condition
+     * @member {string}
+     * @memberof Group
+     * @instance
+     */
+    this.__.condition = null;
+};
+
+Group.prototype = Object.create(Node.prototype);
+Group.prototype.constructor = Group;
+
+Utils.defineModelProperties(Group, ['condition']);
+
+/**
+ * Removes group's content
+ */
+Group.prototype.empty = function() {
+    this.each('reverse', function(rule) {
+        rule.drop();
+    }, function(group) {
+        group.drop();
+    });
+};
+
+/**
+ * Deletes self
+ */
+Group.prototype.drop = function() {
+    this.empty();
+    Node.prototype.drop.call(this);
+};
+
+/**
+ * Returns the number of children
+ * @returns {int}
+ */
+Group.prototype.length = function() {
+    return this.rules.length;
+};
+
+/**
+ * Adds a Node at specified index
+ * @param {Node} node
+ * @param {int} [index=end]
+ * @param {boolean} [trigger=false] - fire 'add' event
+ * @returns {Node} the inserted node
+ * @fires Model.model:add
+ */
+Group.prototype.insertNode = function(node, index, trigger) {
+    if (index === undefined) {
+        index = this.length();
+    }
+
+    this.rules.splice(index, 0, node);
+    node.parent = this;
+
+    if (trigger && this.model !== null) {
+        /**
+         * After a node of the model has been added
+         * @event model:add
+         * @memberof Model
+         * @param {Node} parent
+         * @param {Node} node
+         * @param {int} index
+         */
+        this.model.trigger('add', this, node, index);
+    }
+
+    return node;
+};
+
+/**
+ * Adds a new Group at specified index
+ * @param {jQuery} $el
+ * @param {int} [index=end]
+ * @returns {Group}
+ * @fires Model.model:add
+ */
+Group.prototype.addGroup = function($el, index) {
+    return this.insertNode(new Group(this, $el), index, true);
+};
+
+/**
+ * Adds a new Rule at specified index
+ * @param {jQuery} $el
+ * @param {int} [index=end]
+ * @returns {Rule}
+ * @fires Model.model:add
+ */
+Group.prototype.addRule = function($el, index) {
+    return this.insertNode(new Rule(this, $el), index, true);
+};
+
+/**
+ * Deletes a specific Node
+ * @param {Node} node
+ */
+Group.prototype.removeNode = function(node) {
+    var index = this.getNodePos(node);
+    if (index !== -1) {
+        node.parent = null;
+        this.rules.splice(index, 1);
+    }
+};
+
+/**
+ * Returns the position of a child Node
+ * @param {Node} node
+ * @returns {int}
+ */
+Group.prototype.getNodePos = function(node) {
+    return this.rules.indexOf(node);
+};
+
+/**
+ * @callback Model#GroupIteratee
+ * @param {Node} node
+ * @returns {boolean} stop the iteration
+ */
+
+/**
+ * Iterate over all Nodes
+ * @param {boolean} [reverse=false] - iterate in reverse order, required if you delete nodes
+ * @param {Model#GroupIteratee} cbRule - callback for Rules (can be `null` but not omitted)
+ * @param {Model#GroupIteratee} [cbGroup] - callback for Groups
+ * @param {object} [context] - context for callbacks
+ * @returns {boolean} if the iteration has been stopped by a callback
+ */
+Group.prototype.each = function(reverse, cbRule, cbGroup, context) {
+    if (typeof reverse !== 'boolean' && typeof reverse !== 'string') {
+        context = cbGroup;
+        cbGroup = cbRule;
+        cbRule = reverse;
+        reverse = false;
+    }
+    context = context === undefined ? null : context;
+
+    var i = reverse ? this.rules.length - 1 : 0;
+    var l = reverse ? 0 : this.rules.length - 1;
+    var c = reverse ? -1 : 1;
+    var next = function() {
+        return reverse ? i >= l : i <= l;
+    };
+    var stop = false;
+
+    for (; next(); i += c) {
+        if (this.rules[i] instanceof Group) {
+            if (!!cbGroup) {
+                stop = cbGroup.call(context, this.rules[i]) === false;
+            }
+        }
+        else if (!!cbRule) {
+            stop = cbRule.call(context, this.rules[i]) === false;
+        }
+
+        if (stop) {
+            break;
+        }
+    }
+
+    return !stop;
+};
+
+/**
+ * Checks if the group contains a particular Node
+ * @param {Node} node
+ * @param {boolean} [recursive=false]
+ * @returns {boolean}
+ */
+Group.prototype.contains = function(node, recursive) {
+    if (this.getNodePos(node) !== -1) {
+        return true;
+    }
+    else if (!recursive) {
+        return false;
+    }
+    else {
+        // the loop will return with false as soon as the Node is found
+        return !this.each(function() {
+            return true;
+        }, function(group) {
+            return !group.contains(node, true);
+        });
+    }
+};
+
+
+/**
+ * Rule object
+ * @constructor
+ * @extends Node
+ * @param {Group} parent
+ * @param {jQuery} $el
+ */
+var Rule = function(parent, $el) {
+    if (!(this instanceof Rule)) {
+        return new Rule(parent, $el);
+    }
+
+    Node.call(this, parent, $el);
+
+    this._updating_value = false;
+    this._updating_input = false;
+
+    /**
+     * @name filter
+     * @member {QueryBuilder.Filter}
+     * @memberof Rule
+     * @instance
+     */
+    this.__.filter = null;
+
+    /**
+     * @name operator
+     * @member {QueryBuilder.Operator}
+     * @memberof Rule
+     * @instance
+     */
+    this.__.operator = null;
+
+    /**
+     * @name value
+     * @member {*}
+     * @memberof Rule
+     * @instance
+     */
+    this.__.value = undefined;
+};
+
+Rule.prototype = Object.create(Node.prototype);
+Rule.prototype.constructor = Rule;
+
+Utils.defineModelProperties(Rule, ['filter', 'operator', 'value']);
+
+/**
+ * Checks if this Node is the root
+ * @returns {boolean} always false
+ */
+Rule.prototype.isRoot = function() {
+    return false;
+};
+
+
+/**
+ * @member {function}
+ * @memberof QueryBuilder
+ * @see Group
+ */
+QueryBuilder.Group = Group;
+
+/**
+ * @member {function}
+ * @memberof QueryBuilder
+ * @see Rule
+ */
+QueryBuilder.Rule = Rule;
+
+
+/**
+ * The {@link http://learn.jquery.com/plugins/|jQuery Plugins} namespace
+ * @external "jQuery.fn"
+ */
+
+/**
+ * Instanciates or accesses the {@link QueryBuilder} on an element
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @param {*} option - initial configuration or method name
+ * @param {...*} args - method arguments
+ *
+ * @example
+ * $('#builder').queryBuilder({ /** configuration object *\/ });
+ * @example
+ * $('#builder').queryBuilder('methodName', methodParam1, methodParam2);
+ */
+$.fn.queryBuilder = function(option) {
+    if (this.length === 0) {
+        Utils.error('Config', 'No target defined');
+    }
+    if (this.length > 1) {
+        Utils.error('Config', 'Unable to initialize on multiple target');
+    }
+
+    var data = this.data('queryBuilder');
+    var options = (typeof option == 'object' && option) || {};
+
+    if (!data && option == 'destroy') {
+        return this;
+    }
+    if (!data) {
+        var builder = new QueryBuilder(this, options);
+        this.data('queryBuilder', builder);
+        builder.init(options.rules);
+    }
+    if (typeof option == 'string') {
+        return data[option].apply(data, Array.prototype.slice.call(arguments, 1));
+    }
+
+    return this;
+};
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder
+ */
+$.fn.queryBuilder.constructor = QueryBuilder;
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder.defaults
+ */
+$.fn.queryBuilder.defaults = QueryBuilder.defaults;
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder.defaults
+ */
+$.fn.queryBuilder.extend = QueryBuilder.extend;
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder.define
+ */
+$.fn.queryBuilder.define = QueryBuilder.define;
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder.regional
+ */
+$.fn.queryBuilder.regional = QueryBuilder.regional;
+
+
+/**
+ * @class BtCheckbox
+ * @memberof module:plugins
+ * @description Applies Awesome Bootstrap Checkbox for checkbox and radio inputs.
+ * @param {object} [options]
+ * @param {string} [options.font='glyphicons']
+ * @param {string} [options.color='default']
+ */
+QueryBuilder.define('bt-checkbox', function(options) {
+    if (options.font == 'glyphicons') {
+        this.$el.addClass('bt-checkbox-glyphicons');
+    }
+
+    this.on('getRuleInput.filter', function(h, rule, name) {
+        var filter = rule.filter;
+
+        if ((filter.input === 'radio' || filter.input === 'checkbox') && !filter.plugin) {
+            h.value = '';
+
+            if (!filter.colors) {
+                filter.colors = {};
+            }
+            if (filter.color) {
+                filter.colors._def_ = filter.color;
+            }
+
+            var style = filter.vertical ? ' style="display:block"' : '';
+            var i = 0;
+
+            Utils.iterateOptions(filter.values, function(key, val) {
+                var color = filter.colors[key] || filter.colors._def_ || options.color;
+                var id = name + '_' + (i++);
+
+                h.value+= '\
+<div' + style + ' class="' + filter.input + ' ' + filter.input + '-' + color + '"> \
+  <input type="' + filter.input + '" name="' + name + '" id="' + id + '" value="' + key + '"> \
+  <label for="' + id + '">' + val + '</label> \
+</div>';
+            });
+        }
+    });
+}, {
+    font: 'glyphicons',
+    color: 'default'
+});
+
+
+/**
+ * @class BtSelectpicker
+ * @memberof module:plugins
+ * @descriptioon Applies Bootstrap Select on filters and operators combo-boxes.
+ * @param {object} [options]
+ * @param {string} [options.container='body']
+ * @param {string} [options.style='btn-inverse btn-xs']
+ * @param {int|string} [options.width='auto']
+ * @param {boolean} [options.showIcon=false]
+ * @throws MissingLibraryError
+ */
+QueryBuilder.define('bt-selectpicker', function(options) {
+    if (!$.fn.selectpicker || !$.fn.selectpicker.Constructor) {
+        Utils.error('MissingLibrary', 'Bootstrap Select is required to use "bt-selectpicker" plugin. Get it here: http://silviomoreto.github.io/bootstrap-select');
+    }
+
+    var Selectors = QueryBuilder.selectors;
+
+    // init selectpicker
+    this.on('afterCreateRuleFilters', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).removeClass('form-control').selectpicker(options);
+    });
+
+    this.on('afterCreateRuleOperators', function(e, rule) {
+        rule.$el.find(Selectors.rule_operator).removeClass('form-control').selectpicker(options);
+    });
+
+    // update selectpicker on change
+    this.on('afterUpdateRuleFilter', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).selectpicker('render');
+    });
+
+    this.on('afterUpdateRuleOperator', function(e, rule) {
+        rule.$el.find(Selectors.rule_operator).selectpicker('render');
+    });
+
+    this.on('beforeDeleteRule', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).selectpicker('destroy');
+        rule.$el.find(Selectors.rule_operator).selectpicker('destroy');
+    });
+}, {
+    container: 'body',
+    style: 'btn-inverse btn-xs',
+    width: 'auto',
+    showIcon: false
+});
+
+
+/**
+ * @class BtTooltipErrors
+ * @memberof module:plugins
+ * @description Applies Bootstrap Tooltips on validation error messages.
+ * @param {object} [options]
+ * @param {string} [options.placement='right']
+ * @throws MissingLibraryError
+ */
+QueryBuilder.define('bt-tooltip-errors', function(options) {
+    if (!$.fn.tooltip || !$.fn.tooltip.Constructor || !$.fn.tooltip.Constructor.prototype.fixTitle) {
+        Utils.error('MissingLibrary', 'Bootstrap Tooltip is required to use "bt-tooltip-errors" plugin. Get it here: http://getbootstrap.com');
+    }
+
+    var self = this;
+
+    // add BT Tooltip data
+    this.on('getRuleTemplate.filter getGroupTemplate.filter', function(h) {
+        var $h = $(h.value);
+        $h.find(QueryBuilder.selectors.error_container).attr('data-toggle', 'tooltip');
+        h.value = $h.prop('outerHTML');
+    });
+
+    // init/refresh tooltip when title changes
+    this.model.on('update', function(e, node, field) {
+        if (field == 'error' && self.settings.display_errors) {
+            node.$el.find(QueryBuilder.selectors.error_container).eq(0)
+                .tooltip(options)
+                .tooltip('hide')
+                .tooltip('fixTitle');
+        }
+    });
+}, {
+    placement: 'right'
+});
+
+
+/**
+ * @class ChangeFilters
+ * @memberof module:plugins
+ * @description Allows to change available filters after plugin initialization.
+ */
+
+QueryBuilder.extend(/** @lends module:plugins.ChangeFilters.prototype */ {
+    /**
+     * Change the filters of the builder
+     * @param {boolean} [deleteOrphans=false] - delete rules using old filters
+     * @param {QueryBuilder[]} filters
+     * @fires module:plugins.ChangeFilters.changer:setFilters
+     * @fires module:plugins.ChangeFilters.afterSetFilters
+     * @throws ChangeFilterError
+     */
+    setFilters: function(deleteOrphans, filters) {
+        var self = this;
+
+        if (filters === undefined) {
+            filters = deleteOrphans;
+            deleteOrphans = false;
+        }
+
+        filters = this.checkFilters(filters);
+
+        /**
+         * Modifies the filters before {@link module:plugins.ChangeFilters.setFilters} method
+         * @event changer:setFilters
+         * @memberof module:plugins.ChangeFilters
+         * @param {QueryBuilder.Filter[]} filters
+         * @returns {QueryBuilder.Filter[]}
+         */
+        filters = this.change('setFilters', filters);
+
+        var filtersIds = filters.map(function(filter) {
+            return filter.id;
+        });
+
+        // check for orphans
+        if (!deleteOrphans) {
+            (function checkOrphans(node) {
+                node.each(
+                    function(rule) {
+                        if (rule.filter && filtersIds.indexOf(rule.filter.id) === -1) {
+                            Utils.error('ChangeFilter', 'A rule is using filter "{0}"', rule.filter.id);
+                        }
+                    },
+                    checkOrphans
+                );
+            }(this.model.root));
+        }
+
+        // replace filters
+        this.filters = filters;
+
+        // apply on existing DOM
+        (function updateBuilder(node) {
+            node.each(true,
+                function(rule) {
+                    if (rule.filter && filtersIds.indexOf(rule.filter.id) === -1) {
+                        rule.drop();
+
+                        self.trigger('rulesChanged');
+                    }
+                    else {
+                        self.createRuleFilters(rule);
+
+                        rule.$el.find(QueryBuilder.selectors.rule_filter).val(rule.filter ? rule.filter.id : '-1');
+                        self.trigger('afterUpdateRuleFilter', rule);
+                    }
+                },
+                updateBuilder
+            );
+        }(this.model.root));
+
+        // update plugins
+        if (this.settings.plugins) {
+            if (this.settings.plugins['unique-filter']) {
+                this.updateDisabledFilters();
+            }
+            if (this.settings.plugins['bt-selectpicker']) {
+                this.$el.find(QueryBuilder.selectors.rule_filter).selectpicker('render');
+            }
+        }
+
+        // reset the default_filter if does not exist anymore
+        if (this.settings.default_filter) {
+            try {
+                this.getFilterById(this.settings.default_filter);
+            }
+            catch (e) {
+                this.settings.default_filter = null;
+            }
+        }
+
+        /**
+         * After {@link module:plugins.ChangeFilters.setFilters} method
+         * @event afterSetFilters
+         * @memberof module:plugins.ChangeFilters
+         * @param {QueryBuilder.Filter[]} filters
+         */
+        this.trigger('afterSetFilters', filters);
+    },
+
+    /**
+     * Adds a new filter to the builder
+     * @param {QueryBuilder.Filter|Filter[]} newFilters
+     * @param {int|string} [position=#end] - index or '#start' or '#end'
+     * @fires module:plugins.ChangeFilters.changer:setFilters
+     * @fires module:plugins.ChangeFilters.afterSetFilters
+     * @throws ChangeFilterError
+     */
+    addFilter: function(newFilters, position) {
+        if (position === undefined || position == '#end') {
+            position = this.filters.length;
+        }
+        else if (position == '#start') {
+            position = 0;
+        }
+
+        if (!$.isArray(newFilters)) {
+            newFilters = [newFilters];
+        }
+
+        var filters = $.extend(true, [], this.filters);
+
+        // numeric position
+        if (parseInt(position) == position) {
+            Array.prototype.splice.apply(filters, [position, 0].concat(newFilters));
+        }
+        else {
+            // after filter by its id
+            if (this.filters.some(function(filter, index) {
+                    if (filter.id == position) {
+                        position = index + 1;
+                        return true;
+                    }
+                })
+            ) {
+                Array.prototype.splice.apply(filters, [position, 0].concat(newFilters));
+            }
+            // defaults to end of list
+            else {
+                Array.prototype.push.apply(filters, newFilters);
+            }
+        }
+
+        this.setFilters(filters);
+    },
+
+    /**
+     * Removes a filter from the builder
+     * @param {string|string[]} filterIds
+     * @param {boolean} [deleteOrphans=false] delete rules using old filters
+     * @fires module:plugins.ChangeFilters.changer:setFilters
+     * @fires module:plugins.ChangeFilters.afterSetFilters
+     * @throws ChangeFilterError
+     */
+    removeFilter: function(filterIds, deleteOrphans) {
+        var filters = $.extend(true, [], this.filters);
+        if (typeof filterIds === 'string') {
+            filterIds = [filterIds];
+        }
+
+        filters = filters.filter(function(filter) {
+            return filterIds.indexOf(filter.id) === -1;
+        });
+
+        this.setFilters(deleteOrphans, filters);
+    }
+});
+
+
+/**
+ * @class ChosenSelectpicker
+ * @memberof module:plugins
+ * @descriptioon Applies chosen-js Select on filters and operators combo-boxes.
+ * @param {object} [options] Supports all the options for chosen
+ * @throws MissingLibraryError
+ */
+QueryBuilder.define('chosen-selectpicker', function(options) {
+
+    if (!$.fn.chosen) {
+        Utils.error('MissingLibrary', 'chosen is required to use "chosen-selectpicker" plugin. Get it here: https://github.com/harvesthq/chosen');
+    }
+
+    if (this.settings.plugins['bt-selectpicker']) {
+        Utils.error('Conflict', 'bt-selectpicker is already selected as the dropdown plugin. Please remove chosen-selectpicker from the plugin list');
+    }
+
+    var Selectors = QueryBuilder.selectors;
+
+    // init selectpicker
+    this.on('afterCreateRuleFilters', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).removeClass('form-control').chosen(options);
+    });
+
+    this.on('afterCreateRuleOperators', function(e, rule) {
+        rule.$el.find(Selectors.rule_operator).removeClass('form-control').chosen(options);
+    });
+
+    // update selectpicker on change
+    this.on('afterUpdateRuleFilter', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).trigger('chosen:updated');
+    });
+
+    this.on('afterUpdateRuleOperator', function(e, rule) {
+        rule.$el.find(Selectors.rule_operator).trigger('chosen:updated');
+    });
+
+    this.on('beforeDeleteRule', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).chosen('destroy');
+        rule.$el.find(Selectors.rule_operator).chosen('destroy');
+    });
+});
+
+
+/**
+ * @class FilterDescription
+ * @memberof module:plugins
+ * @description Provides three ways to display a description about a filter: inline, Bootsrap Popover or Bootbox.
+ * @param {object} [options]
+ * @param {string} [options.icon='glyphicon glyphicon-info-sign']
+ * @param {string} [options.mode='popover'] - inline, popover or bootbox
+ * @throws ConfigError
+ */
+QueryBuilder.define('filter-description', function(options) {
+    // INLINE
+    if (options.mode === 'inline') {
+        this.on('afterUpdateRuleFilter afterUpdateRuleOperator', function(e, rule) {
+            var $p = rule.$el.find('p.filter-description');
+            var description = e.builder.getFilterDescription(rule.filter, rule);
+
+            if (!description) {
+                $p.hide();
+            }
+            else {
+                if ($p.length === 0) {
+                    $p = $('<p class="filter-description"></p>');
+                    $p.appendTo(rule.$el);
+                }
+                else {
+                    $p.css('display', '');
+                }
+
+                $p.html('<i class="' + options.icon + '"></i> ' + description);
+            }
+        });
+    }
+    // POPOVER
+    else if (options.mode === 'popover') {
+        if (!$.fn.popover || !$.fn.popover.Constructor || !$.fn.popover.Constructor.prototype.fixTitle) {
+            Utils.error('MissingLibrary', 'Bootstrap Popover is required to use "filter-description" plugin. Get it here: http://getbootstrap.com');
+        }
+
+        this.on('afterUpdateRuleFilter afterUpdateRuleOperator', function(e, rule) {
+            var $b = rule.$el.find('button.filter-description');
+            var description = e.builder.getFilterDescription(rule.filter, rule);
+
+            if (!description) {
+                $b.hide();
+
+                if ($b.data('bs.popover')) {
+                    $b.popover('hide');
+                }
+            }
+            else {
+                if ($b.length === 0) {
+                    $b = $('<button type="button" class="btn btn-xs btn-info filter-description" data-toggle="popover"><i class="' + options.icon + '"></i></button>');
+                    $b.prependTo(rule.$el.find(QueryBuilder.selectors.rule_actions));
+
+                    $b.popover({
+                        placement: 'left',
+                        container: 'body',
+                        html: true
+                    });
+
+                    $b.on('mouseout', function() {
+                        $b.popover('hide');
+                    });
+                }
+                else {
+                    $b.css('display', '');
+                }
+
+                $b.data('bs.popover').options.content = description;
+
+                if ($b.attr('aria-describedby')) {
+                    $b.popover('show');
+                }
+            }
+        });
+    }
+    // BOOTBOX
+    else if (options.mode === 'bootbox') {
+        if (!('bootbox' in window)) {
+            Utils.error('MissingLibrary', 'Bootbox is required to use "filter-description" plugin. Get it here: http://bootboxjs.com');
+        }
+
+        this.on('afterUpdateRuleFilter afterUpdateRuleOperator', function(e, rule) {
+            var $b = rule.$el.find('button.filter-description');
+            var description = e.builder.getFilterDescription(rule.filter, rule);
+
+            if (!description) {
+                $b.hide();
+            }
+            else {
+                if ($b.length === 0) {
+                    $b = $('<button type="button" class="btn btn-xs btn-info filter-description" data-toggle="bootbox"><i class="' + options.icon + '"></i></button>');
+                    $b.prependTo(rule.$el.find(QueryBuilder.selectors.rule_actions));
+
+                    $b.on('click', function() {
+                        bootbox.alert($b.data('description'));
+                    });
+                }
+                else {
+                    $b.css('display', '');
+                }
+
+                $b.data('description', description);
+            }
+        });
+    }
+}, {
+    icon: 'glyphicon glyphicon-info-sign',
+    mode: 'popover'
+});
+
+QueryBuilder.extend(/** @lends module:plugins.FilterDescription.prototype */ {
+    /**
+     * Returns the description of a filter for a particular rule (if present)
+     * @param {object} filter
+     * @param {Rule} [rule]
+     * @returns {string}
+     * @private
+     */
+    getFilterDescription: function(filter, rule) {
+        if (!filter) {
+            return undefined;
+        }
+        else if (typeof filter.description == 'function') {
+            return filter.description.call(this, rule);
+        }
+        else {
+            return filter.description;
+        }
+    }
+});
+
+
+/**
+ * @class Invert
+ * @memberof module:plugins
+ * @description Allows to invert a rule operator, a group condition or the entire builder.
+ * @param {object} [options]
+ * @param {string} [options.icon='glyphicon glyphicon-random']
+ * @param {boolean} [options.recursive=true]
+ * @param {boolean} [options.invert_rules=true]
+ * @param {boolean} [options.display_rules_button=false]
+ * @param {boolean} [options.silent_fail=false]
+ */
+QueryBuilder.define('invert', function(options) {
+    var self = this;
+    var Selectors = QueryBuilder.selectors;
+
+    // Bind events
+    this.on('afterInit', function() {
+        self.$el.on('click.queryBuilder', '[data-invert=group]', function() {
+            var $group = $(this).closest(Selectors.group_container);
+            self.invert(self.getModel($group), options);
+        });
+
+        if (options.display_rules_button && options.invert_rules) {
+            self.$el.on('click.queryBuilder', '[data-invert=rule]', function() {
+                var $rule = $(this).closest(Selectors.rule_container);
+                self.invert(self.getModel($rule), options);
+            });
+        }
+    });
+
+    // Modify templates
+    if (!options.disable_template) {
+        this.on('getGroupTemplate.filter', function(h) {
+            var $h = $(h.value);
+            $h.find(Selectors.condition_container).after(
+                '<button type="button" class="btn btn-xs btn-default" data-invert="group">' +
+                '<i class="' + options.icon + '"></i> ' + self.translate('invert') +
+                '</button>'
+            );
+            h.value = $h.prop('outerHTML');
+        });
+
+        if (options.display_rules_button && options.invert_rules) {
+            this.on('getRuleTemplate.filter', function(h) {
+                var $h = $(h.value);
+                $h.find(Selectors.rule_actions).prepend(
+                    '<button type="button" class="btn btn-xs btn-default" data-invert="rule">' +
+                    '<i class="' + options.icon + '"></i> ' + self.translate('invert') +
+                    '</button>'
+                );
+                h.value = $h.prop('outerHTML');
+            });
+        }
+    }
+}, {
+    icon: 'glyphicon glyphicon-random',
+    recursive: true,
+    invert_rules: true,
+    display_rules_button: false,
+    silent_fail: false,
+    disable_template: false
+});
+
+QueryBuilder.defaults({
+    operatorOpposites: {
+        'equal':            'not_equal',
+        'not_equal':        'equal',
+        'in':               'not_in',
+        'not_in':           'in',
+        'less':             'greater_or_equal',
+        'less_or_equal':    'greater',
+        'greater':          'less_or_equal',
+        'greater_or_equal': 'less',
+        'between':          'not_between',
+        'not_between':      'between',
+        'begins_with':      'not_begins_with',
+        'not_begins_with':  'begins_with',
+        'contains':         'not_contains',
+        'not_contains':     'contains',
+        'ends_with':        'not_ends_with',
+        'not_ends_with':    'ends_with',
+        'is_empty':         'is_not_empty',
+        'is_not_empty':     'is_empty',
+        'is_null':          'is_not_null',
+        'is_not_null':      'is_null'
+    },
+
+    conditionOpposites: {
+        'AND': 'OR',
+        'OR': 'AND'
+    }
+});
+
+QueryBuilder.extend(/** @lends module:plugins.Invert.prototype */ {
+    /**
+     * Invert a Group, a Rule or the whole builder
+     * @param {Node} [node]
+     * @param {object} [options] {@link module:plugins.Invert}
+     * @fires module:plugins.Invert.afterInvert
+     * @throws InvertConditionError, InvertOperatorError
+     */
+    invert: function(node, options) {
+        if (!(node instanceof Node)) {
+            if (!this.model.root) return;
+            options = node;
+            node = this.model.root;
+        }
+
+        if (typeof options != 'object') options = {};
+        if (options.recursive === undefined) options.recursive = true;
+        if (options.invert_rules === undefined) options.invert_rules = true;
+        if (options.silent_fail === undefined) options.silent_fail = false;
+        if (options.trigger === undefined) options.trigger = true;
+
+        if (node instanceof Group) {
+            // invert group condition
+            if (this.settings.conditionOpposites[node.condition]) {
+                node.condition = this.settings.conditionOpposites[node.condition];
+            }
+            else if (!options.silent_fail) {
+                Utils.error('InvertCondition', 'Unknown inverse of condition "{0}"', node.condition);
+            }
+
+            // recursive call
+            if (options.recursive) {
+                var tempOpts = $.extend({}, options, { trigger: false });
+                node.each(function(rule) {
+                    if (options.invert_rules) {
+                        this.invert(rule, tempOpts);
+                    }
+                }, function(group) {
+                    this.invert(group, tempOpts);
+                }, this);
+            }
+        }
+        else if (node instanceof Rule) {
+            if (node.operator && !node.filter.no_invert) {
+                // invert rule operator
+                if (this.settings.operatorOpposites[node.operator.type]) {
+                    var invert = this.settings.operatorOpposites[node.operator.type];
+                    // check if the invert is "authorized"
+                    if (!node.filter.operators || node.filter.operators.indexOf(invert) != -1) {
+                        node.operator = this.getOperatorByType(invert);
+                    }
+                }
+                else if (!options.silent_fail) {
+                    Utils.error('InvertOperator', 'Unknown inverse of operator "{0}"', node.operator.type);
+                }
+            }
+        }
+
+        if (options.trigger) {
+            /**
+             * After {@link module:plugins.Invert.invert} method
+             * @event afterInvert
+             * @memberof module:plugins.Invert
+             * @param {Node} node - the main group or rule that has been modified
+             * @param {object} options
+             */
+            this.trigger('afterInvert', node, options);
+
+            this.trigger('rulesChanged');
+        }
+    }
+});
+
+
+/**
+ * @class MongoDbSupport
+ * @memberof module:plugins
+ * @description Allows to export rules as a MongoDB find object as well as populating the builder from a MongoDB object.
+ */
+
+QueryBuilder.defaults({
+    mongoOperators: {
+        // @formatter:off
+        equal:            function(v) { return v[0]; },
+        not_equal:        function(v) { return { '$ne': v[0] }; },
+        in:               function(v) { return { '$in': v }; },
+        not_in:           function(v) { return { '$nin': v }; },
+        less:             function(v) { return { '$lt': v[0] }; },
+        less_or_equal:    function(v) { return { '$lte': v[0] }; },
+        greater:          function(v) { return { '$gt': v[0] }; },
+        greater_or_equal: function(v) { return { '$gte': v[0] }; },
+        between:          function(v) { return { '$gte': v[0], '$lte': v[1] }; },
+        not_between:      function(v) { return { '$lt': v[0], '$gt': v[1] }; },
+        begins_with:      function(v) { return { '$regex': '^' + Utils.escapeRegExp(v[0]) }; },
+        not_begins_with:  function(v) { return { '$regex': '^(?!' + Utils.escapeRegExp(v[0]) + ')' }; },
+        contains:         function(v) { return { '$regex': Utils.escapeRegExp(v[0]) }; },
+        not_contains:     function(v) { return { '$regex': '^((?!' + Utils.escapeRegExp(v[0]) + ').)*$', '$options': 's' }; },
+        ends_with:        function(v) { return { '$regex': Utils.escapeRegExp(v[0]) + '$' }; },
+        not_ends_with:    function(v) { return { '$regex': '(?<!' + Utils.escapeRegExp(v[0]) + ')$' }; },
+        is_empty:         function(v) { return ''; },
+        is_not_empty:     function(v) { return { '$ne': '' }; },
+        is_null:          function(v) { return null; },
+        is_not_null:      function(v) { return { '$ne': null }; }
+        // @formatter:on
+    },
+
+    mongoRuleOperators: {
+        $eq: function(v) {
+            return {
+                'val': v,
+                'op': v === null ? 'is_null' : (v === '' ? 'is_empty' : 'equal')
+            };
+        },
+        $ne: function(v) {
+            v = v.$ne;
+            return {
+                'val': v,
+                'op': v === null ? 'is_not_null' : (v === '' ? 'is_not_empty' : 'not_equal')
+            };
+        },
+        $regex: function(v) {
+            v = v.$regex;
+            if (v.slice(0, 4) == '^(?!' && v.slice(-1) == ')') {
+                return { 'val': v.slice(4, -1), 'op': 'not_begins_with' };
+            }
+            else if (v.slice(0, 5) == '^((?!' && v.slice(-5) == ').)*$') {
+                return { 'val': v.slice(5, -5), 'op': 'not_contains' };
+            }
+            else if (v.slice(0, 4) == '(?<!' && v.slice(-2) == ')$') {
+                return { 'val': v.slice(4, -2), 'op': 'not_ends_with' };
+            }
+            else if (v.slice(-1) == '$') {
+                return { 'val': v.slice(0, -1), 'op': 'ends_with' };
+            }
+            else if (v.slice(0, 1) == '^') {
+                return { 'val': v.slice(1), 'op': 'begins_with' };
+            }
+            else {
+                return { 'val': v, 'op': 'contains' };
+            }
+        },
+        between: function(v) {
+            return { 'val': [v.$gte, v.$lte], 'op': 'between' };
+        },
+        not_between: function(v) {
+            return { 'val': [v.$lt, v.$gt], 'op': 'not_between' };
+        },
+        $in: function(v) {
+            return { 'val': v.$in, 'op': 'in' };
+        },
+        $nin: function(v) {
+            return { 'val': v.$nin, 'op': 'not_in' };
+        },
+        $lt: function(v) {
+            return { 'val': v.$lt, 'op': 'less' };
+        },
+        $lte: function(v) {
+            return { 'val': v.$lte, 'op': 'less_or_equal' };
+        },
+        $gt: function(v) {
+            return { 'val': v.$gt, 'op': 'greater' };
+        },
+        $gte: function(v) {
+            return { 'val': v.$gte, 'op': 'greater_or_equal' };
+        }
+    }
+});
+
+QueryBuilder.extend(/** @lends module:plugins.MongoDbSupport.prototype */ {
+    /**
+     * Returns rules as a MongoDB query
+     * @param {object} [data] - current rules by default
+     * @returns {object}
+     * @fires module:plugins.MongoDbSupport.changer:getMongoDBField
+     * @fires module:plugins.MongoDbSupport.changer:ruleToMongo
+     * @fires module:plugins.MongoDbSupport.changer:groupToMongo
+     * @throws UndefinedMongoConditionError, UndefinedMongoOperatorError
+     */
+    getMongo: function(data) {
+        data = (data === undefined) ? this.getRules() : data;
+
+        if (!data) {
+            return null;
+        }
+
+        var self = this;
+
+        return (function parse(group) {
+            if (!group.condition) {
+                group.condition = self.settings.default_condition;
+            }
+            if (['AND', 'OR'].indexOf(group.condition.toUpperCase()) === -1) {
+                Utils.error('UndefinedMongoCondition', 'Unable to build MongoDB query with condition "{0}"', group.condition);
+            }
+
+            if (!group.rules) {
+                return {};
+            }
+
+            var parts = [];
+
+            group.rules.forEach(function(rule) {
+                if (rule.rules && rule.rules.length > 0) {
+                    parts.push(parse(rule));
+                }
+                else {
+                    var mdb = self.settings.mongoOperators[rule.operator];
+                    var ope = self.getOperatorByType(rule.operator);
+
+                    if (mdb === undefined) {
+                        Utils.error('UndefinedMongoOperator', 'Unknown MongoDB operation for operator "{0}"', rule.operator);
+                    }
+
+                    if (ope.nb_inputs !== 0) {
+                        if (!(rule.value instanceof Array)) {
+                            rule.value = [rule.value];
+                        }
+                    }
+
+                    /**
+                     * Modifies the MongoDB field used by a rule
+                     * @event changer:getMongoDBField
+                     * @memberof module:plugins.MongoDbSupport
+                     * @param {string} field
+                     * @param {Rule} rule
+                     * @returns {string}
+                     */
+                    var field = self.change('getMongoDBField', rule.field, rule);
+
+                    var ruleExpression = {};
+                    ruleExpression[field] = mdb.call(self, rule.value);
+
+                    /**
+                     * Modifies the MongoDB expression generated for a rul
+                     * @event changer:ruleToMongo
+                     * @memberof module:plugins.MongoDbSupport
+                     * @param {object} expression
+                     * @param {Rule} rule
+                     * @param {*} value
+                     * @param {function} valueWrapper - function that takes the value and adds the operator
+                     * @returns {object}
+                     */
+                    parts.push(self.change('ruleToMongo', ruleExpression, rule, rule.value, mdb));
+                }
+            });
+
+            var groupExpression = {};
+            groupExpression['$' + group.condition.toLowerCase()] = parts;
+
+            /**
+             * Modifies the MongoDB expression generated for a group
+             * @event changer:groupToMongo
+             * @memberof module:plugins.MongoDbSupport
+             * @param {object} expression
+             * @param {Group} group
+             * @returns {object}
+             */
+            return self.change('groupToMongo', groupExpression, group);
+        }(data));
+    },
+
+    /**
+     * Converts a MongoDB query to rules
+     * @param {object} query
+     * @returns {object}
+     * @fires module:plugins.MongoDbSupport.changer:parseMongoNode
+     * @fires module:plugins.MongoDbSupport.changer:getMongoDBFieldID
+     * @fires module:plugins.MongoDbSupport.changer:mongoToRule
+     * @fires module:plugins.MongoDbSupport.changer:mongoToGroup
+     * @throws MongoParseError, UndefinedMongoConditionError, UndefinedMongoOperatorError
+     */
+    getRulesFromMongo: function(query) {
+        if (query === undefined || query === null) {
+            return null;
+        }
+
+        var self = this;
+
+        /**
+         * Custom parsing of a MongoDB expression, you can return a sub-part of the expression, or a well formed group or rule JSON
+         * @event changer:parseMongoNode
+         * @memberof module:plugins.MongoDbSupport
+         * @param {object} expression
+         * @returns {object} expression, rule or group
+         */
+        query = self.change('parseMongoNode', query);
+
+        // a plugin returned a group
+        if ('rules' in query && 'condition' in query) {
+            return query;
+        }
+
+        // a plugin returned a rule
+        if ('id' in query && 'operator' in query && 'value' in query) {
+            return {
+                condition: this.settings.default_condition,
+                rules: [query]
+            };
+        }
+
+        var key = self.getMongoCondition(query);
+        if (!key) {
+            Utils.error('MongoParse', 'Invalid MongoDB query format');
+        }
+
+        return (function parse(data, topKey) {
+            var rules = data[topKey];
+            var parts = [];
+
+            rules.forEach(function(data) {
+                // allow plugins to manually parse or handle special cases
+                data = self.change('parseMongoNode', data);
+
+                // a plugin returned a group
+                if ('rules' in data && 'condition' in data) {
+                    parts.push(data);
+                    return;
+                }
+
+                // a plugin returned a rule
+                if ('id' in data && 'operator' in data && 'value' in data) {
+                    parts.push(data);
+                    return;
+                }
+
+                var key = self.getMongoCondition(data);
+                if (key) {
+                    parts.push(parse(data, key));
+                }
+                else {
+                    var field = Object.keys(data)[0];
+                    var value = data[field];
+
+                    var operator = self.getMongoOperator(value);
+                    if (operator === undefined) {
+                        Utils.error('MongoParse', 'Invalid MongoDB query format');
+                    }
+
+                    var mdbrl = self.settings.mongoRuleOperators[operator];
+                    if (mdbrl === undefined) {
+                        Utils.error('UndefinedMongoOperator', 'JSON Rule operation unknown for operator "{0}"', operator);
+                    }
+
+                    var opVal = mdbrl.call(self, value);
+
+                    var id = self.getMongoDBFieldID(field, value);
+
+                    /**
+                     * Modifies the rule generated from the MongoDB expression
+                     * @event changer:mongoToRule
+                     * @memberof module:plugins.MongoDbSupport
+                     * @param {object} rule
+                     * @param {object} expression
+                     * @returns {object}
+                     */
+                    var rule = self.change('mongoToRule', {
+                        id: id,
+                        field: field,
+                        operator: opVal.op,
+                        value: opVal.val
+                    }, data);
+
+                    parts.push(rule);
+                }
+            });
+
+            /**
+             * Modifies the group generated from the MongoDB expression
+             * @event changer:mongoToGroup
+             * @memberof module:plugins.MongoDbSupport
+             * @param {object} group
+             * @param {object} expression
+             * @returns {object}
+             */
+            return self.change('mongoToGroup', {
+                condition: topKey.replace('$', '').toUpperCase(),
+                rules: parts
+            }, data);
+        }(query, key));
+    },
+
+    /**
+     * Sets rules a from MongoDB query
+     * @see module:plugins.MongoDbSupport.getRulesFromMongo
+     */
+    setRulesFromMongo: function(query) {
+        this.setRules(this.getRulesFromMongo(query));
+    },
+
+    /**
+     * Returns a filter identifier from the MongoDB field.
+     * Automatically use the only one filter with a matching field, fires a changer otherwise.
+     * @param {string} field
+     * @param {*} value
+     * @fires module:plugins.MongoDbSupport:changer:getMongoDBFieldID
+     * @returns {string}
+     * @private
+     */
+    getMongoDBFieldID: function(field, value) {
+        var matchingFilters = this.filters.filter(function(filter) {
+            return filter.field === field;
+        });
+
+        var id;
+        if (matchingFilters.length === 1) {
+            id = matchingFilters[0].id;
+        }
+        else {
+            /**
+             * Returns a filter identifier from the MongoDB field
+             * @event changer:getMongoDBFieldID
+             * @memberof module:plugins.MongoDbSupport
+             * @param {string} field
+             * @param {*} value
+             * @returns {string}
+             */
+            id = this.change('getMongoDBFieldID', field, value);
+        }
+
+        return id;
+    },
+
+    /**
+     * Finds which operator is used in a MongoDB sub-object
+     * @param {*} data
+     * @returns {string|undefined}
+     * @private
+     */
+    getMongoOperator: function(data) {
+        if (data !== null && typeof data === 'object') {
+            if (data.$gte !== undefined && data.$lte !== undefined) {
+                return 'between';
+            }
+            if (data.$lt !== undefined && data.$gt !== undefined) {
+                return 'not_between';
+            }
+
+            var knownKeys = Object.keys(data).filter(function(key) {
+                return !!this.settings.mongoRuleOperators[key];
+            }.bind(this));
+
+            if (knownKeys.length === 1) {
+                return knownKeys[0];
+            }
+        }
+        else {
+            return '$eq';
+        }
+    },
+
+
+    /**
+     * Returns the key corresponding to "$or" or "$and"
+     * @param {object} data
+     * @returns {string|undefined}
+     * @private
+     */
+    getMongoCondition: function(data) {
+        var keys = Object.keys(data);
+
+        for (var i = 0, l = keys.length; i < l; i++) {
+            if (keys[i].toLowerCase() === '$or' || keys[i].toLowerCase() === '$and') {
+                return keys[i];
+            }
+        }
+    }
+});
+
+
+/**
+ * @class NotGroup
+ * @memberof module:plugins
+ * @description Adds a "Not" checkbox in front of group conditions.
+ * @param {object} [options]
+ * @param {string} [options.icon_checked='glyphicon glyphicon-checked']
+ * @param {string} [options.icon_unchecked='glyphicon glyphicon-unchecked']
+ */
+QueryBuilder.define('not-group', function(options) {
+    var self = this;
+
+    // Bind events
+    this.on('afterInit', function() {
+        self.$el.on('click.queryBuilder', '[data-not=group]', function() {
+            var $group = $(this).closest(QueryBuilder.selectors.group_container);
+            var group = self.getModel($group);
+            group.not = !group.not;
+        });
+
+        self.model.on('update', function(e, node, field) {
+            if (node instanceof Group && field === 'not') {
+                self.updateGroupNot(node);
+            }
+        });
+    });
+
+    // Init "not" property
+    this.on('afterAddGroup', function(e, group) {
+        group.__.not = false;
+    });
+
+    // Modify templates
+    if (!options.disable_template) {
+        this.on('getGroupTemplate.filter', function(h) {
+            var $h = $(h.value);
+            $h.find(QueryBuilder.selectors.condition_container).prepend(
+                '<button type="button" class="btn btn-xs btn-default" data-not="group">' +
+                '<i class="' + options.icon_unchecked + '"></i> ' + self.translate('NOT') +
+                '</button>'
+            );
+            h.value = $h.prop('outerHTML');
+        });
+    }
+
+    // Export "not" to JSON
+    this.on('groupToJson.filter', function(e, group) {
+        e.value.not = group.not;
+    });
+
+    // Read "not" from JSON
+    this.on('jsonToGroup.filter', function(e, json) {
+        e.value.not = !!json.not;
+    });
+
+    // Export "not" to SQL
+    this.on('groupToSQL.filter', function(e, group) {
+        if (group.not) {
+            e.value = 'NOT ( ' + e.value + ' )';
+        }
+    });
+
+    // Parse "NOT" function from sqlparser
+    this.on('parseSQLNode.filter', function(e) {
+        if (e.value.name && e.value.name.toUpperCase() == 'NOT') {
+            e.value = e.value.arguments.value[0];
+
+            // if the there is no sub-group, create one
+            if (['AND', 'OR'].indexOf(e.value.operation.toUpperCase()) === -1) {
+                e.value = new SQLParser.nodes.Op(
+                    self.settings.default_condition,
+                    e.value,
+                    null
+                );
+            }
+
+            e.value.not = true;
+        }
+    });
+
+    // Request to create sub-group if the "not" flag is set
+    this.on('sqlGroupsDistinct.filter', function(e, group, data, i) {
+        if (data.not && i > 0) {
+            e.value = true;
+        }
+    });
+
+    // Read "not" from parsed SQL
+    this.on('sqlToGroup.filter', function(e, data) {
+        e.value.not = !!data.not;
+    });
+
+    // Export "not" to Mongo
+    this.on('groupToMongo.filter', function(e, group) {
+        var key = '$' + group.condition.toLowerCase();
+        if (group.not && e.value[key]) {
+            e.value = { '$nor': [e.value] };
+        }
+    });
+
+    // Parse "$nor" operator from Mongo
+    this.on('parseMongoNode.filter', function(e) {
+        var keys = Object.keys(e.value);
+
+        if (keys[0] == '$nor') {
+            e.value = e.value[keys[0]][0];
+            e.value.not = true;
+        }
+    });
+
+    // Read "not" from parsed Mongo
+    this.on('mongoToGroup.filter', function(e, data) {
+        e.value.not = !!data.not;
+    });
+}, {
+    icon_unchecked: 'glyphicon glyphicon-unchecked',
+    icon_checked: 'glyphicon glyphicon-check',
+    disable_template: false
+});
+
+/**
+ * From {@link module:plugins.NotGroup}
+ * @name not
+ * @member {boolean}
+ * @memberof Group
+ * @instance
+ */
+Utils.defineModelProperties(Group, ['not']);
+
+QueryBuilder.selectors.group_not = QueryBuilder.selectors.group_header + ' [data-not=group]';
+
+QueryBuilder.extend(/** @lends module:plugins.NotGroup.prototype */ {
+    /**
+     * Performs actions when a group's not changes
+     * @param {Group} group
+     * @fires module:plugins.NotGroup.afterUpdateGroupNot
+     * @private
+     */
+    updateGroupNot: function(group) {
+        var options = this.plugins['not-group'];
+        group.$el.find('>' + QueryBuilder.selectors.group_not)
+            .toggleClass('active', group.not)
+            .find('i').attr('class', group.not ? options.icon_checked : options.icon_unchecked);
+
+        /**
+         * After the group's not flag has been modified
+         * @event afterUpdateGroupNot
+         * @memberof module:plugins.NotGroup
+         * @param {Group} group
+         */
+        this.trigger('afterUpdateGroupNot', group);
+
+        this.trigger('rulesChanged');
+    }
+});
+
+
+/**
+ * @class Sortable
+ * @memberof module:plugins
+ * @description Enables drag & drop sort of rules.
+ * @param {object} [options]
+ * @param {boolean} [options.inherit_no_drop=true]
+ * @param {boolean} [options.inherit_no_sortable=true]
+ * @param {string} [options.icon='glyphicon glyphicon-sort']
+ * @throws MissingLibraryError, ConfigError
+ */
+QueryBuilder.define('sortable', function(options) {
+    if (!('interact' in window)) {
+        Utils.error('MissingLibrary', 'interact.js is required to use "sortable" plugin. Get it here: http://interactjs.io');
+    }
+
+    if (options.default_no_sortable !== undefined) {
+        Utils.error(false, 'Config', 'Sortable plugin : "default_no_sortable" options is deprecated, use standard "default_rule_flags" and "default_group_flags" instead');
+        this.settings.default_rule_flags.no_sortable = this.settings.default_group_flags.no_sortable = options.default_no_sortable;
+    }
+
+    // recompute drop-zones during drag (when a rule is hidden)
+    interact.dynamicDrop(true);
+
+    // set move threshold to 10px
+    interact.pointerMoveTolerance(10);
+
+    var placeholder;
+    var ghost;
+    var src;
+    var moved;
+
+    // Init drag and drop
+    this.on('afterAddRule afterAddGroup', function(e, node) {
+        if (node == placeholder) {
+            return;
+        }
+
+        var self = e.builder;
+
+        // Inherit flags
+        if (options.inherit_no_sortable && node.parent && node.parent.flags.no_sortable) {
+            node.flags.no_sortable = true;
+        }
+        if (options.inherit_no_drop && node.parent && node.parent.flags.no_drop) {
+            node.flags.no_drop = true;
+        }
+
+        // Configure drag
+        if (!node.flags.no_sortable) {
+            interact(node.$el[0])
+                .draggable({
+                    allowFrom: QueryBuilder.selectors.drag_handle,
+                    onstart: function(event) {
+                        moved = false;
+
+                        // get model of dragged element
+                        src = self.getModel(event.target);
+
+                        // create ghost
+                        ghost = src.$el.clone()
+                            .appendTo(src.$el.parent())
+                            .width(src.$el.outerWidth())
+                            .addClass('dragging');
+
+                        // create drop placeholder
+                        var ph = $('<div class="rule-placeholder">&nbsp;</div>')
+                            .height(src.$el.outerHeight());
+
+                        placeholder = src.parent.addRule(ph, src.getPos());
+
+                        // hide dragged element
+                        src.$el.hide();
+                    },
+                    onmove: function(event) {
+                        // make the ghost follow the cursor
+                        ghost[0].style.top = event.clientY - 15 + 'px';
+                        ghost[0].style.left = event.clientX - 15 + 'px';
+                    },
+                    onend: function(event) {
+                        // starting from Interact 1.3.3, onend is called before ondrop
+                        if (event.dropzone) {
+                            moveSortableToTarget(src, $(event.relatedTarget), self);
+                            moved = true;
+                        }
+
+                        // remove ghost
+                        ghost.remove();
+                        ghost = undefined;
+
+                        // remove placeholder
+                        placeholder.drop();
+                        placeholder = undefined;
+
+                        // show element
+                        src.$el.css('display', '');
+
+                        /**
+                         * After a node has been moved with {@link module:plugins.Sortable}
+                         * @event afterMove
+                         * @memberof module:plugins.Sortable
+                         * @param {Node} node
+                         */
+                        self.trigger('afterMove', src);
+
+                        self.trigger('rulesChanged');
+                    }
+                });
+        }
+
+        if (!node.flags.no_drop) {
+            //  Configure drop on groups and rules
+            interact(node.$el[0])
+                .dropzone({
+                    accept: QueryBuilder.selectors.rule_and_group_containers,
+                    ondragenter: function(event) {
+                        moveSortableToTarget(placeholder, $(event.target), self);
+                    },
+                    ondrop: function(event) {
+                        if (!moved) {
+                            moveSortableToTarget(src, $(event.target), self);
+                        }
+                    }
+                });
+
+            // Configure drop on group headers
+            if (node instanceof Group) {
+                interact(node.$el.find(QueryBuilder.selectors.group_header)[0])
+                    .dropzone({
+                        accept: QueryBuilder.selectors.rule_and_group_containers,
+                        ondragenter: function(event) {
+                            moveSortableToTarget(placeholder, $(event.target), self);
+                        },
+                        ondrop: function(event) {
+                            if (!moved) {
+                                moveSortableToTarget(src, $(event.target), self);
+                            }
+                        }
+                    });
+            }
+        }
+    });
+
+    // Detach interactables
+    this.on('beforeDeleteRule beforeDeleteGroup', function(e, node) {
+        if (!e.isDefaultPrevented()) {
+            interact(node.$el[0]).unset();
+
+            if (node instanceof Group) {
+                interact(node.$el.find(QueryBuilder.selectors.group_header)[0]).unset();
+            }
+        }
+    });
+
+    // Remove drag handle from non-sortable items
+    this.on('afterApplyRuleFlags afterApplyGroupFlags', function(e, node) {
+        if (node.flags.no_sortable) {
+            node.$el.find('.drag-handle').remove();
+        }
+    });
+
+    // Modify templates
+    if (!options.disable_template) {
+        this.on('getGroupTemplate.filter', function(h, level) {
+            if (level > 1) {
+                var $h = $(h.value);
+                $h.find(QueryBuilder.selectors.condition_container).after('<div class="drag-handle"><i class="' + options.icon + '"></i></div>');
+                h.value = $h.prop('outerHTML');
+            }
+        });
+
+        this.on('getRuleTemplate.filter', function(h) {
+            var $h = $(h.value);
+            $h.find(QueryBuilder.selectors.rule_header).after('<div class="drag-handle"><i class="' + options.icon + '"></i></div>');
+            h.value = $h.prop('outerHTML');
+        });
+    }
+}, {
+    inherit_no_sortable: true,
+    inherit_no_drop: true,
+    icon: 'glyphicon glyphicon-sort',
+    disable_template: false
+});
+
+QueryBuilder.selectors.rule_and_group_containers = QueryBuilder.selectors.rule_container + ', ' + QueryBuilder.selectors.group_container;
+QueryBuilder.selectors.drag_handle = '.drag-handle';
+
+QueryBuilder.defaults({
+    default_rule_flags: {
+        no_sortable: false,
+        no_drop: false
+    },
+    default_group_flags: {
+        no_sortable: false,
+        no_drop: false
+    }
+});
+
+/**
+ * Moves an element (placeholder or actual object) depending on active target
+ * @memberof module:plugins.Sortable
+ * @param {Node} node
+ * @param {jQuery} target
+ * @param {QueryBuilder} [builder]
+ * @private
+ */
+function moveSortableToTarget(node, target, builder) {
+    var parent, method;
+    var Selectors = QueryBuilder.selectors;
+
+    // on rule
+    parent = target.closest(Selectors.rule_container);
+    if (parent.length) {
+        method = 'moveAfter';
+    }
+
+    // on group header
+    if (!method) {
+        parent = target.closest(Selectors.group_header);
+        if (parent.length) {
+            parent = target.closest(Selectors.group_container);
+            method = 'moveAtBegin';
+        }
+    }
+
+    // on group
+    if (!method) {
+        parent = target.closest(Selectors.group_container);
+        if (parent.length) {
+            method = 'moveAtEnd';
+        }
+    }
+
+    if (method) {
+        node[method](builder.getModel(parent));
+
+        // refresh radio value
+        if (builder && node instanceof Rule) {
+            builder.setRuleInputValue(node, node.value);
+        }
+    }
+}
+
+
+/**
+ * @class SqlSupport
+ * @memberof module:plugins
+ * @description Allows to export rules as a SQL WHERE statement as well as populating the builder from an SQL query.
+ * @param {object} [options]
+ * @param {boolean} [options.boolean_as_integer=true] - `true` to convert boolean values to integer in the SQL output
+ */
+QueryBuilder.define('sql-support', function(options) {
+
+}, {
+    boolean_as_integer: true
+});
+
+QueryBuilder.defaults({
+    // operators for internal -> SQL conversion
+    sqlOperators: {
+        equal: { op: '= ?' },
+        not_equal: { op: '!= ?' },
+        in: { op: 'IN(?)', sep: ', ' },
+        not_in: { op: 'NOT IN(?)', sep: ', ' },
+        less: { op: '< ?' },
+        less_or_equal: { op: '<= ?' },
+        greater: { op: '> ?' },
+        greater_or_equal: { op: '>= ?' },
+        between: { op: 'BETWEEN ?', sep: ' AND ' },
+        not_between: { op: 'NOT BETWEEN ?', sep: ' AND ' },
+        begins_with: { op: 'LIKE(?)', mod: '{0}%' },
+        not_begins_with: { op: 'NOT LIKE(?)', mod: '{0}%' },
+        contains: { op: 'LIKE(?)', mod: '%{0}%' },
+        not_contains: { op: 'NOT LIKE(?)', mod: '%{0}%' },
+        ends_with: { op: 'LIKE(?)', mod: '%{0}' },
+        not_ends_with: { op: 'NOT LIKE(?)', mod: '%{0}' },
+        is_empty: { op: '= \'\'' },
+        is_not_empty: { op: '!= \'\'' },
+        is_null: { op: 'IS NULL' },
+        is_not_null: { op: 'IS NOT NULL' }
+    },
+
+    // operators for SQL -> internal conversion
+    sqlRuleOperator: {
+        '=': function(v) {
+            return {
+                val: v,
+                op: v === '' ? 'is_empty' : 'equal'
+            };
+        },
+        '!=': function(v) {
+            return {
+                val: v,
+                op: v === '' ? 'is_not_empty' : 'not_equal'
+            };
+        },
+        'LIKE': function(v) {
+            if (v.slice(0, 1) == '%' && v.slice(-1) == '%') {
+                return {
+                    val: v.slice(1, -1),
+                    op: 'contains'
+                };
+            }
+            else if (v.slice(0, 1) == '%') {
+                return {
+                    val: v.slice(1),
+                    op: 'ends_with'
+                };
+            }
+            else if (v.slice(-1) == '%') {
+                return {
+                    val: v.slice(0, -1),
+                    op: 'begins_with'
+                };
+            }
+            else {
+                Utils.error('SQLParse', 'Invalid value for LIKE operator "{0}"', v);
+            }
+        },
+        'NOT LIKE': function(v) {
+            if (v.slice(0, 1) == '%' && v.slice(-1) == '%') {
+                return {
+                    val: v.slice(1, -1),
+                    op: 'not_contains'
+                };
+            }
+            else if (v.slice(0, 1) == '%') {
+                return {
+                    val: v.slice(1),
+                    op: 'not_ends_with'
+                };
+            }
+            else if (v.slice(-1) == '%') {
+                return {
+                    val: v.slice(0, -1),
+                    op: 'not_begins_with'
+                };
+            }
+            else {
+                Utils.error('SQLParse', 'Invalid value for NOT LIKE operator "{0}"', v);
+            }
+        },
+        'IN': function(v) {
+            return { val: v, op: 'in' };
+        },
+        'NOT IN': function(v) {
+            return { val: v, op: 'not_in' };
+        },
+        '<': function(v) {
+            return { val: v, op: 'less' };
+        },
+        '<=': function(v) {
+            return { val: v, op: 'less_or_equal' };
+        },
+        '>': function(v) {
+            return { val: v, op: 'greater' };
+        },
+        '>=': function(v) {
+            return { val: v, op: 'greater_or_equal' };
+        },
+        'BETWEEN': function(v) {
+            return { val: v, op: 'between' };
+        },
+        'NOT BETWEEN': function(v) {
+            return { val: v, op: 'not_between' };
+        },
+        'IS': function(v) {
+            if (v !== null) {
+                Utils.error('SQLParse', 'Invalid value for IS operator');
+            }
+            return { val: null, op: 'is_null' };
+        },
+        'IS NOT': function(v) {
+            if (v !== null) {
+                Utils.error('SQLParse', 'Invalid value for IS operator');
+            }
+            return { val: null, op: 'is_not_null' };
+        }
+    },
+
+    // statements for internal -> SQL conversion
+    sqlStatements: {
+        'question_mark': function() {
+            var params = [];
+            return {
+                add: function(rule, value) {
+                    params.push(value);
+                    return '?';
+                },
+                run: function() {
+                    return params;
+                }
+            };
+        },
+
+        'numbered': function(char) {
+            if (!char || char.length > 1) char = '$';
+            var index = 0;
+            var params = [];
+            return {
+                add: function(rule, value) {
+                    params.push(value);
+                    index++;
+                    return char + index;
+                },
+                run: function() {
+                    return params;
+                }
+            };
+        },
+
+        'named': function(char) {
+            if (!char || char.length > 1) char = ':';
+            var indexes = {};
+            var params = {};
+            return {
+                add: function(rule, value) {
+                    if (!indexes[rule.field]) indexes[rule.field] = 1;
+                    var key = rule.field + '_' + (indexes[rule.field]++);
+                    params[key] = value;
+                    return char + key;
+                },
+                run: function() {
+                    return params;
+                }
+            };
+        }
+    },
+
+    // statements for SQL -> internal conversion
+    sqlRuleStatement: {
+        'question_mark': function(values) {
+            var index = 0;
+            return {
+                parse: function(v) {
+                    return v == '?' ? values[index++] : v;
+                },
+                esc: function(sql) {
+                    return sql.replace(/\?/g, '\'?\'');
+                }
+            };
+        },
+
+        'numbered': function(values, char) {
+            if (!char || char.length > 1) char = '$';
+            var regex1 = new RegExp('^\\' + char + '[0-9]+$');
+            var regex2 = new RegExp('\\' + char + '([0-9]+)', 'g');
+            return {
+                parse: function(v) {
+                    return regex1.test(v) ? values[v.slice(1) - 1] : v;
+                },
+                esc: function(sql) {
+                    return sql.replace(regex2, '\'' + (char == '$' ? '$$' : char) + '$1\'');
+                }
+            };
+        },
+
+        'named': function(values, char) {
+            if (!char || char.length > 1) char = ':';
+            var regex1 = new RegExp('^\\' + char);
+            var regex2 = new RegExp('\\' + char + '(' + Object.keys(values).join('|') + ')', 'g');
+            return {
+                parse: function(v) {
+                    return regex1.test(v) ? values[v.slice(1)] : v;
+                },
+                esc: function(sql) {
+                    return sql.replace(regex2, '\'' + (char == '$' ? '$$' : char) + '$1\'');
+                }
+            };
+        }
+    }
+});
+
+/**
+ * @typedef {object} SqlQuery
+ * @memberof module:plugins.SqlSupport
+ * @property {string} sql
+ * @property {object} params
+ */
+
+QueryBuilder.extend(/** @lends module:plugins.SqlSupport.prototype */ {
+    /**
+     * Returns rules as a SQL query
+     * @param {boolean|string} [stmt] - use prepared statements: false, 'question_mark', 'numbered', 'numbered(@)', 'named', 'named(@)'
+     * @param {boolean} [nl=false] output with new lines
+     * @param {object} [data] - current rules by default
+     * @returns {module:plugins.SqlSupport.SqlQuery}
+     * @fires module:plugins.SqlSupport.changer:getSQLField
+     * @fires module:plugins.SqlSupport.changer:ruleToSQL
+     * @fires module:plugins.SqlSupport.changer:groupToSQL
+     * @throws UndefinedSQLConditionError, UndefinedSQLOperatorError
+     */
+    getSQL: function(stmt, nl, data) {
+        data = (data === undefined) ? this.getRules() : data;
+
+        if (!data) {
+            return null;
+        }
+
+        nl = !!nl ? '\n' : ' ';
+        var boolean_as_integer = this.getPluginOptions('sql-support', 'boolean_as_integer');
+
+        if (stmt === true) {
+            stmt = 'question_mark';
+        }
+        if (typeof stmt == 'string') {
+            var config = getStmtConfig(stmt);
+            stmt = this.settings.sqlStatements[config[1]](config[2]);
+        }
+
+        var self = this;
+
+        var sql = (function parse(group) {
+            if (!group.condition) {
+                group.condition = self.settings.default_condition;
+            }
+            if (['AND', 'OR'].indexOf(group.condition.toUpperCase()) === -1) {
+                Utils.error('UndefinedSQLCondition', 'Unable to build SQL query with condition "{0}"', group.condition);
+            }
+
+            if (!group.rules) {
+                return '';
+            }
+
+            var parts = [];
+
+            group.rules.forEach(function(rule) {
+                if (rule.rules && rule.rules.length > 0) {
+                    parts.push('(' + nl + parse(rule) + nl + ')' + nl);
+                }
+                else {
+                    var sql = self.settings.sqlOperators[rule.operator];
+                    var ope = self.getOperatorByType(rule.operator);
+                    var value = '';
+
+                    if (sql === undefined) {
+                        Utils.error('UndefinedSQLOperator', 'Unknown SQL operation for operator "{0}"', rule.operator);
+                    }
+
+                    if (ope.nb_inputs !== 0) {
+                        if (!(rule.value instanceof Array)) {
+                            rule.value = [rule.value];
+                        }
+
+                        rule.value.forEach(function(v, i) {
+                            if (i > 0) {
+                                value += sql.sep;
+                            }
+
+                            if (rule.type == 'boolean' && boolean_as_integer) {
+                                v = v ? 1 : 0;
+                            }
+                            else if (!stmt && rule.type !== 'integer' && rule.type !== 'double' && rule.type !== 'boolean') {
+                                v = Utils.escapeString(v);
+                            }
+
+                            if (sql.mod) {
+                                v = Utils.fmt(sql.mod, v);
+                            }
+
+                            if (stmt) {
+                                value += stmt.add(rule, v);
+                            }
+                            else {
+                                if (typeof v == 'string') {
+                                    v = '\'' + v + '\'';
+                                }
+
+                                value += v;
+                            }
+                        });
+                    }
+
+                    var sqlFn = function(v) {
+                        return sql.op.replace('?', function() {
+                            return v;
+                        });
+                    };
+
+                    /**
+                     * Modifies the SQL field used by a rule
+                     * @event changer:getSQLField
+                     * @memberof module:plugins.SqlSupport
+                     * @param {string} field
+                     * @param {Rule} rule
+                     * @returns {string}
+                     */
+                    var field = self.change('getSQLField', rule.field, rule);
+
+                    var ruleExpression = field + ' ' + sqlFn(value);
+
+                    /**
+                     * Modifies the SQL generated for a rule
+                     * @event changer:ruleToSQL
+                     * @memberof module:plugins.SqlSupport
+                     * @param {string} expression
+                     * @param {Rule} rule
+                     * @param {*} value
+                     * @param {function} valueWrapper - function that takes the value and adds the operator
+                     * @returns {string}
+                     */
+                    parts.push(self.change('ruleToSQL', ruleExpression, rule, value, sqlFn));
+                }
+            });
+
+            var groupExpression = parts.join(' ' + group.condition + nl);
+
+            /**
+             * Modifies the SQL generated for a group
+             * @event changer:groupToSQL
+             * @memberof module:plugins.SqlSupport
+             * @param {string} expression
+             * @param {Group} group
+             * @returns {string}
+             */
+            return self.change('groupToSQL', groupExpression, group);
+        }(data));
+
+        if (stmt) {
+            return {
+                sql: sql,
+                params: stmt.run()
+            };
+        }
+        else {
+            return {
+                sql: sql
+            };
+        }
+    },
+
+    /**
+     * Convert a SQL query to rules
+     * @param {string|module:plugins.SqlSupport.SqlQuery} query
+     * @param {boolean|string} stmt
+     * @returns {object}
+     * @fires module:plugins.SqlSupport.changer:parseSQLNode
+     * @fires module:plugins.SqlSupport.changer:getSQLFieldID
+     * @fires module:plugins.SqlSupport.changer:sqlToRule
+     * @fires module:plugins.SqlSupport.changer:sqlToGroup
+     * @throws MissingLibraryError, SQLParseError, UndefinedSQLOperatorError
+     */
+    getRulesFromSQL: function(query, stmt) {
+        if (!('SQLParser' in window)) {
+            Utils.error('MissingLibrary', 'SQLParser is required to parse SQL queries. Get it here https://github.com/mistic100/sql-parser');
+        }
+
+        var self = this;
+
+        if (typeof query == 'string') {
+            query = { sql: query };
+        }
+
+        if (stmt === true) stmt = 'question_mark';
+        if (typeof stmt == 'string') {
+            var config = getStmtConfig(stmt);
+            stmt = this.settings.sqlRuleStatement[config[1]](query.params, config[2]);
+        }
+
+        if (stmt) {
+            query.sql = stmt.esc(query.sql);
+        }
+
+        if (query.sql.toUpperCase().indexOf('SELECT') !== 0) {
+            query.sql = 'SELECT * FROM table WHERE ' + query.sql;
+        }
+
+        var parsed = SQLParser.parse(query.sql);
+
+        if (!parsed.where) {
+            Utils.error('SQLParse', 'No WHERE clause found');
+        }
+
+        /**
+         * Custom parsing of an AST node generated by SQLParser, you can return a sub-part of the tree, or a well formed group or rule JSON
+         * @event changer:parseSQLNode
+         * @memberof module:plugins.SqlSupport
+         * @param {object} AST node
+         * @returns {object} tree, rule or group
+         */
+        var data = self.change('parseSQLNode', parsed.where.conditions);
+
+        // a plugin returned a group
+        if ('rules' in data && 'condition' in data) {
+            return data;
+        }
+
+        // a plugin returned a rule
+        if ('id' in data && 'operator' in data && 'value' in data) {
+            return {
+                condition: this.settings.default_condition,
+                rules: [data]
+            };
+        }
+
+        // create root group
+        var out = self.change('sqlToGroup', {
+            condition: this.settings.default_condition,
+            rules: []
+        }, data);
+
+        // keep track of current group
+        var curr = out;
+
+        (function flatten(data, i) {
+            if (data === null) {
+                return;
+            }
+
+            // allow plugins to manually parse or handle special cases
+            data = self.change('parseSQLNode', data);
+
+            // a plugin returned a group
+            if ('rules' in data && 'condition' in data) {
+                curr.rules.push(data);
+                return;
+            }
+
+            // a plugin returned a rule
+            if ('id' in data && 'operator' in data && 'value' in data) {
+                curr.rules.push(data);
+                return;
+            }
+
+            // data must be a SQL parser node
+            if (!('left' in data) || !('right' in data) || !('operation' in data)) {
+                Utils.error('SQLParse', 'Unable to parse WHERE clause');
+            }
+
+            // it's a node
+            if (['AND', 'OR'].indexOf(data.operation.toUpperCase()) !== -1) {
+                // create a sub-group if the condition is not the same and it's not the first level
+
+                /**
+                 * Given an existing group and an AST node, determines if a sub-group must be created
+                 * @event changer:sqlGroupsDistinct
+                 * @memberof module:plugins.SqlSupport
+                 * @param {boolean} create - true by default if the group condition is different
+                 * @param {object} group
+                 * @param {object} AST
+                 * @param {int} current group level
+                 * @returns {boolean}
+                 */
+                var createGroup = self.change('sqlGroupsDistinct', i > 0 && curr.condition != data.operation.toUpperCase(), curr, data, i);
+
+                if (createGroup) {
+                    /**
+                     * Modifies the group generated from the SQL expression (this is called before the group is filled with rules)
+                     * @event changer:sqlToGroup
+                     * @memberof module:plugins.SqlSupport
+                     * @param {object} group
+                     * @param {object} AST
+                     * @returns {object}
+                     */
+                    var group = self.change('sqlToGroup', {
+                        condition: self.settings.default_condition,
+                        rules: []
+                    }, data);
+
+                    curr.rules.push(group);
+                    curr = group;
+                }
+
+                curr.condition = data.operation.toUpperCase();
+                i++;
+
+                // some magic !
+                var next = curr;
+                flatten(data.left, i);
+
+                curr = next;
+                flatten(data.right, i);
+            }
+            // it's a leaf
+            else {
+                if ($.isPlainObject(data.right.value)) {
+                    Utils.error('SQLParse', 'Value format not supported for {0}.', data.left.value);
+                }
+
+                // convert array
+                var value;
+                if ($.isArray(data.right.value)) {
+                    value = data.right.value.map(function(v) {
+                        return v.value;
+                    });
+                }
+                else {
+                    value = data.right.value;
+                }
+
+                // get actual values
+                if (stmt) {
+                    if ($.isArray(value)) {
+                        value = value.map(stmt.parse);
+                    }
+                    else {
+                        value = stmt.parse(value);
+                    }
+                }
+
+                // convert operator
+                var operator = data.operation.toUpperCase();
+                if (operator == '<>') {
+                    operator = '!=';
+                }
+
+                var sqlrl = self.settings.sqlRuleOperator[operator];
+                if (sqlrl === undefined) {
+                    Utils.error('UndefinedSQLOperator', 'Invalid SQL operation "{0}".', data.operation);
+                }
+
+                var opVal = sqlrl.call(this, value, data.operation);
+
+                // find field name
+                var field;
+                if ('values' in data.left) {
+                    field = data.left.values.join('.');
+                }
+                else if ('value' in data.left) {
+                    field = data.left.value;
+                }
+                else {
+                    Utils.error('SQLParse', 'Cannot find field name in {0}', JSON.stringify(data.left));
+                }
+
+                var id = self.getSQLFieldID(field, value);
+
+                /**
+                 * Modifies the rule generated from the SQL expression
+                 * @event changer:sqlToRule
+                 * @memberof module:plugins.SqlSupport
+                 * @param {object} rule
+                 * @param {object} AST
+                 * @returns {object}
+                 */
+                var rule = self.change('sqlToRule', {
+                    id: id,
+                    field: field,
+                    operator: opVal.op,
+                    value: opVal.val
+                }, data);
+
+                curr.rules.push(rule);
+            }
+        }(data, 0));
+
+        return out;
+    },
+
+    /**
+     * Sets the builder's rules from a SQL query
+     * @see module:plugins.SqlSupport.getRulesFromSQL
+     */
+    setRulesFromSQL: function(query, stmt) {
+        this.setRules(this.getRulesFromSQL(query, stmt));
+    },
+
+    /**
+     * Returns a filter identifier from the SQL field.
+     * Automatically use the only one filter with a matching field, fires a changer otherwise.
+     * @param {string} field
+     * @param {*} value
+     * @fires module:plugins.SqlSupport:changer:getSQLFieldID
+     * @returns {string}
+     * @private
+     */
+    getSQLFieldID: function(field, value) {
+        var matchingFilters = this.filters.filter(function(filter) {
+            return filter.field.toLowerCase() === field.toLowerCase();
+        });
+
+        var id;
+        if (matchingFilters.length === 1) {
+            id = matchingFilters[0].id;
+        }
+        else {
+            /**
+             * Returns a filter identifier from the SQL field
+             * @event changer:getSQLFieldID
+             * @memberof module:plugins.SqlSupport
+             * @param {string} field
+             * @param {*} value
+             * @returns {string}
+             */
+            id = this.change('getSQLFieldID', field, value);
+        }
+
+        return id;
+    }
+});
+
+/**
+ * Parses the statement configuration
+ * @memberof module:plugins.SqlSupport
+ * @param {string} stmt
+ * @returns {Array} null, mode, option
+ * @private
+ */
+function getStmtConfig(stmt) {
+    var config = stmt.match(/(question_mark|numbered|named)(?:\((.)\))?/);
+    if (!config) config = [null, 'question_mark', undefined];
+    return config;
+}
+
+
+/**
+ * @class UniqueFilter
+ * @memberof module:plugins
+ * @description Allows to define some filters as "unique": ie which can be used for only one rule, globally or in the same group.
+ */
+QueryBuilder.define('unique-filter', function() {
+    this.status.used_filters = {};
+
+    this.on('afterUpdateRuleFilter', this.updateDisabledFilters);
+    this.on('afterDeleteRule', this.updateDisabledFilters);
+    this.on('afterCreateRuleFilters', this.applyDisabledFilters);
+    this.on('afterReset', this.clearDisabledFilters);
+    this.on('afterClear', this.clearDisabledFilters);
+
+    // Ensure that the default filter is not already used if unique
+    this.on('getDefaultFilter.filter', function(e, model) {
+        var self = e.builder;
+
+        self.updateDisabledFilters();
+
+        if (e.value.id in self.status.used_filters) {
+            var found = self.filters.some(function(filter) {
+                if (!(filter.id in self.status.used_filters) || self.status.used_filters[filter.id].length > 0 && self.status.used_filters[filter.id].indexOf(model.parent) === -1) {
+                    e.value = filter;
+                    return true;
+                }
+            });
+
+            if (!found) {
+                Utils.error(false, 'UniqueFilter', 'No more non-unique filters available');
+                e.value = undefined;
+            }
+        }
+    });
+});
+
+QueryBuilder.extend(/** @lends module:plugins.UniqueFilter.prototype */ {
+    /**
+     * Updates the list of used filters
+     * @param {$.Event} [e]
+     * @private
+     */
+    updateDisabledFilters: function(e) {
+        var self = e ? e.builder : this;
+
+        self.status.used_filters = {};
+
+        if (!self.model) {
+            return;
+        }
+
+        // get used filters
+        (function walk(group) {
+            group.each(function(rule) {
+                if (rule.filter && rule.filter.unique) {
+                    if (!self.status.used_filters[rule.filter.id]) {
+                        self.status.used_filters[rule.filter.id] = [];
+                    }
+                    if (rule.filter.unique == 'group') {
+                        self.status.used_filters[rule.filter.id].push(rule.parent);
+                    }
+                }
+            }, function(group) {
+                walk(group);
+            });
+        }(self.model.root));
+
+        self.applyDisabledFilters(e);
+    },
+
+    /**
+     * Clear the list of used filters
+     * @param {$.Event} [e]
+     * @private
+     */
+    clearDisabledFilters: function(e) {
+        var self = e ? e.builder : this;
+
+        self.status.used_filters = {};
+
+        self.applyDisabledFilters(e);
+    },
+
+    /**
+     * Disabled filters depending on the list of used ones
+     * @param {$.Event} [e]
+     * @private
+     */
+    applyDisabledFilters: function(e) {
+        var self = e ? e.builder : this;
+
+        // re-enable everything
+        self.$el.find(QueryBuilder.selectors.filter_container + ' option').prop('disabled', false);
+
+        // disable some
+        $.each(self.status.used_filters, function(filterId, groups) {
+            if (groups.length === 0) {
+                self.$el.find(QueryBuilder.selectors.filter_container + ' option[value="' + filterId + '"]:not(:selected)').prop('disabled', true);
+            }
+            else {
+                groups.forEach(function(group) {
+                    group.each(function(rule) {
+                        rule.$el.find(QueryBuilder.selectors.filter_container + ' option[value="' + filterId + '"]:not(:selected)').prop('disabled', true);
+                    });
+                });
+            }
+        });
+
+        // update Selectpicker
+        if (self.settings.plugins && self.settings.plugins['bt-selectpicker']) {
+            self.$el.find(QueryBuilder.selectors.rule_filter).selectpicker('render');
+        }
+    }
+});
+
+
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: English (en)
+ * Author: Damien "Mistic" Sorel, http://www.strangeplanet.fr
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+QueryBuilder.regional['en'] = {
+  "__locale": "English (en)",
+  "__author": "Damien \"Mistic\" Sorel, http://www.strangeplanet.fr",
+  "add_rule": "Add rule",
+  "add_group": "Add group",
+  "delete_rule": "Delete",
+  "delete_group": "Delete",
+  "conditions": {
+    "AND": "AND",
+    "OR": "OR"
+  },
+  "operators": {
+    "equal": "equal",
+    "not_equal": "not equal",
+    "in": "in",
+    "not_in": "not in",
+    "less": "less",
+    "less_or_equal": "less or equal",
+    "greater": "greater",
+    "greater_or_equal": "greater or equal",
+    "between": "between",
+    "not_between": "not between",
+    "begins_with": "begins with",
+    "not_begins_with": "doesn't begin with",
+    "contains": "contains",
+    "not_contains": "doesn't contain",
+    "ends_with": "ends with",
+    "not_ends_with": "doesn't end with",
+    "is_empty": "is empty",
+    "is_not_empty": "is not empty",
+    "is_null": "is null",
+    "is_not_null": "is not null"
+  },
+  "errors": {
+    "no_filter": "No filter selected",
+    "empty_group": "The group is empty",
+    "radio_empty": "No value selected",
+    "checkbox_empty": "No value selected",
+    "select_empty": "No value selected",
+    "string_empty": "Empty value",
+    "string_exceed_min_length": "Must contain at least {0} characters",
+    "string_exceed_max_length": "Must not contain more than {0} characters",
+    "string_invalid_format": "Invalid format ({0})",
+    "number_nan": "Not a number",
+    "number_not_integer": "Not an integer",
+    "number_not_double": "Not a real number",
+    "number_exceed_min": "Must be greater than {0}",
+    "number_exceed_max": "Must be lower than {0}",
+    "number_wrong_step": "Must be a multiple of {0}",
+    "number_between_invalid": "Invalid values, {0} is greater than {1}",
+    "datetime_empty": "Empty value",
+    "datetime_invalid": "Invalid date format ({0})",
+    "datetime_exceed_min": "Must be after {0}",
+    "datetime_exceed_max": "Must be before {0}",
+    "datetime_between_invalid": "Invalid values, {0} is greater than {1}",
+    "boolean_not_valid": "Not a boolean",
+    "operator_not_multiple": "Operator \"{1}\" cannot accept multiple values"
+  },
+  "invert": "Invert",
+  "NOT": "NOT"
+};
+
+QueryBuilder.defaults({ lang_code: 'en' });
+return QueryBuilder;
+
+}));
diff --git a/assets/js/query-builder.min.js b/assets/js/query-builder.min.js
new file mode 100644
index 00000000..4bee8793
--- /dev/null
+++ b/assets/js/query-builder.min.js
@@ -0,0 +1,7 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Copyright 2014-2018 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+!function(e,t){"function"==typeof define&&define.amd?define(["jquery","dot/doT","jquery-extendext"],t):"object"==typeof module&&module.exports?module.exports=t(require("jquery"),require("dot/doT"),require("jquery-extendext")):t(e.jQuery,e.doT)}(this,function($,r){"use strict";var c=function(e,t){(e[0].queryBuilder=this).$el=e,this.settings=$.extendext(!0,"replace",{},c.DEFAULTS,t),this.model=new i,this.status={id:null,generated_id:!1,group_id:0,rule_id:0,has_optgroup:!1,has_operator_optgroup:!1},this.filters=this.settings.filters,this.icons=this.settings.icons,this.operators=this.settings.operators,this.templates=this.settings.templates,this.plugins=this.settings.plugins,this.lang=null,void 0===c.regional.en&&h.error("Config",'"i18n/en.js" not loaded.'),this.lang=$.extendext(!0,"replace",{},c.regional.en,c.regional[this.settings.lang_code],this.settings.lang),!1===this.settings.allow_groups?this.settings.allow_groups=0:!0===this.settings.allow_groups&&(this.settings.allow_groups=-1),Object.keys(this.templates).forEach(function(e){this.templates[e]||(this.templates[e]=c.templates[e]),"string"==typeof this.templates[e]&&(this.templates[e]=r.template(this.templates[e]))},this),this.$el.attr("id")||(this.$el.attr("id","qb_"+Math.floor(99999*Math.random())),this.status.generated_id=!0),this.status.id=this.$el.attr("id"),this.$el.addClass("query-builder form-inline"),this.filters=this.checkFilters(this.filters),this.operators=this.checkOperators(this.operators),this.bindEvents(),this.initPlugins()};$.extend(c.prototype,{trigger:function(e){var t=new $.Event(this._tojQueryEvent(e),{builder:this});return this.$el.triggerHandler(t,Array.prototype.slice.call(arguments,1)),t},change:function(e,t){var r=new $.Event(this._tojQueryEvent(e,!0),{builder:this,value:t});return this.$el.triggerHandler(r,Array.prototype.slice.call(arguments,2)),r.value},on:function(e,t){return this.$el.on(this._tojQueryEvent(e),t),this},off:function(e,t){return this.$el.off(this._tojQueryEvent(e),t),this},once:function(e,t){return this.$el.one(this._tojQueryEvent(e),t),this},_tojQueryEvent:function(e,t){return e.split(" ").map(function(e){return e+".queryBuilder"+(t?".filter":"")}).join(" ")}}),c.types={string:"string",integer:"number",double:"number",date:"datetime",time:"datetime",datetime:"datetime",boolean:"boolean"},c.inputs=["text","number","textarea","radio","checkbox","select"],c.modifiable_options=["display_errors","allow_groups","allow_empty","default_condition","default_filter"],c.selectors={group_container:".rules-group-container",rule_container:".rule-container",filter_container:".rule-filter-container",operator_container:".rule-operator-container",value_container:".rule-value-container",error_container:".error-container",condition_container:".rules-group-header .group-conditions",rule_header:".rule-header",group_header:".rules-group-header",group_actions:".group-actions",rule_actions:".rule-actions",rules_list:".rules-group-body>.rules-list",group_condition:".rules-group-header [name$=_cond]",rule_filter:".rule-filter-container [name$=_filter]",rule_operator:".rule-operator-container [name$=_operator]",rule_value:".rule-value-container 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e=$(this).closest(t.rule_container);n.getModel(e).filter=n.getFilterById($(this).val())}),this.$el.on("change.queryBuilder",t.rule_operator,function(){var e=$(this).closest(t.rule_container);n.getModel(e).operator=n.getOperatorByType($(this).val())}),this.$el.on("click.queryBuilder",t.add_rule,function(){var e=$(this).closest(t.group_container);n.addRule(n.getModel(e))}),this.$el.on("click.queryBuilder",t.delete_rule,function(){var e=$(this).closest(t.rule_container);n.deleteRule(n.getModel(e))}),0!==this.settings.allow_groups&&(this.$el.on("click.queryBuilder",t.add_group,function(){var e=$(this).closest(t.group_container);n.addGroup(n.getModel(e))}),this.$el.on("click.queryBuilder",t.delete_group,function(){var e=$(this).closest(t.group_container);n.deleteGroup(n.getModel(e))})),this.model.on({drop:function(e,t){t.$el.remove(),n.refreshGroupsConditions()},add:function(e,t,r,i){0===i?r.$el.prependTo(t.$el.find(">"+c.selectors.rules_list)):r.$el.insertAfter(t.rules[i-1].$el),n.refreshGroupsConditions()},move:function(e,t,r,i){t.$el.detach(),0===i?t.$el.prependTo(r.$el.find(">"+c.selectors.rules_list)):t.$el.insertAfter(r.rules[i-1].$el),n.refreshGroupsConditions()},update:function(e,t,r,i,o){if(t instanceof l)switch(r){case"error":n.updateError(t);break;case"flags":n.applyRuleFlags(t);break;case"filter":n.updateRuleFilter(t,o);break;case"operator":n.updateRuleOperator(t,o);break;case"value":n.updateRuleValue(t,o)}else switch(r){case"error":n.updateError(t);break;case"flags":n.applyGroupFlags(t);break;case"condition":n.updateGroupCondition(t,o)}}})},c.prototype.setRoot=function(e,t,r){e=void 0===e||!0===e;var i=this.nextGroupId(),o=$(this.getGroupTemplate(i,1));return 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r=this.getOperators(e.filter),i=$(this.getRuleOperatorSelect(e,r));t.html(i),e.filter.default_operator?e.__.operator=this.getOperatorByType(e.filter.default_operator):e.__.operator=r[0],e.$el.find(c.selectors.rule_operator).val(e.operator.type),this.trigger("afterCreateRuleOperators",e,r),this.applyRuleFlags(e)}},c.prototype.createRuleInput=function(e){var t=e.$el.find(c.selectors.value_container).empty();if(e.__.value=void 0,e.filter&&e.operator&&0!==e.operator.nb_inputs){for(var r=this,i=$(),o=e.filter,n=0;n<e.operator.nb_inputs;n++){var l=$(this.getRuleInput(e,n));0<n&&t.append(this.settings.inputs_separator),t.append(l),i=i.add(l)}t.css("display",""),i.on("change "+(o.input_event||""),function(){e._updating_input||(e._updating_value=!0,e.value=r.getRuleInputValue(e),e._updating_value=!1)}),o.plugin&&i[o.plugin](o.plugin_config||{}),this.trigger("afterCreateRuleInput",e),void 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0),e.operator&&(e.$el.find(c.selectors.rule_operator).val(e.operator.type),e.__.value=this.getRuleInputValue(e)),this.trigger("afterUpdateRuleOperator",e,t),this.trigger("rulesChanged")},c.prototype.updateRuleValue=function(e,t){e._updating_value||this.setRuleInputValue(e,e.value),this.trigger("afterUpdateRuleValue",e,t),this.trigger("rulesChanged")},c.prototype.applyRuleFlags=function(e){var t=e.flags,r=c.selectors;e.$el.find(r.rule_filter).prop("disabled",t.filter_readonly),e.$el.find(r.rule_operator).prop("disabled",t.operator_readonly),e.$el.find(r.rule_value).prop("disabled",t.value_readonly),t.no_delete&&e.$el.find(r.delete_rule).remove(),this.trigger("afterApplyRuleFlags",e)},c.prototype.applyGroupFlags=function(e){var t=e.flags,r=c.selectors;e.$el.find(">"+r.group_condition).prop("disabled",t.condition_readonly).parent().toggleClass("readonly",t.condition_readonly),t.no_add_rule&&e.$el.find(r.add_rule).remove(),t.no_add_group&&e.$el.find(r.add_group).remove(),t.no_delete&&e.$el.find(r.delete_group).remove(),this.trigger("afterApplyGroupFlags",e)},c.prototype.clearErrors=function(e){(e=e||this.model.root)&&(e.error=null,e instanceof a&&e.each(function(e){e.error=null},function(e){this.clearErrors(e)},this))},c.prototype.updateError=function(e){if(this.settings.display_errors)if(null===e.error)e.$el.removeClass("has-error");else{var 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l.triggerValidationError(e,"no_operator",null),void o++;if(0!==e.operator.nb_inputs){var t=l.validateValue(e,e.value);if(!0!==t)return l.triggerValidationError(e,t,e.value),void o++}i++}},function(e){var t=r(e);!0===t?i++:!1===t&&o++}),!(0<o)&&(0===i&&!e.isRoot()&&n.skip_empty?null:!!(0!==i||l.settings.allow_empty&&e.isRoot())||(l.triggerValidationError(e,"empty_group",null),!1))}(this.model.root);return this.change("validate",e)},c.prototype.getRules=function(n){n=$.extend({get_flags:!1,allow_invalid:!1,skip_empty:!1},n);var e=this.validate(n);if(!e&&!n.allow_invalid)return null;var l=this,t=function r(e){var o={condition:e.condition,rules:[]};if(e.data&&(o.data=$.extendext(!0,"replace",{},e.data)),n.get_flags){var t=l.getGroupFlags(e.flags,"all"===n.get_flags);$.isEmptyObject(t)||(o.flags=t)}return e.each(function(e){if(e.filter||!n.skip_empty){var t=null;e.operator&&0===e.operator.nb_inputs||(t=e.value);var r={id:e.filter?e.filter.id:null,field:e.filter?e.filter.field:null,type:e.filter?e.filter.type:null,input:e.filter?e.filter.input:null,operator:e.operator?e.operator.type:null,value:t};if((e.filter&&e.filter.data||e.data)&&(r.data=$.extendext(!0,"replace",{},e.filter.data,e.data)),n.get_flags){var i=l.getRuleFlags(e.flags,"all"===n.get_flags);$.isEmptyObject(i)||(r.flags=i)}o.rules.push(l.change("ruleToJson",r,e))}},function(e){var t=r(e);0===t.rules.length&&n.skip_empty||o.rules.push(t)},this),l.change("groupToJson",o,e)}(this.model.root);return t.valid=e,this.change("getRules",t)},c.prototype.setRules=function(e,o){o=$.extend({allow_invalid:!1},o),$.isArray(e)&&(e={condition:this.settings.default_condition,rules:e}),e&&e.rules&&(0!==e.rules.length||this.settings.allow_empty)||h.error("RulesParse","Incorrect data object passed"),this.clear(),this.setRoot(!1,e.data,this.parseGroupFlags(e)),e=this.change("setRules",e,o);var n=this;!function r(e,i){null!==i&&(void 0===e.condition?e.condition=n.settings.default_condition:-1==n.settings.conditions.indexOf(e.condition)&&(h.error(!o.allow_invalid,"UndefinedCondition",'Invalid condition "{0}"',e.condition),e.condition=n.settings.default_condition),i.condition=e.condition,e.rules.forEach(function(e){var t;if(void 0!==e.rules)if(-1!==n.settings.allow_groups&&n.settings.allow_groups<i.level)h.error(!o.allow_invalid,"RulesParse","No more than {0} groups are allowed",n.settings.allow_groups),n.reset();else{if(null===(t=n.addGroup(i,!1,e.data,n.parseGroupFlags(e))))return;r(e,t)}else{if(e.empty||(void 0===e.id&&(h.error(!o.allow_invalid,"RulesParse","Missing rule field id"),e.empty=!0),void 0===e.operator&&(e.operator="equal")),null===(t=n.addRule(i,e.data,n.parseRuleFlags(e))))return;e.empty||(t.filter=n.getFilterById(e.id,!o.allow_invalid)),t.filter&&(t.operator=n.getOperatorByType(e.operator,!o.allow_invalid),t.operator||(t.operator=n.getOperators(t.filter)[0])),t.operator&&0!==t.operator.nb_inputs&&(void 0!==e.value?t.value=e.value:void 0!==t.filter.default_value&&(t.value=t.filter.default_value)),n.change("jsonToRule",t,e)!=t&&h.error("RulesParse","Plugin tried to change rule reference")}}),n.change("jsonToGroup",i,e)!=i&&h.error("RulesParse","Plugin tried to change group reference"))}(e,this.model.root),this.trigger("afterSetRules")},c.prototype.validateValue=function(e,t){var r=e.filter.validation||{},i=!0;return i=r.callback?r.callback.call(this,t,e):this._validateValue(e,t),this.change("validateValue",i,t,e)},c.prototype._validateValue=function(e,t){var r,i,o=e.filter,n=e.operator,l=o.validation||{},s=!0;1===e.operator.nb_inputs&&(t=[t]);for(var a=0;a<n.nb_inputs;a++){if(!n.multiple&&$.isArray(t[a])&&1<t[a].length){s=["operator_not_multiple",n.type,this.translate("operators",n.type)];break}switch(o.input){case"radio":if(void 0===t[a]||0===t[a].length){l.allow_empty_value||(s=["radio_empty"]);break}break;case"checkbox":if(void 0===t[a]||0===t[a].length){l.allow_empty_value||(s=["checkbox_empty"]);break}break;case"select":if(void 0===t[a]||0===t[a].length||o.placeholder&&t[a]==o.placeholder_value){l.allow_empty_value||(s=["select_empty"]);break}break;default:i=$.isArray(t[a])?t[a]:[t[a]];for(var u=0;u<i.length;u++){switch(c.types[o.type]){case"string":if(void 0===i[u]||0===i[u].length){l.allow_empty_value||(s=["string_empty"]);break}if(void 0!==l.min&&i[u].length<parseInt(l.min)){s=[this.getValidationMessage(l,"min","string_exceed_min_length"),l.min];break}if(void 0!==l.max&&i[u].length>parseInt(l.max)){s=[this.getValidationMessage(l,"max","string_exceed_max_length"),l.max];break}if(l.format&&("string"==typeof l.format&&(l.format=new RegExp(l.format)),!l.format.test(i[u]))){s=[this.getValidationMessage(l,"format","string_invalid_format"),l.format];break}break;case"number":if(void 0===i[u]||0===i[u].length){l.allow_empty_value||(s=["number_nan"]);break}if(isNaN(i[u])){s=["number_nan"];break}if("integer"==o.type){if(parseInt(i[u])!=i[u]){s=["number_not_integer"];break}}else if(parseFloat(i[u])!=i[u]){s=["number_not_double"];break}if(void 0!==l.min&&i[u]<parseFloat(l.min)){s=[this.getValidationMessage(l,"min","number_exceed_min"),l.min];break}if(void 0!==l.max&&i[u]>parseFloat(l.max)){s=[this.getValidationMessage(l,"max","number_exceed_max"),l.max];break}if(void 0!==l.step&&"any"!==l.step){var p=(i[u]/l.step).toPrecision(14);if(parseInt(p)!=p){s=[this.getValidationMessage(l,"step","number_wrong_step"),l.step];break}}break;case"datetime":if(void 0===i[u]||0===i[u].length){l.allow_empty_value||(s=["datetime_empty"]);break}if(l.format){"moment"in window||h.error("MissingLibrary","MomentJS is required for Date/Time validation. Get it here http://momentjs.com");var d=moment(i[u],l.format);if(!d.isValid()){s=[this.getValidationMessage(l,"format","datetime_invalid"),l.format];break}if(l.min&&d<moment(l.min,l.format)){s=[this.getValidationMessage(l,"min","datetime_exceed_min"),l.min];break}if(l.max&&d>moment(l.max,l.format)){s=[this.getValidationMessage(l,"max","datetime_exceed_max"),l.max];break}}break;case"boolean":if(void 0===i[u]||0===i[u].length){l.allow_empty_value||(s=["boolean_not_valid"]);break}if("true"!==(r=(""+i[u]).trim().toLowerCase())&&"false"!==r&&"1"!==r&&"0"!==r&&1!==i[u]&&0!==i[u]){s=["boolean_not_valid"];break}}if(!0!==s)break}}if(!0!==s)break}if(("between"===e.operator.type||"not_between"===e.operator.type)&&2===t.length)switch(c.types[o.type]){case"number":t[0]>t[1]&&(s=["number_between_invalid",t[0],t[1]]);break;case"datetime":l.format&&("moment"in window||h.error("MissingLibrary","MomentJS is required for Date/Time validation. Get it here http://momentjs.com"),moment(t[0],l.format).isAfter(moment(t[1],l.format))&&(s=["datetime_between_invalid",t[0],t[1]]))}return s},c.prototype.nextGroupId=function(){return this.status.id+"_group_"+this.status.group_id++},c.prototype.nextRuleId=function(){return this.status.id+"_rule_"+this.status.rule_id++},c.prototype.getOperators=function(r){"string"==typeof r&&(r=this.getFilterById(r));for(var e=[],t=0,i=this.operators.length;t<i;t++){if(r.operators){if(-1==r.operators.indexOf(this.operators[t].type))continue}else if(-1==this.operators[t].apply_to.indexOf(c.types[r.type]))continue;e.push(this.operators[t])}return r.operators&&e.sort(function(e,t){return r.operators.indexOf(e.type)-r.operators.indexOf(t.type)}),this.change("getOperators",e,r)},c.prototype.getFilterById=function(e,t){if("-1"==e)return null;for(var r=0,i=this.filters.length;r<i;r++)if(this.filters[r].id==e)return this.filters[r];return h.error(!1!==t,"UndefinedFilter",'Undefined filter "{0}"',e),null},c.prototype.getOperatorByType=function(e,t){if("-1"==e)return null;for(var r=0,i=this.operators.length;r<i;r++)if(this.operators[r].type==e)return this.operators[r];return h.error(!1!==t,"UndefinedOperator",'Undefined operator "{0}"',e),null},c.prototype.getRuleInputValue=function(e){var t=e.filter,r=e.operator,i=[];if(t.valueGetter)i=t.valueGetter.call(this,e);else{for(var o=e.$el.find(c.selectors.value_container),n=0;n<r.nb_inputs;n++){var l,s=h.escapeElementId(e.id+"_value_"+n);switch(t.input){case"radio":i.push(o.find("[name="+s+"]:checked").val());break;case"checkbox":l=[],o.find("[name="+s+"]:checked").each(function(){l.push($(this).val())}),i.push(l);break;case"select":t.multiple?(l=[],o.find("[name="+s+"] option:selected").each(function(){l.push($(this).val())}),i.push(l)):i.push(o.find("[name="+s+"] option:selected").val());break;default:i.push(o.find("[name="+s+"]").val())}}i=i.map(function(e){return r.multiple&&t.value_separator&&"string"==typeof e&&(e=e.split(t.value_separator)),$.isArray(e)?e.map(function(e){return h.changeType(e,t.type)}):h.changeType(e,t.type)}),1===r.nb_inputs&&(i=i[0]),t.valueParser&&(i=t.valueParser.call(this,e,i))}return this.change("getRuleValue",i,e)},c.prototype.setRuleInputValue=function(e,t){var r=e.filter,i=e.operator;if(r&&i){if(e._updating_input=!0,r.valueSetter)r.valueSetter.call(this,e,t);else{var o=e.$el.find(c.selectors.value_container);1==i.nb_inputs&&(t=[t]);for(var n=0;n<i.nb_inputs;n++){var l=h.escapeElementId(e.id+"_value_"+n);switch(r.input){case"radio":o.find("[name="+l+'][value="'+t[n]+'"]').prop("checked",!0).trigger("change");break;case"checkbox":$.isArray(t[n])||(t[n]=[t[n]]),t[n].forEach(function(e){o.find("[name="+l+'][value="'+e+'"]').prop("checked",!0).trigger("change")});break;default:i.multiple&&r.value_separator&&$.isArray(t[n])&&(t[n]=t[n].join(r.value_separator)),o.find("[name="+l+"]").val(t[n]).trigger("change")}}}e._updating_input=!1}},c.prototype.parseRuleFlags=function(e){var t=$.extend({},this.settings.default_rule_flags);return e.readonly&&$.extend(t,{filter_readonly:!0,operator_readonly:!0,value_readonly:!0,no_delete:!0}),e.flags&&$.extend(t,e.flags),this.change("parseRuleFlags",t,e)},c.prototype.getRuleFlags=function(r,e){if(e)return $.extend({},r);var i={};return $.each(this.settings.default_rule_flags,function(e,t){r[e]!==t&&(i[e]=r[e])}),i},c.prototype.parseGroupFlags=function(e){var t=$.extend({},this.settings.default_group_flags);return e.readonly&&$.extend(t,{condition_readonly:!0,no_add_rule:!0,no_add_group:!0,no_delete:!0}),e.flags&&$.extend(t,e.flags),this.change("parseGroupFlags",t,e)},c.prototype.getGroupFlags=function(r,e){if(e)return $.extend({},r);var i={};return $.each(this.settings.default_group_flags,function(e,t){r[e]!==t&&(i[e]=r[e])}),i},c.prototype.translate=function(e,t){var r;return t||(t=e,e=void 0),r="object"==typeof t?t[this.settings.lang_code]||t.en:(e?this.lang[e]:this.lang)[t]||t,this.change("translate",r,t,e)},c.prototype.getValidationMessage=function(e,t,r){return e.messages&&e.messages[t]||r},c.templates.group='<div id="{{= it.group_id }}" class="rules-group-container">   <div class="rules-group-header">     <div class="btn-group pull-right group-actions">       <button type="button" class="btn btn-xs btn-success" data-add="rule">         <i class="{{= it.icons.add_rule }}"></i> {{= it.translate("add_rule") }}       </button>       {{? it.settings.allow_groups===-1 || it.settings.allow_groups>=it.level }}         <button type="button" class="btn btn-xs btn-success" data-add="group">           <i class="{{= it.icons.add_group }}"></i> {{= it.translate("add_group") }}         </button>       {{?}}       {{? it.level>1 }}         <button type="button" class="btn btn-xs btn-danger" data-delete="group">           <i class="{{= it.icons.remove_group }}"></i> {{= it.translate("delete_group") }}         </button>       {{?}}     </div>     <div class="btn-group group-conditions">       {{~ it.conditions: condition }}         <label class="btn btn-xs btn-primary">           <input type="radio" name="{{= it.group_id }}_cond" value="{{= condition }}"> {{= it.translate("conditions", condition) }}         </label>       {{~}}     </div>     {{? it.settings.display_errors }}       <div class="error-container"><i class="{{= it.icons.error }}"></i></div>     {{?}}   </div>   <div class=rules-group-body>     <div class=rules-list></div>   </div> </div>',c.templates.rule='<div id="{{= it.rule_id }}" class="rule-container">   <div class="rule-header">     <div class="btn-group pull-right rule-actions">       <button type="button" class="btn btn-xs btn-danger" data-delete="rule">         <i class="{{= it.icons.remove_rule }}"></i> {{= it.translate("delete_rule") }}       </button>     </div>   </div>   {{? it.settings.display_errors }}     <div class="error-container"><i class="{{= it.icons.error }}"></i></div>   {{?}}   <div class="rule-filter-container"></div>   <div class="rule-operator-container"></div>   <div class="rule-value-container"></div> </div>',c.templates.filterSelect='{{ var optgroup = null; }} <select class="form-control" name="{{= it.rule.id }}_filter">   {{? it.settings.display_empty_filter }}     <option value="-1">{{= it.settings.select_placeholder }}</option>   {{?}}   {{~ it.filters: filter }}     {{? optgroup !== filter.optgroup }}       {{? optgroup !== null }}</optgroup>{{?}}       {{? (optgroup = filter.optgroup) !== null }}         <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}">       {{?}}     {{?}}     <option value="{{= filter.id }}" {{? filter.icon}}data-icon="{{= filter.icon}}"{{?}}>{{= it.translate(filter.label) }}</option>   {{~}}   {{? optgroup !== null }}</optgroup>{{?}} </select>',c.templates.operatorSelect='{{? it.operators.length === 1 }} <span> {{= it.translate("operators", it.operators[0].type) }} </span> {{?}} {{ var optgroup = null; }} <select class="form-control {{? it.operators.length === 1 }}hide{{?}}" name="{{= it.rule.id }}_operator">   {{~ it.operators: operator }}     {{? optgroup !== operator.optgroup }}       {{? optgroup !== null }}</optgroup>{{?}}       {{? (optgroup = operator.optgroup) !== null }}         <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}">       {{?}}     {{?}}     <option value="{{= operator.type }}" {{? operator.icon}}data-icon="{{= operator.icon}}"{{?}}>{{= it.translate("operators", operator.type) }}</option>   {{~}}   {{? optgroup !== null }}</optgroup>{{?}} </select>',c.templates.ruleValueSelect='{{ var optgroup = null; }} <select class="form-control" name="{{= it.name }}" {{? it.rule.filter.multiple }}multiple{{?}}>   {{? it.rule.filter.placeholder }}     <option value="{{= it.rule.filter.placeholder_value }}" disabled selected>{{= it.rule.filter.placeholder }}</option>   {{?}}   {{~ it.rule.filter.values: entry }}     {{? optgroup !== entry.optgroup }}       {{? optgroup !== null }}</optgroup>{{?}}       {{? (optgroup = entry.optgroup) !== null }}         <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}">       {{?}}     {{?}}     <option value="{{= entry.value }}">{{= entry.label }}</option>   {{~}}   {{? optgroup !== null }}</optgroup>{{?}} </select>',c.prototype.getGroupTemplate=function(e,t){var r=this.templates.group({builder:this,group_id:e,level:t,conditions:this.settings.conditions,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getGroupTemplate",r,t)},c.prototype.getRuleTemplate=function(e){var t=this.templates.rule({builder:this,rule_id:e,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getRuleTemplate",t)},c.prototype.getRuleFilterSelect=function(e,t){var r=this.templates.filterSelect({builder:this,rule:e,filters:t,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getRuleFilterSelect",r,e,t)},c.prototype.getRuleOperatorSelect=function(e,t){var r=this.templates.operatorSelect({builder:this,rule:e,operators:t,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getRuleOperatorSelect",r,e,t)},c.prototype.getRuleValueSelect=function(e,t){var r=this.templates.ruleValueSelect({builder:this,name:e,rule:t,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getRuleValueSelect",r,e,t)},c.prototype.getRuleInput=function(e,t){var r=e.filter,i=e.filter.validation||{},o=e.id+"_value_"+t,n=r.vertical?" class=block":"",l="";if("function"==typeof r.input)l=r.input.call(this,e,o);else switch(r.input){case"radio":case"checkbox":h.iterateOptions(r.values,function(e,t){l+="<label"+n+'><input type="'+r.input+'" name="'+o+'" value="'+e+'"> '+t+"</label> "});break;case"select":l=this.getRuleValueSelect(o,e);break;case"textarea":l+='<textarea class="form-control" name="'+o+'"',r.size&&(l+=' cols="'+r.size+'"'),r.rows&&(l+=' rows="'+r.rows+'"'),void 0!==i.min&&(l+=' minlength="'+i.min+'"'),void 0!==i.max&&(l+=' maxlength="'+i.max+'"'),r.placeholder&&(l+=' placeholder="'+r.placeholder+'"'),l+="></textarea>";break;case"number":l+='<input class="form-control" type="number" name="'+o+'"',void 0!==i.step&&(l+=' step="'+i.step+'"'),void 0!==i.min&&(l+=' min="'+i.min+'"'),void 0!==i.max&&(l+=' max="'+i.max+'"'),r.placeholder&&(l+=' placeholder="'+r.placeholder+'"'),r.size&&(l+=' size="'+r.size+'"'),l+=">";break;default:l+='<input class="form-control" type="text" name="'+o+'"',r.placeholder&&(l+=' placeholder="'+r.placeholder+'"'),"string"===r.type&&void 0!==i.min&&(l+=' minlength="'+i.min+'"'),"string"===r.type&&void 0!==i.max&&(l+=' maxlength="'+i.max+'"'),r.size&&(l+=' size="'+r.size+'"'),l+=">"}return this.change("getRuleInput",l,e,o)};var h={};function i(){this.root=null,this.$=$(this)}(c.utils=h).iterateOptions=function(e,r){e&&($.isArray(e)?e.forEach(function(e){$.isPlainObject(e)?"value"in e?r(e.value,e.label||e.value,e.optgroup):$.each(e,function(e,t){return r(e,t),!1}):r(e,e)}):$.each(e,function(e,t){r(e,t)}))},h.fmt=function(e,r){return Array.isArray(r)||(r=Array.prototype.slice.call(arguments,1)),e.replace(/{([0-9]+)}/g,function(e,t){return r[parseInt(t)]})},h.error=function(){var e=0,t="boolean"!=typeof arguments[e]||arguments[e++],r=arguments[e++],i=arguments[e++],o=Array.isArray(arguments[e])?arguments[e]:Array.prototype.slice.call(arguments,e);if(t){var n=new Error(h.fmt(i,o));throw n.name=r+"Error",n.args=o,n}console.error(r+"Error: "+h.fmt(i,o))},h.changeType=function(e,t){if(""!==e&&void 0!==e)switch(t){case"integer":return"string"!=typeof e||/^-?\d+$/.test(e)?parseInt(e):e;case"double":return"string"!=typeof e||/^-?\d+\.?\d*$/.test(e)?parseFloat(e):e;case"boolean":return"string"!=typeof e||/^(0|1|true|false){1}$/i.test(e)?!0===e||1===e||"true"===e.toLowerCase()||"1"===e:e;default:return e}},h.escapeString=function(e){return"string"!=typeof e?e:e.replace(/[\0\n\r\b\\\'\"]/g,function(e){switch(e){case"\0":return"\\0";case"\n":return"\\n";case"\r":return"\\r";case"\b":return"\\b";default:return"\\"+e}}).replace(/\t/g,"\\t").replace(/\x1a/g,"\\Z")},h.escapeRegExp=function(e){return e.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g,"\\$&")},h.escapeElementId=function(e){return e?e.replace(/(\\)?([:.\[\],])/g,function(e,t,r){return t?e:"\\"+r}):e},h.groupSort=function(e,r){var i=[],o=[];return e.forEach(function(e){var t;e[r]?-1==(t=i.lastIndexOf(e[r]))?t=i.length:t++:t=i.length,i.splice(t,0,e[r]),o.splice(t,0,e)}),o},h.defineModelProperties=function(e,t){t.forEach(function(r){Object.defineProperty(e.prototype,r,{enumerable:!0,get:function(){return this.__[r]},set:function(e){var t=null!==this.__[r]&&"object"==typeof this.__[r]?$.extend({},this.__[r]):this.__[r];this.__[r]=e,null!==this.model&&this.model.trigger("update",this,r,e,t)}})})},$.extend(i.prototype,{trigger:function(e){var t=new $.Event(e);return this.$.triggerHandler(t,Array.prototype.slice.call(arguments,1)),t},on:function(){return this.$.on.apply(this.$,Array.prototype.slice.call(arguments)),this},off:function(){return this.$.off.apply(this.$,Array.prototype.slice.call(arguments)),this},once:function(){return this.$.one.apply(this.$,Array.prototype.slice.call(arguments)),this}});var o=function(e,t){if(!(this instanceof o))return new o(e,t);Object.defineProperty(this,"__",{value:{}}),t.data("queryBuilderModel",this),this.__.level=1,this.__.error=null,this.__.flags={},this.__.data=void 0,this.$el=t,this.id=t[0].id,this.model=null,this.parent=e};h.defineModelProperties(o,["level","error","data","flags"]),Object.defineProperty(o.prototype,"parent",{enumerable:!0,get:function(){return this.__.parent},set:function(e){this.__.parent=e,this.level=null===e?1:e.level+1,this.model=null===e?null:e.model}}),o.prototype.isRoot=function(){return 1===this.level},o.prototype.getPos=function(){return this.isRoot()?-1:this.parent.getNodePos(this)},o.prototype.drop=function(){var e=this.model;this.parent&&this.parent.removeNode(this),this.$el.removeData("queryBuilderModel"),null!==e&&e.trigger("drop",this)},o.prototype.moveAfter=function(e){this.isRoot()||this.move(e.parent,e.getPos()+1)},o.prototype.moveAtBegin=function(e){this.isRoot()||(void 0===e&&(e=this.parent),this.move(e,0))},o.prototype.moveAtEnd=function(e){this.isRoot()||(void 0===e&&(e=this.parent),this.move(e,0===e.length()?0:e.length()-1))},o.prototype.move=function(e,t){this.isRoot()||("number"==typeof e&&(t=e,e=this.parent),this.parent.removeNode(this),e.insertNode(this,t,!1),null!==this.model&&this.model.trigger("move",this,e,t))};var a=function(e,t){if(!(this instanceof a))return new a(e,t);o.call(this,e,t),this.rules=[],this.__.condition=null};a.prototype=Object.create(o.prototype),a.prototype.constructor=a,h.defineModelProperties(a,["condition"]),a.prototype.empty=function(){this.each("reverse",function(e){e.drop()},function(e){e.drop()})},a.prototype.drop=function(){this.empty(),o.prototype.drop.call(this)},a.prototype.length=function(){return this.rules.length},a.prototype.insertNode=function(e,t,r){return void 0===t&&(t=this.length()),this.rules.splice(t,0,e),e.parent=this,r&&null!==this.model&&this.model.trigger("add",this,e,t),e},a.prototype.addGroup=function(e,t){return this.insertNode(new a(this,e),t,!0)},a.prototype.addRule=function(e,t){return this.insertNode(new l(this,e),t,!0)},a.prototype.removeNode=function(e){var t=this.getNodePos(e);-1!==t&&(e.parent=null,this.rules.splice(t,1))},a.prototype.getNodePos=function(e){return this.rules.indexOf(e)},a.prototype.each=function(e,t,r,i){"boolean"!=typeof e&&"string"!=typeof e&&(i=r,r=t,t=e,e=!1),i=void 0===i?null:i;for(var o=e?this.rules.length-1:0,n=e?0:this.rules.length-1,l=e?-1:1,s=!1;(e?n<=o:o<=n)&&(this.rules[o]instanceof a?r&&(s=!1===r.call(i,this.rules[o])):t&&(s=!1===t.call(i,this.rules[o])),!s);o+=l);return!s},a.prototype.contains=function(t,e){return-1!==this.getNodePos(t)||!!e&&!this.each(function(){return!0},function(e){return!e.contains(t,!0)})};var l=function(e,t){if(!(this instanceof l))return new l(e,t);o.call(this,e,t),this._updating_value=!1,this._updating_input=!1,this.__.filter=null,this.__.operator=null,this.__.value=void 0};function u(e,t,r){var i,o,n=c.selectors;(i=t.closest(n.rule_container)).length&&(o="moveAfter"),o||(i=t.closest(n.group_header)).length&&(i=t.closest(n.group_container),o="moveAtBegin"),o||(i=t.closest(n.group_container)).length&&(o="moveAtEnd"),o&&(e[o](r.getModel(i)),r&&e instanceof l&&r.setRuleInputValue(e,e.value))}function n(e){var t=e.match(/(question_mark|numbered|named)(?:\((.)\))?/);return t||(t=[null,"question_mark",void 0]),t}return l.prototype=Object.create(o.prototype),l.prototype.constructor=l,h.defineModelProperties(l,["filter","operator","value"]),l.prototype.isRoot=function(){return!1},c.Group=a,c.Rule=l,$.fn.queryBuilder=function(e){0===this.length&&h.error("Config","No target defined"),1<this.length&&h.error("Config","Unable to initialize on multiple target");var t=this.data("queryBuilder"),r="object"==typeof e&&e||{};if(!t&&"destroy"==e)return this;if(!t){var i=new c(this,r);this.data("queryBuilder",i),i.init(r.rules)}return"string"==typeof e?t[e].apply(t,Array.prototype.slice.call(arguments,1)):this},$.fn.queryBuilder.constructor=c,$.fn.queryBuilder.defaults=c.defaults,$.fn.queryBuilder.extend=c.extend,$.fn.queryBuilder.define=c.define,$.fn.queryBuilder.regional=c.regional,c.define("bt-checkbox",function(u){"glyphicons"==u.font&&this.$el.addClass("bt-checkbox-glyphicons"),this.on("getRuleInput.filter",function(o,e,n){var l=e.filter;if(("radio"===l.input||"checkbox"===l.input)&&!l.plugin){o.value="",l.colors||(l.colors={}),l.color&&(l.colors._def_=l.color);var s=l.vertical?' style="display:block"':"",a=0;h.iterateOptions(l.values,function(e,t){var r=l.colors[e]||l.colors._def_||u.color,i=n+"_"+a++;o.value+="<div"+s+' class="'+l.input+" "+l.input+"-"+r+'">   <input type="'+l.input+'" name="'+n+'" id="'+i+'" value="'+e+'">   <label for="'+i+'">'+t+"</label> </div>"})}})},{font:"glyphicons",color:"default"}),c.define("bt-selectpicker",function(r){$.fn.selectpicker&&$.fn.selectpicker.Constructor||h.error("MissingLibrary",'Bootstrap Select is required to use "bt-selectpicker" plugin. Get it here: http://silviomoreto.github.io/bootstrap-select');var i=c.selectors;this.on("afterCreateRuleFilters",function(e,t){t.$el.find(i.rule_filter).removeClass("form-control").selectpicker(r)}),this.on("afterCreateRuleOperators",function(e,t){t.$el.find(i.rule_operator).removeClass("form-control").selectpicker(r)}),this.on("afterUpdateRuleFilter",function(e,t){t.$el.find(i.rule_filter).selectpicker("render")}),this.on("afterUpdateRuleOperator",function(e,t){t.$el.find(i.rule_operator).selectpicker("render")}),this.on("beforeDeleteRule",function(e,t){t.$el.find(i.rule_filter).selectpicker("destroy"),t.$el.find(i.rule_operator).selectpicker("destroy")})},{container:"body",style:"btn-inverse btn-xs",width:"auto",showIcon:!1}),c.define("bt-tooltip-errors",function(i){$.fn.tooltip&&$.fn.tooltip.Constructor&&$.fn.tooltip.Constructor.prototype.fixTitle||h.error("MissingLibrary",'Bootstrap Tooltip is required to use "bt-tooltip-errors" plugin. Get it here: http://getbootstrap.com');var o=this;this.on("getRuleTemplate.filter getGroupTemplate.filter",function(e){var t=$(e.value);t.find(c.selectors.error_container).attr("data-toggle","tooltip"),e.value=t.prop("outerHTML")}),this.model.on("update",function(e,t,r){"error"==r&&o.settings.display_errors&&t.$el.find(c.selectors.error_container).eq(0).tooltip(i).tooltip("hide").tooltip("fixTitle")})},{placement:"right"}),c.extend({setFilters:function(e,t){var r=this;void 0===t&&(t=e,e=!1),t=this.checkFilters(t);var i=(t=this.change("setFilters",t)).map(function(e){return e.id});if(e||function e(t){t.each(function(e){e.filter&&-1===i.indexOf(e.filter.id)&&h.error("ChangeFilter",'A rule is using filter "{0}"',e.filter.id)},e)}(this.model.root),this.filters=t,function e(t){t.each(!0,function(e){e.filter&&-1===i.indexOf(e.filter.id)?(e.drop(),r.trigger("rulesChanged")):(r.createRuleFilters(e),e.$el.find(c.selectors.rule_filter).val(e.filter?e.filter.id:"-1"),r.trigger("afterUpdateRuleFilter",e))},e)}(this.model.root),this.settings.plugins&&(this.settings.plugins["unique-filter"]&&this.updateDisabledFilters(),this.settings.plugins["bt-selectpicker"]&&this.$el.find(c.selectors.rule_filter).selectpicker("render")),this.settings.default_filter)try{this.getFilterById(this.settings.default_filter)}catch(e){this.settings.default_filter=null}this.trigger("afterSetFilters",t)},addFilter:function(e,r){void 0===r||"#end"==r?r=this.filters.length:"#start"==r&&(r=0),$.isArray(e)||(e=[e]);var t=$.extend(!0,[],this.filters);parseInt(r)==r?Array.prototype.splice.apply(t,[r,0].concat(e)):this.filters.some(function(e,t){if(e.id==r)return r=t+1,!0})?Array.prototype.splice.apply(t,[r,0].concat(e)):Array.prototype.push.apply(t,e),this.setFilters(t)},removeFilter:function(t,e){var r=$.extend(!0,[],this.filters);"string"==typeof t&&(t=[t]),r=r.filter(function(e){return-1===t.indexOf(e.id)}),this.setFilters(e,r)}}),c.define("chosen-selectpicker",function(r){$.fn.chosen||h.error("MissingLibrary",'chosen is required to use "chosen-selectpicker" plugin. Get it here: https://github.com/harvesthq/chosen'),this.settings.plugins["bt-selectpicker"]&&h.error("Conflict","bt-selectpicker is already selected as the dropdown plugin. Please remove chosen-selectpicker from the plugin list");var i=c.selectors;this.on("afterCreateRuleFilters",function(e,t){t.$el.find(i.rule_filter).removeClass("form-control").chosen(r)}),this.on("afterCreateRuleOperators",function(e,t){t.$el.find(i.rule_operator).removeClass("form-control").chosen(r)}),this.on("afterUpdateRuleFilter",function(e,t){t.$el.find(i.rule_filter).trigger("chosen:updated")}),this.on("afterUpdateRuleOperator",function(e,t){t.$el.find(i.rule_operator).trigger("chosen:updated")}),this.on("beforeDeleteRule",function(e,t){t.$el.find(i.rule_filter).chosen("destroy"),t.$el.find(i.rule_operator).chosen("destroy")})}),c.define("filter-description",function(o){"inline"===o.mode?this.on("afterUpdateRuleFilter afterUpdateRuleOperator",function(e,t){var r=t.$el.find("p.filter-description"),i=e.builder.getFilterDescription(t.filter,t);i?(0===r.length?(r=$('<p class="filter-description"></p>')).appendTo(t.$el):r.css("display",""),r.html('<i class="'+o.icon+'"></i> '+i)):r.hide()}):"popover"===o.mode?($.fn.popover&&$.fn.popover.Constructor&&$.fn.popover.Constructor.prototype.fixTitle||h.error("MissingLibrary",'Bootstrap Popover is required to use "filter-description" plugin. Get it here: http://getbootstrap.com'),this.on("afterUpdateRuleFilter afterUpdateRuleOperator",function(e,t){var r=t.$el.find("button.filter-description"),i=e.builder.getFilterDescription(t.filter,t);i?(0===r.length?((r=$('<button type="button" class="btn btn-xs btn-info filter-description" data-toggle="popover"><i class="'+o.icon+'"></i></button>')).prependTo(t.$el.find(c.selectors.rule_actions)),r.popover({placement:"left",container:"body",html:!0}),r.on("mouseout",function(){r.popover("hide")})):r.css("display",""),r.data("bs.popover").options.content=i,r.attr("aria-describedby")&&r.popover("show")):(r.hide(),r.data("bs.popover")&&r.popover("hide"))})):"bootbox"===o.mode&&("bootbox"in window||h.error("MissingLibrary",'Bootbox is required to use "filter-description" plugin. Get it here: http://bootboxjs.com'),this.on("afterUpdateRuleFilter afterUpdateRuleOperator",function(e,t){var r=t.$el.find("button.filter-description"),i=e.builder.getFilterDescription(t.filter,t);i?(0===r.length?((r=$('<button type="button" class="btn btn-xs btn-info filter-description" data-toggle="bootbox"><i class="'+o.icon+'"></i></button>')).prependTo(t.$el.find(c.selectors.rule_actions)),r.on("click",function(){bootbox.alert(r.data("description"))})):r.css("display",""),r.data("description",i)):r.hide()}))},{icon:"glyphicon glyphicon-info-sign",mode:"popover"}),c.extend({getFilterDescription:function(e,t){return e?"function"==typeof e.description?e.description.call(this,t):e.description:void 0}}),c.define("invert",function(r){var i=this,o=c.selectors;this.on("afterInit",function(){i.$el.on("click.queryBuilder","[data-invert=group]",function(){var e=$(this).closest(o.group_container);i.invert(i.getModel(e),r)}),r.display_rules_button&&r.invert_rules&&i.$el.on("click.queryBuilder","[data-invert=rule]",function(){var e=$(this).closest(o.rule_container);i.invert(i.getModel(e),r)})}),r.disable_template||(this.on("getGroupTemplate.filter",function(e){var t=$(e.value);t.find(o.condition_container).after('<button type="button" class="btn btn-xs btn-default" data-invert="group"><i class="'+r.icon+'"></i> '+i.translate("invert")+"</button>"),e.value=t.prop("outerHTML")}),r.display_rules_button&&r.invert_rules&&this.on("getRuleTemplate.filter",function(e){var t=$(e.value);t.find(o.rule_actions).prepend('<button type="button" class="btn btn-xs btn-default" data-invert="rule"><i class="'+r.icon+'"></i> '+i.translate("invert")+"</button>"),e.value=t.prop("outerHTML")}))},{icon:"glyphicon glyphicon-random",recursive:!0,invert_rules:!0,display_rules_button:!1,silent_fail:!1,disable_template:!1}),c.defaults({operatorOpposites:{equal:"not_equal",not_equal:"equal",in:"not_in",not_in:"in",less:"greater_or_equal",less_or_equal:"greater",greater:"less_or_equal",greater_or_equal:"less",between:"not_between",not_between:"between",begins_with:"not_begins_with",not_begins_with:"begins_with",contains:"not_contains",not_contains:"contains",ends_with:"not_ends_with",not_ends_with:"ends_with",is_empty:"is_not_empty",is_not_empty:"is_empty",is_null:"is_not_null",is_not_null:"is_null"},conditionOpposites:{AND:"OR",OR:"AND"}}),c.extend({invert:function(e,t){if(!(e instanceof o)){if(!this.model.root)return;t=e,e=this.model.root}if("object"!=typeof t&&(t={}),void 0===t.recursive&&(t.recursive=!0),void 0===t.invert_rules&&(t.invert_rules=!0),void 0===t.silent_fail&&(t.silent_fail=!1),void 0===t.trigger&&(t.trigger=!0),e instanceof a){if(this.settings.conditionOpposites[e.condition]?e.condition=this.settings.conditionOpposites[e.condition]:t.silent_fail||h.error("InvertCondition",'Unknown inverse of condition "{0}"',e.condition),t.recursive){var r=$.extend({},t,{trigger:!1});e.each(function(e){t.invert_rules&&this.invert(e,r)},function(e){this.invert(e,r)},this)}}else if(e instanceof l&&e.operator&&!e.filter.no_invert)if(this.settings.operatorOpposites[e.operator.type]){var i=this.settings.operatorOpposites[e.operator.type];e.filter.operators&&-1==e.filter.operators.indexOf(i)||(e.operator=this.getOperatorByType(i))}else t.silent_fail||h.error("InvertOperator",'Unknown inverse of operator "{0}"',e.operator.type);t.trigger&&(this.trigger("afterInvert",e,t),this.trigger("rulesChanged"))}}),c.defaults({mongoOperators:{equal:function(e){return e[0]},not_equal:function(e){return{$ne:e[0]}},in:function(e){return{$in:e}},not_in:function(e){return{$nin:e}},less:function(e){return{$lt:e[0]}},less_or_equal:function(e){return{$lte:e[0]}},greater:function(e){return{$gt:e[0]}},greater_or_equal:function(e){return{$gte:e[0]}},between:function(e){return{$gte:e[0],$lte:e[1]}},not_between:function(e){return{$lt:e[0],$gt:e[1]}},begins_with:function(e){return{$regex:"^"+h.escapeRegExp(e[0])}},not_begins_with:function(e){return{$regex:"^(?!"+h.escapeRegExp(e[0])+")"}},contains:function(e){return{$regex:h.escapeRegExp(e[0])}},not_contains:function(e){return{$regex:"^((?!"+h.escapeRegExp(e[0])+").)*$",$options:"s"}},ends_with:function(e){return{$regex:h.escapeRegExp(e[0])+"$"}},not_ends_with:function(e){return{$regex:"(?<!"+h.escapeRegExp(e[0])+")$"}},is_empty:function(e){return""},is_not_empty:function(e){return{$ne:""}},is_null:function(e){return null},is_not_null:function(e){return{$ne:null}}},mongoRuleOperators:{$eq:function(e){return{val:e,op:null===e?"is_null":""===e?"is_empty":"equal"}},$ne:function(e){return{val:e=e.$ne,op:null===e?"is_not_null":""===e?"is_not_empty":"not_equal"}},$regex:function(e){return"^(?!"==(e=e.$regex).slice(0,4)&&")"==e.slice(-1)?{val:e.slice(4,-1),op:"not_begins_with"}:"^((?!"==e.slice(0,5)&&").)*$"==e.slice(-5)?{val:e.slice(5,-5),op:"not_contains"}:"(?<!"==e.slice(0,4)&&")$"==e.slice(-2)?{val:e.slice(4,-2),op:"not_ends_with"}:"$"==e.slice(-1)?{val:e.slice(0,-1),op:"ends_with"}:"^"==e.slice(0,1)?{val:e.slice(1),op:"begins_with"}:{val:e,op:"contains"}},between:function(e){return{val:[e.$gte,e.$lte],op:"between"}},not_between:function(e){return{val:[e.$lt,e.$gt],op:"not_between"}},$in:function(e){return{val:e.$in,op:"in"}},$nin:function(e){return{val:e.$nin,op:"not_in"}},$lt:function(e){return{val:e.$lt,op:"less"}},$lte:function(e){return{val:e.$lte,op:"less_or_equal"}},$gt:function(e){return{val:e.$gt,op:"greater"}},$gte:function(e){return{val:e.$gte,op:"greater_or_equal"}}}}),c.extend({getMongo:function(e){if(!(e=void 0===e?this.getRules():e))return null;var l=this;return function o(e){if(e.condition||(e.condition=l.settings.default_condition),-1===["AND","OR"].indexOf(e.condition.toUpperCase())&&h.error("UndefinedMongoCondition",'Unable to build MongoDB query with condition "{0}"',e.condition),!e.rules)return{};var n=[];e.rules.forEach(function(e){if(e.rules&&0<e.rules.length)n.push(o(e));else{var t=l.settings.mongoOperators[e.operator],r=l.getOperatorByType(e.operator);void 0===t&&h.error("UndefinedMongoOperator",'Unknown MongoDB operation for operator "{0}"',e.operator),0!==r.nb_inputs&&(e.value instanceof Array||(e.value=[e.value]));var i={};i[l.change("getMongoDBField",e.field,e)]=t.call(l,e.value),n.push(l.change("ruleToMongo",i,e,e.value,t))}});var t={};return t["$"+e.condition.toLowerCase()]=n,l.change("groupToMongo",t,e)}(e)},getRulesFromMongo:function(e){if(null==e)return null;var d=this;if("rules"in(e=d.change("parseMongoNode",e))&&"condition"in e)return e;if("id"in e&&"operator"in e&&"value"in e)return{condition:this.settings.default_condition,rules:[e]};var t=d.getMongoCondition(e);return t||h.error("MongoParse","Invalid MongoDB query format"),function u(e,t){var r=e[t],p=[];return r.forEach(function(e){if("rules"in(e=d.change("parseMongoNode",e))&&"condition"in e)p.push(e);else if("id"in e&&"operator"in e&&"value"in e)p.push(e);else{var t=d.getMongoCondition(e);if(t)p.push(u(e,t));else{var r=Object.keys(e)[0],i=e[r],o=d.getMongoOperator(i);void 0===o&&h.error("MongoParse","Invalid MongoDB query format");var n=d.settings.mongoRuleOperators[o];void 0===n&&h.error("UndefinedMongoOperator",'JSON Rule operation unknown for operator "{0}"',o);var l=n.call(d,i),s=d.getMongoDBFieldID(r,i),a=d.change("mongoToRule",{id:s,field:r,operator:l.op,value:l.val},e);p.push(a)}}}),d.change("mongoToGroup",{condition:t.replace("$","").toUpperCase(),rules:p},e)}(e,t)},setRulesFromMongo:function(e){this.setRules(this.getRulesFromMongo(e))},getMongoDBFieldID:function(t,e){var r=this.filters.filter(function(e){return e.field===t});return 1===r.length?r[0].id:this.change("getMongoDBFieldID",t,e)},getMongoOperator:function(e){if(null===e||"object"!=typeof e)return"$eq";if(void 0!==e.$gte&&void 0!==e.$lte)return"between";if(void 0!==e.$lt&&void 0!==e.$gt)return"not_between";var t=Object.keys(e).filter(function(e){return!!this.settings.mongoRuleOperators[e]}.bind(this));return 1===t.length?t[0]:void 0},getMongoCondition:function(e){for(var t=Object.keys(e),r=0,i=t.length;r<i;r++)if("$or"===t[r].toLowerCase()||"$and"===t[r].toLowerCase())return t[r]}}),c.define("not-group",function(r){var i=this;this.on("afterInit",function(){i.$el.on("click.queryBuilder","[data-not=group]",function(){var e=$(this).closest(c.selectors.group_container),t=i.getModel(e);t.not=!t.not}),i.model.on("update",function(e,t,r){t instanceof a&&"not"===r&&i.updateGroupNot(t)})}),this.on("afterAddGroup",function(e,t){t.__.not=!1}),r.disable_template||this.on("getGroupTemplate.filter",function(e){var t=$(e.value);t.find(c.selectors.condition_container).prepend('<button type="button" class="btn btn-xs btn-default" data-not="group"><i class="'+r.icon_unchecked+'"></i> '+i.translate("NOT")+"</button>"),e.value=t.prop("outerHTML")}),this.on("groupToJson.filter",function(e,t){e.value.not=t.not}),this.on("jsonToGroup.filter",function(e,t){e.value.not=!!t.not}),this.on("groupToSQL.filter",function(e,t){t.not&&(e.value="NOT ( "+e.value+" )")}),this.on("parseSQLNode.filter",function(e){e.value.name&&"NOT"==e.value.name.toUpperCase()&&(e.value=e.value.arguments.value[0],-1===["AND","OR"].indexOf(e.value.operation.toUpperCase())&&(e.value=new SQLParser.nodes.Op(i.settings.default_condition,e.value,null)),e.value.not=!0)}),this.on("sqlGroupsDistinct.filter",function(e,t,r,i){r.not&&0<i&&(e.value=!0)}),this.on("sqlToGroup.filter",function(e,t){e.value.not=!!t.not}),this.on("groupToMongo.filter",function(e,t){var r="$"+t.condition.toLowerCase();t.not&&e.value[r]&&(e.value={$nor:[e.value]})}),this.on("parseMongoNode.filter",function(e){var t=Object.keys(e.value);"$nor"==t[0]&&(e.value=e.value[t[0]][0],e.value.not=!0)}),this.on("mongoToGroup.filter",function(e,t){e.value.not=!!t.not})},{icon_unchecked:"glyphicon glyphicon-unchecked",icon_checked:"glyphicon glyphicon-check",disable_template:!1}),h.defineModelProperties(a,["not"]),c.selectors.group_not=c.selectors.group_header+" [data-not=group]",c.extend({updateGroupNot:function(e){var t=this.plugins["not-group"];e.$el.find(">"+c.selectors.group_not).toggleClass("active",e.not).find("i").attr("class",e.not?t.icon_checked:t.icon_unchecked),this.trigger("afterUpdateGroupNot",e),this.trigger("rulesChanged")}}),c.define("sortable",function(i){var o,n,l,s;"interact"in window||h.error("MissingLibrary",'interact.js is required to use "sortable" plugin. Get it here: http://interactjs.io'),void 0!==i.default_no_sortable&&(h.error(!1,"Config",'Sortable plugin : "default_no_sortable" options is deprecated, use standard "default_rule_flags" and "default_group_flags" instead'),this.settings.default_rule_flags.no_sortable=this.settings.default_group_flags.no_sortable=i.default_no_sortable),interact.dynamicDrop(!0),interact.pointerMoveTolerance(10),this.on("afterAddRule afterAddGroup",function(e,t){if(t!=o){var r=e.builder;i.inherit_no_sortable&&t.parent&&t.parent.flags.no_sortable&&(t.flags.no_sortable=!0),i.inherit_no_drop&&t.parent&&t.parent.flags.no_drop&&(t.flags.no_drop=!0),t.flags.no_sortable||interact(t.$el[0]).draggable({allowFrom:c.selectors.drag_handle,onstart:function(e){s=!1,l=r.getModel(e.target),n=l.$el.clone().appendTo(l.$el.parent()).width(l.$el.outerWidth()).addClass("dragging");var t=$('<div class="rule-placeholder">&nbsp;</div>').height(l.$el.outerHeight());o=l.parent.addRule(t,l.getPos()),l.$el.hide()},onmove:function(e){n[0].style.top=e.clientY-15+"px",n[0].style.left=e.clientX-15+"px"},onend:function(e){e.dropzone&&(u(l,$(e.relatedTarget),r),s=!0),n.remove(),n=void 0,o.drop(),o=void 0,l.$el.css("display",""),r.trigger("afterMove",l),r.trigger("rulesChanged")}}),t.flags.no_drop||(interact(t.$el[0]).dropzone({accept:c.selectors.rule_and_group_containers,ondragenter:function(e){u(o,$(e.target),r)},ondrop:function(e){s||u(l,$(e.target),r)}}),t instanceof a&&interact(t.$el.find(c.selectors.group_header)[0]).dropzone({accept:c.selectors.rule_and_group_containers,ondragenter:function(e){u(o,$(e.target),r)},ondrop:function(e){s||u(l,$(e.target),r)}}))}}),this.on("beforeDeleteRule beforeDeleteGroup",function(e,t){e.isDefaultPrevented()||(interact(t.$el[0]).unset(),t instanceof a&&interact(t.$el.find(c.selectors.group_header)[0]).unset())}),this.on("afterApplyRuleFlags afterApplyGroupFlags",function(e,t){t.flags.no_sortable&&t.$el.find(".drag-handle").remove()}),i.disable_template||(this.on("getGroupTemplate.filter",function(e,t){if(1<t){var r=$(e.value);r.find(c.selectors.condition_container).after('<div class="drag-handle"><i class="'+i.icon+'"></i></div>'),e.value=r.prop("outerHTML")}}),this.on("getRuleTemplate.filter",function(e){var t=$(e.value);t.find(c.selectors.rule_header).after('<div class="drag-handle"><i class="'+i.icon+'"></i></div>'),e.value=t.prop("outerHTML")}))},{inherit_no_sortable:!0,inherit_no_drop:!0,icon:"glyphicon glyphicon-sort",disable_template:!1}),c.selectors.rule_and_group_containers=c.selectors.rule_container+", "+c.selectors.group_container,c.selectors.drag_handle=".drag-handle",c.defaults({default_rule_flags:{no_sortable:!1,no_drop:!1},default_group_flags:{no_sortable:!1,no_drop:!1}}),c.define("sql-support",function(e){},{boolean_as_integer:!0}),c.defaults({sqlOperators:{equal:{op:"= ?"},not_equal:{op:"!= ?"},in:{op:"IN(?)",sep:", "},not_in:{op:"NOT IN(?)",sep:", "},less:{op:"< ?"},less_or_equal:{op:"<= ?"},greater:{op:"> ?"},greater_or_equal:{op:">= ?"},between:{op:"BETWEEN ?",sep:" AND "},not_between:{op:"NOT BETWEEN ?",sep:" AND "},begins_with:{op:"LIKE(?)",mod:"{0}%"},not_begins_with:{op:"NOT LIKE(?)",mod:"{0}%"},contains:{op:"LIKE(?)",mod:"%{0}%"},not_contains:{op:"NOT LIKE(?)",mod:"%{0}%"},ends_with:{op:"LIKE(?)",mod:"%{0}"},not_ends_with:{op:"NOT LIKE(?)",mod:"%{0}"},is_empty:{op:"= ''"},is_not_empty:{op:"!= ''"},is_null:{op:"IS NULL"},is_not_null:{op:"IS NOT NULL"}},sqlRuleOperator:{"=":function(e){return{val:e,op:""===e?"is_empty":"equal"}},"!=":function(e){return{val:e,op:""===e?"is_not_empty":"not_equal"}},LIKE:function(e){return"%"==e.slice(0,1)&&"%"==e.slice(-1)?{val:e.slice(1,-1),op:"contains"}:"%"==e.slice(0,1)?{val:e.slice(1),op:"ends_with"}:"%"==e.slice(-1)?{val:e.slice(0,-1),op:"begins_with"}:void h.error("SQLParse",'Invalid value for LIKE operator "{0}"',e)},"NOT LIKE":function(e){return"%"==e.slice(0,1)&&"%"==e.slice(-1)?{val:e.slice(1,-1),op:"not_contains"}:"%"==e.slice(0,1)?{val:e.slice(1),op:"not_ends_with"}:"%"==e.slice(-1)?{val:e.slice(0,-1),op:"not_begins_with"}:void h.error("SQLParse",'Invalid value for NOT LIKE operator "{0}"',e)},IN:function(e){return{val:e,op:"in"}},"NOT IN":function(e){return{val:e,op:"not_in"}},"<":function(e){return{val:e,op:"less"}},"<=":function(e){return{val:e,op:"less_or_equal"}},">":function(e){return{val:e,op:"greater"}},">=":function(e){return{val:e,op:"greater_or_equal"}},BETWEEN:function(e){return{val:e,op:"between"}},"NOT BETWEEN":function(e){return{val:e,op:"not_between"}},IS:function(e){return null!==e&&h.error("SQLParse","Invalid value for IS operator"),{val:null,op:"is_null"}},"IS NOT":function(e){return null!==e&&h.error("SQLParse","Invalid value for IS operator"),{val:null,op:"is_not_null"}}},sqlStatements:{question_mark:function(){var r=[];return{add:function(e,t){return r.push(t),"?"},run:function(){return r}}},numbered:function(r){(!r||1<r.length)&&(r="$");var i=0,o=[];return{add:function(e,t){return o.push(t),r+ ++i},run:function(){return o}}},named:function(i){(!i||1<i.length)&&(i=":");var o={},n={};return{add:function(e,t){o[e.field]||(o[e.field]=1);var r=e.field+"_"+o[e.field]++;return n[r]=t,i+r},run:function(){return n}}}},sqlRuleStatement:{question_mark:function(t){var r=0;return{parse:function(e){return"?"==e?t[r++]:e},esc:function(e){return e.replace(/\?/g,"'?'")}}},numbered:function(t,r){(!r||1<r.length)&&(r="$");var i=new RegExp("^\\"+r+"[0-9]+$"),o=new RegExp("\\"+r+"([0-9]+)","g");return{parse:function(e){return i.test(e)?t[e.slice(1)-1]:e},esc:function(e){return e.replace(o,"'"+("$"==r?"$$":r)+"$1'")}}},named:function(t,r){(!r||1<r.length)&&(r=":");var i=new RegExp("^\\"+r),o=new RegExp("\\"+r+"("+Object.keys(t).join("|")+")","g");return{parse:function(e){return i.test(e)?t[e.slice(1)]:e},esc:function(e){return e.replace(o,"'"+("$"==r?"$$":r)+"$1'")}}}}}),c.extend({getSQL:function(a,u,e){if(!(e=void 0===e?this.getRules():e))return null;u=u?"\n":" ";var p=this.getPluginOptions("sql-support","boolean_as_integer");if(!0===a&&(a="question_mark"),"string"==typeof a){var t=n(a);a=this.settings.sqlStatements[t[1]](t[2])}var d=this,r=function l(e){if(e.condition||(e.condition=d.settings.default_condition),-1===["AND","OR"].indexOf(e.condition.toUpperCase())&&h.error("UndefinedSQLCondition",'Unable to build SQL query with condition "{0}"',e.condition),!e.rules)return"";var s=[];e.rules.forEach(function(r){if(r.rules&&0<r.rules.length)s.push("("+u+l(r)+u+")"+u);else{var i=d.settings.sqlOperators[r.operator],e=d.getOperatorByType(r.operator),o="";void 0===i&&h.error("UndefinedSQLOperator",'Unknown SQL operation for operator "{0}"',r.operator),0!==e.nb_inputs&&(r.value instanceof Array||(r.value=[r.value]),r.value.forEach(function(e,t){0<t&&(o+=i.sep),"boolean"==r.type&&p?e=e?1:0:a||"integer"===r.type||"double"===r.type||"boolean"===r.type||(e=h.escapeString(e)),i.mod&&(e=h.fmt(i.mod,e)),a?o+=a.add(r,e):("string"==typeof e&&(e="'"+e+"'"),o+=e)}));var t=function(e){return i.op.replace("?",function(){return e})},n=d.change("getSQLField",r.field,r)+" "+t(o);s.push(d.change("ruleToSQL",n,r,o,t))}});var t=s.join(" "+e.condition+u);return d.change("groupToSQL",t,e)}(e);return a?{sql:r,params:a.run()}:{sql:r}},getRulesFromSQL:function(e,c){"SQLParser"in window||h.error("MissingLibrary","SQLParser is required to parse SQL queries. Get it here https://github.com/mistic100/sql-parser");var f=this;if("string"==typeof e&&(e={sql:e}),!0===c&&(c="question_mark"),"string"==typeof c){var t=n(c);c=this.settings.sqlRuleStatement[t[1]](e.params,t[2])}c&&(e.sql=c.esc(e.sql)),0!==e.sql.toUpperCase().indexOf("SELECT")&&(e.sql="SELECT * FROM table WHERE "+e.sql);var r=SQLParser.parse(e.sql);r.where||h.error("SQLParse","No WHERE clause found");var i=f.change("parseSQLNode",r.where.conditions);if("rules"in i&&"condition"in i)return i;if("id"in i&&"operator"in i&&"value"in i)return{condition:this.settings.default_condition,rules:[i]};var o=f.change("sqlToGroup",{condition:this.settings.default_condition,rules:[]},i),g=o;return function e(t,r){if(null!==t)if("rules"in(t=f.change("parseSQLNode",t))&&"condition"in t)g.rules.push(t);else if("id"in t&&"operator"in t&&"value"in t)g.rules.push(t);else if("left"in t&&"right"in t&&"operation"in t||h.error("SQLParse","Unable to parse WHERE clause"),-1!==["AND","OR"].indexOf(t.operation.toUpperCase())){if(f.change("sqlGroupsDistinct",0<r&&g.condition!=t.operation.toUpperCase(),g,t,r)){var i=f.change("sqlToGroup",{condition:f.settings.default_condition,rules:[]},t);g.rules.push(i),g=i}g.condition=t.operation.toUpperCase(),r++;var o=g;e(t.left,r),g=o,e(t.right,r)}else{var n;$.isPlainObject(t.right.value)&&h.error("SQLParse","Value format not supported for {0}.",t.left.value),n=$.isArray(t.right.value)?t.right.value.map(function(e){return e.value}):t.right.value,c&&(n=$.isArray(n)?n.map(c.parse):c.parse(n));var l=t.operation.toUpperCase();"<>"==l&&(l="!=");var s=f.settings.sqlRuleOperator[l];void 0===s&&h.error("UndefinedSQLOperator",'Invalid SQL operation "{0}".',t.operation);var a,u=s.call(this,n,t.operation);"values"in t.left?a=t.left.values.join("."):"value"in t.left?a=t.left.value:h.error("SQLParse","Cannot find field name in {0}",JSON.stringify(t.left));var p=f.getSQLFieldID(a,n),d=f.change("sqlToRule",{id:p,field:a,operator:u.op,value:u.val},t);g.rules.push(d)}}(i,0),o},setRulesFromSQL:function(e,t){this.setRules(this.getRulesFromSQL(e,t))},getSQLFieldID:function(t,e){var r=this.filters.filter(function(e){return e.field.toLowerCase()===t.toLowerCase()});return 1===r.length?r[0].id:this.change("getSQLFieldID",t,e)}}),c.define("unique-filter",function(){this.status.used_filters={},this.on("afterUpdateRuleFilter",this.updateDisabledFilters),this.on("afterDeleteRule",this.updateDisabledFilters),this.on("afterCreateRuleFilters",this.applyDisabledFilters),this.on("afterReset",this.clearDisabledFilters),this.on("afterClear",this.clearDisabledFilters),this.on("getDefaultFilter.filter",function(t,r){var i=t.builder;(i.updateDisabledFilters(),t.value.id in i.status.used_filters)&&(i.filters.some(function(e){if(!(e.id in i.status.used_filters)||0<i.status.used_filters[e.id].length&&-1===i.status.used_filters[e.id].indexOf(r.parent))return t.value=e,!0})||(h.error(!1,"UniqueFilter","No more non-unique filters available"),t.value=void 0))})}),c.extend({updateDisabledFilters:function(e){var r=e?e.builder:this;r.status.used_filters={},r.model&&(!function t(e){e.each(function(e){e.filter&&e.filter.unique&&(r.status.used_filters[e.filter.id]||(r.status.used_filters[e.filter.id]=[]),"group"==e.filter.unique&&r.status.used_filters[e.filter.id].push(e.parent))},function(e){t(e)})}(r.model.root),r.applyDisabledFilters(e))},clearDisabledFilters:function(e){var t=e?e.builder:this;t.status.used_filters={},t.applyDisabledFilters(e)},applyDisabledFilters:function(e){var r=e?e.builder:this;r.$el.find(c.selectors.filter_container+" option").prop("disabled",!1),$.each(r.status.used_filters,function(t,e){0===e.length?r.$el.find(c.selectors.filter_container+' option[value="'+t+'"]:not(:selected)').prop("disabled",!0):e.forEach(function(e){e.each(function(e){e.$el.find(c.selectors.filter_container+' option[value="'+t+'"]:not(:selected)').prop("disabled",!0)})})}),r.settings.plugins&&r.settings.plugins["bt-selectpicker"]&&r.$el.find(c.selectors.rule_filter).selectpicker("render")}}),c.regional.en={__locale:"English (en)",__author:'Damien "Mistic" Sorel, http://www.strangeplanet.fr',add_rule:"Add rule",add_group:"Add group",delete_rule:"Delete",delete_group:"Delete",conditions:{AND:"AND",OR:"OR"},operators:{equal:"equal",not_equal:"not equal",in:"in",not_in:"not in",less:"less",less_or_equal:"less or equal",greater:"greater",greater_or_equal:"greater or equal",between:"between",not_between:"not between",begins_with:"begins with",not_begins_with:"doesn't begin with",contains:"contains",not_contains:"doesn't contain",ends_with:"ends with",not_ends_with:"doesn't end with",is_empty:"is empty",is_not_empty:"is not empty",is_null:"is null",is_not_null:"is not null"},errors:{no_filter:"No filter selected",empty_group:"The group is empty",radio_empty:"No value selected",checkbox_empty:"No value selected",select_empty:"No value selected",string_empty:"Empty value",string_exceed_min_length:"Must contain at least {0} characters",string_exceed_max_length:"Must not contain more than {0} characters",string_invalid_format:"Invalid format ({0})",number_nan:"Not a number",number_not_integer:"Not an integer",number_not_double:"Not a real number",number_exceed_min:"Must be greater than {0}",number_exceed_max:"Must be lower than {0}",number_wrong_step:"Must be a multiple of {0}",number_between_invalid:"Invalid values, {0} is greater than {1}",datetime_empty:"Empty value",datetime_invalid:"Invalid date format ({0})",datetime_exceed_min:"Must be after {0}",datetime_exceed_max:"Must be before {0}",datetime_between_invalid:"Invalid values, {0} is greater than {1}",boolean_not_valid:"Not a boolean",operator_not_multiple:'Operator "{1}" cannot accept multiple values'},invert:"Invert",NOT:"NOT"},c.defaults({lang_code:"en"}),c});
\ No newline at end of file
diff --git a/assets/js/query-builder.standalone.js b/assets/js/query-builder.standalone.js
new file mode 100644
index 00000000..c899f05b
--- /dev/null
+++ b/assets/js/query-builder.standalone.js
@@ -0,0 +1,6477 @@
+/*!
+ * jQuery.extendext 0.1.2
+ *
+ * Copyright 2014-2016 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (http://opensource.org/licenses/MIT)
+ * 
+ * Based on jQuery.extend by jQuery Foundation, Inc. and other contributors
+ */
+
+(function (root, factory) {
+    if (typeof define === 'function' && define.amd) {
+        define('jQuery.extendext', ['jquery'], factory);
+    }
+    else if (typeof module === 'object' && module.exports) {
+        module.exports = factory(require('jquery'));
+    }
+    else {
+        factory(root.jQuery);
+    }
+}(this, function ($) {
+    "use strict";
+
+    $.extendext = function () {
+        var options, name, src, copy, copyIsArray, clone,
+            target = arguments[0] || {},
+            i = 1,
+            length = arguments.length,
+            deep = false,
+            arrayMode = 'default';
+
+        // Handle a deep copy situation
+        if (typeof target === "boolean") {
+            deep = target;
+
+            // Skip the boolean and the target
+            target = arguments[i++] || {};
+        }
+
+        // Handle array mode parameter
+        if (typeof target === "string") {
+            arrayMode = target.toLowerCase();
+            if (arrayMode !== 'concat' && arrayMode !== 'replace' && arrayMode !== 'extend') {
+                arrayMode = 'default';
+            }
+
+            // Skip the string param
+            target = arguments[i++] || {};
+        }
+
+        // Handle case when target is a string or something (possible in deep copy)
+        if (typeof target !== "object" && !$.isFunction(target)) {
+            target = {};
+        }
+
+        // Extend jQuery itself if only one argument is passed
+        if (i === length) {
+            target = this;
+            i--;
+        }
+
+        for (; i < length; i++) {
+            // Only deal with non-null/undefined values
+            if ((options = arguments[i]) !== null) {
+                // Special operations for arrays
+                if ($.isArray(options) && arrayMode !== 'default') {
+                    clone = target && $.isArray(target) ? target : [];
+
+                    switch (arrayMode) {
+                    case 'concat':
+                        target = clone.concat($.extend(deep, [], options));
+                        break;
+
+                    case 'replace':
+                        target = $.extend(deep, [], options);
+                        break;
+
+                    case 'extend':
+                        options.forEach(function (e, i) {
+                            if (typeof e === 'object') {
+                                var type = $.isArray(e) ? [] : {};
+                                clone[i] = $.extendext(deep, arrayMode, clone[i] || type, e);
+
+                            } else if (clone.indexOf(e) === -1) {
+                                clone.push(e);
+                            }
+                        });
+
+                        target = clone;
+                        break;
+                    }
+
+                } else {
+                    // Extend the base object
+                    for (name in options) {
+                        src = target[name];
+                        copy = options[name];
+
+                        // Prevent never-ending loop
+                        if (target === copy) {
+                            continue;
+                        }
+
+                        // Recurse if we're merging plain objects or arrays
+                        if (deep && copy && ( $.isPlainObject(copy) ||
+                            (copyIsArray = $.isArray(copy)) )) {
+
+                            if (copyIsArray) {
+                                copyIsArray = false;
+                                clone = src && $.isArray(src) ? src : [];
+
+                            } else {
+                                clone = src && $.isPlainObject(src) ? src : {};
+                            }
+
+                            // Never move original objects, clone them
+                            target[name] = $.extendext(deep, arrayMode, clone, copy);
+
+                            // Don't bring in undefined values
+                        } else if (copy !== undefined) {
+                            target[name] = copy;
+                        }
+                    }
+                }
+            }
+        }
+
+        // Return the modified object
+        return target;
+    };
+}));
+
+// doT.js
+// 2011-2014, Laura Doktorova, https://github.com/olado/doT
+// Licensed under the MIT license.
+
+(function () {
+	"use strict";
+
+	var doT = {
+		name: "doT",
+		version: "1.1.1",
+		templateSettings: {
+			evaluate:    /\{\{([\s\S]+?(\}?)+)\}\}/g,
+			interpolate: /\{\{=([\s\S]+?)\}\}/g,
+			encode:      /\{\{!([\s\S]+?)\}\}/g,
+			use:         /\{\{#([\s\S]+?)\}\}/g,
+			useParams:   /(^|[^\w$])def(?:\.|\[[\'\"])([\w$\.]+)(?:[\'\"]\])?\s*\:\s*([\w$\.]+|\"[^\"]+\"|\'[^\']+\'|\{[^\}]+\})/g,
+			define:      /\{\{##\s*([\w\.$]+)\s*(\:|=)([\s\S]+?)#\}\}/g,
+			defineParams:/^\s*([\w$]+):([\s\S]+)/,
+			conditional: /\{\{\?(\?)?\s*([\s\S]*?)\s*\}\}/g,
+			iterate:     /\{\{~\s*(?:\}\}|([\s\S]+?)\s*\:\s*([\w$]+)\s*(?:\:\s*([\w$]+))?\s*\}\})/g,
+			varname:	"it",
+			strip:		true,
+			append:		true,
+			selfcontained: false,
+			doNotSkipEncoded: false
+		},
+		template: undefined, //fn, compile template
+		compile:  undefined, //fn, for express
+		log: true
+	}, _globals;
+
+	doT.encodeHTMLSource = function(doNotSkipEncoded) {
+		var encodeHTMLRules = { "&": "&#38;", "<": "&#60;", ">": "&#62;", '"': "&#34;", "'": "&#39;", "/": "&#47;" },
+			matchHTML = doNotSkipEncoded ? /[&<>"'\/]/g : /&(?!#?\w+;)|<|>|"|'|\//g;
+		return function(code) {
+			return code ? code.toString().replace(matchHTML, function(m) {return encodeHTMLRules[m] || m;}) : "";
+		};
+	};
+
+	_globals = (function(){ return this || (0,eval)("this"); }());
+
+	/* istanbul ignore else */
+	if (typeof module !== "undefined" && module.exports) {
+		module.exports = doT;
+	} else if (typeof define === "function" && define.amd) {
+		define('doT', function(){return doT;});
+	} else {
+		_globals.doT = doT;
+	}
+
+	var startend = {
+		append: { start: "'+(",      end: ")+'",      startencode: "'+encodeHTML(" },
+		split:  { start: "';out+=(", end: ");out+='", startencode: "';out+=encodeHTML(" }
+	}, skip = /$^/;
+
+	function resolveDefs(c, block, def) {
+		return ((typeof block === "string") ? block : block.toString())
+		.replace(c.define || skip, function(m, code, assign, value) {
+			if (code.indexOf("def.") === 0) {
+				code = code.substring(4);
+			}
+			if (!(code in def)) {
+				if (assign === ":") {
+					if (c.defineParams) value.replace(c.defineParams, function(m, param, v) {
+						def[code] = {arg: param, text: v};
+					});
+					if (!(code in def)) def[code]= value;
+				} else {
+					new Function("def", "def['"+code+"']=" + value)(def);
+				}
+			}
+			return "";
+		})
+		.replace(c.use || skip, function(m, code) {
+			if (c.useParams) code = code.replace(c.useParams, function(m, s, d, param) {
+				if (def[d] && def[d].arg && param) {
+					var rw = (d+":"+param).replace(/'|\\/g, "_");
+					def.__exp = def.__exp || {};
+					def.__exp[rw] = def[d].text.replace(new RegExp("(^|[^\\w$])" + def[d].arg + "([^\\w$])", "g"), "$1" + param + "$2");
+					return s + "def.__exp['"+rw+"']";
+				}
+			});
+			var v = new Function("def", "return " + code)(def);
+			return v ? resolveDefs(c, v, def) : v;
+		});
+	}
+
+	function unescape(code) {
+		return code.replace(/\\('|\\)/g, "$1").replace(/[\r\t\n]/g, " ");
+	}
+
+	doT.template = function(tmpl, c, def) {
+		c = c || doT.templateSettings;
+		var cse = c.append ? startend.append : startend.split, needhtmlencode, sid = 0, indv,
+			str  = (c.use || c.define) ? resolveDefs(c, tmpl, def || {}) : tmpl;
+
+		str = ("var out='" + (c.strip ? str.replace(/(^|\r|\n)\t* +| +\t*(\r|\n|$)/g," ")
+					.replace(/\r|\n|\t|\/\*[\s\S]*?\*\//g,""): str)
+			.replace(/'|\\/g, "\\$&")
+			.replace(c.interpolate || skip, function(m, code) {
+				return cse.start + unescape(code) + cse.end;
+			})
+			.replace(c.encode || skip, function(m, code) {
+				needhtmlencode = true;
+				return cse.startencode + unescape(code) + cse.end;
+			})
+			.replace(c.conditional || skip, function(m, elsecase, code) {
+				return elsecase ?
+					(code ? "';}else if(" + unescape(code) + "){out+='" : "';}else{out+='") :
+					(code ? "';if(" + unescape(code) + "){out+='" : "';}out+='");
+			})
+			.replace(c.iterate || skip, function(m, iterate, vname, iname) {
+				if (!iterate) return "';} } out+='";
+				sid+=1; indv=iname || "i"+sid; iterate=unescape(iterate);
+				return "';var arr"+sid+"="+iterate+";if(arr"+sid+"){var "+vname+","+indv+"=-1,l"+sid+"=arr"+sid+".length-1;while("+indv+"<l"+sid+"){"
+					+vname+"=arr"+sid+"["+indv+"+=1];out+='";
+			})
+			.replace(c.evaluate || skip, function(m, code) {
+				return "';" + unescape(code) + "out+='";
+			})
+			+ "';return out;")
+			.replace(/\n/g, "\\n").replace(/\t/g, '\\t').replace(/\r/g, "\\r")
+			.replace(/(\s|;|\}|^|\{)out\+='';/g, '$1').replace(/\+''/g, "");
+			//.replace(/(\s|;|\}|^|\{)out\+=''\+/g,'$1out+=');
+
+		if (needhtmlencode) {
+			if (!c.selfcontained && _globals && !_globals._encodeHTML) _globals._encodeHTML = doT.encodeHTMLSource(c.doNotSkipEncoded);
+			str = "var encodeHTML = typeof _encodeHTML !== 'undefined' ? _encodeHTML : ("
+				+ doT.encodeHTMLSource.toString() + "(" + (c.doNotSkipEncoded || '') + "));"
+				+ str;
+		}
+		try {
+			return new Function(c.varname, str);
+		} catch (e) {
+			/* istanbul ignore else */
+			if (typeof console !== "undefined") console.log("Could not create a template function: " + str);
+			throw e;
+		}
+	};
+
+	doT.compile = function(tmpl, def) {
+		return doT.template(tmpl, null, def);
+	};
+}());
+
+
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Copyright 2014-2018 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+(function(root, factory) {
+    if (typeof define == 'function' && define.amd) {
+        define('query-builder', ['jquery', 'dot/doT', 'jquery-extendext'], factory);
+    }
+    else if (typeof module === 'object' && module.exports) {
+        module.exports = factory(require('jquery'), require('dot/doT'), require('jquery-extendext'));
+    }
+    else {
+        factory(root.jQuery, root.doT);
+    }
+}(this, function($, doT) {
+"use strict";
+
+/**
+ * @typedef {object} Filter
+ * @memberof QueryBuilder
+ * @description See {@link http://querybuilder.js.org/index.html#filters}
+ */
+
+/**
+ * @typedef {object} Operator
+ * @memberof QueryBuilder
+ * @description See {@link http://querybuilder.js.org/index.html#operators}
+ */
+
+/**
+ * @param {jQuery} $el
+ * @param {object} options - see {@link http://querybuilder.js.org/#options}
+ * @constructor
+ */
+var QueryBuilder = function($el, options) {
+    $el[0].queryBuilder = this;
+
+    /**
+     * Element container
+     * @member {jQuery}
+     * @readonly
+     */
+    this.$el = $el;
+
+    /**
+     * Configuration object
+     * @member {object}
+     * @readonly
+     */
+    this.settings = $.extendext(true, 'replace', {}, QueryBuilder.DEFAULTS, options);
+
+    /**
+     * Internal model
+     * @member {Model}
+     * @readonly
+     */
+    this.model = new Model();
+
+    /**
+     * Internal status
+     * @member {object}
+     * @property {string} id - id of the container
+     * @property {boolean} generated_id - if the container id has been generated
+     * @property {int} group_id - current group id
+     * @property {int} rule_id - current rule id
+     * @property {boolean} has_optgroup - if filters have optgroups
+     * @property {boolean} has_operator_optgroup - if operators have optgroups
+     * @readonly
+     * @private
+     */
+    this.status = {
+        id: null,
+        generated_id: false,
+        group_id: 0,
+        rule_id: 0,
+        has_optgroup: false,
+        has_operator_optgroup: false
+    };
+
+    /**
+     * List of filters
+     * @member {QueryBuilder.Filter[]}
+     * @readonly
+     */
+    this.filters = this.settings.filters;
+
+    /**
+     * List of icons
+     * @member {object.<string, string>}
+     * @readonly
+     */
+    this.icons = this.settings.icons;
+
+    /**
+     * List of operators
+     * @member {QueryBuilder.Operator[]}
+     * @readonly
+     */
+    this.operators = this.settings.operators;
+
+    /**
+     * List of templates
+     * @member {object.<string, function>}
+     * @readonly
+     */
+    this.templates = this.settings.templates;
+
+    /**
+     * Plugins configuration
+     * @member {object.<string, object>}
+     * @readonly
+     */
+    this.plugins = this.settings.plugins;
+
+    /**
+     * Translations object
+     * @member {object}
+     * @readonly
+     */
+    this.lang = null;
+
+    // translations : english << 'lang_code' << custom
+    if (QueryBuilder.regional['en'] === undefined) {
+        Utils.error('Config', '"i18n/en.js" not loaded.');
+    }
+    this.lang = $.extendext(true, 'replace', {}, QueryBuilder.regional['en'], QueryBuilder.regional[this.settings.lang_code], this.settings.lang);
+
+    // "allow_groups" can be boolean or int
+    if (this.settings.allow_groups === false) {
+        this.settings.allow_groups = 0;
+    }
+    else if (this.settings.allow_groups === true) {
+        this.settings.allow_groups = -1;
+    }
+
+    // init templates
+    Object.keys(this.templates).forEach(function(tpl) {
+        if (!this.templates[tpl]) {
+            this.templates[tpl] = QueryBuilder.templates[tpl];
+        }
+        if (typeof this.templates[tpl] == 'string') {
+            this.templates[tpl] = doT.template(this.templates[tpl]);
+        }
+    }, this);
+
+    // ensure we have a container id
+    if (!this.$el.attr('id')) {
+        this.$el.attr('id', 'qb_' + Math.floor(Math.random() * 99999));
+        this.status.generated_id = true;
+    }
+    this.status.id = this.$el.attr('id');
+
+    // INIT
+    this.$el.addClass('query-builder form-inline');
+
+    this.filters = this.checkFilters(this.filters);
+    this.operators = this.checkOperators(this.operators);
+    this.bindEvents();
+    this.initPlugins();
+};
+
+$.extend(QueryBuilder.prototype, /** @lends QueryBuilder.prototype */ {
+    /**
+     * Triggers an event on the builder container
+     * @param {string} type
+     * @returns {$.Event}
+     */
+    trigger: function(type) {
+        var event = new $.Event(this._tojQueryEvent(type), {
+            builder: this
+        });
+
+        this.$el.triggerHandler(event, Array.prototype.slice.call(arguments, 1));
+
+        return event;
+    },
+
+    /**
+     * Triggers an event on the builder container and returns the modified value
+     * @param {string} type
+     * @param {*} value
+     * @returns {*}
+     */
+    change: function(type, value) {
+        var event = new $.Event(this._tojQueryEvent(type, true), {
+            builder: this,
+            value: value
+        });
+
+        this.$el.triggerHandler(event, Array.prototype.slice.call(arguments, 2));
+
+        return event.value;
+    },
+
+    /**
+     * Attaches an event listener on the builder container
+     * @param {string} type
+     * @param {function} cb
+     * @returns {QueryBuilder}
+     */
+    on: function(type, cb) {
+        this.$el.on(this._tojQueryEvent(type), cb);
+        return this;
+    },
+
+    /**
+     * Removes an event listener from the builder container
+     * @param {string} type
+     * @param {function} [cb]
+     * @returns {QueryBuilder}
+     */
+    off: function(type, cb) {
+        this.$el.off(this._tojQueryEvent(type), cb);
+        return this;
+    },
+
+    /**
+     * Attaches an event listener called once on the builder container
+     * @param {string} type
+     * @param {function} cb
+     * @returns {QueryBuilder}
+     */
+    once: function(type, cb) {
+        this.$el.one(this._tojQueryEvent(type), cb);
+        return this;
+    },
+
+    /**
+     * Appends `.queryBuilder` and optionally `.filter` to the events names
+     * @param {string} name
+     * @param {boolean} [filter=false]
+     * @returns {string}
+     * @private
+     */
+    _tojQueryEvent: function(name, filter) {
+        return name.split(' ').map(function(type) {
+            return type + '.queryBuilder' + (filter ? '.filter' : '');
+        }).join(' ');
+    }
+});
+
+
+/**
+ * Allowed types and their internal representation
+ * @type {object.<string, string>}
+ * @readonly
+ * @private
+ */
+QueryBuilder.types = {
+    'string':   'string',
+    'integer':  'number',
+    'double':   'number',
+    'date':     'datetime',
+    'time':     'datetime',
+    'datetime': 'datetime',
+    'boolean':  'boolean'
+};
+
+/**
+ * Allowed inputs
+ * @type {string[]}
+ * @readonly
+ * @private
+ */
+QueryBuilder.inputs = [
+    'text',
+    'number',
+    'textarea',
+    'radio',
+    'checkbox',
+    'select'
+];
+
+/**
+ * Runtime modifiable options with `setOptions` method
+ * @type {string[]}
+ * @readonly
+ * @private
+ */
+QueryBuilder.modifiable_options = [
+    'display_errors',
+    'allow_groups',
+    'allow_empty',
+    'default_condition',
+    'default_filter'
+];
+
+/**
+ * CSS selectors for common components
+ * @type {object.<string, string>}
+ * @readonly
+ */
+QueryBuilder.selectors = {
+    group_container:      '.rules-group-container',
+    rule_container:       '.rule-container',
+    filter_container:     '.rule-filter-container',
+    operator_container:   '.rule-operator-container',
+    value_container:      '.rule-value-container',
+    error_container:      '.error-container',
+    condition_container:  '.rules-group-header .group-conditions',
+
+    rule_header:          '.rule-header',
+    group_header:         '.rules-group-header',
+    group_actions:        '.group-actions',
+    rule_actions:         '.rule-actions',
+
+    rules_list:           '.rules-group-body>.rules-list',
+
+    group_condition:      '.rules-group-header [name$=_cond]',
+    rule_filter:          '.rule-filter-container [name$=_filter]',
+    rule_operator:        '.rule-operator-container [name$=_operator]',
+    rule_value:           '.rule-value-container [name*=_value_]',
+
+    add_rule:             '[data-add=rule]',
+    delete_rule:          '[data-delete=rule]',
+    add_group:            '[data-add=group]',
+    delete_group:         '[data-delete=group]'
+};
+
+/**
+ * Template strings (see template.js)
+ * @type {object.<string, string>}
+ * @readonly
+ */
+QueryBuilder.templates = {};
+
+/**
+ * Localized strings (see i18n/)
+ * @type {object.<string, object>}
+ * @readonly
+ */
+QueryBuilder.regional = {};
+
+/**
+ * Default operators
+ * @type {object.<string, object>}
+ * @readonly
+ */
+QueryBuilder.OPERATORS = {
+    equal:            { type: 'equal',            nb_inputs: 1, multiple: false, apply_to: ['string', 'number', 'datetime', 'boolean'] },
+    not_equal:        { type: 'not_equal',        nb_inputs: 1, multiple: false, apply_to: ['string', 'number', 'datetime', 'boolean'] },
+    in:               { type: 'in',               nb_inputs: 1, multiple: true,  apply_to: ['string', 'number', 'datetime'] },
+    not_in:           { type: 'not_in',           nb_inputs: 1, multiple: true,  apply_to: ['string', 'number', 'datetime'] },
+    less:             { type: 'less',             nb_inputs: 1, multiple: false, apply_to: ['number', 'datetime'] },
+    less_or_equal:    { type: 'less_or_equal',    nb_inputs: 1, multiple: false, apply_to: ['number', 'datetime'] },
+    greater:          { type: 'greater',          nb_inputs: 1, multiple: false, apply_to: ['number', 'datetime'] },
+    greater_or_equal: { type: 'greater_or_equal', nb_inputs: 1, multiple: false, apply_to: ['number', 'datetime'] },
+    between:          { type: 'between',          nb_inputs: 2, multiple: false, apply_to: ['number', 'datetime'] },
+    not_between:      { type: 'not_between',      nb_inputs: 2, multiple: false, apply_to: ['number', 'datetime'] },
+    begins_with:      { type: 'begins_with',      nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    not_begins_with:  { type: 'not_begins_with',  nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    contains:         { type: 'contains',         nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    not_contains:     { type: 'not_contains',     nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    ends_with:        { type: 'ends_with',        nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    not_ends_with:    { type: 'not_ends_with',    nb_inputs: 1, multiple: false, apply_to: ['string'] },
+    is_empty:         { type: 'is_empty',         nb_inputs: 0, multiple: false, apply_to: ['string'] },
+    is_not_empty:     { type: 'is_not_empty',     nb_inputs: 0, multiple: false, apply_to: ['string'] },
+    is_null:          { type: 'is_null',          nb_inputs: 0, multiple: false, apply_to: ['string', 'number', 'datetime', 'boolean'] },
+    is_not_null:      { type: 'is_not_null',      nb_inputs: 0, multiple: false, apply_to: ['string', 'number', 'datetime', 'boolean'] }
+};
+
+/**
+ * Default configuration
+ * @type {object}
+ * @readonly
+ */
+QueryBuilder.DEFAULTS = {
+    filters: [],
+    plugins: [],
+
+    sort_filters: false,
+    display_errors: true,
+    allow_groups: -1,
+    allow_empty: false,
+    conditions: ['AND', 'OR'],
+    default_condition: 'AND',
+    inputs_separator: ' , ',
+    select_placeholder: '------',
+    display_empty_filter: true,
+    default_filter: null,
+    optgroups: {},
+
+    default_rule_flags: {
+        filter_readonly: false,
+        operator_readonly: false,
+        value_readonly: false,
+        no_delete: false
+    },
+
+    default_group_flags: {
+        condition_readonly: false,
+        no_add_rule: false,
+        no_add_group: false,
+        no_delete: false
+    },
+
+    templates: {
+        group: null,
+        rule: null,
+        filterSelect: null,
+        operatorSelect: null,
+        ruleValueSelect: null
+    },
+
+    lang_code: 'en',
+    lang: {},
+
+    operators: [
+        'equal',
+        'not_equal',
+        'in',
+        'not_in',
+        'less',
+        'less_or_equal',
+        'greater',
+        'greater_or_equal',
+        'between',
+        'not_between',
+        'begins_with',
+        'not_begins_with',
+        'contains',
+        'not_contains',
+        'ends_with',
+        'not_ends_with',
+        'is_empty',
+        'is_not_empty',
+        'is_null',
+        'is_not_null'
+    ],
+
+    icons: {
+        add_group:    'glyphicon glyphicon-plus-sign',
+        add_rule:     'glyphicon glyphicon-plus',
+        remove_group: 'glyphicon glyphicon-remove',
+        remove_rule:  'glyphicon glyphicon-remove',
+        error:        'glyphicon glyphicon-warning-sign'
+    }
+};
+
+
+/**
+ * @module plugins
+ */
+
+/**
+ * Definition of available plugins
+ * @type {object.<String, object>}
+ */
+QueryBuilder.plugins = {};
+
+/**
+ * Gets or extends the default configuration
+ * @param {object} [options] - new configuration
+ * @returns {undefined|object} nothing or configuration object (copy)
+ */
+QueryBuilder.defaults = function(options) {
+    if (typeof options == 'object') {
+        $.extendext(true, 'replace', QueryBuilder.DEFAULTS, options);
+    }
+    else if (typeof options == 'string') {
+        if (typeof QueryBuilder.DEFAULTS[options] == 'object') {
+            return $.extend(true, {}, QueryBuilder.DEFAULTS[options]);
+        }
+        else {
+            return QueryBuilder.DEFAULTS[options];
+        }
+    }
+    else {
+        return $.extend(true, {}, QueryBuilder.DEFAULTS);
+    }
+};
+
+/**
+ * Registers a new plugin
+ * @param {string} name
+ * @param {function} fct - init function
+ * @param {object} [def] - default options
+ */
+QueryBuilder.define = function(name, fct, def) {
+    QueryBuilder.plugins[name] = {
+        fct: fct,
+        def: def || {}
+    };
+};
+
+/**
+ * Adds new methods to QueryBuilder prototype
+ * @param {object.<string, function>} methods
+ */
+QueryBuilder.extend = function(methods) {
+    $.extend(QueryBuilder.prototype, methods);
+};
+
+/**
+ * Initializes plugins for an instance
+ * @throws ConfigError
+ * @private
+ */
+QueryBuilder.prototype.initPlugins = function() {
+    if (!this.plugins) {
+        return;
+    }
+
+    if ($.isArray(this.plugins)) {
+        var tmp = {};
+        this.plugins.forEach(function(plugin) {
+            tmp[plugin] = null;
+        });
+        this.plugins = tmp;
+    }
+
+    Object.keys(this.plugins).forEach(function(plugin) {
+        if (plugin in QueryBuilder.plugins) {
+            this.plugins[plugin] = $.extend(true, {},
+                QueryBuilder.plugins[plugin].def,
+                this.plugins[plugin] || {}
+            );
+
+            QueryBuilder.plugins[plugin].fct.call(this, this.plugins[plugin]);
+        }
+        else {
+            Utils.error('Config', 'Unable to find plugin "{0}"', plugin);
+        }
+    }, this);
+};
+
+/**
+ * Returns the config of a plugin, if the plugin is not loaded, returns the default config.
+ * @param {string} name
+ * @param {string} [property]
+ * @throws ConfigError
+ * @returns {*}
+ */
+QueryBuilder.prototype.getPluginOptions = function(name, property) {
+    var plugin;
+    if (this.plugins && this.plugins[name]) {
+        plugin = this.plugins[name];
+    }
+    else if (QueryBuilder.plugins[name]) {
+        plugin = QueryBuilder.plugins[name].def;
+    }
+
+    if (plugin) {
+        if (property) {
+            return plugin[property];
+        }
+        else {
+            return plugin;
+        }
+    }
+    else {
+        Utils.error('Config', 'Unable to find plugin "{0}"', name);
+    }
+};
+
+
+/**
+ * Final initialisation of the builder
+ * @param {object} [rules]
+ * @fires QueryBuilder.afterInit
+ * @private
+ */
+QueryBuilder.prototype.init = function(rules) {
+    /**
+     * When the initilization is done, just before creating the root group
+     * @event afterInit
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterInit');
+
+    if (rules) {
+        this.setRules(rules);
+        delete this.settings.rules;
+    }
+    else {
+        this.setRoot(true);
+    }
+};
+
+/**
+ * Checks the configuration of each filter
+ * @param {QueryBuilder.Filter[]} filters
+ * @returns {QueryBuilder.Filter[]}
+ * @throws ConfigError
+ */
+QueryBuilder.prototype.checkFilters = function(filters) {
+    var definedFilters = [];
+
+    if (!filters || filters.length === 0) {
+        Utils.error('Config', 'Missing filters list');
+    }
+
+    filters.forEach(function(filter, i) {
+        if (!filter.id) {
+            Utils.error('Config', 'Missing filter {0} id', i);
+        }
+        if (definedFilters.indexOf(filter.id) != -1) {
+            Utils.error('Config', 'Filter "{0}" already defined', filter.id);
+        }
+        definedFilters.push(filter.id);
+
+        if (!filter.type) {
+            filter.type = 'string';
+        }
+        else if (!QueryBuilder.types[filter.type]) {
+            Utils.error('Config', 'Invalid type "{0}"', filter.type);
+        }
+
+        if (!filter.input) {
+            filter.input = QueryBuilder.types[filter.type] === 'number' ? 'number' : 'text';
+        }
+        else if (typeof filter.input != 'function' && QueryBuilder.inputs.indexOf(filter.input) == -1) {
+            Utils.error('Config', 'Invalid input "{0}"', filter.input);
+        }
+
+        if (filter.operators) {
+            filter.operators.forEach(function(operator) {
+                if (typeof operator != 'string') {
+                    Utils.error('Config', 'Filter operators must be global operators types (string)');
+                }
+            });
+        }
+
+        if (!filter.field) {
+            filter.field = filter.id;
+        }
+        if (!filter.label) {
+            filter.label = filter.field;
+        }
+
+        if (!filter.optgroup) {
+            filter.optgroup = null;
+        }
+        else {
+            this.status.has_optgroup = true;
+
+            // register optgroup if needed
+            if (!this.settings.optgroups[filter.optgroup]) {
+                this.settings.optgroups[filter.optgroup] = filter.optgroup;
+            }
+        }
+
+        switch (filter.input) {
+            case 'radio':
+            case 'checkbox':
+                if (!filter.values || filter.values.length < 1) {
+                    Utils.error('Config', 'Missing filter "{0}" values', filter.id);
+                }
+                break;
+
+            case 'select':
+                var cleanValues = [];
+                filter.has_optgroup = false;
+
+                Utils.iterateOptions(filter.values, function(value, label, optgroup) {
+                    cleanValues.push({
+                        value: value,
+                        label: label,
+                        optgroup: optgroup || null
+                    });
+
+                    if (optgroup) {
+                        filter.has_optgroup = true;
+
+                        // register optgroup if needed
+                        if (!this.settings.optgroups[optgroup]) {
+                            this.settings.optgroups[optgroup] = optgroup;
+                        }
+                    }
+                }.bind(this));
+
+                if (filter.has_optgroup) {
+                    filter.values = Utils.groupSort(cleanValues, 'optgroup');
+                }
+                else {
+                    filter.values = cleanValues;
+                }
+
+                if (filter.placeholder) {
+                    if (filter.placeholder_value === undefined) {
+                        filter.placeholder_value = -1;
+                    }
+
+                    filter.values.forEach(function(entry) {
+                        if (entry.value == filter.placeholder_value) {
+                            Utils.error('Config', 'Placeholder of filter "{0}" overlaps with one of its values', filter.id);
+                        }
+                    });
+                }
+                break;
+        }
+    }, this);
+
+    if (this.settings.sort_filters) {
+        if (typeof this.settings.sort_filters == 'function') {
+            filters.sort(this.settings.sort_filters);
+        }
+        else {
+            var self = this;
+            filters.sort(function(a, b) {
+                return self.translate(a.label).localeCompare(self.translate(b.label));
+            });
+        }
+    }
+
+    if (this.status.has_optgroup) {
+        filters = Utils.groupSort(filters, 'optgroup');
+    }
+
+    return filters;
+};
+
+/**
+ * Checks the configuration of each operator
+ * @param {QueryBuilder.Operator[]} operators
+ * @returns {QueryBuilder.Operator[]}
+ * @throws ConfigError
+ */
+QueryBuilder.prototype.checkOperators = function(operators) {
+    var definedOperators = [];
+
+    operators.forEach(function(operator, i) {
+        if (typeof operator == 'string') {
+            if (!QueryBuilder.OPERATORS[operator]) {
+                Utils.error('Config', 'Unknown operator "{0}"', operator);
+            }
+
+            operators[i] = operator = $.extendext(true, 'replace', {}, QueryBuilder.OPERATORS[operator]);
+        }
+        else {
+            if (!operator.type) {
+                Utils.error('Config', 'Missing "type" for operator {0}', i);
+            }
+
+            if (QueryBuilder.OPERATORS[operator.type]) {
+                operators[i] = operator = $.extendext(true, 'replace', {}, QueryBuilder.OPERATORS[operator.type], operator);
+            }
+
+            if (operator.nb_inputs === undefined || operator.apply_to === undefined) {
+                Utils.error('Config', 'Missing "nb_inputs" and/or "apply_to" for operator "{0}"', operator.type);
+            }
+        }
+
+        if (definedOperators.indexOf(operator.type) != -1) {
+            Utils.error('Config', 'Operator "{0}" already defined', operator.type);
+        }
+        definedOperators.push(operator.type);
+
+        if (!operator.optgroup) {
+            operator.optgroup = null;
+        }
+        else {
+            this.status.has_operator_optgroup = true;
+
+            // register optgroup if needed
+            if (!this.settings.optgroups[operator.optgroup]) {
+                this.settings.optgroups[operator.optgroup] = operator.optgroup;
+            }
+        }
+    }, this);
+
+    if (this.status.has_operator_optgroup) {
+        operators = Utils.groupSort(operators, 'optgroup');
+    }
+
+    return operators;
+};
+
+/**
+ * Adds all events listeners to the builder
+ * @private
+ */
+QueryBuilder.prototype.bindEvents = function() {
+    var self = this;
+    var Selectors = QueryBuilder.selectors;
+
+    // group condition change
+    this.$el.on('change.queryBuilder', Selectors.group_condition, function() {
+        if ($(this).is(':checked')) {
+            var $group = $(this).closest(Selectors.group_container);
+            self.getModel($group).condition = $(this).val();
+        }
+    });
+
+    // rule filter change
+    this.$el.on('change.queryBuilder', Selectors.rule_filter, function() {
+        var $rule = $(this).closest(Selectors.rule_container);
+        self.getModel($rule).filter = self.getFilterById($(this).val());
+    });
+
+    // rule operator change
+    this.$el.on('change.queryBuilder', Selectors.rule_operator, function() {
+        var $rule = $(this).closest(Selectors.rule_container);
+        self.getModel($rule).operator = self.getOperatorByType($(this).val());
+    });
+
+    // add rule button
+    this.$el.on('click.queryBuilder', Selectors.add_rule, function() {
+        var $group = $(this).closest(Selectors.group_container);
+        self.addRule(self.getModel($group));
+    });
+
+    // delete rule button
+    this.$el.on('click.queryBuilder', Selectors.delete_rule, function() {
+        var $rule = $(this).closest(Selectors.rule_container);
+        self.deleteRule(self.getModel($rule));
+    });
+
+    if (this.settings.allow_groups !== 0) {
+        // add group button
+        this.$el.on('click.queryBuilder', Selectors.add_group, function() {
+            var $group = $(this).closest(Selectors.group_container);
+            self.addGroup(self.getModel($group));
+        });
+
+        // delete group button
+        this.$el.on('click.queryBuilder', Selectors.delete_group, function() {
+            var $group = $(this).closest(Selectors.group_container);
+            self.deleteGroup(self.getModel($group));
+        });
+    }
+
+    // model events
+    this.model.on({
+        'drop': function(e, node) {
+            node.$el.remove();
+            self.refreshGroupsConditions();
+        },
+        'add': function(e, parent, node, index) {
+            if (index === 0) {
+                node.$el.prependTo(parent.$el.find('>' + QueryBuilder.selectors.rules_list));
+            }
+            else {
+                node.$el.insertAfter(parent.rules[index - 1].$el);
+            }
+            self.refreshGroupsConditions();
+        },
+        'move': function(e, node, group, index) {
+            node.$el.detach();
+
+            if (index === 0) {
+                node.$el.prependTo(group.$el.find('>' + QueryBuilder.selectors.rules_list));
+            }
+            else {
+                node.$el.insertAfter(group.rules[index - 1].$el);
+            }
+            self.refreshGroupsConditions();
+        },
+        'update': function(e, node, field, value, oldValue) {
+            if (node instanceof Rule) {
+                switch (field) {
+                    case 'error':
+                        self.updateError(node);
+                        break;
+
+                    case 'flags':
+                        self.applyRuleFlags(node);
+                        break;
+
+                    case 'filter':
+                        self.updateRuleFilter(node, oldValue);
+                        break;
+
+                    case 'operator':
+                        self.updateRuleOperator(node, oldValue);
+                        break;
+
+                    case 'value':
+                        self.updateRuleValue(node, oldValue);
+                        break;
+                }
+            }
+            else {
+                switch (field) {
+                    case 'error':
+                        self.updateError(node);
+                        break;
+
+                    case 'flags':
+                        self.applyGroupFlags(node);
+                        break;
+
+                    case 'condition':
+                        self.updateGroupCondition(node, oldValue);
+                        break;
+                }
+            }
+        }
+    });
+};
+
+/**
+ * Creates the root group
+ * @param {boolean} [addRule=true] - adds a default empty rule
+ * @param {object} [data] - group custom data
+ * @param {object} [flags] - flags to apply to the group
+ * @returns {Group} root group
+ * @fires QueryBuilder.afterAddGroup
+ */
+QueryBuilder.prototype.setRoot = function(addRule, data, flags) {
+    addRule = (addRule === undefined || addRule === true);
+
+    var group_id = this.nextGroupId();
+    var $group = $(this.getGroupTemplate(group_id, 1));
+
+    this.$el.append($group);
+    this.model.root = new Group(null, $group);
+    this.model.root.model = this.model;
+
+    this.model.root.data = data;
+    this.model.root.flags = $.extend({}, this.settings.default_group_flags, flags);
+    this.model.root.condition = this.settings.default_condition;
+
+    this.trigger('afterAddGroup', this.model.root);
+
+    if (addRule) {
+        this.addRule(this.model.root);
+    }
+
+    return this.model.root;
+};
+
+/**
+ * Adds a new group
+ * @param {Group} parent
+ * @param {boolean} [addRule=true] - adds a default empty rule
+ * @param {object} [data] - group custom data
+ * @param {object} [flags] - flags to apply to the group
+ * @returns {Group}
+ * @fires QueryBuilder.beforeAddGroup
+ * @fires QueryBuilder.afterAddGroup
+ */
+QueryBuilder.prototype.addGroup = function(parent, addRule, data, flags) {
+    addRule = (addRule === undefined || addRule === true);
+
+    var level = parent.level + 1;
+
+    /**
+     * Just before adding a group, can be prevented.
+     * @event beforeAddGroup
+     * @memberof QueryBuilder
+     * @param {Group} parent
+     * @param {boolean} addRule - if an empty rule will be added in the group
+     * @param {int} level - nesting level of the group, 1 is the root group
+     */
+    var e = this.trigger('beforeAddGroup', parent, addRule, level);
+    if (e.isDefaultPrevented()) {
+        return null;
+    }
+
+    var group_id = this.nextGroupId();
+    var $group = $(this.getGroupTemplate(group_id, level));
+    var model = parent.addGroup($group);
+
+    model.data = data;
+    model.flags = $.extend({}, this.settings.default_group_flags, flags);
+    model.condition = this.settings.default_condition;
+
+    /**
+     * Just after adding a group
+     * @event afterAddGroup
+     * @memberof QueryBuilder
+     * @param {Group} group
+     */
+    this.trigger('afterAddGroup', model);
+
+    /**
+     * After any change in the rules
+     * @event rulesChanged
+     * @memberof QueryBuilder
+     */
+    this.trigger('rulesChanged');
+
+    if (addRule) {
+        this.addRule(model);
+    }
+
+    return model;
+};
+
+/**
+ * Tries to delete a group. The group is not deleted if at least one rule is flagged `no_delete`.
+ * @param {Group} group
+ * @returns {boolean} if the group has been deleted
+ * @fires QueryBuilder.beforeDeleteGroup
+ * @fires QueryBuilder.afterDeleteGroup
+ */
+QueryBuilder.prototype.deleteGroup = function(group) {
+    if (group.isRoot()) {
+        return false;
+    }
+
+    /**
+     * Just before deleting a group, can be prevented
+     * @event beforeDeleteGroup
+     * @memberof QueryBuilder
+     * @param {Group} parent
+     */
+    var e = this.trigger('beforeDeleteGroup', group);
+    if (e.isDefaultPrevented()) {
+        return false;
+    }
+
+    var del = true;
+
+    group.each('reverse', function(rule) {
+        del &= this.deleteRule(rule);
+    }, function(group) {
+        del &= this.deleteGroup(group);
+    }, this);
+
+    if (del) {
+        group.drop();
+
+        /**
+         * Just after deleting a group
+         * @event afterDeleteGroup
+         * @memberof QueryBuilder
+         */
+        this.trigger('afterDeleteGroup');
+
+        this.trigger('rulesChanged');
+    }
+
+    return del;
+};
+
+/**
+ * Performs actions when a group's condition changes
+ * @param {Group} group
+ * @param {object} previousCondition
+ * @fires QueryBuilder.afterUpdateGroupCondition
+ * @private
+ */
+QueryBuilder.prototype.updateGroupCondition = function(group, previousCondition) {
+    group.$el.find('>' + QueryBuilder.selectors.group_condition).each(function() {
+        var $this = $(this);
+        $this.prop('checked', $this.val() === group.condition);
+        $this.parent().toggleClass('active', $this.val() === group.condition);
+    });
+
+    /**
+     * After the group condition has been modified
+     * @event afterUpdateGroupCondition
+     * @memberof QueryBuilder
+     * @param {Group} group
+     * @param {object} previousCondition
+     */
+    this.trigger('afterUpdateGroupCondition', group, previousCondition);
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Updates the visibility of conditions based on number of rules inside each group
+ * @private
+ */
+QueryBuilder.prototype.refreshGroupsConditions = function() {
+    (function walk(group) {
+        if (!group.flags || (group.flags && !group.flags.condition_readonly)) {
+            group.$el.find('>' + QueryBuilder.selectors.group_condition).prop('disabled', group.rules.length <= 1)
+                .parent().toggleClass('disabled', group.rules.length <= 1);
+        }
+
+        group.each(null, function(group) {
+            walk(group);
+        }, this);
+    }(this.model.root));
+};
+
+/**
+ * Adds a new rule
+ * @param {Group} parent
+ * @param {object} [data] - rule custom data
+ * @param {object} [flags] - flags to apply to the rule
+ * @returns {Rule}
+ * @fires QueryBuilder.beforeAddRule
+ * @fires QueryBuilder.afterAddRule
+ * @fires QueryBuilder.changer:getDefaultFilter
+ */
+QueryBuilder.prototype.addRule = function(parent, data, flags) {
+    /**
+     * Just before adding a rule, can be prevented
+     * @event beforeAddRule
+     * @memberof QueryBuilder
+     * @param {Group} parent
+     */
+    var e = this.trigger('beforeAddRule', parent);
+    if (e.isDefaultPrevented()) {
+        return null;
+    }
+
+    var rule_id = this.nextRuleId();
+    var $rule = $(this.getRuleTemplate(rule_id));
+    var model = parent.addRule($rule);
+
+    model.data = data;
+    model.flags = $.extend({}, this.settings.default_rule_flags, flags);
+
+    /**
+     * Just after adding a rule
+     * @event afterAddRule
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    this.trigger('afterAddRule', model);
+
+    this.trigger('rulesChanged');
+
+    this.createRuleFilters(model);
+
+    if (this.settings.default_filter || !this.settings.display_empty_filter) {
+        /**
+         * Modifies the default filter for a rule
+         * @event changer:getDefaultFilter
+         * @memberof QueryBuilder
+         * @param {QueryBuilder.Filter} filter
+         * @param {Rule} rule
+         * @returns {QueryBuilder.Filter}
+         */
+        model.filter = this.change('getDefaultFilter',
+            this.getFilterById(this.settings.default_filter || this.filters[0].id),
+            model
+        );
+    }
+
+    return model;
+};
+
+/**
+ * Tries to delete a rule
+ * @param {Rule} rule
+ * @returns {boolean} if the rule has been deleted
+ * @fires QueryBuilder.beforeDeleteRule
+ * @fires QueryBuilder.afterDeleteRule
+ */
+QueryBuilder.prototype.deleteRule = function(rule) {
+    if (rule.flags.no_delete) {
+        return false;
+    }
+
+    /**
+     * Just before deleting a rule, can be prevented
+     * @event beforeDeleteRule
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    var e = this.trigger('beforeDeleteRule', rule);
+    if (e.isDefaultPrevented()) {
+        return false;
+    }
+
+    rule.drop();
+
+    /**
+     * Just after deleting a rule
+     * @event afterDeleteRule
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterDeleteRule');
+
+    this.trigger('rulesChanged');
+
+    return true;
+};
+
+/**
+ * Creates the filters for a rule
+ * @param {Rule} rule
+ * @fires QueryBuilder.changer:getRuleFilters
+ * @fires QueryBuilder.afterCreateRuleFilters
+ * @private
+ */
+QueryBuilder.prototype.createRuleFilters = function(rule) {
+    /**
+     * Modifies the list a filters available for a rule
+     * @event changer:getRuleFilters
+     * @memberof QueryBuilder
+     * @param {QueryBuilder.Filter[]} filters
+     * @param {Rule} rule
+     * @returns {QueryBuilder.Filter[]}
+     */
+    var filters = this.change('getRuleFilters', this.filters, rule);
+    var $filterSelect = $(this.getRuleFilterSelect(rule, filters));
+
+    rule.$el.find(QueryBuilder.selectors.filter_container).html($filterSelect);
+
+    /**
+     * After creating the dropdown for filters
+     * @event afterCreateRuleFilters
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    this.trigger('afterCreateRuleFilters', rule);
+
+    this.applyRuleFlags(rule);
+};
+
+/**
+ * Creates the operators for a rule and init the rule operator
+ * @param {Rule} rule
+ * @fires QueryBuilder.afterCreateRuleOperators
+ * @private
+ */
+QueryBuilder.prototype.createRuleOperators = function(rule) {
+    var $operatorContainer = rule.$el.find(QueryBuilder.selectors.operator_container).empty();
+
+    if (!rule.filter) {
+        return;
+    }
+
+    var operators = this.getOperators(rule.filter);
+    var $operatorSelect = $(this.getRuleOperatorSelect(rule, operators));
+
+    $operatorContainer.html($operatorSelect);
+
+    // set the operator without triggering update event
+    if (rule.filter.default_operator) {
+        rule.__.operator = this.getOperatorByType(rule.filter.default_operator);
+    }
+    else {
+        rule.__.operator = operators[0];
+    }
+
+    rule.$el.find(QueryBuilder.selectors.rule_operator).val(rule.operator.type);
+
+    /**
+     * After creating the dropdown for operators
+     * @event afterCreateRuleOperators
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     * @param {QueryBuilder.Operator[]} operators - allowed operators for this rule
+     */
+    this.trigger('afterCreateRuleOperators', rule, operators);
+
+    this.applyRuleFlags(rule);
+};
+
+/**
+ * Creates the main input for a rule
+ * @param {Rule} rule
+ * @fires QueryBuilder.afterCreateRuleInput
+ * @private
+ */
+QueryBuilder.prototype.createRuleInput = function(rule) {
+    var $valueContainer = rule.$el.find(QueryBuilder.selectors.value_container).empty();
+
+    rule.__.value = undefined;
+
+    if (!rule.filter || !rule.operator || rule.operator.nb_inputs === 0) {
+        return;
+    }
+
+    var self = this;
+    var $inputs = $();
+    var filter = rule.filter;
+
+    for (var i = 0; i < rule.operator.nb_inputs; i++) {
+        var $ruleInput = $(this.getRuleInput(rule, i));
+        if (i > 0) $valueContainer.append(this.settings.inputs_separator);
+        $valueContainer.append($ruleInput);
+        $inputs = $inputs.add($ruleInput);
+    }
+
+    $valueContainer.css('display', '');
+
+    $inputs.on('change ' + (filter.input_event || ''), function() {
+        if (!rule._updating_input) {
+            rule._updating_value = true;
+            rule.value = self.getRuleInputValue(rule);
+            rule._updating_value = false;
+        }
+    });
+
+    if (filter.plugin) {
+        $inputs[filter.plugin](filter.plugin_config || {});
+    }
+
+    /**
+     * After creating the input for a rule and initializing optional plugin
+     * @event afterCreateRuleInput
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    this.trigger('afterCreateRuleInput', rule);
+
+    if (filter.default_value !== undefined) {
+        rule.value = filter.default_value;
+    }
+    else {
+        rule._updating_value = true;
+        rule.value = self.getRuleInputValue(rule);
+        rule._updating_value = false;
+    }
+
+    this.applyRuleFlags(rule);
+};
+
+/**
+ * Performs action when a rule's filter changes
+ * @param {Rule} rule
+ * @param {object} previousFilter
+ * @fires QueryBuilder.afterUpdateRuleFilter
+ * @private
+ */
+QueryBuilder.prototype.updateRuleFilter = function(rule, previousFilter) {
+    this.createRuleOperators(rule);
+    this.createRuleInput(rule);
+
+    rule.$el.find(QueryBuilder.selectors.rule_filter).val(rule.filter ? rule.filter.id : '-1');
+
+    // clear rule data if the filter changed
+    if (previousFilter && rule.filter && previousFilter.id !== rule.filter.id) {
+        rule.data = undefined;
+    }
+
+    /**
+     * After the filter has been updated and the operators and input re-created
+     * @event afterUpdateRuleFilter
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     * @param {object} previousFilter
+     */
+    this.trigger('afterUpdateRuleFilter', rule, previousFilter);
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Performs actions when a rule's operator changes
+ * @param {Rule} rule
+ * @param {object} previousOperator
+ * @fires QueryBuilder.afterUpdateRuleOperator
+ * @private
+ */
+QueryBuilder.prototype.updateRuleOperator = function(rule, previousOperator) {
+    var $valueContainer = rule.$el.find(QueryBuilder.selectors.value_container);
+
+    if (!rule.operator || rule.operator.nb_inputs === 0) {
+        $valueContainer.hide();
+
+        rule.__.value = undefined;
+    }
+    else {
+        $valueContainer.css('display', '');
+
+        if ($valueContainer.is(':empty') || !previousOperator ||
+            rule.operator.nb_inputs !== previousOperator.nb_inputs ||
+            rule.operator.optgroup !== previousOperator.optgroup
+        ) {
+            this.createRuleInput(rule);
+        }
+    }
+
+    if (rule.operator) {
+        rule.$el.find(QueryBuilder.selectors.rule_operator).val(rule.operator.type);
+
+        // refresh value if the format changed for this operator
+        rule.__.value = this.getRuleInputValue(rule);
+    }
+
+    /**
+     *  After the operator has been updated and the input optionally re-created
+     * @event afterUpdateRuleOperator
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     * @param {object} previousOperator
+     */
+    this.trigger('afterUpdateRuleOperator', rule, previousOperator);
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Performs actions when rule's value changes
+ * @param {Rule} rule
+ * @param {object} previousValue
+ * @fires QueryBuilder.afterUpdateRuleValue
+ * @private
+ */
+QueryBuilder.prototype.updateRuleValue = function(rule, previousValue) {
+    if (!rule._updating_value) {
+        this.setRuleInputValue(rule, rule.value);
+    }
+
+    /**
+     * After the rule value has been modified
+     * @event afterUpdateRuleValue
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     * @param {*} previousValue
+     */
+    this.trigger('afterUpdateRuleValue', rule, previousValue);
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Changes a rule's properties depending on its flags
+ * @param {Rule} rule
+ * @fires QueryBuilder.afterApplyRuleFlags
+ * @private
+ */
+QueryBuilder.prototype.applyRuleFlags = function(rule) {
+    var flags = rule.flags;
+    var Selectors = QueryBuilder.selectors;
+
+    rule.$el.find(Selectors.rule_filter).prop('disabled', flags.filter_readonly);
+    rule.$el.find(Selectors.rule_operator).prop('disabled', flags.operator_readonly);
+    rule.$el.find(Selectors.rule_value).prop('disabled', flags.value_readonly);
+
+    if (flags.no_delete) {
+        rule.$el.find(Selectors.delete_rule).remove();
+    }
+
+    /**
+     * After rule's flags has been applied
+     * @event afterApplyRuleFlags
+     * @memberof QueryBuilder
+     * @param {Rule} rule
+     */
+    this.trigger('afterApplyRuleFlags', rule);
+};
+
+/**
+ * Changes group's properties depending on its flags
+ * @param {Group} group
+ * @fires QueryBuilder.afterApplyGroupFlags
+ * @private
+ */
+QueryBuilder.prototype.applyGroupFlags = function(group) {
+    var flags = group.flags;
+    var Selectors = QueryBuilder.selectors;
+
+    group.$el.find('>' + Selectors.group_condition).prop('disabled', flags.condition_readonly)
+        .parent().toggleClass('readonly', flags.condition_readonly);
+
+    if (flags.no_add_rule) {
+        group.$el.find(Selectors.add_rule).remove();
+    }
+    if (flags.no_add_group) {
+        group.$el.find(Selectors.add_group).remove();
+    }
+    if (flags.no_delete) {
+        group.$el.find(Selectors.delete_group).remove();
+    }
+
+    /**
+     * After group's flags has been applied
+     * @event afterApplyGroupFlags
+     * @memberof QueryBuilder
+     * @param {Group} group
+     */
+    this.trigger('afterApplyGroupFlags', group);
+};
+
+/**
+ * Clears all errors markers
+ * @param {Node} [node] default is root Group
+ */
+QueryBuilder.prototype.clearErrors = function(node) {
+    node = node || this.model.root;
+
+    if (!node) {
+        return;
+    }
+
+    node.error = null;
+
+    if (node instanceof Group) {
+        node.each(function(rule) {
+            rule.error = null;
+        }, function(group) {
+            this.clearErrors(group);
+        }, this);
+    }
+};
+
+/**
+ * Adds/Removes error on a Rule or Group
+ * @param {Node} node
+ * @fires QueryBuilder.changer:displayError
+ * @private
+ */
+QueryBuilder.prototype.updateError = function(node) {
+    if (this.settings.display_errors) {
+        if (node.error === null) {
+            node.$el.removeClass('has-error');
+        }
+        else {
+            var errorMessage = this.translate('errors', node.error[0]);
+            errorMessage = Utils.fmt(errorMessage, node.error.slice(1));
+
+            /**
+             * Modifies an error message before display
+             * @event changer:displayError
+             * @memberof QueryBuilder
+             * @param {string} errorMessage - the error message (translated and formatted)
+             * @param {array} error - the raw error array (error code and optional arguments)
+             * @param {Node} node
+             * @returns {string}
+             */
+            errorMessage = this.change('displayError', errorMessage, node.error, node);
+
+            node.$el.addClass('has-error')
+                .find(QueryBuilder.selectors.error_container).eq(0)
+                .attr('title', errorMessage);
+        }
+    }
+};
+
+/**
+ * Triggers a validation error event
+ * @param {Node} node
+ * @param {string|array} error
+ * @param {*} value
+ * @fires QueryBuilder.validationError
+ * @private
+ */
+QueryBuilder.prototype.triggerValidationError = function(node, error, value) {
+    if (!$.isArray(error)) {
+        error = [error];
+    }
+
+    /**
+     * Fired when a validation error occurred, can be prevented
+     * @event validationError
+     * @memberof QueryBuilder
+     * @param {Node} node
+     * @param {string} error
+     * @param {*} value
+     */
+    var e = this.trigger('validationError', node, error, value);
+    if (!e.isDefaultPrevented()) {
+        node.error = error;
+    }
+};
+
+
+/**
+ * Destroys the builder
+ * @fires QueryBuilder.beforeDestroy
+ */
+QueryBuilder.prototype.destroy = function() {
+    /**
+     * Before the {@link QueryBuilder#destroy} method
+     * @event beforeDestroy
+     * @memberof QueryBuilder
+     */
+    this.trigger('beforeDestroy');
+
+    if (this.status.generated_id) {
+        this.$el.removeAttr('id');
+    }
+
+    this.clear();
+    this.model = null;
+
+    this.$el
+        .off('.queryBuilder')
+        .removeClass('query-builder')
+        .removeData('queryBuilder');
+
+    delete this.$el[0].queryBuilder;
+};
+
+/**
+ * Clear all rules and resets the root group
+ * @fires QueryBuilder.beforeReset
+ * @fires QueryBuilder.afterReset
+ */
+QueryBuilder.prototype.reset = function() {
+    /**
+     * Before the {@link QueryBuilder#reset} method, can be prevented
+     * @event beforeReset
+     * @memberof QueryBuilder
+     */
+    var e = this.trigger('beforeReset');
+    if (e.isDefaultPrevented()) {
+        return;
+    }
+
+    this.status.group_id = 1;
+    this.status.rule_id = 0;
+
+    this.model.root.empty();
+
+    this.model.root.data = undefined;
+    this.model.root.flags = $.extend({}, this.settings.default_group_flags);
+    this.model.root.condition = this.settings.default_condition;
+
+    this.addRule(this.model.root);
+
+    /**
+     * After the {@link QueryBuilder#reset} method
+     * @event afterReset
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterReset');
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Clears all rules and removes the root group
+ * @fires QueryBuilder.beforeClear
+ * @fires QueryBuilder.afterClear
+ */
+QueryBuilder.prototype.clear = function() {
+    /**
+     * Before the {@link QueryBuilder#clear} method, can be prevented
+     * @event beforeClear
+     * @memberof QueryBuilder
+     */
+    var e = this.trigger('beforeClear');
+    if (e.isDefaultPrevented()) {
+        return;
+    }
+
+    this.status.group_id = 0;
+    this.status.rule_id = 0;
+
+    if (this.model.root) {
+        this.model.root.drop();
+        this.model.root = null;
+    }
+
+    /**
+     * After the {@link QueryBuilder#clear} method
+     * @event afterClear
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterClear');
+
+    this.trigger('rulesChanged');
+};
+
+/**
+ * Modifies the builder configuration.<br>
+ * Only options defined in QueryBuilder.modifiable_options are modifiable
+ * @param {object} options
+ */
+QueryBuilder.prototype.setOptions = function(options) {
+    $.each(options, function(opt, value) {
+        if (QueryBuilder.modifiable_options.indexOf(opt) !== -1) {
+            this.settings[opt] = value;
+        }
+    }.bind(this));
+};
+
+/**
+ * Returns the model associated to a DOM object, or the root model
+ * @param {jQuery} [target]
+ * @returns {Node}
+ */
+QueryBuilder.prototype.getModel = function(target) {
+    if (!target) {
+        return this.model.root;
+    }
+    else if (target instanceof Node) {
+        return target;
+    }
+    else {
+        return $(target).data('queryBuilderModel');
+    }
+};
+
+/**
+ * Validates the whole builder
+ * @param {object} [options]
+ * @param {boolean} [options.skip_empty=false] - skips validating rules that have no filter selected
+ * @returns {boolean}
+ * @fires QueryBuilder.changer:validate
+ */
+QueryBuilder.prototype.validate = function(options) {
+    options = $.extend({
+        skip_empty: false
+    }, options);
+
+    this.clearErrors();
+
+    var self = this;
+
+    var valid = (function parse(group) {
+        var done = 0;
+        var errors = 0;
+
+        group.each(function(rule) {
+            if (!rule.filter && options.skip_empty) {
+                return;
+            }
+
+            if (!rule.filter) {
+                self.triggerValidationError(rule, 'no_filter', null);
+                errors++;
+                return;
+            }
+
+            if (!rule.operator) {
+                self.triggerValidationError(rule, 'no_operator', null);
+                errors++;
+                return;
+            }
+
+            if (rule.operator.nb_inputs !== 0) {
+                var valid = self.validateValue(rule, rule.value);
+
+                if (valid !== true) {
+                    self.triggerValidationError(rule, valid, rule.value);
+                    errors++;
+                    return;
+                }
+            }
+
+            done++;
+
+        }, function(group) {
+            var res = parse(group);
+            if (res === true) {
+                done++;
+            }
+            else if (res === false) {
+                errors++;
+            }
+        });
+
+        if (errors > 0) {
+            return false;
+        }
+        else if (done === 0 && !group.isRoot() && options.skip_empty) {
+            return null;
+        }
+        else if (done === 0 && (!self.settings.allow_empty || !group.isRoot())) {
+            self.triggerValidationError(group, 'empty_group', null);
+            return false;
+        }
+
+        return true;
+
+    }(this.model.root));
+
+    /**
+     * Modifies the result of the {@link QueryBuilder#validate} method
+     * @event changer:validate
+     * @memberof QueryBuilder
+     * @param {boolean} valid
+     * @returns {boolean}
+     */
+    return this.change('validate', valid);
+};
+
+/**
+ * Gets an object representing current rules
+ * @param {object} [options]
+ * @param {boolean|string} [options.get_flags=false] - export flags, true: only changes from default flags or 'all'
+ * @param {boolean} [options.allow_invalid=false] - returns rules even if they are invalid
+ * @param {boolean} [options.skip_empty=false] - remove rules that have no filter selected
+ * @returns {object}
+ * @fires QueryBuilder.changer:ruleToJson
+ * @fires QueryBuilder.changer:groupToJson
+ * @fires QueryBuilder.changer:getRules
+ */
+QueryBuilder.prototype.getRules = function(options) {
+    options = $.extend({
+        get_flags: false,
+        allow_invalid: false,
+        skip_empty: false
+    }, options);
+
+    var valid = this.validate(options);
+    if (!valid && !options.allow_invalid) {
+        return null;
+    }
+
+    var self = this;
+
+    var out = (function parse(group) {
+        var groupData = {
+            condition: group.condition,
+            rules: []
+        };
+
+        if (group.data) {
+            groupData.data = $.extendext(true, 'replace', {}, group.data);
+        }
+
+        if (options.get_flags) {
+            var flags = self.getGroupFlags(group.flags, options.get_flags === 'all');
+            if (!$.isEmptyObject(flags)) {
+                groupData.flags = flags;
+            }
+        }
+
+        group.each(function(rule) {
+            if (!rule.filter && options.skip_empty) {
+                return;
+            }
+
+            var value = null;
+            if (!rule.operator || rule.operator.nb_inputs !== 0) {
+                value = rule.value;
+            }
+
+            var ruleData = {
+                id: rule.filter ? rule.filter.id : null,
+                field: rule.filter ? rule.filter.field : null,
+                type: rule.filter ? rule.filter.type : null,
+                input: rule.filter ? rule.filter.input : null,
+                operator: rule.operator ? rule.operator.type : null,
+                value: value
+            };
+
+            if (rule.filter && rule.filter.data || rule.data) {
+                ruleData.data = $.extendext(true, 'replace', {}, rule.filter.data, rule.data);
+            }
+
+            if (options.get_flags) {
+                var flags = self.getRuleFlags(rule.flags, options.get_flags === 'all');
+                if (!$.isEmptyObject(flags)) {
+                    ruleData.flags = flags;
+                }
+            }
+
+            /**
+             * Modifies the JSON generated from a Rule object
+             * @event changer:ruleToJson
+             * @memberof QueryBuilder
+             * @param {object} json
+             * @param {Rule} rule
+             * @returns {object}
+             */
+            groupData.rules.push(self.change('ruleToJson', ruleData, rule));
+
+        }, function(model) {
+            var data = parse(model);
+            if (data.rules.length !== 0 || !options.skip_empty) {
+                groupData.rules.push(data);
+            }
+        }, this);
+
+        /**
+         * Modifies the JSON generated from a Group object
+         * @event changer:groupToJson
+         * @memberof QueryBuilder
+         * @param {object} json
+         * @param {Group} group
+         * @returns {object}
+         */
+        return self.change('groupToJson', groupData, group);
+
+    }(this.model.root));
+
+    out.valid = valid;
+
+    /**
+     * Modifies the result of the {@link QueryBuilder#getRules} method
+     * @event changer:getRules
+     * @memberof QueryBuilder
+     * @param {object} json
+     * @returns {object}
+     */
+    return this.change('getRules', out);
+};
+
+/**
+ * Sets rules from object
+ * @param {object} data
+ * @param {object} [options]
+ * @param {boolean} [options.allow_invalid=false] - silent-fail if the data are invalid
+ * @throws RulesError, UndefinedConditionError
+ * @fires QueryBuilder.changer:setRules
+ * @fires QueryBuilder.changer:jsonToRule
+ * @fires QueryBuilder.changer:jsonToGroup
+ * @fires QueryBuilder.afterSetRules
+ */
+QueryBuilder.prototype.setRules = function(data, options) {
+    options = $.extend({
+        allow_invalid: false
+    }, options);
+
+    if ($.isArray(data)) {
+        data = {
+            condition: this.settings.default_condition,
+            rules: data
+        };
+    }
+
+    if (!data || !data.rules || (data.rules.length === 0 && !this.settings.allow_empty)) {
+        Utils.error('RulesParse', 'Incorrect data object passed');
+    }
+
+    this.clear();
+    this.setRoot(false, data.data, this.parseGroupFlags(data));
+
+    /**
+     * Modifies data before the {@link QueryBuilder#setRules} method
+     * @event changer:setRules
+     * @memberof QueryBuilder
+     * @param {object} json
+     * @param {object} options
+     * @returns {object}
+     */
+    data = this.change('setRules', data, options);
+
+    var self = this;
+
+    (function add(data, group) {
+        if (group === null) {
+            return;
+        }
+
+        if (data.condition === undefined) {
+            data.condition = self.settings.default_condition;
+        }
+        else if (self.settings.conditions.indexOf(data.condition) == -1) {
+            Utils.error(!options.allow_invalid, 'UndefinedCondition', 'Invalid condition "{0}"', data.condition);
+            data.condition = self.settings.default_condition;
+        }
+
+        group.condition = data.condition;
+
+        data.rules.forEach(function(item) {
+            var model;
+
+            if (item.rules !== undefined) {
+                if (self.settings.allow_groups !== -1 && self.settings.allow_groups < group.level) {
+                    Utils.error(!options.allow_invalid, 'RulesParse', 'No more than {0} groups are allowed', self.settings.allow_groups);
+                    self.reset();
+                }
+                else {
+                    model = self.addGroup(group, false, item.data, self.parseGroupFlags(item));
+                    if (model === null) {
+                        return;
+                    }
+
+                    add(item, model);
+                }
+            }
+            else {
+                if (!item.empty) {
+                    if (item.id === undefined) {
+                        Utils.error(!options.allow_invalid, 'RulesParse', 'Missing rule field id');
+                        item.empty = true;
+                    }
+                    if (item.operator === undefined) {
+                        item.operator = 'equal';
+                    }
+                }
+
+                model = self.addRule(group, item.data, self.parseRuleFlags(item));
+                if (model === null) {
+                    return;
+                }
+
+                if (!item.empty) {
+                    model.filter = self.getFilterById(item.id, !options.allow_invalid);
+                }
+
+                if (model.filter) {
+                    model.operator = self.getOperatorByType(item.operator, !options.allow_invalid);
+
+                    if (!model.operator) {
+                        model.operator = self.getOperators(model.filter)[0];
+                    }
+                }
+
+                if (model.operator && model.operator.nb_inputs !== 0) {
+                    if (item.value !== undefined) {
+                        model.value = item.value;
+                    }
+                    else if (model.filter.default_value !== undefined) {
+                        model.value = model.filter.default_value;
+                    }
+                }
+
+                /**
+                 * Modifies the Rule object generated from the JSON
+                 * @event changer:jsonToRule
+                 * @memberof QueryBuilder
+                 * @param {Rule} rule
+                 * @param {object} json
+                 * @returns {Rule} the same rule
+                 */
+                if (self.change('jsonToRule', model, item) != model) {
+                    Utils.error('RulesParse', 'Plugin tried to change rule reference');
+                }
+            }
+        });
+
+        /**
+         * Modifies the Group object generated from the JSON
+         * @event changer:jsonToGroup
+         * @memberof QueryBuilder
+         * @param {Group} group
+         * @param {object} json
+         * @returns {Group} the same group
+         */
+        if (self.change('jsonToGroup', group, data) != group) {
+            Utils.error('RulesParse', 'Plugin tried to change group reference');
+        }
+
+    }(data, this.model.root));
+
+    /**
+     * After the {@link QueryBuilder#setRules} method
+     * @event afterSetRules
+     * @memberof QueryBuilder
+     */
+    this.trigger('afterSetRules');
+};
+
+
+/**
+ * Performs value validation
+ * @param {Rule} rule
+ * @param {string|string[]} value
+ * @returns {array|boolean} true or error array
+ * @fires QueryBuilder.changer:validateValue
+ */
+QueryBuilder.prototype.validateValue = function(rule, value) {
+    var validation = rule.filter.validation || {};
+    var result = true;
+
+    if (validation.callback) {
+        result = validation.callback.call(this, value, rule);
+    }
+    else {
+        result = this._validateValue(rule, value);
+    }
+
+    /**
+     * Modifies the result of the rule validation method
+     * @event changer:validateValue
+     * @memberof QueryBuilder
+     * @param {array|boolean} result - true or an error array
+     * @param {*} value
+     * @param {Rule} rule
+     * @returns {array|boolean}
+     */
+    return this.change('validateValue', result, value, rule);
+};
+
+/**
+ * Default validation function
+ * @param {Rule} rule
+ * @param {string|string[]} value
+ * @returns {array|boolean} true or error array
+ * @throws ConfigError
+ * @private
+ */
+QueryBuilder.prototype._validateValue = function(rule, value) {
+    var filter = rule.filter;
+    var operator = rule.operator;
+    var validation = filter.validation || {};
+    var result = true;
+    var tmp, tempValue;
+
+    if (rule.operator.nb_inputs === 1) {
+        value = [value];
+    }
+
+    for (var i = 0; i < operator.nb_inputs; i++) {
+        if (!operator.multiple && $.isArray(value[i]) && value[i].length > 1) {
+            result = ['operator_not_multiple', operator.type, this.translate('operators', operator.type)];
+            break;
+        }
+
+        switch (filter.input) {
+            case 'radio':
+                if (value[i] === undefined || value[i].length === 0) {
+                    if (!validation.allow_empty_value) {
+                        result = ['radio_empty'];
+                    }
+                    break;
+                }
+                break;
+
+            case 'checkbox':
+                if (value[i] === undefined || value[i].length === 0) {
+                    if (!validation.allow_empty_value) {
+                        result = ['checkbox_empty'];
+                    }
+                    break;
+                }
+                break;
+
+            case 'select':
+                if (value[i] === undefined || value[i].length === 0 || (filter.placeholder && value[i] == filter.placeholder_value)) {
+                    if (!validation.allow_empty_value) {
+                        result = ['select_empty'];
+                    }
+                    break;
+                }
+                break;
+
+            default:
+                tempValue = $.isArray(value[i]) ? value[i] : [value[i]];
+
+                for (var j = 0; j < tempValue.length; j++) {
+                    switch (QueryBuilder.types[filter.type]) {
+                        case 'string':
+                            if (tempValue[j] === undefined || tempValue[j].length === 0) {
+                                if (!validation.allow_empty_value) {
+                                    result = ['string_empty'];
+                                }
+                                break;
+                            }
+                            if (validation.min !== undefined) {
+                                if (tempValue[j].length < parseInt(validation.min)) {
+                                    result = [this.getValidationMessage(validation, 'min', 'string_exceed_min_length'), validation.min];
+                                    break;
+                                }
+                            }
+                            if (validation.max !== undefined) {
+                                if (tempValue[j].length > parseInt(validation.max)) {
+                                    result = [this.getValidationMessage(validation, 'max', 'string_exceed_max_length'), validation.max];
+                                    break;
+                                }
+                            }
+                            if (validation.format) {
+                                if (typeof validation.format == 'string') {
+                                    validation.format = new RegExp(validation.format);
+                                }
+                                if (!validation.format.test(tempValue[j])) {
+                                    result = [this.getValidationMessage(validation, 'format', 'string_invalid_format'), validation.format];
+                                    break;
+                                }
+                            }
+                            break;
+
+                        case 'number':
+                            if (tempValue[j] === undefined || tempValue[j].length === 0) {
+                                if (!validation.allow_empty_value) {
+                                    result = ['number_nan'];
+                                }
+                                break;
+                            }
+                            if (isNaN(tempValue[j])) {
+                                result = ['number_nan'];
+                                break;
+                            }
+                            if (filter.type == 'integer') {
+                                if (parseInt(tempValue[j]) != tempValue[j]) {
+                                    result = ['number_not_integer'];
+                                    break;
+                                }
+                            }
+                            else {
+                                if (parseFloat(tempValue[j]) != tempValue[j]) {
+                                    result = ['number_not_double'];
+                                    break;
+                                }
+                            }
+                            if (validation.min !== undefined) {
+                                if (tempValue[j] < parseFloat(validation.min)) {
+                                    result = [this.getValidationMessage(validation, 'min', 'number_exceed_min'), validation.min];
+                                    break;
+                                }
+                            }
+                            if (validation.max !== undefined) {
+                                if (tempValue[j] > parseFloat(validation.max)) {
+                                    result = [this.getValidationMessage(validation, 'max', 'number_exceed_max'), validation.max];
+                                    break;
+                                }
+                            }
+                            if (validation.step !== undefined && validation.step !== 'any') {
+                                var v = (tempValue[j] / validation.step).toPrecision(14);
+                                if (parseInt(v) != v) {
+                                    result = [this.getValidationMessage(validation, 'step', 'number_wrong_step'), validation.step];
+                                    break;
+                                }
+                            }
+                            break;
+
+                        case 'datetime':
+                            if (tempValue[j] === undefined || tempValue[j].length === 0) {
+                                if (!validation.allow_empty_value) {
+                                    result = ['datetime_empty'];
+                                }
+                                break;
+                            }
+
+                            // we need MomentJS
+                            if (validation.format) {
+                                if (!('moment' in window)) {
+                                    Utils.error('MissingLibrary', 'MomentJS is required for Date/Time validation. Get it here http://momentjs.com');
+                                }
+
+                                var datetime = moment(tempValue[j], validation.format);
+                                if (!datetime.isValid()) {
+                                    result = [this.getValidationMessage(validation, 'format', 'datetime_invalid'), validation.format];
+                                    break;
+                                }
+                                else {
+                                    if (validation.min) {
+                                        if (datetime < moment(validation.min, validation.format)) {
+                                            result = [this.getValidationMessage(validation, 'min', 'datetime_exceed_min'), validation.min];
+                                            break;
+                                        }
+                                    }
+                                    if (validation.max) {
+                                        if (datetime > moment(validation.max, validation.format)) {
+                                            result = [this.getValidationMessage(validation, 'max', 'datetime_exceed_max'), validation.max];
+                                            break;
+                                        }
+                                    }
+                                }
+                            }
+                            break;
+
+                        case 'boolean':
+                            if (tempValue[j] === undefined || tempValue[j].length === 0) {
+                                if (!validation.allow_empty_value) {
+                                    result = ['boolean_not_valid'];
+                                }
+                                break;
+                            }
+                            tmp = ('' + tempValue[j]).trim().toLowerCase();
+                            if (tmp !== 'true' && tmp !== 'false' && tmp !== '1' && tmp !== '0' && tempValue[j] !== 1 && tempValue[j] !== 0) {
+                                result = ['boolean_not_valid'];
+                                break;
+                            }
+                    }
+
+                    if (result !== true) {
+                        break;
+                    }
+                }
+        }
+
+        if (result !== true) {
+            break;
+        }
+    }
+
+    if ((rule.operator.type === 'between' || rule.operator.type === 'not_between') && value.length === 2) {
+        switch (QueryBuilder.types[filter.type]) {
+            case 'number':
+                if (value[0] > value[1]) {
+                    result = ['number_between_invalid', value[0], value[1]];
+                }
+                break;
+
+            case 'datetime':
+                // we need MomentJS
+                if (validation.format) {
+                    if (!('moment' in window)) {
+                        Utils.error('MissingLibrary', 'MomentJS is required for Date/Time validation. Get it here http://momentjs.com');
+                    }
+
+                    if (moment(value[0], validation.format).isAfter(moment(value[1], validation.format))) {
+                        result = ['datetime_between_invalid', value[0], value[1]];
+                    }
+                }
+                break;
+        }
+    }
+
+    return result;
+};
+
+/**
+ * Returns an incremented group ID
+ * @returns {string}
+ * @private
+ */
+QueryBuilder.prototype.nextGroupId = function() {
+    return this.status.id + '_group_' + (this.status.group_id++);
+};
+
+/**
+ * Returns an incremented rule ID
+ * @returns {string}
+ * @private
+ */
+QueryBuilder.prototype.nextRuleId = function() {
+    return this.status.id + '_rule_' + (this.status.rule_id++);
+};
+
+/**
+ * Returns the operators for a filter
+ * @param {string|object} filter - filter id or filter object
+ * @returns {object[]}
+ * @fires QueryBuilder.changer:getOperators
+ * @private
+ */
+QueryBuilder.prototype.getOperators = function(filter) {
+    if (typeof filter == 'string') {
+        filter = this.getFilterById(filter);
+    }
+
+    var result = [];
+
+    for (var i = 0, l = this.operators.length; i < l; i++) {
+        // filter operators check
+        if (filter.operators) {
+            if (filter.operators.indexOf(this.operators[i].type) == -1) {
+                continue;
+            }
+        }
+        // type check
+        else if (this.operators[i].apply_to.indexOf(QueryBuilder.types[filter.type]) == -1) {
+            continue;
+        }
+
+        result.push(this.operators[i]);
+    }
+
+    // keep sort order defined for the filter
+    if (filter.operators) {
+        result.sort(function(a, b) {
+            return filter.operators.indexOf(a.type) - filter.operators.indexOf(b.type);
+        });
+    }
+
+    /**
+     * Modifies the operators available for a filter
+     * @event changer:getOperators
+     * @memberof QueryBuilder
+     * @param {QueryBuilder.Operator[]} operators
+     * @param {QueryBuilder.Filter} filter
+     * @returns {QueryBuilder.Operator[]}
+     */
+    return this.change('getOperators', result, filter);
+};
+
+/**
+ * Returns a particular filter by its id
+ * @param {string} id
+ * @param {boolean} [doThrow=true]
+ * @returns {object|null}
+ * @throws UndefinedFilterError
+ * @private
+ */
+QueryBuilder.prototype.getFilterById = function(id, doThrow) {
+    if (id == '-1') {
+        return null;
+    }
+
+    for (var i = 0, l = this.filters.length; i < l; i++) {
+        if (this.filters[i].id == id) {
+            return this.filters[i];
+        }
+    }
+
+    Utils.error(doThrow !== false, 'UndefinedFilter', 'Undefined filter "{0}"', id);
+
+    return null;
+};
+
+/**
+ * Returns a particular operator by its type
+ * @param {string} type
+ * @param {boolean} [doThrow=true]
+ * @returns {object|null}
+ * @throws UndefinedOperatorError
+ * @private
+ */
+QueryBuilder.prototype.getOperatorByType = function(type, doThrow) {
+    if (type == '-1') {
+        return null;
+    }
+
+    for (var i = 0, l = this.operators.length; i < l; i++) {
+        if (this.operators[i].type == type) {
+            return this.operators[i];
+        }
+    }
+
+    Utils.error(doThrow !== false, 'UndefinedOperator', 'Undefined operator "{0}"', type);
+
+    return null;
+};
+
+/**
+ * Returns rule's current input value
+ * @param {Rule} rule
+ * @returns {*}
+ * @fires QueryBuilder.changer:getRuleValue
+ * @private
+ */
+QueryBuilder.prototype.getRuleInputValue = function(rule) {
+    var filter = rule.filter;
+    var operator = rule.operator;
+    var value = [];
+
+    if (filter.valueGetter) {
+        value = filter.valueGetter.call(this, rule);
+    }
+    else {
+        var $value = rule.$el.find(QueryBuilder.selectors.value_container);
+
+        for (var i = 0; i < operator.nb_inputs; i++) {
+            var name = Utils.escapeElementId(rule.id + '_value_' + i);
+            var tmp;
+
+            switch (filter.input) {
+                case 'radio':
+                    value.push($value.find('[name=' + name + ']:checked').val());
+                    break;
+
+                case 'checkbox':
+                    tmp = [];
+                    // jshint loopfunc:true
+                    $value.find('[name=' + name + ']:checked').each(function() {
+                        tmp.push($(this).val());
+                    });
+                    // jshint loopfunc:false
+                    value.push(tmp);
+                    break;
+
+                case 'select':
+                    if (filter.multiple) {
+                        tmp = [];
+                        // jshint loopfunc:true
+                        $value.find('[name=' + name + '] option:selected').each(function() {
+                            tmp.push($(this).val());
+                        });
+                        // jshint loopfunc:false
+                        value.push(tmp);
+                    }
+                    else {
+                        value.push($value.find('[name=' + name + '] option:selected').val());
+                    }
+                    break;
+
+                default:
+                    value.push($value.find('[name=' + name + ']').val());
+            }
+        }
+
+        value = value.map(function(val) {
+            if (operator.multiple && filter.value_separator && typeof val == 'string') {
+                val = val.split(filter.value_separator);
+            }
+
+            if ($.isArray(val)) {
+                return val.map(function(subval) {
+                    return Utils.changeType(subval, filter.type);
+                });
+            }
+            else {
+                return Utils.changeType(val, filter.type);
+            }
+        });
+
+        if (operator.nb_inputs === 1) {
+            value = value[0];
+        }
+
+        // @deprecated
+        if (filter.valueParser) {
+            value = filter.valueParser.call(this, rule, value);
+        }
+    }
+
+    /**
+     * Modifies the rule's value grabbed from the DOM
+     * @event changer:getRuleValue
+     * @memberof QueryBuilder
+     * @param {*} value
+     * @param {Rule} rule
+     * @returns {*}
+     */
+    return this.change('getRuleValue', value, rule);
+};
+
+/**
+ * Sets the value of a rule's input
+ * @param {Rule} rule
+ * @param {*} value
+ * @private
+ */
+QueryBuilder.prototype.setRuleInputValue = function(rule, value) {
+    var filter = rule.filter;
+    var operator = rule.operator;
+
+    if (!filter || !operator) {
+        return;
+    }
+
+    rule._updating_input = true;
+
+    if (filter.valueSetter) {
+        filter.valueSetter.call(this, rule, value);
+    }
+    else {
+        var $value = rule.$el.find(QueryBuilder.selectors.value_container);
+
+        if (operator.nb_inputs == 1) {
+            value = [value];
+        }
+
+        for (var i = 0; i < operator.nb_inputs; i++) {
+            var name = Utils.escapeElementId(rule.id + '_value_' + i);
+
+            switch (filter.input) {
+                case 'radio':
+                    $value.find('[name=' + name + '][value="' + value[i] + '"]').prop('checked', true).trigger('change');
+                    break;
+
+                case 'checkbox':
+                    if (!$.isArray(value[i])) {
+                        value[i] = [value[i]];
+                    }
+                    // jshint loopfunc:true
+                    value[i].forEach(function(value) {
+                        $value.find('[name=' + name + '][value="' + value + '"]').prop('checked', true).trigger('change');
+                    });
+                    // jshint loopfunc:false
+                    break;
+
+                default:
+                    if (operator.multiple && filter.value_separator && $.isArray(value[i])) {
+                        value[i] = value[i].join(filter.value_separator);
+                    }
+                    $value.find('[name=' + name + ']').val(value[i]).trigger('change');
+                    break;
+            }
+        }
+    }
+
+    rule._updating_input = false;
+};
+
+/**
+ * Parses rule flags
+ * @param {object} rule
+ * @returns {object}
+ * @fires QueryBuilder.changer:parseRuleFlags
+ * @private
+ */
+QueryBuilder.prototype.parseRuleFlags = function(rule) {
+    var flags = $.extend({}, this.settings.default_rule_flags);
+
+    if (rule.readonly) {
+        $.extend(flags, {
+            filter_readonly: true,
+            operator_readonly: true,
+            value_readonly: true,
+            no_delete: true
+        });
+    }
+
+    if (rule.flags) {
+        $.extend(flags, rule.flags);
+    }
+
+    /**
+     * Modifies the consolidated rule's flags
+     * @event changer:parseRuleFlags
+     * @memberof QueryBuilder
+     * @param {object} flags
+     * @param {object} rule - <b>not</b> a Rule object
+     * @returns {object}
+     */
+    return this.change('parseRuleFlags', flags, rule);
+};
+
+/**
+ * Gets a copy of flags of a rule
+ * @param {object} flags
+ * @param {boolean} [all=false] - return all flags or only changes from default flags
+ * @returns {object}
+ * @private
+ */
+QueryBuilder.prototype.getRuleFlags = function(flags, all) {
+    if (all) {
+        return $.extend({}, flags);
+    }
+    else {
+        var ret = {};
+        $.each(this.settings.default_rule_flags, function(key, value) {
+            if (flags[key] !== value) {
+                ret[key] = flags[key];
+            }
+        });
+        return ret;
+    }
+};
+
+/**
+ * Parses group flags
+ * @param {object} group
+ * @returns {object}
+ * @fires QueryBuilder.changer:parseGroupFlags
+ * @private
+ */
+QueryBuilder.prototype.parseGroupFlags = function(group) {
+    var flags = $.extend({}, this.settings.default_group_flags);
+
+    if (group.readonly) {
+        $.extend(flags, {
+            condition_readonly: true,
+            no_add_rule: true,
+            no_add_group: true,
+            no_delete: true
+        });
+    }
+
+    if (group.flags) {
+        $.extend(flags, group.flags);
+    }
+
+    /**
+     * Modifies the consolidated group's flags
+     * @event changer:parseGroupFlags
+     * @memberof QueryBuilder
+     * @param {object} flags
+     * @param {object} group - <b>not</b> a Group object
+     * @returns {object}
+     */
+    return this.change('parseGroupFlags', flags, group);
+};
+
+/**
+ * Gets a copy of flags of a group
+ * @param {object} flags
+ * @param {boolean} [all=false] - return all flags or only changes from default flags
+ * @returns {object}
+ * @private
+ */
+QueryBuilder.prototype.getGroupFlags = function(flags, all) {
+    if (all) {
+        return $.extend({}, flags);
+    }
+    else {
+        var ret = {};
+        $.each(this.settings.default_group_flags, function(key, value) {
+            if (flags[key] !== value) {
+                ret[key] = flags[key];
+            }
+        });
+        return ret;
+    }
+};
+
+/**
+ * Translate a label either by looking in the `lang` object or in itself if it's an object where keys are language codes
+ * @param {string} [category]
+ * @param {string|object} key
+ * @returns {string}
+ * @fires QueryBuilder.changer:translate
+ */
+QueryBuilder.prototype.translate = function(category, key) {
+    if (!key) {
+        key = category;
+        category = undefined;
+    }
+
+    var translation;
+    if (typeof key === 'object') {
+        translation = key[this.settings.lang_code] || key['en'];
+    }
+    else {
+        translation = (category ? this.lang[category] : this.lang)[key] || key;
+    }
+
+    /**
+     * Modifies the translated label
+     * @event changer:translate
+     * @memberof QueryBuilder
+     * @param {string} translation
+     * @param {string|object} key
+     * @param {string} [category]
+     * @returns {string}
+     */
+    return this.change('translate', translation, key, category);
+};
+
+/**
+ * Returns a validation message
+ * @param {object} validation
+ * @param {string} type
+ * @param {string} def
+ * @returns {string}
+ * @private
+ */
+QueryBuilder.prototype.getValidationMessage = function(validation, type, def) {
+    return validation.messages && validation.messages[type] || def;
+};
+
+
+QueryBuilder.templates.group = '\
+<div id="{{= it.group_id }}" class="rules-group-container"> \
+  <div class="rules-group-header"> \
+    <div class="btn-group pull-right group-actions"> \
+      <button type="button" class="btn btn-xs btn-success" data-add="rule"> \
+        <i class="{{= it.icons.add_rule }}"></i> {{= it.translate("add_rule") }} \
+      </button> \
+      {{? it.settings.allow_groups===-1 || it.settings.allow_groups>=it.level }} \
+        <button type="button" class="btn btn-xs btn-success" data-add="group"> \
+          <i class="{{= it.icons.add_group }}"></i> {{= it.translate("add_group") }} \
+        </button> \
+      {{?}} \
+      {{? it.level>1 }} \
+        <button type="button" class="btn btn-xs btn-danger" data-delete="group"> \
+          <i class="{{= it.icons.remove_group }}"></i> {{= it.translate("delete_group") }} \
+        </button> \
+      {{?}} \
+    </div> \
+    <div class="btn-group group-conditions"> \
+      {{~ it.conditions: condition }} \
+        <label class="btn btn-xs btn-primary"> \
+          <input type="radio" name="{{= it.group_id }}_cond" value="{{= condition }}"> {{= it.translate("conditions", condition) }} \
+        </label> \
+      {{~}} \
+    </div> \
+    {{? it.settings.display_errors }} \
+      <div class="error-container"><i class="{{= it.icons.error }}"></i></div> \
+    {{?}} \
+  </div> \
+  <div class=rules-group-body> \
+    <div class=rules-list></div> \
+  </div> \
+</div>';
+
+QueryBuilder.templates.rule = '\
+<div id="{{= it.rule_id }}" class="rule-container"> \
+  <div class="rule-header"> \
+    <div class="btn-group pull-right rule-actions"> \
+      <button type="button" class="btn btn-xs btn-danger" data-delete="rule"> \
+        <i class="{{= it.icons.remove_rule }}"></i> {{= it.translate("delete_rule") }} \
+      </button> \
+    </div> \
+  </div> \
+  {{? it.settings.display_errors }} \
+    <div class="error-container"><i class="{{= it.icons.error }}"></i></div> \
+  {{?}} \
+  <div class="rule-filter-container"></div> \
+  <div class="rule-operator-container"></div> \
+  <div class="rule-value-container"></div> \
+</div>';
+
+QueryBuilder.templates.filterSelect = '\
+{{ var optgroup = null; }} \
+<select class="form-control" name="{{= it.rule.id }}_filter"> \
+  {{? it.settings.display_empty_filter }} \
+    <option value="-1">{{= it.settings.select_placeholder }}</option> \
+  {{?}} \
+  {{~ it.filters: filter }} \
+    {{? optgroup !== filter.optgroup }} \
+      {{? optgroup !== null }}</optgroup>{{?}} \
+      {{? (optgroup = filter.optgroup) !== null }} \
+        <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}"> \
+      {{?}} \
+    {{?}} \
+    <option value="{{= filter.id }}" {{? filter.icon}}data-icon="{{= filter.icon}}"{{?}}>{{= it.translate(filter.label) }}</option> \
+  {{~}} \
+  {{? optgroup !== null }}</optgroup>{{?}} \
+</select>';
+
+QueryBuilder.templates.operatorSelect = '\
+{{? it.operators.length === 1 }} \
+<span> \
+{{= it.translate("operators", it.operators[0].type) }} \
+</span> \
+{{?}} \
+{{ var optgroup = null; }} \
+<select class="form-control {{? it.operators.length === 1 }}hide{{?}}" name="{{= it.rule.id }}_operator"> \
+  {{~ it.operators: operator }} \
+    {{? optgroup !== operator.optgroup }} \
+      {{? optgroup !== null }}</optgroup>{{?}} \
+      {{? (optgroup = operator.optgroup) !== null }} \
+        <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}"> \
+      {{?}} \
+    {{?}} \
+    <option value="{{= operator.type }}" {{? operator.icon}}data-icon="{{= operator.icon}}"{{?}}>{{= it.translate("operators", operator.type) }}</option> \
+  {{~}} \
+  {{? optgroup !== null }}</optgroup>{{?}} \
+</select>';
+
+QueryBuilder.templates.ruleValueSelect = '\
+{{ var optgroup = null; }} \
+<select class="form-control" name="{{= it.name }}" {{? it.rule.filter.multiple }}multiple{{?}}> \
+  {{? it.rule.filter.placeholder }} \
+    <option value="{{= it.rule.filter.placeholder_value }}" disabled selected>{{= it.rule.filter.placeholder }}</option> \
+  {{?}} \
+  {{~ it.rule.filter.values: entry }} \
+    {{? optgroup !== entry.optgroup }} \
+      {{? optgroup !== null }}</optgroup>{{?}} \
+      {{? (optgroup = entry.optgroup) !== null }} \
+        <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}"> \
+      {{?}} \
+    {{?}} \
+    <option value="{{= entry.value }}">{{= entry.label }}</option> \
+  {{~}} \
+  {{? optgroup !== null }}</optgroup>{{?}} \
+</select>';
+
+/**
+ * Returns group's HTML
+ * @param {string} group_id
+ * @param {int} level
+ * @returns {string}
+ * @fires QueryBuilder.changer:getGroupTemplate
+ * @private
+ */
+QueryBuilder.prototype.getGroupTemplate = function(group_id, level) {
+    var h = this.templates.group({
+        builder: this,
+        group_id: group_id,
+        level: level,
+        conditions: this.settings.conditions,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of a group
+     * @event changer:getGroupTemplate
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param {int} level
+     * @returns {string}
+     */
+    return this.change('getGroupTemplate', h, level);
+};
+
+/**
+ * Returns rule's HTML
+ * @param {string} rule_id
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleTemplate
+ * @private
+ */
+QueryBuilder.prototype.getRuleTemplate = function(rule_id) {
+    var h = this.templates.rule({
+        builder: this,
+        rule_id: rule_id,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of a rule
+     * @event changer:getRuleTemplate
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @returns {string}
+     */
+    return this.change('getRuleTemplate', h);
+};
+
+/**
+ * Returns rule's filter HTML
+ * @param {Rule} rule
+ * @param {object[]} filters
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleFilterTemplate
+ * @private
+ */
+QueryBuilder.prototype.getRuleFilterSelect = function(rule, filters) {
+    var h = this.templates.filterSelect({
+        builder: this,
+        rule: rule,
+        filters: filters,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of the rule's filter dropdown
+     * @event changer:getRuleFilterSelect
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param {Rule} rule
+     * @param {QueryBuilder.Filter[]} filters
+     * @returns {string}
+     */
+    return this.change('getRuleFilterSelect', h, rule, filters);
+};
+
+/**
+ * Returns rule's operator HTML
+ * @param {Rule} rule
+ * @param {object[]} operators
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleOperatorTemplate
+ * @private
+ */
+QueryBuilder.prototype.getRuleOperatorSelect = function(rule, operators) {
+    var h = this.templates.operatorSelect({
+        builder: this,
+        rule: rule,
+        operators: operators,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of the rule's operator dropdown
+     * @event changer:getRuleOperatorSelect
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param {Rule} rule
+     * @param {QueryBuilder.Operator[]} operators
+     * @returns {string}
+     */
+    return this.change('getRuleOperatorSelect', h, rule, operators);
+};
+
+/**
+ * Returns the rule's value select HTML
+ * @param {string} name
+ * @param {Rule} rule
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleValueSelect
+ * @private
+ */
+QueryBuilder.prototype.getRuleValueSelect = function(name, rule) {
+    var h = this.templates.ruleValueSelect({
+        builder: this,
+        name: name,
+        rule: rule,
+        icons: this.icons,
+        settings: this.settings,
+        translate: this.translate.bind(this)
+    });
+
+    /**
+     * Modifies the raw HTML of the rule's value dropdown (in case of a "select filter)
+     * @event changer:getRuleValueSelect
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param [string} name
+     * @param {Rule} rule
+     * @returns {string}
+     */
+    return this.change('getRuleValueSelect', h, name, rule);
+};
+
+/**
+ * Returns the rule's value HTML
+ * @param {Rule} rule
+ * @param {int} value_id
+ * @returns {string}
+ * @fires QueryBuilder.changer:getRuleInput
+ * @private
+ */
+QueryBuilder.prototype.getRuleInput = function(rule, value_id) {
+    var filter = rule.filter;
+    var validation = rule.filter.validation || {};
+    var name = rule.id + '_value_' + value_id;
+    var c = filter.vertical ? ' class=block' : '';
+    var h = '';
+
+    if (typeof filter.input == 'function') {
+        h = filter.input.call(this, rule, name);
+    }
+    else {
+        switch (filter.input) {
+            case 'radio':
+            case 'checkbox':
+                Utils.iterateOptions(filter.values, function(key, val) {
+                    h += '<label' + c + '><input type="' + filter.input + '" name="' + name + '" value="' + key + '"> ' + val + '</label> ';
+                });
+                break;
+
+            case 'select':
+                h = this.getRuleValueSelect(name, rule);
+                break;
+
+            case 'textarea':
+                h += '<textarea class="form-control" name="' + name + '"';
+                if (filter.size) h += ' cols="' + filter.size + '"';
+                if (filter.rows) h += ' rows="' + filter.rows + '"';
+                if (validation.min !== undefined) h += ' minlength="' + validation.min + '"';
+                if (validation.max !== undefined) h += ' maxlength="' + validation.max + '"';
+                if (filter.placeholder) h += ' placeholder="' + filter.placeholder + '"';
+                h += '></textarea>';
+                break;
+
+            case 'number':
+                h += '<input class="form-control" type="number" name="' + name + '"';
+                if (validation.step !== undefined) h += ' step="' + validation.step + '"';
+                if (validation.min !== undefined) h += ' min="' + validation.min + '"';
+                if (validation.max !== undefined) h += ' max="' + validation.max + '"';
+                if (filter.placeholder) h += ' placeholder="' + filter.placeholder + '"';
+                if (filter.size) h += ' size="' + filter.size + '"';
+                h += '>';
+                break;
+
+            default:
+                h += '<input class="form-control" type="text" name="' + name + '"';
+                if (filter.placeholder) h += ' placeholder="' + filter.placeholder + '"';
+                if (filter.type === 'string' && validation.min !== undefined) h += ' minlength="' + validation.min + '"';
+                if (filter.type === 'string' && validation.max !== undefined) h += ' maxlength="' + validation.max + '"';
+                if (filter.size) h += ' size="' + filter.size + '"';
+                h += '>';
+        }
+    }
+
+    /**
+     * Modifies the raw HTML of the rule's input
+     * @event changer:getRuleInput
+     * @memberof QueryBuilder
+     * @param {string} html
+     * @param {Rule} rule
+     * @param {string} name - the name that the input must have
+     * @returns {string}
+     */
+    return this.change('getRuleInput', h, rule, name);
+};
+
+
+/**
+ * @namespace
+ */
+var Utils = {};
+
+/**
+ * @member {object}
+ * @memberof QueryBuilder
+ * @see Utils
+ */
+QueryBuilder.utils = Utils;
+
+/**
+ * @callback Utils#OptionsIteratee
+ * @param {string} key
+ * @param {string} value
+ * @param {string} [optgroup]
+ */
+
+/**
+ * Iterates over radio/checkbox/selection options, it accept four formats
+ *
+ * @example
+ * // array of values
+ * options = ['one', 'two', 'three']
+ * @example
+ * // simple key-value map
+ * options = {1: 'one', 2: 'two', 3: 'three'}
+ * @example
+ * // array of 1-element maps
+ * options = [{1: 'one'}, {2: 'two'}, {3: 'three'}]
+ * @example
+ * // array of elements
+ * options = [{value: 1, label: 'one', optgroup: 'group'}, {value: 2, label: 'two'}]
+ *
+ * @param {object|array} options
+ * @param {Utils#OptionsIteratee} tpl
+ */
+Utils.iterateOptions = function(options, tpl) {
+    if (options) {
+        if ($.isArray(options)) {
+            options.forEach(function(entry) {
+                if ($.isPlainObject(entry)) {
+                    // array of elements
+                    if ('value' in entry) {
+                        tpl(entry.value, entry.label || entry.value, entry.optgroup);
+                    }
+                    // array of one-element maps
+                    else {
+                        $.each(entry, function(key, val) {
+                            tpl(key, val);
+                            return false; // break after first entry
+                        });
+                    }
+                }
+                // array of values
+                else {
+                    tpl(entry, entry);
+                }
+            });
+        }
+        // unordered map
+        else {
+            $.each(options, function(key, val) {
+                tpl(key, val);
+            });
+        }
+    }
+};
+
+/**
+ * Replaces {0}, {1}, ... in a string
+ * @param {string} str
+ * @param {...*} args
+ * @returns {string}
+ */
+Utils.fmt = function(str, args) {
+    if (!Array.isArray(args)) {
+        args = Array.prototype.slice.call(arguments, 1);
+    }
+
+    return str.replace(/{([0-9]+)}/g, function(m, i) {
+        return args[parseInt(i)];
+    });
+};
+
+/**
+ * Throws an Error object with custom name or logs an error
+ * @param {boolean} [doThrow=true]
+ * @param {string} type
+ * @param {string} message
+ * @param {...*} args
+ */
+Utils.error = function() {
+    var i = 0;
+    var doThrow = typeof arguments[i] === 'boolean' ? arguments[i++] : true;
+    var type = arguments[i++];
+    var message = arguments[i++];
+    var args = Array.isArray(arguments[i]) ? arguments[i] : Array.prototype.slice.call(arguments, i);
+
+    if (doThrow) {
+        var err = new Error(Utils.fmt(message, args));
+        err.name = type + 'Error';
+        err.args = args;
+        throw err;
+    }
+    else {
+        console.error(type + 'Error: ' + Utils.fmt(message, args));
+    }
+};
+
+/**
+ * Changes the type of a value to int, float or bool
+ * @param {*} value
+ * @param {string} type - 'integer', 'double', 'boolean' or anything else (passthrough)
+ * @returns {*}
+ */
+Utils.changeType = function(value, type) {
+    if (value === '' || value === undefined) {
+        return undefined;
+    }
+
+    switch (type) {
+        // @formatter:off
+        case 'integer':
+            if (typeof value === 'string' && !/^-?\d+$/.test(value)) {
+                return value;
+            }
+            return parseInt(value);
+        case 'double':
+            if (typeof value === 'string' && !/^-?\d+\.?\d*$/.test(value)) {
+                return value;
+            }
+            return parseFloat(value);
+        case 'boolean':
+            if (typeof value === 'string' && !/^(0|1|true|false){1}$/i.test(value)) {
+                return value;
+            }
+            return value === true || value === 1 || value.toLowerCase() === 'true' || value === '1';
+        default: return value;
+        // @formatter:on
+    }
+};
+
+/**
+ * Escapes a string like PHP's mysql_real_escape_string does
+ * @param {string} value
+ * @returns {string}
+ */
+Utils.escapeString = function(value) {
+    if (typeof value != 'string') {
+        return value;
+    }
+
+    return value
+        .replace(/[\0\n\r\b\\\'\"]/g, function(s) {
+            switch (s) {
+                // @formatter:off
+                case '\0': return '\\0';
+                case '\n': return '\\n';
+                case '\r': return '\\r';
+                case '\b': return '\\b';
+                default:   return '\\' + s;
+                // @formatter:off
+            }
+        })
+        // uglify compliant
+        .replace(/\t/g, '\\t')
+        .replace(/\x1a/g, '\\Z');
+};
+
+/**
+ * Escapes a string for use in regex
+ * @param {string} str
+ * @returns {string}
+ */
+Utils.escapeRegExp = function(str) {
+    return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
+};
+
+/**
+ * Escapes a string for use in HTML element id
+ * @param {string} str
+ * @returns {string}
+ */
+Utils.escapeElementId = function(str) {
+    // Regex based on that suggested by:
+    // https://learn.jquery.com/using-jquery-core/faq/how-do-i-select-an-element-by-an-id-that-has-characters-used-in-css-notation/
+    // - escapes : . [ ] ,
+    // - avoids escaping already escaped values
+    return (str) ? str.replace(/(\\)?([:.\[\],])/g,
+            function( $0, $1, $2 ) { return $1 ? $0 : '\\' + $2; }) : str;
+};
+
+/**
+ * Sorts objects by grouping them by `key`, preserving initial order when possible
+ * @param {object[]} items
+ * @param {string} key
+ * @returns {object[]}
+ */
+Utils.groupSort = function(items, key) {
+    var optgroups = [];
+    var newItems = [];
+
+    items.forEach(function(item) {
+        var idx;
+
+        if (item[key]) {
+            idx = optgroups.lastIndexOf(item[key]);
+
+            if (idx == -1) {
+                idx = optgroups.length;
+            }
+            else {
+                idx++;
+            }
+        }
+        else {
+            idx = optgroups.length;
+        }
+
+        optgroups.splice(idx, 0, item[key]);
+        newItems.splice(idx, 0, item);
+    });
+
+    return newItems;
+};
+
+/**
+ * Defines properties on an Node prototype with getter and setter.<br>
+ *     Update events are emitted in the setter through root Model (if any).<br>
+ *     The object must have a `__` object, non enumerable property to store values.
+ * @param {function} obj
+ * @param {string[]} fields
+ */
+Utils.defineModelProperties = function(obj, fields) {
+    fields.forEach(function(field) {
+        Object.defineProperty(obj.prototype, field, {
+            enumerable: true,
+            get: function() {
+                return this.__[field];
+            },
+            set: function(value) {
+                var previousValue = (this.__[field] !== null && typeof this.__[field] == 'object') ?
+                    $.extend({}, this.__[field]) :
+                    this.__[field];
+
+                this.__[field] = value;
+
+                if (this.model !== null) {
+                    /**
+                     * After a value of the model changed
+                     * @event model:update
+                     * @memberof Model
+                     * @param {Node} node
+                     * @param {string} field
+                     * @param {*} value
+                     * @param {*} previousValue
+                     */
+                    this.model.trigger('update', this, field, value, previousValue);
+                }
+            }
+        });
+    });
+};
+
+
+/**
+ * Main object storing data model and emitting model events
+ * @constructor
+ */
+function Model() {
+    /**
+     * @member {Group}
+     * @readonly
+     */
+    this.root = null;
+
+    /**
+     * Base for event emitting
+     * @member {jQuery}
+     * @readonly
+     * @private
+     */
+    this.$ = $(this);
+}
+
+$.extend(Model.prototype, /** @lends Model.prototype */ {
+    /**
+     * Triggers an event on the model
+     * @param {string} type
+     * @returns {$.Event}
+     */
+    trigger: function(type) {
+        var event = new $.Event(type);
+        this.$.triggerHandler(event, Array.prototype.slice.call(arguments, 1));
+        return event;
+    },
+
+    /**
+     * Attaches an event listener on the model
+     * @param {string} type
+     * @param {function} cb
+     * @returns {Model}
+     */
+    on: function() {
+        this.$.on.apply(this.$, Array.prototype.slice.call(arguments));
+        return this;
+    },
+
+    /**
+     * Removes an event listener from the model
+     * @param {string} type
+     * @param {function} [cb]
+     * @returns {Model}
+     */
+    off: function() {
+        this.$.off.apply(this.$, Array.prototype.slice.call(arguments));
+        return this;
+    },
+
+    /**
+     * Attaches an event listener called once on the model
+     * @param {string} type
+     * @param {function} cb
+     * @returns {Model}
+     */
+    once: function() {
+        this.$.one.apply(this.$, Array.prototype.slice.call(arguments));
+        return this;
+    }
+});
+
+
+/**
+ * Root abstract object
+ * @constructor
+ * @param {Node} [parent]
+ * @param {jQuery} $el
+ */
+var Node = function(parent, $el) {
+    if (!(this instanceof Node)) {
+        return new Node(parent, $el);
+    }
+
+    Object.defineProperty(this, '__', { value: {} });
+
+    $el.data('queryBuilderModel', this);
+
+    /**
+     * @name level
+     * @member {int}
+     * @memberof Node
+     * @instance
+     * @readonly
+     */
+    this.__.level = 1;
+
+    /**
+     * @name error
+     * @member {string}
+     * @memberof Node
+     * @instance
+     */
+    this.__.error = null;
+
+    /**
+     * @name flags
+     * @member {object}
+     * @memberof Node
+     * @instance
+     * @readonly
+     */
+    this.__.flags = {};
+
+    /**
+     * @name data
+     * @member {object}
+     * @memberof Node
+     * @instance
+     */
+    this.__.data = undefined;
+
+    /**
+     * @member {jQuery}
+     * @readonly
+     */
+    this.$el = $el;
+
+    /**
+     * @member {string}
+     * @readonly
+     */
+    this.id = $el[0].id;
+
+    /**
+     * @member {Model}
+     * @readonly
+     */
+    this.model = null;
+
+    /**
+     * @member {Group}
+     * @readonly
+     */
+    this.parent = parent;
+};
+
+Utils.defineModelProperties(Node, ['level', 'error', 'data', 'flags']);
+
+Object.defineProperty(Node.prototype, 'parent', {
+    enumerable: true,
+    get: function() {
+        return this.__.parent;
+    },
+    set: function(value) {
+        this.__.parent = value;
+        this.level = value === null ? 1 : value.level + 1;
+        this.model = value === null ? null : value.model;
+    }
+});
+
+/**
+ * Checks if this Node is the root
+ * @returns {boolean}
+ */
+Node.prototype.isRoot = function() {
+    return (this.level === 1);
+};
+
+/**
+ * Returns the node position inside its parent
+ * @returns {int}
+ */
+Node.prototype.getPos = function() {
+    if (this.isRoot()) {
+        return -1;
+    }
+    else {
+        return this.parent.getNodePos(this);
+    }
+};
+
+/**
+ * Deletes self
+ * @fires Model.model:drop
+ */
+Node.prototype.drop = function() {
+    var model = this.model;
+
+    if (!!this.parent) {
+        this.parent.removeNode(this);
+    }
+
+    this.$el.removeData('queryBuilderModel');
+
+    if (model !== null) {
+        /**
+         * After a node of the model has been removed
+         * @event model:drop
+         * @memberof Model
+         * @param {Node} node
+         */
+        model.trigger('drop', this);
+    }
+};
+
+/**
+ * Moves itself after another Node
+ * @param {Node} target
+ * @fires Model.model:move
+ */
+Node.prototype.moveAfter = function(target) {
+    if (!this.isRoot()) {
+        this.move(target.parent, target.getPos() + 1);
+    }
+};
+
+/**
+ * Moves itself at the beginning of parent or another Group
+ * @param {Group} [target]
+ * @fires Model.model:move
+ */
+Node.prototype.moveAtBegin = function(target) {
+    if (!this.isRoot()) {
+        if (target === undefined) {
+            target = this.parent;
+        }
+
+        this.move(target, 0);
+    }
+};
+
+/**
+ * Moves itself at the end of parent or another Group
+ * @param {Group} [target]
+ * @fires Model.model:move
+ */
+Node.prototype.moveAtEnd = function(target) {
+    if (!this.isRoot()) {
+        if (target === undefined) {
+            target = this.parent;
+        }
+
+        this.move(target, target.length() === 0 ? 0 : target.length() - 1);
+    }
+};
+
+/**
+ * Moves itself at specific position of Group
+ * @param {Group} target
+ * @param {int} index
+ * @fires Model.model:move
+ */
+Node.prototype.move = function(target, index) {
+    if (!this.isRoot()) {
+        if (typeof target === 'number') {
+            index = target;
+            target = this.parent;
+        }
+
+        this.parent.removeNode(this);
+        target.insertNode(this, index, false);
+
+        if (this.model !== null) {
+            /**
+             * After a node of the model has been moved
+             * @event model:move
+             * @memberof Model
+             * @param {Node} node
+             * @param {Node} target
+             * @param {int} index
+             */
+            this.model.trigger('move', this, target, index);
+        }
+    }
+};
+
+
+/**
+ * Group object
+ * @constructor
+ * @extends Node
+ * @param {Group} [parent]
+ * @param {jQuery} $el
+ */
+var Group = function(parent, $el) {
+    if (!(this instanceof Group)) {
+        return new Group(parent, $el);
+    }
+
+    Node.call(this, parent, $el);
+
+    /**
+     * @member {object[]}
+     * @readonly
+     */
+    this.rules = [];
+
+    /**
+     * @name condition
+     * @member {string}
+     * @memberof Group
+     * @instance
+     */
+    this.__.condition = null;
+};
+
+Group.prototype = Object.create(Node.prototype);
+Group.prototype.constructor = Group;
+
+Utils.defineModelProperties(Group, ['condition']);
+
+/**
+ * Removes group's content
+ */
+Group.prototype.empty = function() {
+    this.each('reverse', function(rule) {
+        rule.drop();
+    }, function(group) {
+        group.drop();
+    });
+};
+
+/**
+ * Deletes self
+ */
+Group.prototype.drop = function() {
+    this.empty();
+    Node.prototype.drop.call(this);
+};
+
+/**
+ * Returns the number of children
+ * @returns {int}
+ */
+Group.prototype.length = function() {
+    return this.rules.length;
+};
+
+/**
+ * Adds a Node at specified index
+ * @param {Node} node
+ * @param {int} [index=end]
+ * @param {boolean} [trigger=false] - fire 'add' event
+ * @returns {Node} the inserted node
+ * @fires Model.model:add
+ */
+Group.prototype.insertNode = function(node, index, trigger) {
+    if (index === undefined) {
+        index = this.length();
+    }
+
+    this.rules.splice(index, 0, node);
+    node.parent = this;
+
+    if (trigger && this.model !== null) {
+        /**
+         * After a node of the model has been added
+         * @event model:add
+         * @memberof Model
+         * @param {Node} parent
+         * @param {Node} node
+         * @param {int} index
+         */
+        this.model.trigger('add', this, node, index);
+    }
+
+    return node;
+};
+
+/**
+ * Adds a new Group at specified index
+ * @param {jQuery} $el
+ * @param {int} [index=end]
+ * @returns {Group}
+ * @fires Model.model:add
+ */
+Group.prototype.addGroup = function($el, index) {
+    return this.insertNode(new Group(this, $el), index, true);
+};
+
+/**
+ * Adds a new Rule at specified index
+ * @param {jQuery} $el
+ * @param {int} [index=end]
+ * @returns {Rule}
+ * @fires Model.model:add
+ */
+Group.prototype.addRule = function($el, index) {
+    return this.insertNode(new Rule(this, $el), index, true);
+};
+
+/**
+ * Deletes a specific Node
+ * @param {Node} node
+ */
+Group.prototype.removeNode = function(node) {
+    var index = this.getNodePos(node);
+    if (index !== -1) {
+        node.parent = null;
+        this.rules.splice(index, 1);
+    }
+};
+
+/**
+ * Returns the position of a child Node
+ * @param {Node} node
+ * @returns {int}
+ */
+Group.prototype.getNodePos = function(node) {
+    return this.rules.indexOf(node);
+};
+
+/**
+ * @callback Model#GroupIteratee
+ * @param {Node} node
+ * @returns {boolean} stop the iteration
+ */
+
+/**
+ * Iterate over all Nodes
+ * @param {boolean} [reverse=false] - iterate in reverse order, required if you delete nodes
+ * @param {Model#GroupIteratee} cbRule - callback for Rules (can be `null` but not omitted)
+ * @param {Model#GroupIteratee} [cbGroup] - callback for Groups
+ * @param {object} [context] - context for callbacks
+ * @returns {boolean} if the iteration has been stopped by a callback
+ */
+Group.prototype.each = function(reverse, cbRule, cbGroup, context) {
+    if (typeof reverse !== 'boolean' && typeof reverse !== 'string') {
+        context = cbGroup;
+        cbGroup = cbRule;
+        cbRule = reverse;
+        reverse = false;
+    }
+    context = context === undefined ? null : context;
+
+    var i = reverse ? this.rules.length - 1 : 0;
+    var l = reverse ? 0 : this.rules.length - 1;
+    var c = reverse ? -1 : 1;
+    var next = function() {
+        return reverse ? i >= l : i <= l;
+    };
+    var stop = false;
+
+    for (; next(); i += c) {
+        if (this.rules[i] instanceof Group) {
+            if (!!cbGroup) {
+                stop = cbGroup.call(context, this.rules[i]) === false;
+            }
+        }
+        else if (!!cbRule) {
+            stop = cbRule.call(context, this.rules[i]) === false;
+        }
+
+        if (stop) {
+            break;
+        }
+    }
+
+    return !stop;
+};
+
+/**
+ * Checks if the group contains a particular Node
+ * @param {Node} node
+ * @param {boolean} [recursive=false]
+ * @returns {boolean}
+ */
+Group.prototype.contains = function(node, recursive) {
+    if (this.getNodePos(node) !== -1) {
+        return true;
+    }
+    else if (!recursive) {
+        return false;
+    }
+    else {
+        // the loop will return with false as soon as the Node is found
+        return !this.each(function() {
+            return true;
+        }, function(group) {
+            return !group.contains(node, true);
+        });
+    }
+};
+
+
+/**
+ * Rule object
+ * @constructor
+ * @extends Node
+ * @param {Group} parent
+ * @param {jQuery} $el
+ */
+var Rule = function(parent, $el) {
+    if (!(this instanceof Rule)) {
+        return new Rule(parent, $el);
+    }
+
+    Node.call(this, parent, $el);
+
+    this._updating_value = false;
+    this._updating_input = false;
+
+    /**
+     * @name filter
+     * @member {QueryBuilder.Filter}
+     * @memberof Rule
+     * @instance
+     */
+    this.__.filter = null;
+
+    /**
+     * @name operator
+     * @member {QueryBuilder.Operator}
+     * @memberof Rule
+     * @instance
+     */
+    this.__.operator = null;
+
+    /**
+     * @name value
+     * @member {*}
+     * @memberof Rule
+     * @instance
+     */
+    this.__.value = undefined;
+};
+
+Rule.prototype = Object.create(Node.prototype);
+Rule.prototype.constructor = Rule;
+
+Utils.defineModelProperties(Rule, ['filter', 'operator', 'value']);
+
+/**
+ * Checks if this Node is the root
+ * @returns {boolean} always false
+ */
+Rule.prototype.isRoot = function() {
+    return false;
+};
+
+
+/**
+ * @member {function}
+ * @memberof QueryBuilder
+ * @see Group
+ */
+QueryBuilder.Group = Group;
+
+/**
+ * @member {function}
+ * @memberof QueryBuilder
+ * @see Rule
+ */
+QueryBuilder.Rule = Rule;
+
+
+/**
+ * The {@link http://learn.jquery.com/plugins/|jQuery Plugins} namespace
+ * @external "jQuery.fn"
+ */
+
+/**
+ * Instanciates or accesses the {@link QueryBuilder} on an element
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @param {*} option - initial configuration or method name
+ * @param {...*} args - method arguments
+ *
+ * @example
+ * $('#builder').queryBuilder({ /** configuration object *\/ });
+ * @example
+ * $('#builder').queryBuilder('methodName', methodParam1, methodParam2);
+ */
+$.fn.queryBuilder = function(option) {
+    if (this.length === 0) {
+        Utils.error('Config', 'No target defined');
+    }
+    if (this.length > 1) {
+        Utils.error('Config', 'Unable to initialize on multiple target');
+    }
+
+    var data = this.data('queryBuilder');
+    var options = (typeof option == 'object' && option) || {};
+
+    if (!data && option == 'destroy') {
+        return this;
+    }
+    if (!data) {
+        var builder = new QueryBuilder(this, options);
+        this.data('queryBuilder', builder);
+        builder.init(options.rules);
+    }
+    if (typeof option == 'string') {
+        return data[option].apply(data, Array.prototype.slice.call(arguments, 1));
+    }
+
+    return this;
+};
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder
+ */
+$.fn.queryBuilder.constructor = QueryBuilder;
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder.defaults
+ */
+$.fn.queryBuilder.defaults = QueryBuilder.defaults;
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder.defaults
+ */
+$.fn.queryBuilder.extend = QueryBuilder.extend;
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder.define
+ */
+$.fn.queryBuilder.define = QueryBuilder.define;
+
+/**
+ * @function
+ * @memberof external:"jQuery.fn"
+ * @see QueryBuilder.regional
+ */
+$.fn.queryBuilder.regional = QueryBuilder.regional;
+
+
+/**
+ * @class BtCheckbox
+ * @memberof module:plugins
+ * @description Applies Awesome Bootstrap Checkbox for checkbox and radio inputs.
+ * @param {object} [options]
+ * @param {string} [options.font='glyphicons']
+ * @param {string} [options.color='default']
+ */
+QueryBuilder.define('bt-checkbox', function(options) {
+    if (options.font == 'glyphicons') {
+        this.$el.addClass('bt-checkbox-glyphicons');
+    }
+
+    this.on('getRuleInput.filter', function(h, rule, name) {
+        var filter = rule.filter;
+
+        if ((filter.input === 'radio' || filter.input === 'checkbox') && !filter.plugin) {
+            h.value = '';
+
+            if (!filter.colors) {
+                filter.colors = {};
+            }
+            if (filter.color) {
+                filter.colors._def_ = filter.color;
+            }
+
+            var style = filter.vertical ? ' style="display:block"' : '';
+            var i = 0;
+
+            Utils.iterateOptions(filter.values, function(key, val) {
+                var color = filter.colors[key] || filter.colors._def_ || options.color;
+                var id = name + '_' + (i++);
+
+                h.value+= '\
+<div' + style + ' class="' + filter.input + ' ' + filter.input + '-' + color + '"> \
+  <input type="' + filter.input + '" name="' + name + '" id="' + id + '" value="' + key + '"> \
+  <label for="' + id + '">' + val + '</label> \
+</div>';
+            });
+        }
+    });
+}, {
+    font: 'glyphicons',
+    color: 'default'
+});
+
+
+/**
+ * @class BtSelectpicker
+ * @memberof module:plugins
+ * @descriptioon Applies Bootstrap Select on filters and operators combo-boxes.
+ * @param {object} [options]
+ * @param {string} [options.container='body']
+ * @param {string} [options.style='btn-inverse btn-xs']
+ * @param {int|string} [options.width='auto']
+ * @param {boolean} [options.showIcon=false]
+ * @throws MissingLibraryError
+ */
+QueryBuilder.define('bt-selectpicker', function(options) {
+    if (!$.fn.selectpicker || !$.fn.selectpicker.Constructor) {
+        Utils.error('MissingLibrary', 'Bootstrap Select is required to use "bt-selectpicker" plugin. Get it here: http://silviomoreto.github.io/bootstrap-select');
+    }
+
+    var Selectors = QueryBuilder.selectors;
+
+    // init selectpicker
+    this.on('afterCreateRuleFilters', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).removeClass('form-control').selectpicker(options);
+    });
+
+    this.on('afterCreateRuleOperators', function(e, rule) {
+        rule.$el.find(Selectors.rule_operator).removeClass('form-control').selectpicker(options);
+    });
+
+    // update selectpicker on change
+    this.on('afterUpdateRuleFilter', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).selectpicker('render');
+    });
+
+    this.on('afterUpdateRuleOperator', function(e, rule) {
+        rule.$el.find(Selectors.rule_operator).selectpicker('render');
+    });
+
+    this.on('beforeDeleteRule', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).selectpicker('destroy');
+        rule.$el.find(Selectors.rule_operator).selectpicker('destroy');
+    });
+}, {
+    container: 'body',
+    style: 'btn-inverse btn-xs',
+    width: 'auto',
+    showIcon: false
+});
+
+
+/**
+ * @class BtTooltipErrors
+ * @memberof module:plugins
+ * @description Applies Bootstrap Tooltips on validation error messages.
+ * @param {object} [options]
+ * @param {string} [options.placement='right']
+ * @throws MissingLibraryError
+ */
+QueryBuilder.define('bt-tooltip-errors', function(options) {
+    if (!$.fn.tooltip || !$.fn.tooltip.Constructor || !$.fn.tooltip.Constructor.prototype.fixTitle) {
+        Utils.error('MissingLibrary', 'Bootstrap Tooltip is required to use "bt-tooltip-errors" plugin. Get it here: http://getbootstrap.com');
+    }
+
+    var self = this;
+
+    // add BT Tooltip data
+    this.on('getRuleTemplate.filter getGroupTemplate.filter', function(h) {
+        var $h = $(h.value);
+        $h.find(QueryBuilder.selectors.error_container).attr('data-toggle', 'tooltip');
+        h.value = $h.prop('outerHTML');
+    });
+
+    // init/refresh tooltip when title changes
+    this.model.on('update', function(e, node, field) {
+        if (field == 'error' && self.settings.display_errors) {
+            node.$el.find(QueryBuilder.selectors.error_container).eq(0)
+                .tooltip(options)
+                .tooltip('hide')
+                .tooltip('fixTitle');
+        }
+    });
+}, {
+    placement: 'right'
+});
+
+
+/**
+ * @class ChangeFilters
+ * @memberof module:plugins
+ * @description Allows to change available filters after plugin initialization.
+ */
+
+QueryBuilder.extend(/** @lends module:plugins.ChangeFilters.prototype */ {
+    /**
+     * Change the filters of the builder
+     * @param {boolean} [deleteOrphans=false] - delete rules using old filters
+     * @param {QueryBuilder[]} filters
+     * @fires module:plugins.ChangeFilters.changer:setFilters
+     * @fires module:plugins.ChangeFilters.afterSetFilters
+     * @throws ChangeFilterError
+     */
+    setFilters: function(deleteOrphans, filters) {
+        var self = this;
+
+        if (filters === undefined) {
+            filters = deleteOrphans;
+            deleteOrphans = false;
+        }
+
+        filters = this.checkFilters(filters);
+
+        /**
+         * Modifies the filters before {@link module:plugins.ChangeFilters.setFilters} method
+         * @event changer:setFilters
+         * @memberof module:plugins.ChangeFilters
+         * @param {QueryBuilder.Filter[]} filters
+         * @returns {QueryBuilder.Filter[]}
+         */
+        filters = this.change('setFilters', filters);
+
+        var filtersIds = filters.map(function(filter) {
+            return filter.id;
+        });
+
+        // check for orphans
+        if (!deleteOrphans) {
+            (function checkOrphans(node) {
+                node.each(
+                    function(rule) {
+                        if (rule.filter && filtersIds.indexOf(rule.filter.id) === -1) {
+                            Utils.error('ChangeFilter', 'A rule is using filter "{0}"', rule.filter.id);
+                        }
+                    },
+                    checkOrphans
+                );
+            }(this.model.root));
+        }
+
+        // replace filters
+        this.filters = filters;
+
+        // apply on existing DOM
+        (function updateBuilder(node) {
+            node.each(true,
+                function(rule) {
+                    if (rule.filter && filtersIds.indexOf(rule.filter.id) === -1) {
+                        rule.drop();
+
+                        self.trigger('rulesChanged');
+                    }
+                    else {
+                        self.createRuleFilters(rule);
+
+                        rule.$el.find(QueryBuilder.selectors.rule_filter).val(rule.filter ? rule.filter.id : '-1');
+                        self.trigger('afterUpdateRuleFilter', rule);
+                    }
+                },
+                updateBuilder
+            );
+        }(this.model.root));
+
+        // update plugins
+        if (this.settings.plugins) {
+            if (this.settings.plugins['unique-filter']) {
+                this.updateDisabledFilters();
+            }
+            if (this.settings.plugins['bt-selectpicker']) {
+                this.$el.find(QueryBuilder.selectors.rule_filter).selectpicker('render');
+            }
+        }
+
+        // reset the default_filter if does not exist anymore
+        if (this.settings.default_filter) {
+            try {
+                this.getFilterById(this.settings.default_filter);
+            }
+            catch (e) {
+                this.settings.default_filter = null;
+            }
+        }
+
+        /**
+         * After {@link module:plugins.ChangeFilters.setFilters} method
+         * @event afterSetFilters
+         * @memberof module:plugins.ChangeFilters
+         * @param {QueryBuilder.Filter[]} filters
+         */
+        this.trigger('afterSetFilters', filters);
+    },
+
+    /**
+     * Adds a new filter to the builder
+     * @param {QueryBuilder.Filter|Filter[]} newFilters
+     * @param {int|string} [position=#end] - index or '#start' or '#end'
+     * @fires module:plugins.ChangeFilters.changer:setFilters
+     * @fires module:plugins.ChangeFilters.afterSetFilters
+     * @throws ChangeFilterError
+     */
+    addFilter: function(newFilters, position) {
+        if (position === undefined || position == '#end') {
+            position = this.filters.length;
+        }
+        else if (position == '#start') {
+            position = 0;
+        }
+
+        if (!$.isArray(newFilters)) {
+            newFilters = [newFilters];
+        }
+
+        var filters = $.extend(true, [], this.filters);
+
+        // numeric position
+        if (parseInt(position) == position) {
+            Array.prototype.splice.apply(filters, [position, 0].concat(newFilters));
+        }
+        else {
+            // after filter by its id
+            if (this.filters.some(function(filter, index) {
+                    if (filter.id == position) {
+                        position = index + 1;
+                        return true;
+                    }
+                })
+            ) {
+                Array.prototype.splice.apply(filters, [position, 0].concat(newFilters));
+            }
+            // defaults to end of list
+            else {
+                Array.prototype.push.apply(filters, newFilters);
+            }
+        }
+
+        this.setFilters(filters);
+    },
+
+    /**
+     * Removes a filter from the builder
+     * @param {string|string[]} filterIds
+     * @param {boolean} [deleteOrphans=false] delete rules using old filters
+     * @fires module:plugins.ChangeFilters.changer:setFilters
+     * @fires module:plugins.ChangeFilters.afterSetFilters
+     * @throws ChangeFilterError
+     */
+    removeFilter: function(filterIds, deleteOrphans) {
+        var filters = $.extend(true, [], this.filters);
+        if (typeof filterIds === 'string') {
+            filterIds = [filterIds];
+        }
+
+        filters = filters.filter(function(filter) {
+            return filterIds.indexOf(filter.id) === -1;
+        });
+
+        this.setFilters(deleteOrphans, filters);
+    }
+});
+
+
+/**
+ * @class ChosenSelectpicker
+ * @memberof module:plugins
+ * @descriptioon Applies chosen-js Select on filters and operators combo-boxes.
+ * @param {object} [options] Supports all the options for chosen
+ * @throws MissingLibraryError
+ */
+QueryBuilder.define('chosen-selectpicker', function(options) {
+
+    if (!$.fn.chosen) {
+        Utils.error('MissingLibrary', 'chosen is required to use "chosen-selectpicker" plugin. Get it here: https://github.com/harvesthq/chosen');
+    }
+
+    if (this.settings.plugins['bt-selectpicker']) {
+        Utils.error('Conflict', 'bt-selectpicker is already selected as the dropdown plugin. Please remove chosen-selectpicker from the plugin list');
+    }
+
+    var Selectors = QueryBuilder.selectors;
+
+    // init selectpicker
+    this.on('afterCreateRuleFilters', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).removeClass('form-control').chosen(options);
+    });
+
+    this.on('afterCreateRuleOperators', function(e, rule) {
+        rule.$el.find(Selectors.rule_operator).removeClass('form-control').chosen(options);
+    });
+
+    // update selectpicker on change
+    this.on('afterUpdateRuleFilter', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).trigger('chosen:updated');
+    });
+
+    this.on('afterUpdateRuleOperator', function(e, rule) {
+        rule.$el.find(Selectors.rule_operator).trigger('chosen:updated');
+    });
+
+    this.on('beforeDeleteRule', function(e, rule) {
+        rule.$el.find(Selectors.rule_filter).chosen('destroy');
+        rule.$el.find(Selectors.rule_operator).chosen('destroy');
+    });
+});
+
+
+/**
+ * @class FilterDescription
+ * @memberof module:plugins
+ * @description Provides three ways to display a description about a filter: inline, Bootsrap Popover or Bootbox.
+ * @param {object} [options]
+ * @param {string} [options.icon='glyphicon glyphicon-info-sign']
+ * @param {string} [options.mode='popover'] - inline, popover or bootbox
+ * @throws ConfigError
+ */
+QueryBuilder.define('filter-description', function(options) {
+    // INLINE
+    if (options.mode === 'inline') {
+        this.on('afterUpdateRuleFilter afterUpdateRuleOperator', function(e, rule) {
+            var $p = rule.$el.find('p.filter-description');
+            var description = e.builder.getFilterDescription(rule.filter, rule);
+
+            if (!description) {
+                $p.hide();
+            }
+            else {
+                if ($p.length === 0) {
+                    $p = $('<p class="filter-description"></p>');
+                    $p.appendTo(rule.$el);
+                }
+                else {
+                    $p.css('display', '');
+                }
+
+                $p.html('<i class="' + options.icon + '"></i> ' + description);
+            }
+        });
+    }
+    // POPOVER
+    else if (options.mode === 'popover') {
+        if (!$.fn.popover || !$.fn.popover.Constructor || !$.fn.popover.Constructor.prototype.fixTitle) {
+            Utils.error('MissingLibrary', 'Bootstrap Popover is required to use "filter-description" plugin. Get it here: http://getbootstrap.com');
+        }
+
+        this.on('afterUpdateRuleFilter afterUpdateRuleOperator', function(e, rule) {
+            var $b = rule.$el.find('button.filter-description');
+            var description = e.builder.getFilterDescription(rule.filter, rule);
+
+            if (!description) {
+                $b.hide();
+
+                if ($b.data('bs.popover')) {
+                    $b.popover('hide');
+                }
+            }
+            else {
+                if ($b.length === 0) {
+                    $b = $('<button type="button" class="btn btn-xs btn-info filter-description" data-toggle="popover"><i class="' + options.icon + '"></i></button>');
+                    $b.prependTo(rule.$el.find(QueryBuilder.selectors.rule_actions));
+
+                    $b.popover({
+                        placement: 'left',
+                        container: 'body',
+                        html: true
+                    });
+
+                    $b.on('mouseout', function() {
+                        $b.popover('hide');
+                    });
+                }
+                else {
+                    $b.css('display', '');
+                }
+
+                $b.data('bs.popover').options.content = description;
+
+                if ($b.attr('aria-describedby')) {
+                    $b.popover('show');
+                }
+            }
+        });
+    }
+    // BOOTBOX
+    else if (options.mode === 'bootbox') {
+        if (!('bootbox' in window)) {
+            Utils.error('MissingLibrary', 'Bootbox is required to use "filter-description" plugin. Get it here: http://bootboxjs.com');
+        }
+
+        this.on('afterUpdateRuleFilter afterUpdateRuleOperator', function(e, rule) {
+            var $b = rule.$el.find('button.filter-description');
+            var description = e.builder.getFilterDescription(rule.filter, rule);
+
+            if (!description) {
+                $b.hide();
+            }
+            else {
+                if ($b.length === 0) {
+                    $b = $('<button type="button" class="btn btn-xs btn-info filter-description" data-toggle="bootbox"><i class="' + options.icon + '"></i></button>');
+                    $b.prependTo(rule.$el.find(QueryBuilder.selectors.rule_actions));
+
+                    $b.on('click', function() {
+                        bootbox.alert($b.data('description'));
+                    });
+                }
+                else {
+                    $b.css('display', '');
+                }
+
+                $b.data('description', description);
+            }
+        });
+    }
+}, {
+    icon: 'glyphicon glyphicon-info-sign',
+    mode: 'popover'
+});
+
+QueryBuilder.extend(/** @lends module:plugins.FilterDescription.prototype */ {
+    /**
+     * Returns the description of a filter for a particular rule (if present)
+     * @param {object} filter
+     * @param {Rule} [rule]
+     * @returns {string}
+     * @private
+     */
+    getFilterDescription: function(filter, rule) {
+        if (!filter) {
+            return undefined;
+        }
+        else if (typeof filter.description == 'function') {
+            return filter.description.call(this, rule);
+        }
+        else {
+            return filter.description;
+        }
+    }
+});
+
+
+/**
+ * @class Invert
+ * @memberof module:plugins
+ * @description Allows to invert a rule operator, a group condition or the entire builder.
+ * @param {object} [options]
+ * @param {string} [options.icon='glyphicon glyphicon-random']
+ * @param {boolean} [options.recursive=true]
+ * @param {boolean} [options.invert_rules=true]
+ * @param {boolean} [options.display_rules_button=false]
+ * @param {boolean} [options.silent_fail=false]
+ */
+QueryBuilder.define('invert', function(options) {
+    var self = this;
+    var Selectors = QueryBuilder.selectors;
+
+    // Bind events
+    this.on('afterInit', function() {
+        self.$el.on('click.queryBuilder', '[data-invert=group]', function() {
+            var $group = $(this).closest(Selectors.group_container);
+            self.invert(self.getModel($group), options);
+        });
+
+        if (options.display_rules_button && options.invert_rules) {
+            self.$el.on('click.queryBuilder', '[data-invert=rule]', function() {
+                var $rule = $(this).closest(Selectors.rule_container);
+                self.invert(self.getModel($rule), options);
+            });
+        }
+    });
+
+    // Modify templates
+    if (!options.disable_template) {
+        this.on('getGroupTemplate.filter', function(h) {
+            var $h = $(h.value);
+            $h.find(Selectors.condition_container).after(
+                '<button type="button" class="btn btn-xs btn-default" data-invert="group">' +
+                '<i class="' + options.icon + '"></i> ' + self.translate('invert') +
+                '</button>'
+            );
+            h.value = $h.prop('outerHTML');
+        });
+
+        if (options.display_rules_button && options.invert_rules) {
+            this.on('getRuleTemplate.filter', function(h) {
+                var $h = $(h.value);
+                $h.find(Selectors.rule_actions).prepend(
+                    '<button type="button" class="btn btn-xs btn-default" data-invert="rule">' +
+                    '<i class="' + options.icon + '"></i> ' + self.translate('invert') +
+                    '</button>'
+                );
+                h.value = $h.prop('outerHTML');
+            });
+        }
+    }
+}, {
+    icon: 'glyphicon glyphicon-random',
+    recursive: true,
+    invert_rules: true,
+    display_rules_button: false,
+    silent_fail: false,
+    disable_template: false
+});
+
+QueryBuilder.defaults({
+    operatorOpposites: {
+        'equal':            'not_equal',
+        'not_equal':        'equal',
+        'in':               'not_in',
+        'not_in':           'in',
+        'less':             'greater_or_equal',
+        'less_or_equal':    'greater',
+        'greater':          'less_or_equal',
+        'greater_or_equal': 'less',
+        'between':          'not_between',
+        'not_between':      'between',
+        'begins_with':      'not_begins_with',
+        'not_begins_with':  'begins_with',
+        'contains':         'not_contains',
+        'not_contains':     'contains',
+        'ends_with':        'not_ends_with',
+        'not_ends_with':    'ends_with',
+        'is_empty':         'is_not_empty',
+        'is_not_empty':     'is_empty',
+        'is_null':          'is_not_null',
+        'is_not_null':      'is_null'
+    },
+
+    conditionOpposites: {
+        'AND': 'OR',
+        'OR': 'AND'
+    }
+});
+
+QueryBuilder.extend(/** @lends module:plugins.Invert.prototype */ {
+    /**
+     * Invert a Group, a Rule or the whole builder
+     * @param {Node} [node]
+     * @param {object} [options] {@link module:plugins.Invert}
+     * @fires module:plugins.Invert.afterInvert
+     * @throws InvertConditionError, InvertOperatorError
+     */
+    invert: function(node, options) {
+        if (!(node instanceof Node)) {
+            if (!this.model.root) return;
+            options = node;
+            node = this.model.root;
+        }
+
+        if (typeof options != 'object') options = {};
+        if (options.recursive === undefined) options.recursive = true;
+        if (options.invert_rules === undefined) options.invert_rules = true;
+        if (options.silent_fail === undefined) options.silent_fail = false;
+        if (options.trigger === undefined) options.trigger = true;
+
+        if (node instanceof Group) {
+            // invert group condition
+            if (this.settings.conditionOpposites[node.condition]) {
+                node.condition = this.settings.conditionOpposites[node.condition];
+            }
+            else if (!options.silent_fail) {
+                Utils.error('InvertCondition', 'Unknown inverse of condition "{0}"', node.condition);
+            }
+
+            // recursive call
+            if (options.recursive) {
+                var tempOpts = $.extend({}, options, { trigger: false });
+                node.each(function(rule) {
+                    if (options.invert_rules) {
+                        this.invert(rule, tempOpts);
+                    }
+                }, function(group) {
+                    this.invert(group, tempOpts);
+                }, this);
+            }
+        }
+        else if (node instanceof Rule) {
+            if (node.operator && !node.filter.no_invert) {
+                // invert rule operator
+                if (this.settings.operatorOpposites[node.operator.type]) {
+                    var invert = this.settings.operatorOpposites[node.operator.type];
+                    // check if the invert is "authorized"
+                    if (!node.filter.operators || node.filter.operators.indexOf(invert) != -1) {
+                        node.operator = this.getOperatorByType(invert);
+                    }
+                }
+                else if (!options.silent_fail) {
+                    Utils.error('InvertOperator', 'Unknown inverse of operator "{0}"', node.operator.type);
+                }
+            }
+        }
+
+        if (options.trigger) {
+            /**
+             * After {@link module:plugins.Invert.invert} method
+             * @event afterInvert
+             * @memberof module:plugins.Invert
+             * @param {Node} node - the main group or rule that has been modified
+             * @param {object} options
+             */
+            this.trigger('afterInvert', node, options);
+
+            this.trigger('rulesChanged');
+        }
+    }
+});
+
+
+/**
+ * @class MongoDbSupport
+ * @memberof module:plugins
+ * @description Allows to export rules as a MongoDB find object as well as populating the builder from a MongoDB object.
+ */
+
+QueryBuilder.defaults({
+    mongoOperators: {
+        // @formatter:off
+        equal:            function(v) { return v[0]; },
+        not_equal:        function(v) { return { '$ne': v[0] }; },
+        in:               function(v) { return { '$in': v }; },
+        not_in:           function(v) { return { '$nin': v }; },
+        less:             function(v) { return { '$lt': v[0] }; },
+        less_or_equal:    function(v) { return { '$lte': v[0] }; },
+        greater:          function(v) { return { '$gt': v[0] }; },
+        greater_or_equal: function(v) { return { '$gte': v[0] }; },
+        between:          function(v) { return { '$gte': v[0], '$lte': v[1] }; },
+        not_between:      function(v) { return { '$lt': v[0], '$gt': v[1] }; },
+        begins_with:      function(v) { return { '$regex': '^' + Utils.escapeRegExp(v[0]) }; },
+        not_begins_with:  function(v) { return { '$regex': '^(?!' + Utils.escapeRegExp(v[0]) + ')' }; },
+        contains:         function(v) { return { '$regex': Utils.escapeRegExp(v[0]) }; },
+        not_contains:     function(v) { return { '$regex': '^((?!' + Utils.escapeRegExp(v[0]) + ').)*$', '$options': 's' }; },
+        ends_with:        function(v) { return { '$regex': Utils.escapeRegExp(v[0]) + '$' }; },
+        not_ends_with:    function(v) { return { '$regex': '(?<!' + Utils.escapeRegExp(v[0]) + ')$' }; },
+        is_empty:         function(v) { return ''; },
+        is_not_empty:     function(v) { return { '$ne': '' }; },
+        is_null:          function(v) { return null; },
+        is_not_null:      function(v) { return { '$ne': null }; }
+        // @formatter:on
+    },
+
+    mongoRuleOperators: {
+        $eq: function(v) {
+            return {
+                'val': v,
+                'op': v === null ? 'is_null' : (v === '' ? 'is_empty' : 'equal')
+            };
+        },
+        $ne: function(v) {
+            v = v.$ne;
+            return {
+                'val': v,
+                'op': v === null ? 'is_not_null' : (v === '' ? 'is_not_empty' : 'not_equal')
+            };
+        },
+        $regex: function(v) {
+            v = v.$regex;
+            if (v.slice(0, 4) == '^(?!' && v.slice(-1) == ')') {
+                return { 'val': v.slice(4, -1), 'op': 'not_begins_with' };
+            }
+            else if (v.slice(0, 5) == '^((?!' && v.slice(-5) == ').)*$') {
+                return { 'val': v.slice(5, -5), 'op': 'not_contains' };
+            }
+            else if (v.slice(0, 4) == '(?<!' && v.slice(-2) == ')$') {
+                return { 'val': v.slice(4, -2), 'op': 'not_ends_with' };
+            }
+            else if (v.slice(-1) == '$') {
+                return { 'val': v.slice(0, -1), 'op': 'ends_with' };
+            }
+            else if (v.slice(0, 1) == '^') {
+                return { 'val': v.slice(1), 'op': 'begins_with' };
+            }
+            else {
+                return { 'val': v, 'op': 'contains' };
+            }
+        },
+        between: function(v) {
+            return { 'val': [v.$gte, v.$lte], 'op': 'between' };
+        },
+        not_between: function(v) {
+            return { 'val': [v.$lt, v.$gt], 'op': 'not_between' };
+        },
+        $in: function(v) {
+            return { 'val': v.$in, 'op': 'in' };
+        },
+        $nin: function(v) {
+            return { 'val': v.$nin, 'op': 'not_in' };
+        },
+        $lt: function(v) {
+            return { 'val': v.$lt, 'op': 'less' };
+        },
+        $lte: function(v) {
+            return { 'val': v.$lte, 'op': 'less_or_equal' };
+        },
+        $gt: function(v) {
+            return { 'val': v.$gt, 'op': 'greater' };
+        },
+        $gte: function(v) {
+            return { 'val': v.$gte, 'op': 'greater_or_equal' };
+        }
+    }
+});
+
+QueryBuilder.extend(/** @lends module:plugins.MongoDbSupport.prototype */ {
+    /**
+     * Returns rules as a MongoDB query
+     * @param {object} [data] - current rules by default
+     * @returns {object}
+     * @fires module:plugins.MongoDbSupport.changer:getMongoDBField
+     * @fires module:plugins.MongoDbSupport.changer:ruleToMongo
+     * @fires module:plugins.MongoDbSupport.changer:groupToMongo
+     * @throws UndefinedMongoConditionError, UndefinedMongoOperatorError
+     */
+    getMongo: function(data) {
+        data = (data === undefined) ? this.getRules() : data;
+
+        if (!data) {
+            return null;
+        }
+
+        var self = this;
+
+        return (function parse(group) {
+            if (!group.condition) {
+                group.condition = self.settings.default_condition;
+            }
+            if (['AND', 'OR'].indexOf(group.condition.toUpperCase()) === -1) {
+                Utils.error('UndefinedMongoCondition', 'Unable to build MongoDB query with condition "{0}"', group.condition);
+            }
+
+            if (!group.rules) {
+                return {};
+            }
+
+            var parts = [];
+
+            group.rules.forEach(function(rule) {
+                if (rule.rules && rule.rules.length > 0) {
+                    parts.push(parse(rule));
+                }
+                else {
+                    var mdb = self.settings.mongoOperators[rule.operator];
+                    var ope = self.getOperatorByType(rule.operator);
+
+                    if (mdb === undefined) {
+                        Utils.error('UndefinedMongoOperator', 'Unknown MongoDB operation for operator "{0}"', rule.operator);
+                    }
+
+                    if (ope.nb_inputs !== 0) {
+                        if (!(rule.value instanceof Array)) {
+                            rule.value = [rule.value];
+                        }
+                    }
+
+                    /**
+                     * Modifies the MongoDB field used by a rule
+                     * @event changer:getMongoDBField
+                     * @memberof module:plugins.MongoDbSupport
+                     * @param {string} field
+                     * @param {Rule} rule
+                     * @returns {string}
+                     */
+                    var field = self.change('getMongoDBField', rule.field, rule);
+
+                    var ruleExpression = {};
+                    ruleExpression[field] = mdb.call(self, rule.value);
+
+                    /**
+                     * Modifies the MongoDB expression generated for a rul
+                     * @event changer:ruleToMongo
+                     * @memberof module:plugins.MongoDbSupport
+                     * @param {object} expression
+                     * @param {Rule} rule
+                     * @param {*} value
+                     * @param {function} valueWrapper - function that takes the value and adds the operator
+                     * @returns {object}
+                     */
+                    parts.push(self.change('ruleToMongo', ruleExpression, rule, rule.value, mdb));
+                }
+            });
+
+            var groupExpression = {};
+            groupExpression['$' + group.condition.toLowerCase()] = parts;
+
+            /**
+             * Modifies the MongoDB expression generated for a group
+             * @event changer:groupToMongo
+             * @memberof module:plugins.MongoDbSupport
+             * @param {object} expression
+             * @param {Group} group
+             * @returns {object}
+             */
+            return self.change('groupToMongo', groupExpression, group);
+        }(data));
+    },
+
+    /**
+     * Converts a MongoDB query to rules
+     * @param {object} query
+     * @returns {object}
+     * @fires module:plugins.MongoDbSupport.changer:parseMongoNode
+     * @fires module:plugins.MongoDbSupport.changer:getMongoDBFieldID
+     * @fires module:plugins.MongoDbSupport.changer:mongoToRule
+     * @fires module:plugins.MongoDbSupport.changer:mongoToGroup
+     * @throws MongoParseError, UndefinedMongoConditionError, UndefinedMongoOperatorError
+     */
+    getRulesFromMongo: function(query) {
+        if (query === undefined || query === null) {
+            return null;
+        }
+
+        var self = this;
+
+        /**
+         * Custom parsing of a MongoDB expression, you can return a sub-part of the expression, or a well formed group or rule JSON
+         * @event changer:parseMongoNode
+         * @memberof module:plugins.MongoDbSupport
+         * @param {object} expression
+         * @returns {object} expression, rule or group
+         */
+        query = self.change('parseMongoNode', query);
+
+        // a plugin returned a group
+        if ('rules' in query && 'condition' in query) {
+            return query;
+        }
+
+        // a plugin returned a rule
+        if ('id' in query && 'operator' in query && 'value' in query) {
+            return {
+                condition: this.settings.default_condition,
+                rules: [query]
+            };
+        }
+
+        var key = self.getMongoCondition(query);
+        if (!key) {
+            Utils.error('MongoParse', 'Invalid MongoDB query format');
+        }
+
+        return (function parse(data, topKey) {
+            var rules = data[topKey];
+            var parts = [];
+
+            rules.forEach(function(data) {
+                // allow plugins to manually parse or handle special cases
+                data = self.change('parseMongoNode', data);
+
+                // a plugin returned a group
+                if ('rules' in data && 'condition' in data) {
+                    parts.push(data);
+                    return;
+                }
+
+                // a plugin returned a rule
+                if ('id' in data && 'operator' in data && 'value' in data) {
+                    parts.push(data);
+                    return;
+                }
+
+                var key = self.getMongoCondition(data);
+                if (key) {
+                    parts.push(parse(data, key));
+                }
+                else {
+                    var field = Object.keys(data)[0];
+                    var value = data[field];
+
+                    var operator = self.getMongoOperator(value);
+                    if (operator === undefined) {
+                        Utils.error('MongoParse', 'Invalid MongoDB query format');
+                    }
+
+                    var mdbrl = self.settings.mongoRuleOperators[operator];
+                    if (mdbrl === undefined) {
+                        Utils.error('UndefinedMongoOperator', 'JSON Rule operation unknown for operator "{0}"', operator);
+                    }
+
+                    var opVal = mdbrl.call(self, value);
+
+                    var id = self.getMongoDBFieldID(field, value);
+
+                    /**
+                     * Modifies the rule generated from the MongoDB expression
+                     * @event changer:mongoToRule
+                     * @memberof module:plugins.MongoDbSupport
+                     * @param {object} rule
+                     * @param {object} expression
+                     * @returns {object}
+                     */
+                    var rule = self.change('mongoToRule', {
+                        id: id,
+                        field: field,
+                        operator: opVal.op,
+                        value: opVal.val
+                    }, data);
+
+                    parts.push(rule);
+                }
+            });
+
+            /**
+             * Modifies the group generated from the MongoDB expression
+             * @event changer:mongoToGroup
+             * @memberof module:plugins.MongoDbSupport
+             * @param {object} group
+             * @param {object} expression
+             * @returns {object}
+             */
+            return self.change('mongoToGroup', {
+                condition: topKey.replace('$', '').toUpperCase(),
+                rules: parts
+            }, data);
+        }(query, key));
+    },
+
+    /**
+     * Sets rules a from MongoDB query
+     * @see module:plugins.MongoDbSupport.getRulesFromMongo
+     */
+    setRulesFromMongo: function(query) {
+        this.setRules(this.getRulesFromMongo(query));
+    },
+
+    /**
+     * Returns a filter identifier from the MongoDB field.
+     * Automatically use the only one filter with a matching field, fires a changer otherwise.
+     * @param {string} field
+     * @param {*} value
+     * @fires module:plugins.MongoDbSupport:changer:getMongoDBFieldID
+     * @returns {string}
+     * @private
+     */
+    getMongoDBFieldID: function(field, value) {
+        var matchingFilters = this.filters.filter(function(filter) {
+            return filter.field === field;
+        });
+
+        var id;
+        if (matchingFilters.length === 1) {
+            id = matchingFilters[0].id;
+        }
+        else {
+            /**
+             * Returns a filter identifier from the MongoDB field
+             * @event changer:getMongoDBFieldID
+             * @memberof module:plugins.MongoDbSupport
+             * @param {string} field
+             * @param {*} value
+             * @returns {string}
+             */
+            id = this.change('getMongoDBFieldID', field, value);
+        }
+
+        return id;
+    },
+
+    /**
+     * Finds which operator is used in a MongoDB sub-object
+     * @param {*} data
+     * @returns {string|undefined}
+     * @private
+     */
+    getMongoOperator: function(data) {
+        if (data !== null && typeof data === 'object') {
+            if (data.$gte !== undefined && data.$lte !== undefined) {
+                return 'between';
+            }
+            if (data.$lt !== undefined && data.$gt !== undefined) {
+                return 'not_between';
+            }
+
+            var knownKeys = Object.keys(data).filter(function(key) {
+                return !!this.settings.mongoRuleOperators[key];
+            }.bind(this));
+
+            if (knownKeys.length === 1) {
+                return knownKeys[0];
+            }
+        }
+        else {
+            return '$eq';
+        }
+    },
+
+
+    /**
+     * Returns the key corresponding to "$or" or "$and"
+     * @param {object} data
+     * @returns {string|undefined}
+     * @private
+     */
+    getMongoCondition: function(data) {
+        var keys = Object.keys(data);
+
+        for (var i = 0, l = keys.length; i < l; i++) {
+            if (keys[i].toLowerCase() === '$or' || keys[i].toLowerCase() === '$and') {
+                return keys[i];
+            }
+        }
+    }
+});
+
+
+/**
+ * @class NotGroup
+ * @memberof module:plugins
+ * @description Adds a "Not" checkbox in front of group conditions.
+ * @param {object} [options]
+ * @param {string} [options.icon_checked='glyphicon glyphicon-checked']
+ * @param {string} [options.icon_unchecked='glyphicon glyphicon-unchecked']
+ */
+QueryBuilder.define('not-group', function(options) {
+    var self = this;
+
+    // Bind events
+    this.on('afterInit', function() {
+        self.$el.on('click.queryBuilder', '[data-not=group]', function() {
+            var $group = $(this).closest(QueryBuilder.selectors.group_container);
+            var group = self.getModel($group);
+            group.not = !group.not;
+        });
+
+        self.model.on('update', function(e, node, field) {
+            if (node instanceof Group && field === 'not') {
+                self.updateGroupNot(node);
+            }
+        });
+    });
+
+    // Init "not" property
+    this.on('afterAddGroup', function(e, group) {
+        group.__.not = false;
+    });
+
+    // Modify templates
+    if (!options.disable_template) {
+        this.on('getGroupTemplate.filter', function(h) {
+            var $h = $(h.value);
+            $h.find(QueryBuilder.selectors.condition_container).prepend(
+                '<button type="button" class="btn btn-xs btn-default" data-not="group">' +
+                '<i class="' + options.icon_unchecked + '"></i> ' + self.translate('NOT') +
+                '</button>'
+            );
+            h.value = $h.prop('outerHTML');
+        });
+    }
+
+    // Export "not" to JSON
+    this.on('groupToJson.filter', function(e, group) {
+        e.value.not = group.not;
+    });
+
+    // Read "not" from JSON
+    this.on('jsonToGroup.filter', function(e, json) {
+        e.value.not = !!json.not;
+    });
+
+    // Export "not" to SQL
+    this.on('groupToSQL.filter', function(e, group) {
+        if (group.not) {
+            e.value = 'NOT ( ' + e.value + ' )';
+        }
+    });
+
+    // Parse "NOT" function from sqlparser
+    this.on('parseSQLNode.filter', function(e) {
+        if (e.value.name && e.value.name.toUpperCase() == 'NOT') {
+            e.value = e.value.arguments.value[0];
+
+            // if the there is no sub-group, create one
+            if (['AND', 'OR'].indexOf(e.value.operation.toUpperCase()) === -1) {
+                e.value = new SQLParser.nodes.Op(
+                    self.settings.default_condition,
+                    e.value,
+                    null
+                );
+            }
+
+            e.value.not = true;
+        }
+    });
+
+    // Request to create sub-group if the "not" flag is set
+    this.on('sqlGroupsDistinct.filter', function(e, group, data, i) {
+        if (data.not && i > 0) {
+            e.value = true;
+        }
+    });
+
+    // Read "not" from parsed SQL
+    this.on('sqlToGroup.filter', function(e, data) {
+        e.value.not = !!data.not;
+    });
+
+    // Export "not" to Mongo
+    this.on('groupToMongo.filter', function(e, group) {
+        var key = '$' + group.condition.toLowerCase();
+        if (group.not && e.value[key]) {
+            e.value = { '$nor': [e.value] };
+        }
+    });
+
+    // Parse "$nor" operator from Mongo
+    this.on('parseMongoNode.filter', function(e) {
+        var keys = Object.keys(e.value);
+
+        if (keys[0] == '$nor') {
+            e.value = e.value[keys[0]][0];
+            e.value.not = true;
+        }
+    });
+
+    // Read "not" from parsed Mongo
+    this.on('mongoToGroup.filter', function(e, data) {
+        e.value.not = !!data.not;
+    });
+}, {
+    icon_unchecked: 'glyphicon glyphicon-unchecked',
+    icon_checked: 'glyphicon glyphicon-check',
+    disable_template: false
+});
+
+/**
+ * From {@link module:plugins.NotGroup}
+ * @name not
+ * @member {boolean}
+ * @memberof Group
+ * @instance
+ */
+Utils.defineModelProperties(Group, ['not']);
+
+QueryBuilder.selectors.group_not = QueryBuilder.selectors.group_header + ' [data-not=group]';
+
+QueryBuilder.extend(/** @lends module:plugins.NotGroup.prototype */ {
+    /**
+     * Performs actions when a group's not changes
+     * @param {Group} group
+     * @fires module:plugins.NotGroup.afterUpdateGroupNot
+     * @private
+     */
+    updateGroupNot: function(group) {
+        var options = this.plugins['not-group'];
+        group.$el.find('>' + QueryBuilder.selectors.group_not)
+            .toggleClass('active', group.not)
+            .find('i').attr('class', group.not ? options.icon_checked : options.icon_unchecked);
+
+        /**
+         * After the group's not flag has been modified
+         * @event afterUpdateGroupNot
+         * @memberof module:plugins.NotGroup
+         * @param {Group} group
+         */
+        this.trigger('afterUpdateGroupNot', group);
+
+        this.trigger('rulesChanged');
+    }
+});
+
+
+/**
+ * @class Sortable
+ * @memberof module:plugins
+ * @description Enables drag & drop sort of rules.
+ * @param {object} [options]
+ * @param {boolean} [options.inherit_no_drop=true]
+ * @param {boolean} [options.inherit_no_sortable=true]
+ * @param {string} [options.icon='glyphicon glyphicon-sort']
+ * @throws MissingLibraryError, ConfigError
+ */
+QueryBuilder.define('sortable', function(options) {
+    if (!('interact' in window)) {
+        Utils.error('MissingLibrary', 'interact.js is required to use "sortable" plugin. Get it here: http://interactjs.io');
+    }
+
+    if (options.default_no_sortable !== undefined) {
+        Utils.error(false, 'Config', 'Sortable plugin : "default_no_sortable" options is deprecated, use standard "default_rule_flags" and "default_group_flags" instead');
+        this.settings.default_rule_flags.no_sortable = this.settings.default_group_flags.no_sortable = options.default_no_sortable;
+    }
+
+    // recompute drop-zones during drag (when a rule is hidden)
+    interact.dynamicDrop(true);
+
+    // set move threshold to 10px
+    interact.pointerMoveTolerance(10);
+
+    var placeholder;
+    var ghost;
+    var src;
+    var moved;
+
+    // Init drag and drop
+    this.on('afterAddRule afterAddGroup', function(e, node) {
+        if (node == placeholder) {
+            return;
+        }
+
+        var self = e.builder;
+
+        // Inherit flags
+        if (options.inherit_no_sortable && node.parent && node.parent.flags.no_sortable) {
+            node.flags.no_sortable = true;
+        }
+        if (options.inherit_no_drop && node.parent && node.parent.flags.no_drop) {
+            node.flags.no_drop = true;
+        }
+
+        // Configure drag
+        if (!node.flags.no_sortable) {
+            interact(node.$el[0])
+                .draggable({
+                    allowFrom: QueryBuilder.selectors.drag_handle,
+                    onstart: function(event) {
+                        moved = false;
+
+                        // get model of dragged element
+                        src = self.getModel(event.target);
+
+                        // create ghost
+                        ghost = src.$el.clone()
+                            .appendTo(src.$el.parent())
+                            .width(src.$el.outerWidth())
+                            .addClass('dragging');
+
+                        // create drop placeholder
+                        var ph = $('<div class="rule-placeholder">&nbsp;</div>')
+                            .height(src.$el.outerHeight());
+
+                        placeholder = src.parent.addRule(ph, src.getPos());
+
+                        // hide dragged element
+                        src.$el.hide();
+                    },
+                    onmove: function(event) {
+                        // make the ghost follow the cursor
+                        ghost[0].style.top = event.clientY - 15 + 'px';
+                        ghost[0].style.left = event.clientX - 15 + 'px';
+                    },
+                    onend: function(event) {
+                        // starting from Interact 1.3.3, onend is called before ondrop
+                        if (event.dropzone) {
+                            moveSortableToTarget(src, $(event.relatedTarget), self);
+                            moved = true;
+                        }
+
+                        // remove ghost
+                        ghost.remove();
+                        ghost = undefined;
+
+                        // remove placeholder
+                        placeholder.drop();
+                        placeholder = undefined;
+
+                        // show element
+                        src.$el.css('display', '');
+
+                        /**
+                         * After a node has been moved with {@link module:plugins.Sortable}
+                         * @event afterMove
+                         * @memberof module:plugins.Sortable
+                         * @param {Node} node
+                         */
+                        self.trigger('afterMove', src);
+
+                        self.trigger('rulesChanged');
+                    }
+                });
+        }
+
+        if (!node.flags.no_drop) {
+            //  Configure drop on groups and rules
+            interact(node.$el[0])
+                .dropzone({
+                    accept: QueryBuilder.selectors.rule_and_group_containers,
+                    ondragenter: function(event) {
+                        moveSortableToTarget(placeholder, $(event.target), self);
+                    },
+                    ondrop: function(event) {
+                        if (!moved) {
+                            moveSortableToTarget(src, $(event.target), self);
+                        }
+                    }
+                });
+
+            // Configure drop on group headers
+            if (node instanceof Group) {
+                interact(node.$el.find(QueryBuilder.selectors.group_header)[0])
+                    .dropzone({
+                        accept: QueryBuilder.selectors.rule_and_group_containers,
+                        ondragenter: function(event) {
+                            moveSortableToTarget(placeholder, $(event.target), self);
+                        },
+                        ondrop: function(event) {
+                            if (!moved) {
+                                moveSortableToTarget(src, $(event.target), self);
+                            }
+                        }
+                    });
+            }
+        }
+    });
+
+    // Detach interactables
+    this.on('beforeDeleteRule beforeDeleteGroup', function(e, node) {
+        if (!e.isDefaultPrevented()) {
+            interact(node.$el[0]).unset();
+
+            if (node instanceof Group) {
+                interact(node.$el.find(QueryBuilder.selectors.group_header)[0]).unset();
+            }
+        }
+    });
+
+    // Remove drag handle from non-sortable items
+    this.on('afterApplyRuleFlags afterApplyGroupFlags', function(e, node) {
+        if (node.flags.no_sortable) {
+            node.$el.find('.drag-handle').remove();
+        }
+    });
+
+    // Modify templates
+    if (!options.disable_template) {
+        this.on('getGroupTemplate.filter', function(h, level) {
+            if (level > 1) {
+                var $h = $(h.value);
+                $h.find(QueryBuilder.selectors.condition_container).after('<div class="drag-handle"><i class="' + options.icon + '"></i></div>');
+                h.value = $h.prop('outerHTML');
+            }
+        });
+
+        this.on('getRuleTemplate.filter', function(h) {
+            var $h = $(h.value);
+            $h.find(QueryBuilder.selectors.rule_header).after('<div class="drag-handle"><i class="' + options.icon + '"></i></div>');
+            h.value = $h.prop('outerHTML');
+        });
+    }
+}, {
+    inherit_no_sortable: true,
+    inherit_no_drop: true,
+    icon: 'glyphicon glyphicon-sort',
+    disable_template: false
+});
+
+QueryBuilder.selectors.rule_and_group_containers = QueryBuilder.selectors.rule_container + ', ' + QueryBuilder.selectors.group_container;
+QueryBuilder.selectors.drag_handle = '.drag-handle';
+
+QueryBuilder.defaults({
+    default_rule_flags: {
+        no_sortable: false,
+        no_drop: false
+    },
+    default_group_flags: {
+        no_sortable: false,
+        no_drop: false
+    }
+});
+
+/**
+ * Moves an element (placeholder or actual object) depending on active target
+ * @memberof module:plugins.Sortable
+ * @param {Node} node
+ * @param {jQuery} target
+ * @param {QueryBuilder} [builder]
+ * @private
+ */
+function moveSortableToTarget(node, target, builder) {
+    var parent, method;
+    var Selectors = QueryBuilder.selectors;
+
+    // on rule
+    parent = target.closest(Selectors.rule_container);
+    if (parent.length) {
+        method = 'moveAfter';
+    }
+
+    // on group header
+    if (!method) {
+        parent = target.closest(Selectors.group_header);
+        if (parent.length) {
+            parent = target.closest(Selectors.group_container);
+            method = 'moveAtBegin';
+        }
+    }
+
+    // on group
+    if (!method) {
+        parent = target.closest(Selectors.group_container);
+        if (parent.length) {
+            method = 'moveAtEnd';
+        }
+    }
+
+    if (method) {
+        node[method](builder.getModel(parent));
+
+        // refresh radio value
+        if (builder && node instanceof Rule) {
+            builder.setRuleInputValue(node, node.value);
+        }
+    }
+}
+
+
+/**
+ * @class SqlSupport
+ * @memberof module:plugins
+ * @description Allows to export rules as a SQL WHERE statement as well as populating the builder from an SQL query.
+ * @param {object} [options]
+ * @param {boolean} [options.boolean_as_integer=true] - `true` to convert boolean values to integer in the SQL output
+ */
+QueryBuilder.define('sql-support', function(options) {
+
+}, {
+    boolean_as_integer: true
+});
+
+QueryBuilder.defaults({
+    // operators for internal -> SQL conversion
+    sqlOperators: {
+        equal: { op: '= ?' },
+        not_equal: { op: '!= ?' },
+        in: { op: 'IN(?)', sep: ', ' },
+        not_in: { op: 'NOT IN(?)', sep: ', ' },
+        less: { op: '< ?' },
+        less_or_equal: { op: '<= ?' },
+        greater: { op: '> ?' },
+        greater_or_equal: { op: '>= ?' },
+        between: { op: 'BETWEEN ?', sep: ' AND ' },
+        not_between: { op: 'NOT BETWEEN ?', sep: ' AND ' },
+        begins_with: { op: 'LIKE(?)', mod: '{0}%' },
+        not_begins_with: { op: 'NOT LIKE(?)', mod: '{0}%' },
+        contains: { op: 'LIKE(?)', mod: '%{0}%' },
+        not_contains: { op: 'NOT LIKE(?)', mod: '%{0}%' },
+        ends_with: { op: 'LIKE(?)', mod: '%{0}' },
+        not_ends_with: { op: 'NOT LIKE(?)', mod: '%{0}' },
+        is_empty: { op: '= \'\'' },
+        is_not_empty: { op: '!= \'\'' },
+        is_null: { op: 'IS NULL' },
+        is_not_null: { op: 'IS NOT NULL' }
+    },
+
+    // operators for SQL -> internal conversion
+    sqlRuleOperator: {
+        '=': function(v) {
+            return {
+                val: v,
+                op: v === '' ? 'is_empty' : 'equal'
+            };
+        },
+        '!=': function(v) {
+            return {
+                val: v,
+                op: v === '' ? 'is_not_empty' : 'not_equal'
+            };
+        },
+        'LIKE': function(v) {
+            if (v.slice(0, 1) == '%' && v.slice(-1) == '%') {
+                return {
+                    val: v.slice(1, -1),
+                    op: 'contains'
+                };
+            }
+            else if (v.slice(0, 1) == '%') {
+                return {
+                    val: v.slice(1),
+                    op: 'ends_with'
+                };
+            }
+            else if (v.slice(-1) == '%') {
+                return {
+                    val: v.slice(0, -1),
+                    op: 'begins_with'
+                };
+            }
+            else {
+                Utils.error('SQLParse', 'Invalid value for LIKE operator "{0}"', v);
+            }
+        },
+        'NOT LIKE': function(v) {
+            if (v.slice(0, 1) == '%' && v.slice(-1) == '%') {
+                return {
+                    val: v.slice(1, -1),
+                    op: 'not_contains'
+                };
+            }
+            else if (v.slice(0, 1) == '%') {
+                return {
+                    val: v.slice(1),
+                    op: 'not_ends_with'
+                };
+            }
+            else if (v.slice(-1) == '%') {
+                return {
+                    val: v.slice(0, -1),
+                    op: 'not_begins_with'
+                };
+            }
+            else {
+                Utils.error('SQLParse', 'Invalid value for NOT LIKE operator "{0}"', v);
+            }
+        },
+        'IN': function(v) {
+            return { val: v, op: 'in' };
+        },
+        'NOT IN': function(v) {
+            return { val: v, op: 'not_in' };
+        },
+        '<': function(v) {
+            return { val: v, op: 'less' };
+        },
+        '<=': function(v) {
+            return { val: v, op: 'less_or_equal' };
+        },
+        '>': function(v) {
+            return { val: v, op: 'greater' };
+        },
+        '>=': function(v) {
+            return { val: v, op: 'greater_or_equal' };
+        },
+        'BETWEEN': function(v) {
+            return { val: v, op: 'between' };
+        },
+        'NOT BETWEEN': function(v) {
+            return { val: v, op: 'not_between' };
+        },
+        'IS': function(v) {
+            if (v !== null) {
+                Utils.error('SQLParse', 'Invalid value for IS operator');
+            }
+            return { val: null, op: 'is_null' };
+        },
+        'IS NOT': function(v) {
+            if (v !== null) {
+                Utils.error('SQLParse', 'Invalid value for IS operator');
+            }
+            return { val: null, op: 'is_not_null' };
+        }
+    },
+
+    // statements for internal -> SQL conversion
+    sqlStatements: {
+        'question_mark': function() {
+            var params = [];
+            return {
+                add: function(rule, value) {
+                    params.push(value);
+                    return '?';
+                },
+                run: function() {
+                    return params;
+                }
+            };
+        },
+
+        'numbered': function(char) {
+            if (!char || char.length > 1) char = '$';
+            var index = 0;
+            var params = [];
+            return {
+                add: function(rule, value) {
+                    params.push(value);
+                    index++;
+                    return char + index;
+                },
+                run: function() {
+                    return params;
+                }
+            };
+        },
+
+        'named': function(char) {
+            if (!char || char.length > 1) char = ':';
+            var indexes = {};
+            var params = {};
+            return {
+                add: function(rule, value) {
+                    if (!indexes[rule.field]) indexes[rule.field] = 1;
+                    var key = rule.field + '_' + (indexes[rule.field]++);
+                    params[key] = value;
+                    return char + key;
+                },
+                run: function() {
+                    return params;
+                }
+            };
+        }
+    },
+
+    // statements for SQL -> internal conversion
+    sqlRuleStatement: {
+        'question_mark': function(values) {
+            var index = 0;
+            return {
+                parse: function(v) {
+                    return v == '?' ? values[index++] : v;
+                },
+                esc: function(sql) {
+                    return sql.replace(/\?/g, '\'?\'');
+                }
+            };
+        },
+
+        'numbered': function(values, char) {
+            if (!char || char.length > 1) char = '$';
+            var regex1 = new RegExp('^\\' + char + '[0-9]+$');
+            var regex2 = new RegExp('\\' + char + '([0-9]+)', 'g');
+            return {
+                parse: function(v) {
+                    return regex1.test(v) ? values[v.slice(1) - 1] : v;
+                },
+                esc: function(sql) {
+                    return sql.replace(regex2, '\'' + (char == '$' ? '$$' : char) + '$1\'');
+                }
+            };
+        },
+
+        'named': function(values, char) {
+            if (!char || char.length > 1) char = ':';
+            var regex1 = new RegExp('^\\' + char);
+            var regex2 = new RegExp('\\' + char + '(' + Object.keys(values).join('|') + ')', 'g');
+            return {
+                parse: function(v) {
+                    return regex1.test(v) ? values[v.slice(1)] : v;
+                },
+                esc: function(sql) {
+                    return sql.replace(regex2, '\'' + (char == '$' ? '$$' : char) + '$1\'');
+                }
+            };
+        }
+    }
+});
+
+/**
+ * @typedef {object} SqlQuery
+ * @memberof module:plugins.SqlSupport
+ * @property {string} sql
+ * @property {object} params
+ */
+
+QueryBuilder.extend(/** @lends module:plugins.SqlSupport.prototype */ {
+    /**
+     * Returns rules as a SQL query
+     * @param {boolean|string} [stmt] - use prepared statements: false, 'question_mark', 'numbered', 'numbered(@)', 'named', 'named(@)'
+     * @param {boolean} [nl=false] output with new lines
+     * @param {object} [data] - current rules by default
+     * @returns {module:plugins.SqlSupport.SqlQuery}
+     * @fires module:plugins.SqlSupport.changer:getSQLField
+     * @fires module:plugins.SqlSupport.changer:ruleToSQL
+     * @fires module:plugins.SqlSupport.changer:groupToSQL
+     * @throws UndefinedSQLConditionError, UndefinedSQLOperatorError
+     */
+    getSQL: function(stmt, nl, data) {
+        data = (data === undefined) ? this.getRules() : data;
+
+        if (!data) {
+            return null;
+        }
+
+        nl = !!nl ? '\n' : ' ';
+        var boolean_as_integer = this.getPluginOptions('sql-support', 'boolean_as_integer');
+
+        if (stmt === true) {
+            stmt = 'question_mark';
+        }
+        if (typeof stmt == 'string') {
+            var config = getStmtConfig(stmt);
+            stmt = this.settings.sqlStatements[config[1]](config[2]);
+        }
+
+        var self = this;
+
+        var sql = (function parse(group) {
+            if (!group.condition) {
+                group.condition = self.settings.default_condition;
+            }
+            if (['AND', 'OR'].indexOf(group.condition.toUpperCase()) === -1) {
+                Utils.error('UndefinedSQLCondition', 'Unable to build SQL query with condition "{0}"', group.condition);
+            }
+
+            if (!group.rules) {
+                return '';
+            }
+
+            var parts = [];
+
+            group.rules.forEach(function(rule) {
+                if (rule.rules && rule.rules.length > 0) {
+                    parts.push('(' + nl + parse(rule) + nl + ')' + nl);
+                }
+                else {
+                    var sql = self.settings.sqlOperators[rule.operator];
+                    var ope = self.getOperatorByType(rule.operator);
+                    var value = '';
+
+                    if (sql === undefined) {
+                        Utils.error('UndefinedSQLOperator', 'Unknown SQL operation for operator "{0}"', rule.operator);
+                    }
+
+                    if (ope.nb_inputs !== 0) {
+                        if (!(rule.value instanceof Array)) {
+                            rule.value = [rule.value];
+                        }
+
+                        rule.value.forEach(function(v, i) {
+                            if (i > 0) {
+                                value += sql.sep;
+                            }
+
+                            if (rule.type == 'boolean' && boolean_as_integer) {
+                                v = v ? 1 : 0;
+                            }
+                            else if (!stmt && rule.type !== 'integer' && rule.type !== 'double' && rule.type !== 'boolean') {
+                                v = Utils.escapeString(v);
+                            }
+
+                            if (sql.mod) {
+                                v = Utils.fmt(sql.mod, v);
+                            }
+
+                            if (stmt) {
+                                value += stmt.add(rule, v);
+                            }
+                            else {
+                                if (typeof v == 'string') {
+                                    v = '\'' + v + '\'';
+                                }
+
+                                value += v;
+                            }
+                        });
+                    }
+
+                    var sqlFn = function(v) {
+                        return sql.op.replace('?', function() {
+                            return v;
+                        });
+                    };
+
+                    /**
+                     * Modifies the SQL field used by a rule
+                     * @event changer:getSQLField
+                     * @memberof module:plugins.SqlSupport
+                     * @param {string} field
+                     * @param {Rule} rule
+                     * @returns {string}
+                     */
+                    var field = self.change('getSQLField', rule.field, rule);
+
+                    var ruleExpression = field + ' ' + sqlFn(value);
+
+                    /**
+                     * Modifies the SQL generated for a rule
+                     * @event changer:ruleToSQL
+                     * @memberof module:plugins.SqlSupport
+                     * @param {string} expression
+                     * @param {Rule} rule
+                     * @param {*} value
+                     * @param {function} valueWrapper - function that takes the value and adds the operator
+                     * @returns {string}
+                     */
+                    parts.push(self.change('ruleToSQL', ruleExpression, rule, value, sqlFn));
+                }
+            });
+
+            var groupExpression = parts.join(' ' + group.condition + nl);
+
+            /**
+             * Modifies the SQL generated for a group
+             * @event changer:groupToSQL
+             * @memberof module:plugins.SqlSupport
+             * @param {string} expression
+             * @param {Group} group
+             * @returns {string}
+             */
+            return self.change('groupToSQL', groupExpression, group);
+        }(data));
+
+        if (stmt) {
+            return {
+                sql: sql,
+                params: stmt.run()
+            };
+        }
+        else {
+            return {
+                sql: sql
+            };
+        }
+    },
+
+    /**
+     * Convert a SQL query to rules
+     * @param {string|module:plugins.SqlSupport.SqlQuery} query
+     * @param {boolean|string} stmt
+     * @returns {object}
+     * @fires module:plugins.SqlSupport.changer:parseSQLNode
+     * @fires module:plugins.SqlSupport.changer:getSQLFieldID
+     * @fires module:plugins.SqlSupport.changer:sqlToRule
+     * @fires module:plugins.SqlSupport.changer:sqlToGroup
+     * @throws MissingLibraryError, SQLParseError, UndefinedSQLOperatorError
+     */
+    getRulesFromSQL: function(query, stmt) {
+        if (!('SQLParser' in window)) {
+            Utils.error('MissingLibrary', 'SQLParser is required to parse SQL queries. Get it here https://github.com/mistic100/sql-parser');
+        }
+
+        var self = this;
+
+        if (typeof query == 'string') {
+            query = { sql: query };
+        }
+
+        if (stmt === true) stmt = 'question_mark';
+        if (typeof stmt == 'string') {
+            var config = getStmtConfig(stmt);
+            stmt = this.settings.sqlRuleStatement[config[1]](query.params, config[2]);
+        }
+
+        if (stmt) {
+            query.sql = stmt.esc(query.sql);
+        }
+
+        if (query.sql.toUpperCase().indexOf('SELECT') !== 0) {
+            query.sql = 'SELECT * FROM table WHERE ' + query.sql;
+        }
+
+        var parsed = SQLParser.parse(query.sql);
+
+        if (!parsed.where) {
+            Utils.error('SQLParse', 'No WHERE clause found');
+        }
+
+        /**
+         * Custom parsing of an AST node generated by SQLParser, you can return a sub-part of the tree, or a well formed group or rule JSON
+         * @event changer:parseSQLNode
+         * @memberof module:plugins.SqlSupport
+         * @param {object} AST node
+         * @returns {object} tree, rule or group
+         */
+        var data = self.change('parseSQLNode', parsed.where.conditions);
+
+        // a plugin returned a group
+        if ('rules' in data && 'condition' in data) {
+            return data;
+        }
+
+        // a plugin returned a rule
+        if ('id' in data && 'operator' in data && 'value' in data) {
+            return {
+                condition: this.settings.default_condition,
+                rules: [data]
+            };
+        }
+
+        // create root group
+        var out = self.change('sqlToGroup', {
+            condition: this.settings.default_condition,
+            rules: []
+        }, data);
+
+        // keep track of current group
+        var curr = out;
+
+        (function flatten(data, i) {
+            if (data === null) {
+                return;
+            }
+
+            // allow plugins to manually parse or handle special cases
+            data = self.change('parseSQLNode', data);
+
+            // a plugin returned a group
+            if ('rules' in data && 'condition' in data) {
+                curr.rules.push(data);
+                return;
+            }
+
+            // a plugin returned a rule
+            if ('id' in data && 'operator' in data && 'value' in data) {
+                curr.rules.push(data);
+                return;
+            }
+
+            // data must be a SQL parser node
+            if (!('left' in data) || !('right' in data) || !('operation' in data)) {
+                Utils.error('SQLParse', 'Unable to parse WHERE clause');
+            }
+
+            // it's a node
+            if (['AND', 'OR'].indexOf(data.operation.toUpperCase()) !== -1) {
+                // create a sub-group if the condition is not the same and it's not the first level
+
+                /**
+                 * Given an existing group and an AST node, determines if a sub-group must be created
+                 * @event changer:sqlGroupsDistinct
+                 * @memberof module:plugins.SqlSupport
+                 * @param {boolean} create - true by default if the group condition is different
+                 * @param {object} group
+                 * @param {object} AST
+                 * @param {int} current group level
+                 * @returns {boolean}
+                 */
+                var createGroup = self.change('sqlGroupsDistinct', i > 0 && curr.condition != data.operation.toUpperCase(), curr, data, i);
+
+                if (createGroup) {
+                    /**
+                     * Modifies the group generated from the SQL expression (this is called before the group is filled with rules)
+                     * @event changer:sqlToGroup
+                     * @memberof module:plugins.SqlSupport
+                     * @param {object} group
+                     * @param {object} AST
+                     * @returns {object}
+                     */
+                    var group = self.change('sqlToGroup', {
+                        condition: self.settings.default_condition,
+                        rules: []
+                    }, data);
+
+                    curr.rules.push(group);
+                    curr = group;
+                }
+
+                curr.condition = data.operation.toUpperCase();
+                i++;
+
+                // some magic !
+                var next = curr;
+                flatten(data.left, i);
+
+                curr = next;
+                flatten(data.right, i);
+            }
+            // it's a leaf
+            else {
+                if ($.isPlainObject(data.right.value)) {
+                    Utils.error('SQLParse', 'Value format not supported for {0}.', data.left.value);
+                }
+
+                // convert array
+                var value;
+                if ($.isArray(data.right.value)) {
+                    value = data.right.value.map(function(v) {
+                        return v.value;
+                    });
+                }
+                else {
+                    value = data.right.value;
+                }
+
+                // get actual values
+                if (stmt) {
+                    if ($.isArray(value)) {
+                        value = value.map(stmt.parse);
+                    }
+                    else {
+                        value = stmt.parse(value);
+                    }
+                }
+
+                // convert operator
+                var operator = data.operation.toUpperCase();
+                if (operator == '<>') {
+                    operator = '!=';
+                }
+
+                var sqlrl = self.settings.sqlRuleOperator[operator];
+                if (sqlrl === undefined) {
+                    Utils.error('UndefinedSQLOperator', 'Invalid SQL operation "{0}".', data.operation);
+                }
+
+                var opVal = sqlrl.call(this, value, data.operation);
+
+                // find field name
+                var field;
+                if ('values' in data.left) {
+                    field = data.left.values.join('.');
+                }
+                else if ('value' in data.left) {
+                    field = data.left.value;
+                }
+                else {
+                    Utils.error('SQLParse', 'Cannot find field name in {0}', JSON.stringify(data.left));
+                }
+
+                var id = self.getSQLFieldID(field, value);
+
+                /**
+                 * Modifies the rule generated from the SQL expression
+                 * @event changer:sqlToRule
+                 * @memberof module:plugins.SqlSupport
+                 * @param {object} rule
+                 * @param {object} AST
+                 * @returns {object}
+                 */
+                var rule = self.change('sqlToRule', {
+                    id: id,
+                    field: field,
+                    operator: opVal.op,
+                    value: opVal.val
+                }, data);
+
+                curr.rules.push(rule);
+            }
+        }(data, 0));
+
+        return out;
+    },
+
+    /**
+     * Sets the builder's rules from a SQL query
+     * @see module:plugins.SqlSupport.getRulesFromSQL
+     */
+    setRulesFromSQL: function(query, stmt) {
+        this.setRules(this.getRulesFromSQL(query, stmt));
+    },
+
+    /**
+     * Returns a filter identifier from the SQL field.
+     * Automatically use the only one filter with a matching field, fires a changer otherwise.
+     * @param {string} field
+     * @param {*} value
+     * @fires module:plugins.SqlSupport:changer:getSQLFieldID
+     * @returns {string}
+     * @private
+     */
+    getSQLFieldID: function(field, value) {
+        var matchingFilters = this.filters.filter(function(filter) {
+            return filter.field.toLowerCase() === field.toLowerCase();
+        });
+
+        var id;
+        if (matchingFilters.length === 1) {
+            id = matchingFilters[0].id;
+        }
+        else {
+            /**
+             * Returns a filter identifier from the SQL field
+             * @event changer:getSQLFieldID
+             * @memberof module:plugins.SqlSupport
+             * @param {string} field
+             * @param {*} value
+             * @returns {string}
+             */
+            id = this.change('getSQLFieldID', field, value);
+        }
+
+        return id;
+    }
+});
+
+/**
+ * Parses the statement configuration
+ * @memberof module:plugins.SqlSupport
+ * @param {string} stmt
+ * @returns {Array} null, mode, option
+ * @private
+ */
+function getStmtConfig(stmt) {
+    var config = stmt.match(/(question_mark|numbered|named)(?:\((.)\))?/);
+    if (!config) config = [null, 'question_mark', undefined];
+    return config;
+}
+
+
+/**
+ * @class UniqueFilter
+ * @memberof module:plugins
+ * @description Allows to define some filters as "unique": ie which can be used for only one rule, globally or in the same group.
+ */
+QueryBuilder.define('unique-filter', function() {
+    this.status.used_filters = {};
+
+    this.on('afterUpdateRuleFilter', this.updateDisabledFilters);
+    this.on('afterDeleteRule', this.updateDisabledFilters);
+    this.on('afterCreateRuleFilters', this.applyDisabledFilters);
+    this.on('afterReset', this.clearDisabledFilters);
+    this.on('afterClear', this.clearDisabledFilters);
+
+    // Ensure that the default filter is not already used if unique
+    this.on('getDefaultFilter.filter', function(e, model) {
+        var self = e.builder;
+
+        self.updateDisabledFilters();
+
+        if (e.value.id in self.status.used_filters) {
+            var found = self.filters.some(function(filter) {
+                if (!(filter.id in self.status.used_filters) || self.status.used_filters[filter.id].length > 0 && self.status.used_filters[filter.id].indexOf(model.parent) === -1) {
+                    e.value = filter;
+                    return true;
+                }
+            });
+
+            if (!found) {
+                Utils.error(false, 'UniqueFilter', 'No more non-unique filters available');
+                e.value = undefined;
+            }
+        }
+    });
+});
+
+QueryBuilder.extend(/** @lends module:plugins.UniqueFilter.prototype */ {
+    /**
+     * Updates the list of used filters
+     * @param {$.Event} [e]
+     * @private
+     */
+    updateDisabledFilters: function(e) {
+        var self = e ? e.builder : this;
+
+        self.status.used_filters = {};
+
+        if (!self.model) {
+            return;
+        }
+
+        // get used filters
+        (function walk(group) {
+            group.each(function(rule) {
+                if (rule.filter && rule.filter.unique) {
+                    if (!self.status.used_filters[rule.filter.id]) {
+                        self.status.used_filters[rule.filter.id] = [];
+                    }
+                    if (rule.filter.unique == 'group') {
+                        self.status.used_filters[rule.filter.id].push(rule.parent);
+                    }
+                }
+            }, function(group) {
+                walk(group);
+            });
+        }(self.model.root));
+
+        self.applyDisabledFilters(e);
+    },
+
+    /**
+     * Clear the list of used filters
+     * @param {$.Event} [e]
+     * @private
+     */
+    clearDisabledFilters: function(e) {
+        var self = e ? e.builder : this;
+
+        self.status.used_filters = {};
+
+        self.applyDisabledFilters(e);
+    },
+
+    /**
+     * Disabled filters depending on the list of used ones
+     * @param {$.Event} [e]
+     * @private
+     */
+    applyDisabledFilters: function(e) {
+        var self = e ? e.builder : this;
+
+        // re-enable everything
+        self.$el.find(QueryBuilder.selectors.filter_container + ' option').prop('disabled', false);
+
+        // disable some
+        $.each(self.status.used_filters, function(filterId, groups) {
+            if (groups.length === 0) {
+                self.$el.find(QueryBuilder.selectors.filter_container + ' option[value="' + filterId + '"]:not(:selected)').prop('disabled', true);
+            }
+            else {
+                groups.forEach(function(group) {
+                    group.each(function(rule) {
+                        rule.$el.find(QueryBuilder.selectors.filter_container + ' option[value="' + filterId + '"]:not(:selected)').prop('disabled', true);
+                    });
+                });
+            }
+        });
+
+        // update Selectpicker
+        if (self.settings.plugins && self.settings.plugins['bt-selectpicker']) {
+            self.$el.find(QueryBuilder.selectors.rule_filter).selectpicker('render');
+        }
+    }
+});
+
+
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Locale: English (en)
+ * Author: Damien "Mistic" Sorel, http://www.strangeplanet.fr
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+QueryBuilder.regional['en'] = {
+  "__locale": "English (en)",
+  "__author": "Damien \"Mistic\" Sorel, http://www.strangeplanet.fr",
+  "add_rule": "Add rule",
+  "add_group": "Add group",
+  "delete_rule": "Delete",
+  "delete_group": "Delete",
+  "conditions": {
+    "AND": "AND",
+    "OR": "OR"
+  },
+  "operators": {
+    "equal": "equal",
+    "not_equal": "not equal",
+    "in": "in",
+    "not_in": "not in",
+    "less": "less",
+    "less_or_equal": "less or equal",
+    "greater": "greater",
+    "greater_or_equal": "greater or equal",
+    "between": "between",
+    "not_between": "not between",
+    "begins_with": "begins with",
+    "not_begins_with": "doesn't begin with",
+    "contains": "contains",
+    "not_contains": "doesn't contain",
+    "ends_with": "ends with",
+    "not_ends_with": "doesn't end with",
+    "is_empty": "is empty",
+    "is_not_empty": "is not empty",
+    "is_null": "is null",
+    "is_not_null": "is not null"
+  },
+  "errors": {
+    "no_filter": "No filter selected",
+    "empty_group": "The group is empty",
+    "radio_empty": "No value selected",
+    "checkbox_empty": "No value selected",
+    "select_empty": "No value selected",
+    "string_empty": "Empty value",
+    "string_exceed_min_length": "Must contain at least {0} characters",
+    "string_exceed_max_length": "Must not contain more than {0} characters",
+    "string_invalid_format": "Invalid format ({0})",
+    "number_nan": "Not a number",
+    "number_not_integer": "Not an integer",
+    "number_not_double": "Not a real number",
+    "number_exceed_min": "Must be greater than {0}",
+    "number_exceed_max": "Must be lower than {0}",
+    "number_wrong_step": "Must be a multiple of {0}",
+    "number_between_invalid": "Invalid values, {0} is greater than {1}",
+    "datetime_empty": "Empty value",
+    "datetime_invalid": "Invalid date format ({0})",
+    "datetime_exceed_min": "Must be after {0}",
+    "datetime_exceed_max": "Must be before {0}",
+    "datetime_between_invalid": "Invalid values, {0} is greater than {1}",
+    "boolean_not_valid": "Not a boolean",
+    "operator_not_multiple": "Operator \"{1}\" cannot accept multiple values"
+  },
+  "invert": "Invert",
+  "NOT": "NOT"
+};
+
+QueryBuilder.defaults({ lang_code: 'en' });
+return QueryBuilder;
+
+}));
diff --git a/assets/js/query-builder.standalone.min.js b/assets/js/query-builder.standalone.min.js
new file mode 100644
index 00000000..2fab5e13
--- /dev/null
+++ b/assets/js/query-builder.standalone.min.js
@@ -0,0 +1,7 @@
+/*!
+ * jQuery QueryBuilder 2.5.2
+ * Copyright 2014-2018 Damien "Mistic" Sorel (http://www.strangeplanet.fr)
+ * Licensed under MIT (https://opensource.org/licenses/MIT)
+ */
+
+!function(e,t){"function"==typeof define&&define.amd?define("jQuery.extendext",["jquery"],t):"object"==typeof module&&module.exports?module.exports=t(require("jquery")):t(e.jQuery)}(this,function($){"use strict";$.extendext=function(){var e,t,r,n,i,o,l=arguments[0]||{},s=1,a=arguments.length,u=!1,p="default";for("boolean"==typeof l&&(u=l,l=arguments[s++]||{}),"string"==typeof l&&("concat"!==(p=l.toLowerCase())&&"replace"!==p&&"extend"!==p&&(p="default"),l=arguments[s++]||{}),"object"==typeof l||$.isFunction(l)||(l={}),s===a&&(l=this,s--);s<a;s++)if(null!==(e=arguments[s]))if($.isArray(e)&&"default"!==p)switch(o=l&&$.isArray(l)?l:[],p){case"concat":l=o.concat($.extend(u,[],e));break;case"replace":l=$.extend(u,[],e);break;case"extend":e.forEach(function(e,t){if("object"==typeof e){var r=$.isArray(e)?[]:{};o[t]=$.extendext(u,p,o[t]||r,e)}else-1===o.indexOf(e)&&o.push(e)}),l=o}else for(t in 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this.$el.append(i),this.model.root=new a(null,i),this.model.root.model=this.model,this.model.root.data=t,this.model.root.flags=$.extend({},this.settings.default_group_flags,r),this.model.root.condition=this.settings.default_condition,this.trigger("afterAddGroup",this.model.root),e&&this.addRule(this.model.root),this.model.root},c.prototype.addGroup=function(e,t,r,n){t=void 0===t||!0===t;var i=e.level+1;if(this.trigger("beforeAddGroup",e,t,i).isDefaultPrevented())return null;var o=this.nextGroupId(),l=$(this.getGroupTemplate(o,i)),s=e.addGroup(l);return s.data=r,s.flags=$.extend({},this.settings.default_group_flags,n),s.condition=this.settings.default_condition,this.trigger("afterAddGroup",s),this.trigger("rulesChanged"),t&&this.addRule(s),s},c.prototype.deleteGroup=function(e){if(e.isRoot())return!1;if(this.trigger("beforeDeleteGroup",e).isDefaultPrevented())return!1;var t=!0;return e.each("reverse",function(e){t&=this.deleteRule(e)},function(e){t&=this.deleteGroup(e)},this),t&&(e.drop(),this.trigger("afterDeleteGroup"),this.trigger("rulesChanged")),t},c.prototype.updateGroupCondition=function(t,e){t.$el.find(">"+c.selectors.group_condition).each(function(){var e=$(this);e.prop("checked",e.val()===t.condition),e.parent().toggleClass("active",e.val()===t.condition)}),this.trigger("afterUpdateGroupCondition",t,e),this.trigger("rulesChanged")},c.prototype.refreshGroupsConditions=function(){!function t(e){(!e.flags||e.flags&&!e.flags.condition_readonly)&&e.$el.find(">"+c.selectors.group_condition).prop("disabled",e.rules.length<=1).parent().toggleClass("disabled",e.rules.length<=1),e.each(null,function(e){t(e)},this)}(this.model.root)},c.prototype.addRule=function(e,t,r){if(this.trigger("beforeAddRule",e).isDefaultPrevented())return null;var n=this.nextRuleId(),i=$(this.getRuleTemplate(n)),o=e.addRule(i);return o.data=t,o.flags=$.extend({},this.settings.default_rule_flags,r),this.trigger("afterAddRule",o),this.trigger("rulesChanged"),this.createRuleFilters(o),!this.settings.default_filter&&this.settings.display_empty_filter||(o.filter=this.change("getDefaultFilter",this.getFilterById(this.settings.default_filter||this.filters[0].id),o)),o},c.prototype.deleteRule=function(e){return!e.flags.no_delete&&(!this.trigger("beforeDeleteRule",e).isDefaultPrevented()&&(e.drop(),this.trigger("afterDeleteRule"),this.trigger("rulesChanged"),!0))},c.prototype.createRuleFilters=function(e){var t=this.change("getRuleFilters",this.filters,e),r=$(this.getRuleFilterSelect(e,t));e.$el.find(c.selectors.filter_container).html(r),this.trigger("afterCreateRuleFilters",e),this.applyRuleFlags(e)},c.prototype.createRuleOperators=function(e){var t=e.$el.find(c.selectors.operator_container).empty();if(e.filter){var r=this.getOperators(e.filter),n=$(this.getRuleOperatorSelect(e,r));t.html(n),e.filter.default_operator?e.__.operator=this.getOperatorByType(e.filter.default_operator):e.__.operator=r[0],e.$el.find(c.selectors.rule_operator).val(e.operator.type),this.trigger("afterCreateRuleOperators",e,r),this.applyRuleFlags(e)}},c.prototype.createRuleInput=function(e){var t=e.$el.find(c.selectors.value_container).empty();if(e.__.value=void 0,e.filter&&e.operator&&0!==e.operator.nb_inputs){for(var r=this,n=$(),i=e.filter,o=0;o<e.operator.nb_inputs;o++){var l=$(this.getRuleInput(e,o));0<o&&t.append(this.settings.inputs_separator),t.append(l),n=n.add(l)}t.css("display",""),n.on("change "+(i.input_event||""),function(){e._updating_input||(e._updating_value=!0,e.value=r.getRuleInputValue(e),e._updating_value=!1)}),i.plugin&&n[i.plugin](i.plugin_config||{}),this.trigger("afterCreateRuleInput",e),void 0!==i.default_value?e.value=i.default_value:(e._updating_value=!0,e.value=r.getRuleInputValue(e),e._updating_value=!1),this.applyRuleFlags(e)}},c.prototype.updateRuleFilter=function(e,t){this.createRuleOperators(e),this.createRuleInput(e),e.$el.find(c.selectors.rule_filter).val(e.filter?e.filter.id:"-1"),t&&e.filter&&t.id!==e.filter.id&&(e.data=void 0),this.trigger("afterUpdateRuleFilter",e,t),this.trigger("rulesChanged")},c.prototype.updateRuleOperator=function(e,t){var r=e.$el.find(c.selectors.value_container);e.operator&&0!==e.operator.nb_inputs?(r.css("display",""),!r.is(":empty")&&t&&e.operator.nb_inputs===t.nb_inputs&&e.operator.optgroup===t.optgroup||this.createRuleInput(e)):(r.hide(),e.__.value=void 0),e.operator&&(e.$el.find(c.selectors.rule_operator).val(e.operator.type),e.__.value=this.getRuleInputValue(e)),this.trigger("afterUpdateRuleOperator",e,t),this.trigger("rulesChanged")},c.prototype.updateRuleValue=function(e,t){e._updating_value||this.setRuleInputValue(e,e.value),this.trigger("afterUpdateRuleValue",e,t),this.trigger("rulesChanged")},c.prototype.applyRuleFlags=function(e){var t=e.flags,r=c.selectors;e.$el.find(r.rule_filter).prop("disabled",t.filter_readonly),e.$el.find(r.rule_operator).prop("disabled",t.operator_readonly),e.$el.find(r.rule_value).prop("disabled",t.value_readonly),t.no_delete&&e.$el.find(r.delete_rule).remove(),this.trigger("afterApplyRuleFlags",e)},c.prototype.applyGroupFlags=function(e){var t=e.flags,r=c.selectors;e.$el.find(">"+r.group_condition).prop("disabled",t.condition_readonly).parent().toggleClass("readonly",t.condition_readonly),t.no_add_rule&&e.$el.find(r.add_rule).remove(),t.no_add_group&&e.$el.find(r.add_group).remove(),t.no_delete&&e.$el.find(r.delete_group).remove(),this.trigger("afterApplyGroupFlags",e)},c.prototype.clearErrors=function(e){(e=e||this.model.root)&&(e.error=null,e instanceof a&&e.each(function(e){e.error=null},function(e){this.clearErrors(e)},this))},c.prototype.updateError=function(e){if(this.settings.display_errors)if(null===e.error)e.$el.removeClass("has-error");else{var t=this.translate("errors",e.error[0]);t=h.fmt(t,e.error.slice(1)),t=this.change("displayError",t,e.error,e),e.$el.addClass("has-error").find(c.selectors.error_container).eq(0).attr("title",t)}},c.prototype.triggerValidationError=function(e,t,r){$.isArray(t)||(t=[t]),this.trigger("validationError",e,t,r).isDefaultPrevented()||(e.error=t)},c.prototype.destroy=function(){this.trigger("beforeDestroy"),this.status.generated_id&&this.$el.removeAttr("id"),this.clear(),this.model=null,this.$el.off(".queryBuilder").removeClass("query-builder").removeData("queryBuilder"),delete this.$el[0].queryBuilder},c.prototype.reset=function(){this.trigger("beforeReset").isDefaultPrevented()||(this.status.group_id=1,this.status.rule_id=0,this.model.root.empty(),this.model.root.data=void 0,this.model.root.flags=$.extend({},this.settings.default_group_flags),this.model.root.condition=this.settings.default_condition,this.addRule(this.model.root),this.trigger("afterReset"),this.trigger("rulesChanged"))},c.prototype.clear=function(){this.trigger("beforeClear").isDefaultPrevented()||(this.status.group_id=0,this.status.rule_id=0,this.model.root&&(this.model.root.drop(),this.model.root=null),this.trigger("afterClear"),this.trigger("rulesChanged"))},c.prototype.setOptions=function(e){$.each(e,function(e,t){-1!==c.modifiable_options.indexOf(e)&&(this.settings[e]=t)}.bind(this))},c.prototype.getModel=function(e){return e?e instanceof i?e:$(e).data("queryBuilderModel"):this.model.root},c.prototype.validate=function(o){o=$.extend({skip_empty:!1},o),this.clearErrors();var l=this,e=function r(e){var n=0,i=0;return e.each(function(e){if(e.filter||!o.skip_empty){if(!e.filter)return l.triggerValidationError(e,"no_filter",null),void i++;if(!e.operator)return l.triggerValidationError(e,"no_operator",null),void i++;if(0!==e.operator.nb_inputs){var t=l.validateValue(e,e.value);if(!0!==t)return l.triggerValidationError(e,t,e.value),void i++}n++}},function(e){var t=r(e);!0===t?n++:!1===t&&i++}),!(0<i)&&(0===n&&!e.isRoot()&&o.skip_empty?null:!!(0!==n||l.settings.allow_empty&&e.isRoot())||(l.triggerValidationError(e,"empty_group",null),!1))}(this.model.root);return this.change("validate",e)},c.prototype.getRules=function(o){o=$.extend({get_flags:!1,allow_invalid:!1,skip_empty:!1},o);var e=this.validate(o);if(!e&&!o.allow_invalid)return null;var l=this,t=function r(e){var i={condition:e.condition,rules:[]};if(e.data&&(i.data=$.extendext(!0,"replace",{},e.data)),o.get_flags){var t=l.getGroupFlags(e.flags,"all"===o.get_flags);$.isEmptyObject(t)||(i.flags=t)}return e.each(function(e){if(e.filter||!o.skip_empty){var t=null;e.operator&&0===e.operator.nb_inputs||(t=e.value);var r={id:e.filter?e.filter.id:null,field:e.filter?e.filter.field:null,type:e.filter?e.filter.type:null,input:e.filter?e.filter.input:null,operator:e.operator?e.operator.type:null,value:t};if((e.filter&&e.filter.data||e.data)&&(r.data=$.extendext(!0,"replace",{},e.filter.data,e.data)),o.get_flags){var n=l.getRuleFlags(e.flags,"all"===o.get_flags);$.isEmptyObject(n)||(r.flags=n)}i.rules.push(l.change("ruleToJson",r,e))}},function(e){var t=r(e);0===t.rules.length&&o.skip_empty||i.rules.push(t)},this),l.change("groupToJson",i,e)}(this.model.root);return t.valid=e,this.change("getRules",t)},c.prototype.setRules=function(e,i){i=$.extend({allow_invalid:!1},i),$.isArray(e)&&(e={condition:this.settings.default_condition,rules:e}),e&&e.rules&&(0!==e.rules.length||this.settings.allow_empty)||h.error("RulesParse","Incorrect data object passed"),this.clear(),this.setRoot(!1,e.data,this.parseGroupFlags(e)),e=this.change("setRules",e,i);var o=this;!function r(e,n){null!==n&&(void 0===e.condition?e.condition=o.settings.default_condition:-1==o.settings.conditions.indexOf(e.condition)&&(h.error(!i.allow_invalid,"UndefinedCondition",'Invalid condition "{0}"',e.condition),e.condition=o.settings.default_condition),n.condition=e.condition,e.rules.forEach(function(e){var t;if(void 0!==e.rules)if(-1!==o.settings.allow_groups&&o.settings.allow_groups<n.level)h.error(!i.allow_invalid,"RulesParse","No more than {0} groups are allowed",o.settings.allow_groups),o.reset();else{if(null===(t=o.addGroup(n,!1,e.data,o.parseGroupFlags(e))))return;r(e,t)}else{if(e.empty||(void 0===e.id&&(h.error(!i.allow_invalid,"RulesParse","Missing rule field id"),e.empty=!0),void 0===e.operator&&(e.operator="equal")),null===(t=o.addRule(n,e.data,o.parseRuleFlags(e))))return;e.empty||(t.filter=o.getFilterById(e.id,!i.allow_invalid)),t.filter&&(t.operator=o.getOperatorByType(e.operator,!i.allow_invalid),t.operator||(t.operator=o.getOperators(t.filter)[0])),t.operator&&0!==t.operator.nb_inputs&&(void 0!==e.value?t.value=e.value:void 0!==t.filter.default_value&&(t.value=t.filter.default_value)),o.change("jsonToRule",t,e)!=t&&h.error("RulesParse","Plugin tried to change rule reference")}}),o.change("jsonToGroup",n,e)!=n&&h.error("RulesParse","Plugin tried to change group reference"))}(e,this.model.root),this.trigger("afterSetRules")},c.prototype.validateValue=function(e,t){var r=e.filter.validation||{},n=!0;return n=r.callback?r.callback.call(this,t,e):this._validateValue(e,t),this.change("validateValue",n,t,e)},c.prototype._validateValue=function(e,t){var r,n,i=e.filter,o=e.operator,l=i.validation||{},s=!0;1===e.operator.nb_inputs&&(t=[t]);for(var a=0;a<o.nb_inputs;a++){if(!o.multiple&&$.isArray(t[a])&&1<t[a].length){s=["operator_not_multiple",o.type,this.translate("operators",o.type)];break}switch(i.input){case"radio":if(void 0===t[a]||0===t[a].length){l.allow_empty_value||(s=["radio_empty"]);break}break;case"checkbox":if(void 0===t[a]||0===t[a].length){l.allow_empty_value||(s=["checkbox_empty"]);break}break;case"select":if(void 0===t[a]||0===t[a].length||i.placeholder&&t[a]==i.placeholder_value){l.allow_empty_value||(s=["select_empty"]);break}break;default:n=$.isArray(t[a])?t[a]:[t[a]];for(var u=0;u<n.length;u++){switch(c.types[i.type]){case"string":if(void 0===n[u]||0===n[u].length){l.allow_empty_value||(s=["string_empty"]);break}if(void 0!==l.min&&n[u].length<parseInt(l.min)){s=[this.getValidationMessage(l,"min","string_exceed_min_length"),l.min];break}if(void 0!==l.max&&n[u].length>parseInt(l.max)){s=[this.getValidationMessage(l,"max","string_exceed_max_length"),l.max];break}if(l.format&&("string"==typeof l.format&&(l.format=new RegExp(l.format)),!l.format.test(n[u]))){s=[this.getValidationMessage(l,"format","string_invalid_format"),l.format];break}break;case"number":if(void 0===n[u]||0===n[u].length){l.allow_empty_value||(s=["number_nan"]);break}if(isNaN(n[u])){s=["number_nan"];break}if("integer"==i.type){if(parseInt(n[u])!=n[u]){s=["number_not_integer"];break}}else if(parseFloat(n[u])!=n[u]){s=["number_not_double"];break}if(void 0!==l.min&&n[u]<parseFloat(l.min)){s=[this.getValidationMessage(l,"min","number_exceed_min"),l.min];break}if(void 0!==l.max&&n[u]>parseFloat(l.max)){s=[this.getValidationMessage(l,"max","number_exceed_max"),l.max];break}if(void 0!==l.step&&"any"!==l.step){var p=(n[u]/l.step).toPrecision(14);if(parseInt(p)!=p){s=[this.getValidationMessage(l,"step","number_wrong_step"),l.step];break}}break;case"datetime":if(void 0===n[u]||0===n[u].length){l.allow_empty_value||(s=["datetime_empty"]);break}if(l.format){"moment"in window||h.error("MissingLibrary","MomentJS is required for Date/Time validation. Get it here http://momentjs.com");var d=moment(n[u],l.format);if(!d.isValid()){s=[this.getValidationMessage(l,"format","datetime_invalid"),l.format];break}if(l.min&&d<moment(l.min,l.format)){s=[this.getValidationMessage(l,"min","datetime_exceed_min"),l.min];break}if(l.max&&d>moment(l.max,l.format)){s=[this.getValidationMessage(l,"max","datetime_exceed_max"),l.max];break}}break;case"boolean":if(void 0===n[u]||0===n[u].length){l.allow_empty_value||(s=["boolean_not_valid"]);break}if("true"!==(r=(""+n[u]).trim().toLowerCase())&&"false"!==r&&"1"!==r&&"0"!==r&&1!==n[u]&&0!==n[u]){s=["boolean_not_valid"];break}}if(!0!==s)break}}if(!0!==s)break}if(("between"===e.operator.type||"not_between"===e.operator.type)&&2===t.length)switch(c.types[i.type]){case"number":t[0]>t[1]&&(s=["number_between_invalid",t[0],t[1]]);break;case"datetime":l.format&&("moment"in window||h.error("MissingLibrary","MomentJS is required for Date/Time validation. Get it here http://momentjs.com"),moment(t[0],l.format).isAfter(moment(t[1],l.format))&&(s=["datetime_between_invalid",t[0],t[1]]))}return s},c.prototype.nextGroupId=function(){return this.status.id+"_group_"+this.status.group_id++},c.prototype.nextRuleId=function(){return this.status.id+"_rule_"+this.status.rule_id++},c.prototype.getOperators=function(r){"string"==typeof r&&(r=this.getFilterById(r));for(var e=[],t=0,n=this.operators.length;t<n;t++){if(r.operators){if(-1==r.operators.indexOf(this.operators[t].type))continue}else if(-1==this.operators[t].apply_to.indexOf(c.types[r.type]))continue;e.push(this.operators[t])}return r.operators&&e.sort(function(e,t){return r.operators.indexOf(e.type)-r.operators.indexOf(t.type)}),this.change("getOperators",e,r)},c.prototype.getFilterById=function(e,t){if("-1"==e)return null;for(var r=0,n=this.filters.length;r<n;r++)if(this.filters[r].id==e)return this.filters[r];return h.error(!1!==t,"UndefinedFilter",'Undefined filter "{0}"',e),null},c.prototype.getOperatorByType=function(e,t){if("-1"==e)return null;for(var r=0,n=this.operators.length;r<n;r++)if(this.operators[r].type==e)return this.operators[r];return h.error(!1!==t,"UndefinedOperator",'Undefined operator "{0}"',e),null},c.prototype.getRuleInputValue=function(e){var t=e.filter,r=e.operator,n=[];if(t.valueGetter)n=t.valueGetter.call(this,e);else{for(var i=e.$el.find(c.selectors.value_container),o=0;o<r.nb_inputs;o++){var l,s=h.escapeElementId(e.id+"_value_"+o);switch(t.input){case"radio":n.push(i.find("[name="+s+"]:checked").val());break;case"checkbox":l=[],i.find("[name="+s+"]:checked").each(function(){l.push($(this).val())}),n.push(l);break;case"select":t.multiple?(l=[],i.find("[name="+s+"] option:selected").each(function(){l.push($(this).val())}),n.push(l)):n.push(i.find("[name="+s+"] option:selected").val());break;default:n.push(i.find("[name="+s+"]").val())}}n=n.map(function(e){return r.multiple&&t.value_separator&&"string"==typeof e&&(e=e.split(t.value_separator)),$.isArray(e)?e.map(function(e){return h.changeType(e,t.type)}):h.changeType(e,t.type)}),1===r.nb_inputs&&(n=n[0]),t.valueParser&&(n=t.valueParser.call(this,e,n))}return this.change("getRuleValue",n,e)},c.prototype.setRuleInputValue=function(e,t){var r=e.filter,n=e.operator;if(r&&n){if(e._updating_input=!0,r.valueSetter)r.valueSetter.call(this,e,t);else{var i=e.$el.find(c.selectors.value_container);1==n.nb_inputs&&(t=[t]);for(var o=0;o<n.nb_inputs;o++){var l=h.escapeElementId(e.id+"_value_"+o);switch(r.input){case"radio":i.find("[name="+l+'][value="'+t[o]+'"]').prop("checked",!0).trigger("change");break;case"checkbox":$.isArray(t[o])||(t[o]=[t[o]]),t[o].forEach(function(e){i.find("[name="+l+'][value="'+e+'"]').prop("checked",!0).trigger("change")});break;default:n.multiple&&r.value_separator&&$.isArray(t[o])&&(t[o]=t[o].join(r.value_separator)),i.find("[name="+l+"]").val(t[o]).trigger("change")}}}e._updating_input=!1}},c.prototype.parseRuleFlags=function(e){var t=$.extend({},this.settings.default_rule_flags);return e.readonly&&$.extend(t,{filter_readonly:!0,operator_readonly:!0,value_readonly:!0,no_delete:!0}),e.flags&&$.extend(t,e.flags),this.change("parseRuleFlags",t,e)},c.prototype.getRuleFlags=function(r,e){if(e)return $.extend({},r);var n={};return $.each(this.settings.default_rule_flags,function(e,t){r[e]!==t&&(n[e]=r[e])}),n},c.prototype.parseGroupFlags=function(e){var t=$.extend({},this.settings.default_group_flags);return e.readonly&&$.extend(t,{condition_readonly:!0,no_add_rule:!0,no_add_group:!0,no_delete:!0}),e.flags&&$.extend(t,e.flags),this.change("parseGroupFlags",t,e)},c.prototype.getGroupFlags=function(r,e){if(e)return $.extend({},r);var n={};return $.each(this.settings.default_group_flags,function(e,t){r[e]!==t&&(n[e]=r[e])}),n},c.prototype.translate=function(e,t){var r;return t||(t=e,e=void 0),r="object"==typeof t?t[this.settings.lang_code]||t.en:(e?this.lang[e]:this.lang)[t]||t,this.change("translate",r,t,e)},c.prototype.getValidationMessage=function(e,t,r){return e.messages&&e.messages[t]||r},c.templates.group='<div id="{{= it.group_id }}" class="rules-group-container">   <div class="rules-group-header">     <div class="btn-group pull-right group-actions">       <button type="button" class="btn btn-xs btn-success" data-add="rule">         <i class="{{= it.icons.add_rule }}"></i> {{= it.translate("add_rule") }}       </button>       {{? it.settings.allow_groups===-1 || it.settings.allow_groups>=it.level }}         <button type="button" class="btn btn-xs btn-success" data-add="group">           <i class="{{= it.icons.add_group }}"></i> {{= it.translate("add_group") }}         </button>       {{?}}       {{? it.level>1 }}         <button type="button" class="btn btn-xs btn-danger" data-delete="group">           <i class="{{= it.icons.remove_group }}"></i> {{= it.translate("delete_group") }}         </button>       {{?}}     </div>     <div class="btn-group group-conditions">       {{~ it.conditions: condition }}         <label class="btn btn-xs btn-primary">           <input type="radio" name="{{= it.group_id }}_cond" value="{{= condition }}"> {{= it.translate("conditions", condition) }}         </label>       {{~}}     </div>     {{? it.settings.display_errors }}       <div class="error-container"><i class="{{= it.icons.error }}"></i></div>     {{?}}   </div>   <div class=rules-group-body>     <div class=rules-list></div>   </div> </div>',c.templates.rule='<div id="{{= it.rule_id }}" class="rule-container">   <div class="rule-header">     <div class="btn-group pull-right rule-actions">       <button type="button" class="btn btn-xs btn-danger" data-delete="rule">         <i class="{{= it.icons.remove_rule }}"></i> {{= it.translate("delete_rule") }}       </button>     </div>   </div>   {{? it.settings.display_errors }}     <div class="error-container"><i class="{{= it.icons.error }}"></i></div>   {{?}}   <div class="rule-filter-container"></div>   <div class="rule-operator-container"></div>   <div class="rule-value-container"></div> </div>',c.templates.filterSelect='{{ var optgroup = null; }} <select class="form-control" name="{{= it.rule.id }}_filter">   {{? it.settings.display_empty_filter }}     <option value="-1">{{= it.settings.select_placeholder }}</option>   {{?}}   {{~ it.filters: filter }}     {{? optgroup !== filter.optgroup }}       {{? optgroup !== null }}</optgroup>{{?}}       {{? (optgroup = filter.optgroup) !== null }}         <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}">       {{?}}     {{?}}     <option value="{{= filter.id }}" {{? filter.icon}}data-icon="{{= filter.icon}}"{{?}}>{{= it.translate(filter.label) }}</option>   {{~}}   {{? optgroup !== null }}</optgroup>{{?}} </select>',c.templates.operatorSelect='{{? it.operators.length === 1 }} <span> {{= it.translate("operators", it.operators[0].type) }} </span> {{?}} {{ var optgroup = null; }} <select class="form-control {{? it.operators.length === 1 }}hide{{?}}" name="{{= it.rule.id }}_operator">   {{~ it.operators: operator }}     {{? optgroup !== operator.optgroup }}       {{? optgroup !== null }}</optgroup>{{?}}       {{? (optgroup = operator.optgroup) !== null }}         <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}">       {{?}}     {{?}}     <option value="{{= operator.type }}" {{? operator.icon}}data-icon="{{= operator.icon}}"{{?}}>{{= it.translate("operators", operator.type) }}</option>   {{~}}   {{? optgroup !== null }}</optgroup>{{?}} </select>',c.templates.ruleValueSelect='{{ var optgroup = null; }} <select class="form-control" name="{{= it.name }}" {{? it.rule.filter.multiple }}multiple{{?}}>   {{? it.rule.filter.placeholder }}     <option value="{{= it.rule.filter.placeholder_value }}" disabled selected>{{= it.rule.filter.placeholder }}</option>   {{?}}   {{~ it.rule.filter.values: entry }}     {{? optgroup !== entry.optgroup }}       {{? optgroup !== null }}</optgroup>{{?}}       {{? (optgroup = entry.optgroup) !== null }}         <optgroup label="{{= it.translate(it.settings.optgroups[optgroup]) }}">       {{?}}     {{?}}     <option value="{{= entry.value }}">{{= entry.label }}</option>   {{~}}   {{? optgroup !== null }}</optgroup>{{?}} </select>',c.prototype.getGroupTemplate=function(e,t){var r=this.templates.group({builder:this,group_id:e,level:t,conditions:this.settings.conditions,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getGroupTemplate",r,t)},c.prototype.getRuleTemplate=function(e){var t=this.templates.rule({builder:this,rule_id:e,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getRuleTemplate",t)},c.prototype.getRuleFilterSelect=function(e,t){var r=this.templates.filterSelect({builder:this,rule:e,filters:t,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getRuleFilterSelect",r,e,t)},c.prototype.getRuleOperatorSelect=function(e,t){var r=this.templates.operatorSelect({builder:this,rule:e,operators:t,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getRuleOperatorSelect",r,e,t)},c.prototype.getRuleValueSelect=function(e,t){var r=this.templates.ruleValueSelect({builder:this,name:e,rule:t,icons:this.icons,settings:this.settings,translate:this.translate.bind(this)});return this.change("getRuleValueSelect",r,e,t)},c.prototype.getRuleInput=function(e,t){var r=e.filter,n=e.filter.validation||{},i=e.id+"_value_"+t,o=r.vertical?" class=block":"",l="";if("function"==typeof r.input)l=r.input.call(this,e,i);else switch(r.input){case"radio":case"checkbox":h.iterateOptions(r.values,function(e,t){l+="<label"+o+'><input type="'+r.input+'" name="'+i+'" value="'+e+'"> '+t+"</label> "});break;case"select":l=this.getRuleValueSelect(i,e);break;case"textarea":l+='<textarea class="form-control" name="'+i+'"',r.size&&(l+=' cols="'+r.size+'"'),r.rows&&(l+=' rows="'+r.rows+'"'),void 0!==n.min&&(l+=' minlength="'+n.min+'"'),void 0!==n.max&&(l+=' maxlength="'+n.max+'"'),r.placeholder&&(l+=' placeholder="'+r.placeholder+'"'),l+="></textarea>";break;case"number":l+='<input class="form-control" type="number" name="'+i+'"',void 0!==n.step&&(l+=' step="'+n.step+'"'),void 0!==n.min&&(l+=' min="'+n.min+'"'),void 0!==n.max&&(l+=' max="'+n.max+'"'),r.placeholder&&(l+=' placeholder="'+r.placeholder+'"'),r.size&&(l+=' size="'+r.size+'"'),l+=">";break;default:l+='<input class="form-control" type="text" name="'+i+'"',r.placeholder&&(l+=' placeholder="'+r.placeholder+'"'),"string"===r.type&&void 0!==n.min&&(l+=' minlength="'+n.min+'"'),"string"===r.type&&void 0!==n.max&&(l+=' maxlength="'+n.max+'"'),r.size&&(l+=' size="'+r.size+'"'),l+=">"}return this.change("getRuleInput",l,e,i)};var h={};function n(){this.root=null,this.$=$(this)}(c.utils=h).iterateOptions=function(e,r){e&&($.isArray(e)?e.forEach(function(e){$.isPlainObject(e)?"value"in e?r(e.value,e.label||e.value,e.optgroup):$.each(e,function(e,t){return r(e,t),!1}):r(e,e)}):$.each(e,function(e,t){r(e,t)}))},h.fmt=function(e,r){return Array.isArray(r)||(r=Array.prototype.slice.call(arguments,1)),e.replace(/{([0-9]+)}/g,function(e,t){return r[parseInt(t)]})},h.error=function(){var e=0,t="boolean"!=typeof arguments[e]||arguments[e++],r=arguments[e++],n=arguments[e++],i=Array.isArray(arguments[e])?arguments[e]:Array.prototype.slice.call(arguments,e);if(t){var o=new Error(h.fmt(n,i));throw o.name=r+"Error",o.args=i,o}console.error(r+"Error: "+h.fmt(n,i))},h.changeType=function(e,t){if(""!==e&&void 0!==e)switch(t){case"integer":return"string"!=typeof e||/^-?\d+$/.test(e)?parseInt(e):e;case"double":return"string"!=typeof e||/^-?\d+\.?\d*$/.test(e)?parseFloat(e):e;case"boolean":return"string"!=typeof e||/^(0|1|true|false){1}$/i.test(e)?!0===e||1===e||"true"===e.toLowerCase()||"1"===e:e;default:return e}},h.escapeString=function(e){return"string"!=typeof e?e:e.replace(/[\0\n\r\b\\\'\"]/g,function(e){switch(e){case"\0":return"\\0";case"\n":return"\\n";case"\r":return"\\r";case"\b":return"\\b";default:return"\\"+e}}).replace(/\t/g,"\\t").replace(/\x1a/g,"\\Z")},h.escapeRegExp=function(e){return e.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g,"\\$&")},h.escapeElementId=function(e){return e?e.replace(/(\\)?([:.\[\],])/g,function(e,t,r){return t?e:"\\"+r}):e},h.groupSort=function(e,r){var n=[],i=[];return e.forEach(function(e){var t;e[r]?-1==(t=n.lastIndexOf(e[r]))?t=n.length:t++:t=n.length,n.splice(t,0,e[r]),i.splice(t,0,e)}),i},h.defineModelProperties=function(e,t){t.forEach(function(r){Object.defineProperty(e.prototype,r,{enumerable:!0,get:function(){return this.__[r]},set:function(e){var t=null!==this.__[r]&&"object"==typeof this.__[r]?$.extend({},this.__[r]):this.__[r];this.__[r]=e,null!==this.model&&this.model.trigger("update",this,r,e,t)}})})},$.extend(n.prototype,{trigger:function(e){var t=new $.Event(e);return this.$.triggerHandler(t,Array.prototype.slice.call(arguments,1)),t},on:function(){return this.$.on.apply(this.$,Array.prototype.slice.call(arguments)),this},off:function(){return this.$.off.apply(this.$,Array.prototype.slice.call(arguments)),this},once:function(){return this.$.one.apply(this.$,Array.prototype.slice.call(arguments)),this}});var i=function(e,t){if(!(this instanceof i))return new i(e,t);Object.defineProperty(this,"__",{value:{}}),t.data("queryBuilderModel",this),this.__.level=1,this.__.error=null,this.__.flags={},this.__.data=void 0,this.$el=t,this.id=t[0].id,this.model=null,this.parent=e};h.defineModelProperties(i,["level","error","data","flags"]),Object.defineProperty(i.prototype,"parent",{enumerable:!0,get:function(){return this.__.parent},set:function(e){this.__.parent=e,this.level=null===e?1:e.level+1,this.model=null===e?null:e.model}}),i.prototype.isRoot=function(){return 1===this.level},i.prototype.getPos=function(){return this.isRoot()?-1:this.parent.getNodePos(this)},i.prototype.drop=function(){var e=this.model;this.parent&&this.parent.removeNode(this),this.$el.removeData("queryBuilderModel"),null!==e&&e.trigger("drop",this)},i.prototype.moveAfter=function(e){this.isRoot()||this.move(e.parent,e.getPos()+1)},i.prototype.moveAtBegin=function(e){this.isRoot()||(void 0===e&&(e=this.parent),this.move(e,0))},i.prototype.moveAtEnd=function(e){this.isRoot()||(void 0===e&&(e=this.parent),this.move(e,0===e.length()?0:e.length()-1))},i.prototype.move=function(e,t){this.isRoot()||("number"==typeof e&&(t=e,e=this.parent),this.parent.removeNode(this),e.insertNode(this,t,!1),null!==this.model&&this.model.trigger("move",this,e,t))};var a=function(e,t){if(!(this instanceof a))return new a(e,t);i.call(this,e,t),this.rules=[],this.__.condition=null};a.prototype=Object.create(i.prototype),a.prototype.constructor=a,h.defineModelProperties(a,["condition"]),a.prototype.empty=function(){this.each("reverse",function(e){e.drop()},function(e){e.drop()})},a.prototype.drop=function(){this.empty(),i.prototype.drop.call(this)},a.prototype.length=function(){return this.rules.length},a.prototype.insertNode=function(e,t,r){return void 0===t&&(t=this.length()),this.rules.splice(t,0,e),e.parent=this,r&&null!==this.model&&this.model.trigger("add",this,e,t),e},a.prototype.addGroup=function(e,t){return this.insertNode(new a(this,e),t,!0)},a.prototype.addRule=function(e,t){return this.insertNode(new l(this,e),t,!0)},a.prototype.removeNode=function(e){var t=this.getNodePos(e);-1!==t&&(e.parent=null,this.rules.splice(t,1))},a.prototype.getNodePos=function(e){return this.rules.indexOf(e)},a.prototype.each=function(e,t,r,n){"boolean"!=typeof e&&"string"!=typeof e&&(n=r,r=t,t=e,e=!1),n=void 0===n?null:n;for(var i=e?this.rules.length-1:0,o=e?0:this.rules.length-1,l=e?-1:1,s=!1;(e?o<=i:i<=o)&&(this.rules[i]instanceof a?r&&(s=!1===r.call(n,this.rules[i])):t&&(s=!1===t.call(n,this.rules[i])),!s);i+=l);return!s},a.prototype.contains=function(t,e){return-1!==this.getNodePos(t)||!!e&&!this.each(function(){return!0},function(e){return!e.contains(t,!0)})};var l=function(e,t){if(!(this instanceof l))return new l(e,t);i.call(this,e,t),this._updating_value=!1,this._updating_input=!1,this.__.filter=null,this.__.operator=null,this.__.value=void 0};function u(e,t,r){var n,i,o=c.selectors;(n=t.closest(o.rule_container)).length&&(i="moveAfter"),i||(n=t.closest(o.group_header)).length&&(n=t.closest(o.group_container),i="moveAtBegin"),i||(n=t.closest(o.group_container)).length&&(i="moveAtEnd"),i&&(e[i](r.getModel(n)),r&&e instanceof l&&r.setRuleInputValue(e,e.value))}function o(e){var t=e.match(/(question_mark|numbered|named)(?:\((.)\))?/);return t||(t=[null,"question_mark",void 0]),t}return l.prototype=Object.create(i.prototype),l.prototype.constructor=l,h.defineModelProperties(l,["filter","operator","value"]),l.prototype.isRoot=function(){return!1},c.Group=a,c.Rule=l,$.fn.queryBuilder=function(e){0===this.length&&h.error("Config","No target defined"),1<this.length&&h.error("Config","Unable to initialize on multiple target");var t=this.data("queryBuilder"),r="object"==typeof e&&e||{};if(!t&&"destroy"==e)return this;if(!t){var n=new c(this,r);this.data("queryBuilder",n),n.init(r.rules)}return"string"==typeof e?t[e].apply(t,Array.prototype.slice.call(arguments,1)):this},$.fn.queryBuilder.constructor=c,$.fn.queryBuilder.defaults=c.defaults,$.fn.queryBuilder.extend=c.extend,$.fn.queryBuilder.define=c.define,$.fn.queryBuilder.regional=c.regional,c.define("bt-checkbox",function(u){"glyphicons"==u.font&&this.$el.addClass("bt-checkbox-glyphicons"),this.on("getRuleInput.filter",function(i,e,o){var l=e.filter;if(("radio"===l.input||"checkbox"===l.input)&&!l.plugin){i.value="",l.colors||(l.colors={}),l.color&&(l.colors._def_=l.color);var s=l.vertical?' style="display:block"':"",a=0;h.iterateOptions(l.values,function(e,t){var r=l.colors[e]||l.colors._def_||u.color,n=o+"_"+a++;i.value+="<div"+s+' class="'+l.input+" "+l.input+"-"+r+'">   <input type="'+l.input+'" name="'+o+'" id="'+n+'" value="'+e+'">   <label for="'+n+'">'+t+"</label> </div>"})}})},{font:"glyphicons",color:"default"}),c.define("bt-selectpicker",function(r){$.fn.selectpicker&&$.fn.selectpicker.Constructor||h.error("MissingLibrary",'Bootstrap Select is required to use "bt-selectpicker" plugin. Get it here: http://silviomoreto.github.io/bootstrap-select');var n=c.selectors;this.on("afterCreateRuleFilters",function(e,t){t.$el.find(n.rule_filter).removeClass("form-control").selectpicker(r)}),this.on("afterCreateRuleOperators",function(e,t){t.$el.find(n.rule_operator).removeClass("form-control").selectpicker(r)}),this.on("afterUpdateRuleFilter",function(e,t){t.$el.find(n.rule_filter).selectpicker("render")}),this.on("afterUpdateRuleOperator",function(e,t){t.$el.find(n.rule_operator).selectpicker("render")}),this.on("beforeDeleteRule",function(e,t){t.$el.find(n.rule_filter).selectpicker("destroy"),t.$el.find(n.rule_operator).selectpicker("destroy")})},{container:"body",style:"btn-inverse btn-xs",width:"auto",showIcon:!1}),c.define("bt-tooltip-errors",function(n){$.fn.tooltip&&$.fn.tooltip.Constructor&&$.fn.tooltip.Constructor.prototype.fixTitle||h.error("MissingLibrary",'Bootstrap Tooltip is required to use "bt-tooltip-errors" plugin. Get it here: http://getbootstrap.com');var i=this;this.on("getRuleTemplate.filter getGroupTemplate.filter",function(e){var t=$(e.value);t.find(c.selectors.error_container).attr("data-toggle","tooltip"),e.value=t.prop("outerHTML")}),this.model.on("update",function(e,t,r){"error"==r&&i.settings.display_errors&&t.$el.find(c.selectors.error_container).eq(0).tooltip(n).tooltip("hide").tooltip("fixTitle")})},{placement:"right"}),c.extend({setFilters:function(e,t){var r=this;void 0===t&&(t=e,e=!1),t=this.checkFilters(t);var n=(t=this.change("setFilters",t)).map(function(e){return e.id});if(e||function e(t){t.each(function(e){e.filter&&-1===n.indexOf(e.filter.id)&&h.error("ChangeFilter",'A rule is using filter "{0}"',e.filter.id)},e)}(this.model.root),this.filters=t,function e(t){t.each(!0,function(e){e.filter&&-1===n.indexOf(e.filter.id)?(e.drop(),r.trigger("rulesChanged")):(r.createRuleFilters(e),e.$el.find(c.selectors.rule_filter).val(e.filter?e.filter.id:"-1"),r.trigger("afterUpdateRuleFilter",e))},e)}(this.model.root),this.settings.plugins&&(this.settings.plugins["unique-filter"]&&this.updateDisabledFilters(),this.settings.plugins["bt-selectpicker"]&&this.$el.find(c.selectors.rule_filter).selectpicker("render")),this.settings.default_filter)try{this.getFilterById(this.settings.default_filter)}catch(e){this.settings.default_filter=null}this.trigger("afterSetFilters",t)},addFilter:function(e,r){void 0===r||"#end"==r?r=this.filters.length:"#start"==r&&(r=0),$.isArray(e)||(e=[e]);var t=$.extend(!0,[],this.filters);parseInt(r)==r?Array.prototype.splice.apply(t,[r,0].concat(e)):this.filters.some(function(e,t){if(e.id==r)return r=t+1,!0})?Array.prototype.splice.apply(t,[r,0].concat(e)):Array.prototype.push.apply(t,e),this.setFilters(t)},removeFilter:function(t,e){var r=$.extend(!0,[],this.filters);"string"==typeof t&&(t=[t]),r=r.filter(function(e){return-1===t.indexOf(e.id)}),this.setFilters(e,r)}}),c.define("chosen-selectpicker",function(r){$.fn.chosen||h.error("MissingLibrary",'chosen is required to use "chosen-selectpicker" plugin. Get it here: https://github.com/harvesthq/chosen'),this.settings.plugins["bt-selectpicker"]&&h.error("Conflict","bt-selectpicker is already selected as the dropdown plugin. Please remove chosen-selectpicker from the plugin list");var n=c.selectors;this.on("afterCreateRuleFilters",function(e,t){t.$el.find(n.rule_filter).removeClass("form-control").chosen(r)}),this.on("afterCreateRuleOperators",function(e,t){t.$el.find(n.rule_operator).removeClass("form-control").chosen(r)}),this.on("afterUpdateRuleFilter",function(e,t){t.$el.find(n.rule_filter).trigger("chosen:updated")}),this.on("afterUpdateRuleOperator",function(e,t){t.$el.find(n.rule_operator).trigger("chosen:updated")}),this.on("beforeDeleteRule",function(e,t){t.$el.find(n.rule_filter).chosen("destroy"),t.$el.find(n.rule_operator).chosen("destroy")})}),c.define("filter-description",function(i){"inline"===i.mode?this.on("afterUpdateRuleFilter afterUpdateRuleOperator",function(e,t){var r=t.$el.find("p.filter-description"),n=e.builder.getFilterDescription(t.filter,t);n?(0===r.length?(r=$('<p class="filter-description"></p>')).appendTo(t.$el):r.css("display",""),r.html('<i class="'+i.icon+'"></i> '+n)):r.hide()}):"popover"===i.mode?($.fn.popover&&$.fn.popover.Constructor&&$.fn.popover.Constructor.prototype.fixTitle||h.error("MissingLibrary",'Bootstrap Popover is required to use "filter-description" plugin. Get it here: http://getbootstrap.com'),this.on("afterUpdateRuleFilter afterUpdateRuleOperator",function(e,t){var r=t.$el.find("button.filter-description"),n=e.builder.getFilterDescription(t.filter,t);n?(0===r.length?((r=$('<button type="button" class="btn btn-xs btn-info filter-description" data-toggle="popover"><i class="'+i.icon+'"></i></button>')).prependTo(t.$el.find(c.selectors.rule_actions)),r.popover({placement:"left",container:"body",html:!0}),r.on("mouseout",function(){r.popover("hide")})):r.css("display",""),r.data("bs.popover").options.content=n,r.attr("aria-describedby")&&r.popover("show")):(r.hide(),r.data("bs.popover")&&r.popover("hide"))})):"bootbox"===i.mode&&("bootbox"in window||h.error("MissingLibrary",'Bootbox is required to use "filter-description" plugin. Get it here: http://bootboxjs.com'),this.on("afterUpdateRuleFilter afterUpdateRuleOperator",function(e,t){var r=t.$el.find("button.filter-description"),n=e.builder.getFilterDescription(t.filter,t);n?(0===r.length?((r=$('<button type="button" class="btn btn-xs btn-info filter-description" data-toggle="bootbox"><i class="'+i.icon+'"></i></button>')).prependTo(t.$el.find(c.selectors.rule_actions)),r.on("click",function(){bootbox.alert(r.data("description"))})):r.css("display",""),r.data("description",n)):r.hide()}))},{icon:"glyphicon glyphicon-info-sign",mode:"popover"}),c.extend({getFilterDescription:function(e,t){return e?"function"==typeof e.description?e.description.call(this,t):e.description:void 0}}),c.define("invert",function(r){var n=this,i=c.selectors;this.on("afterInit",function(){n.$el.on("click.queryBuilder","[data-invert=group]",function(){var e=$(this).closest(i.group_container);n.invert(n.getModel(e),r)}),r.display_rules_button&&r.invert_rules&&n.$el.on("click.queryBuilder","[data-invert=rule]",function(){var e=$(this).closest(i.rule_container);n.invert(n.getModel(e),r)})}),r.disable_template||(this.on("getGroupTemplate.filter",function(e){var t=$(e.value);t.find(i.condition_container).after('<button type="button" class="btn btn-xs btn-default" data-invert="group"><i class="'+r.icon+'"></i> '+n.translate("invert")+"</button>"),e.value=t.prop("outerHTML")}),r.display_rules_button&&r.invert_rules&&this.on("getRuleTemplate.filter",function(e){var t=$(e.value);t.find(i.rule_actions).prepend('<button type="button" class="btn btn-xs btn-default" data-invert="rule"><i class="'+r.icon+'"></i> '+n.translate("invert")+"</button>"),e.value=t.prop("outerHTML")}))},{icon:"glyphicon glyphicon-random",recursive:!0,invert_rules:!0,display_rules_button:!1,silent_fail:!1,disable_template:!1}),c.defaults({operatorOpposites:{equal:"not_equal",not_equal:"equal",in:"not_in",not_in:"in",less:"greater_or_equal",less_or_equal:"greater",greater:"less_or_equal",greater_or_equal:"less",between:"not_between",not_between:"between",begins_with:"not_begins_with",not_begins_with:"begins_with",contains:"not_contains",not_contains:"contains",ends_with:"not_ends_with",not_ends_with:"ends_with",is_empty:"is_not_empty",is_not_empty:"is_empty",is_null:"is_not_null",is_not_null:"is_null"},conditionOpposites:{AND:"OR",OR:"AND"}}),c.extend({invert:function(e,t){if(!(e instanceof i)){if(!this.model.root)return;t=e,e=this.model.root}if("object"!=typeof t&&(t={}),void 0===t.recursive&&(t.recursive=!0),void 0===t.invert_rules&&(t.invert_rules=!0),void 0===t.silent_fail&&(t.silent_fail=!1),void 0===t.trigger&&(t.trigger=!0),e instanceof a){if(this.settings.conditionOpposites[e.condition]?e.condition=this.settings.conditionOpposites[e.condition]:t.silent_fail||h.error("InvertCondition",'Unknown inverse of condition "{0}"',e.condition),t.recursive){var r=$.extend({},t,{trigger:!1});e.each(function(e){t.invert_rules&&this.invert(e,r)},function(e){this.invert(e,r)},this)}}else if(e instanceof l&&e.operator&&!e.filter.no_invert)if(this.settings.operatorOpposites[e.operator.type]){var n=this.settings.operatorOpposites[e.operator.type];e.filter.operators&&-1==e.filter.operators.indexOf(n)||(e.operator=this.getOperatorByType(n))}else t.silent_fail||h.error("InvertOperator",'Unknown inverse of operator "{0}"',e.operator.type);t.trigger&&(this.trigger("afterInvert",e,t),this.trigger("rulesChanged"))}}),c.defaults({mongoOperators:{equal:function(e){return e[0]},not_equal:function(e){return{$ne:e[0]}},in:function(e){return{$in:e}},not_in:function(e){return{$nin:e}},less:function(e){return{$lt:e[0]}},less_or_equal:function(e){return{$lte:e[0]}},greater:function(e){return{$gt:e[0]}},greater_or_equal:function(e){return{$gte:e[0]}},between:function(e){return{$gte:e[0],$lte:e[1]}},not_between:function(e){return{$lt:e[0],$gt:e[1]}},begins_with:function(e){return{$regex:"^"+h.escapeRegExp(e[0])}},not_begins_with:function(e){return{$regex:"^(?!"+h.escapeRegExp(e[0])+")"}},contains:function(e){return{$regex:h.escapeRegExp(e[0])}},not_contains:function(e){return{$regex:"^((?!"+h.escapeRegExp(e[0])+").)*$",$options:"s"}},ends_with:function(e){return{$regex:h.escapeRegExp(e[0])+"$"}},not_ends_with:function(e){return{$regex:"(?<!"+h.escapeRegExp(e[0])+")$"}},is_empty:function(e){return""},is_not_empty:function(e){return{$ne:""}},is_null:function(e){return null},is_not_null:function(e){return{$ne:null}}},mongoRuleOperators:{$eq:function(e){return{val:e,op:null===e?"is_null":""===e?"is_empty":"equal"}},$ne:function(e){return{val:e=e.$ne,op:null===e?"is_not_null":""===e?"is_not_empty":"not_equal"}},$regex:function(e){return"^(?!"==(e=e.$regex).slice(0,4)&&")"==e.slice(-1)?{val:e.slice(4,-1),op:"not_begins_with"}:"^((?!"==e.slice(0,5)&&").)*$"==e.slice(-5)?{val:e.slice(5,-5),op:"not_contains"}:"(?<!"==e.slice(0,4)&&")$"==e.slice(-2)?{val:e.slice(4,-2),op:"not_ends_with"}:"$"==e.slice(-1)?{val:e.slice(0,-1),op:"ends_with"}:"^"==e.slice(0,1)?{val:e.slice(1),op:"begins_with"}:{val:e,op:"contains"}},between:function(e){return{val:[e.$gte,e.$lte],op:"between"}},not_between:function(e){return{val:[e.$lt,e.$gt],op:"not_between"}},$in:function(e){return{val:e.$in,op:"in"}},$nin:function(e){return{val:e.$nin,op:"not_in"}},$lt:function(e){return{val:e.$lt,op:"less"}},$lte:function(e){return{val:e.$lte,op:"less_or_equal"}},$gt:function(e){return{val:e.$gt,op:"greater"}},$gte:function(e){return{val:e.$gte,op:"greater_or_equal"}}}}),c.extend({getMongo:function(e){if(!(e=void 0===e?this.getRules():e))return null;var l=this;return function i(e){if(e.condition||(e.condition=l.settings.default_condition),-1===["AND","OR"].indexOf(e.condition.toUpperCase())&&h.error("UndefinedMongoCondition",'Unable to build MongoDB query with condition "{0}"',e.condition),!e.rules)return{};var o=[];e.rules.forEach(function(e){if(e.rules&&0<e.rules.length)o.push(i(e));else{var t=l.settings.mongoOperators[e.operator],r=l.getOperatorByType(e.operator);void 0===t&&h.error("UndefinedMongoOperator",'Unknown MongoDB operation for operator "{0}"',e.operator),0!==r.nb_inputs&&(e.value instanceof Array||(e.value=[e.value]));var n={};n[l.change("getMongoDBField",e.field,e)]=t.call(l,e.value),o.push(l.change("ruleToMongo",n,e,e.value,t))}});var t={};return t["$"+e.condition.toLowerCase()]=o,l.change("groupToMongo",t,e)}(e)},getRulesFromMongo:function(e){if(null==e)return null;var d=this;if("rules"in(e=d.change("parseMongoNode",e))&&"condition"in e)return e;if("id"in e&&"operator"in e&&"value"in e)return{condition:this.settings.default_condition,rules:[e]};var t=d.getMongoCondition(e);return t||h.error("MongoParse","Invalid MongoDB query format"),function u(e,t){var r=e[t],p=[];return r.forEach(function(e){if("rules"in(e=d.change("parseMongoNode",e))&&"condition"in e)p.push(e);else if("id"in e&&"operator"in e&&"value"in e)p.push(e);else{var t=d.getMongoCondition(e);if(t)p.push(u(e,t));else{var r=Object.keys(e)[0],n=e[r],i=d.getMongoOperator(n);void 0===i&&h.error("MongoParse","Invalid MongoDB query format");var o=d.settings.mongoRuleOperators[i];void 0===o&&h.error("UndefinedMongoOperator",'JSON Rule operation unknown for operator "{0}"',i);var l=o.call(d,n),s=d.getMongoDBFieldID(r,n),a=d.change("mongoToRule",{id:s,field:r,operator:l.op,value:l.val},e);p.push(a)}}}),d.change("mongoToGroup",{condition:t.replace("$","").toUpperCase(),rules:p},e)}(e,t)},setRulesFromMongo:function(e){this.setRules(this.getRulesFromMongo(e))},getMongoDBFieldID:function(t,e){var r=this.filters.filter(function(e){return e.field===t});return 1===r.length?r[0].id:this.change("getMongoDBFieldID",t,e)},getMongoOperator:function(e){if(null===e||"object"!=typeof e)return"$eq";if(void 0!==e.$gte&&void 0!==e.$lte)return"between";if(void 0!==e.$lt&&void 0!==e.$gt)return"not_between";var t=Object.keys(e).filter(function(e){return!!this.settings.mongoRuleOperators[e]}.bind(this));return 1===t.length?t[0]:void 0},getMongoCondition:function(e){for(var t=Object.keys(e),r=0,n=t.length;r<n;r++)if("$or"===t[r].toLowerCase()||"$and"===t[r].toLowerCase())return t[r]}}),c.define("not-group",function(r){var n=this;this.on("afterInit",function(){n.$el.on("click.queryBuilder","[data-not=group]",function(){var e=$(this).closest(c.selectors.group_container),t=n.getModel(e);t.not=!t.not}),n.model.on("update",function(e,t,r){t instanceof a&&"not"===r&&n.updateGroupNot(t)})}),this.on("afterAddGroup",function(e,t){t.__.not=!1}),r.disable_template||this.on("getGroupTemplate.filter",function(e){var t=$(e.value);t.find(c.selectors.condition_container).prepend('<button type="button" class="btn btn-xs btn-default" data-not="group"><i class="'+r.icon_unchecked+'"></i> '+n.translate("NOT")+"</button>"),e.value=t.prop("outerHTML")}),this.on("groupToJson.filter",function(e,t){e.value.not=t.not}),this.on("jsonToGroup.filter",function(e,t){e.value.not=!!t.not}),this.on("groupToSQL.filter",function(e,t){t.not&&(e.value="NOT ( "+e.value+" )")}),this.on("parseSQLNode.filter",function(e){e.value.name&&"NOT"==e.value.name.toUpperCase()&&(e.value=e.value.arguments.value[0],-1===["AND","OR"].indexOf(e.value.operation.toUpperCase())&&(e.value=new SQLParser.nodes.Op(n.settings.default_condition,e.value,null)),e.value.not=!0)}),this.on("sqlGroupsDistinct.filter",function(e,t,r,n){r.not&&0<n&&(e.value=!0)}),this.on("sqlToGroup.filter",function(e,t){e.value.not=!!t.not}),this.on("groupToMongo.filter",function(e,t){var r="$"+t.condition.toLowerCase();t.not&&e.value[r]&&(e.value={$nor:[e.value]})}),this.on("parseMongoNode.filter",function(e){var t=Object.keys(e.value);"$nor"==t[0]&&(e.value=e.value[t[0]][0],e.value.not=!0)}),this.on("mongoToGroup.filter",function(e,t){e.value.not=!!t.not})},{icon_unchecked:"glyphicon glyphicon-unchecked",icon_checked:"glyphicon glyphicon-check",disable_template:!1}),h.defineModelProperties(a,["not"]),c.selectors.group_not=c.selectors.group_header+" [data-not=group]",c.extend({updateGroupNot:function(e){var t=this.plugins["not-group"];e.$el.find(">"+c.selectors.group_not).toggleClass("active",e.not).find("i").attr("class",e.not?t.icon_checked:t.icon_unchecked),this.trigger("afterUpdateGroupNot",e),this.trigger("rulesChanged")}}),c.define("sortable",function(n){var i,o,l,s;"interact"in window||h.error("MissingLibrary",'interact.js is required to use "sortable" plugin. Get it here: http://interactjs.io'),void 0!==n.default_no_sortable&&(h.error(!1,"Config",'Sortable plugin : "default_no_sortable" options is deprecated, use standard "default_rule_flags" and "default_group_flags" instead'),this.settings.default_rule_flags.no_sortable=this.settings.default_group_flags.no_sortable=n.default_no_sortable),interact.dynamicDrop(!0),interact.pointerMoveTolerance(10),this.on("afterAddRule afterAddGroup",function(e,t){if(t!=i){var r=e.builder;n.inherit_no_sortable&&t.parent&&t.parent.flags.no_sortable&&(t.flags.no_sortable=!0),n.inherit_no_drop&&t.parent&&t.parent.flags.no_drop&&(t.flags.no_drop=!0),t.flags.no_sortable||interact(t.$el[0]).draggable({allowFrom:c.selectors.drag_handle,onstart:function(e){s=!1,l=r.getModel(e.target),o=l.$el.clone().appendTo(l.$el.parent()).width(l.$el.outerWidth()).addClass("dragging");var t=$('<div class="rule-placeholder">&nbsp;</div>').height(l.$el.outerHeight());i=l.parent.addRule(t,l.getPos()),l.$el.hide()},onmove:function(e){o[0].style.top=e.clientY-15+"px",o[0].style.left=e.clientX-15+"px"},onend:function(e){e.dropzone&&(u(l,$(e.relatedTarget),r),s=!0),o.remove(),o=void 0,i.drop(),i=void 0,l.$el.css("display",""),r.trigger("afterMove",l),r.trigger("rulesChanged")}}),t.flags.no_drop||(interact(t.$el[0]).dropzone({accept:c.selectors.rule_and_group_containers,ondragenter:function(e){u(i,$(e.target),r)},ondrop:function(e){s||u(l,$(e.target),r)}}),t instanceof a&&interact(t.$el.find(c.selectors.group_header)[0]).dropzone({accept:c.selectors.rule_and_group_containers,ondragenter:function(e){u(i,$(e.target),r)},ondrop:function(e){s||u(l,$(e.target),r)}}))}}),this.on("beforeDeleteRule beforeDeleteGroup",function(e,t){e.isDefaultPrevented()||(interact(t.$el[0]).unset(),t instanceof a&&interact(t.$el.find(c.selectors.group_header)[0]).unset())}),this.on("afterApplyRuleFlags afterApplyGroupFlags",function(e,t){t.flags.no_sortable&&t.$el.find(".drag-handle").remove()}),n.disable_template||(this.on("getGroupTemplate.filter",function(e,t){if(1<t){var r=$(e.value);r.find(c.selectors.condition_container).after('<div class="drag-handle"><i class="'+n.icon+'"></i></div>'),e.value=r.prop("outerHTML")}}),this.on("getRuleTemplate.filter",function(e){var t=$(e.value);t.find(c.selectors.rule_header).after('<div class="drag-handle"><i class="'+n.icon+'"></i></div>'),e.value=t.prop("outerHTML")}))},{inherit_no_sortable:!0,inherit_no_drop:!0,icon:"glyphicon glyphicon-sort",disable_template:!1}),c.selectors.rule_and_group_containers=c.selectors.rule_container+", "+c.selectors.group_container,c.selectors.drag_handle=".drag-handle",c.defaults({default_rule_flags:{no_sortable:!1,no_drop:!1},default_group_flags:{no_sortable:!1,no_drop:!1}}),c.define("sql-support",function(e){},{boolean_as_integer:!0}),c.defaults({sqlOperators:{equal:{op:"= ?"},not_equal:{op:"!= ?"},in:{op:"IN(?)",sep:", "},not_in:{op:"NOT IN(?)",sep:", "},less:{op:"< ?"},less_or_equal:{op:"<= ?"},greater:{op:"> ?"},greater_or_equal:{op:">= ?"},between:{op:"BETWEEN ?",sep:" AND "},not_between:{op:"NOT BETWEEN ?",sep:" AND "},begins_with:{op:"LIKE(?)",mod:"{0}%"},not_begins_with:{op:"NOT LIKE(?)",mod:"{0}%"},contains:{op:"LIKE(?)",mod:"%{0}%"},not_contains:{op:"NOT LIKE(?)",mod:"%{0}%"},ends_with:{op:"LIKE(?)",mod:"%{0}"},not_ends_with:{op:"NOT LIKE(?)",mod:"%{0}"},is_empty:{op:"= ''"},is_not_empty:{op:"!= ''"},is_null:{op:"IS NULL"},is_not_null:{op:"IS NOT NULL"}},sqlRuleOperator:{"=":function(e){return{val:e,op:""===e?"is_empty":"equal"}},"!=":function(e){return{val:e,op:""===e?"is_not_empty":"not_equal"}},LIKE:function(e){return"%"==e.slice(0,1)&&"%"==e.slice(-1)?{val:e.slice(1,-1),op:"contains"}:"%"==e.slice(0,1)?{val:e.slice(1),op:"ends_with"}:"%"==e.slice(-1)?{val:e.slice(0,-1),op:"begins_with"}:void h.error("SQLParse",'Invalid value for LIKE operator "{0}"',e)},"NOT LIKE":function(e){return"%"==e.slice(0,1)&&"%"==e.slice(-1)?{val:e.slice(1,-1),op:"not_contains"}:"%"==e.slice(0,1)?{val:e.slice(1),op:"not_ends_with"}:"%"==e.slice(-1)?{val:e.slice(0,-1),op:"not_begins_with"}:void h.error("SQLParse",'Invalid value for NOT LIKE operator "{0}"',e)},IN:function(e){return{val:e,op:"in"}},"NOT IN":function(e){return{val:e,op:"not_in"}},"<":function(e){return{val:e,op:"less"}},"<=":function(e){return{val:e,op:"less_or_equal"}},">":function(e){return{val:e,op:"greater"}},">=":function(e){return{val:e,op:"greater_or_equal"}},BETWEEN:function(e){return{val:e,op:"between"}},"NOT BETWEEN":function(e){return{val:e,op:"not_between"}},IS:function(e){return null!==e&&h.error("SQLParse","Invalid value for IS operator"),{val:null,op:"is_null"}},"IS NOT":function(e){return null!==e&&h.error("SQLParse","Invalid value for IS operator"),{val:null,op:"is_not_null"}}},sqlStatements:{question_mark:function(){var r=[];return{add:function(e,t){return r.push(t),"?"},run:function(){return r}}},numbered:function(r){(!r||1<r.length)&&(r="$");var n=0,i=[];return{add:function(e,t){return i.push(t),r+ ++n},run:function(){return i}}},named:function(n){(!n||1<n.length)&&(n=":");var i={},o={};return{add:function(e,t){i[e.field]||(i[e.field]=1);var r=e.field+"_"+i[e.field]++;return o[r]=t,n+r},run:function(){return o}}}},sqlRuleStatement:{question_mark:function(t){var r=0;return{parse:function(e){return"?"==e?t[r++]:e},esc:function(e){return e.replace(/\?/g,"'?'")}}},numbered:function(t,r){(!r||1<r.length)&&(r="$");var n=new RegExp("^\\"+r+"[0-9]+$"),i=new RegExp("\\"+r+"([0-9]+)","g");return{parse:function(e){return n.test(e)?t[e.slice(1)-1]:e},esc:function(e){return e.replace(i,"'"+("$"==r?"$$":r)+"$1'")}}},named:function(t,r){(!r||1<r.length)&&(r=":");var n=new RegExp("^\\"+r),i=new RegExp("\\"+r+"("+Object.keys(t).join("|")+")","g");return{parse:function(e){return n.test(e)?t[e.slice(1)]:e},esc:function(e){return e.replace(i,"'"+("$"==r?"$$":r)+"$1'")}}}}}),c.extend({getSQL:function(a,u,e){if(!(e=void 0===e?this.getRules():e))return null;u=u?"\n":" ";var p=this.getPluginOptions("sql-support","boolean_as_integer");if(!0===a&&(a="question_mark"),"string"==typeof a){var t=o(a);a=this.settings.sqlStatements[t[1]](t[2])}var d=this,r=function l(e){if(e.condition||(e.condition=d.settings.default_condition),-1===["AND","OR"].indexOf(e.condition.toUpperCase())&&h.error("UndefinedSQLCondition",'Unable to build SQL query with condition "{0}"',e.condition),!e.rules)return"";var s=[];e.rules.forEach(function(r){if(r.rules&&0<r.rules.length)s.push("("+u+l(r)+u+")"+u);else{var n=d.settings.sqlOperators[r.operator],e=d.getOperatorByType(r.operator),i="";void 0===n&&h.error("UndefinedSQLOperator",'Unknown SQL operation for operator "{0}"',r.operator),0!==e.nb_inputs&&(r.value instanceof Array||(r.value=[r.value]),r.value.forEach(function(e,t){0<t&&(i+=n.sep),"boolean"==r.type&&p?e=e?1:0:a||"integer"===r.type||"double"===r.type||"boolean"===r.type||(e=h.escapeString(e)),n.mod&&(e=h.fmt(n.mod,e)),a?i+=a.add(r,e):("string"==typeof e&&(e="'"+e+"'"),i+=e)}));var t=function(e){return n.op.replace("?",function(){return e})},o=d.change("getSQLField",r.field,r)+" "+t(i);s.push(d.change("ruleToSQL",o,r,i,t))}});var t=s.join(" "+e.condition+u);return d.change("groupToSQL",t,e)}(e);return a?{sql:r,params:a.run()}:{sql:r}},getRulesFromSQL:function(e,c){"SQLParser"in window||h.error("MissingLibrary","SQLParser is required to parse SQL queries. Get it here https://github.com/mistic100/sql-parser");var f=this;if("string"==typeof e&&(e={sql:e}),!0===c&&(c="question_mark"),"string"==typeof c){var t=o(c);c=this.settings.sqlRuleStatement[t[1]](e.params,t[2])}c&&(e.sql=c.esc(e.sql)),0!==e.sql.toUpperCase().indexOf("SELECT")&&(e.sql="SELECT * FROM table WHERE "+e.sql);var r=SQLParser.parse(e.sql);r.where||h.error("SQLParse","No WHERE clause found");var n=f.change("parseSQLNode",r.where.conditions);if("rules"in n&&"condition"in n)return n;if("id"in n&&"operator"in n&&"value"in n)return{condition:this.settings.default_condition,rules:[n]};var i=f.change("sqlToGroup",{condition:this.settings.default_condition,rules:[]},n),g=i;return function e(t,r){if(null!==t)if("rules"in(t=f.change("parseSQLNode",t))&&"condition"in t)g.rules.push(t);else if("id"in t&&"operator"in t&&"value"in t)g.rules.push(t);else if("left"in t&&"right"in t&&"operation"in t||h.error("SQLParse","Unable to parse WHERE clause"),-1!==["AND","OR"].indexOf(t.operation.toUpperCase())){if(f.change("sqlGroupsDistinct",0<r&&g.condition!=t.operation.toUpperCase(),g,t,r)){var n=f.change("sqlToGroup",{condition:f.settings.default_condition,rules:[]},t);g.rules.push(n),g=n}g.condition=t.operation.toUpperCase(),r++;var i=g;e(t.left,r),g=i,e(t.right,r)}else{var o;$.isPlainObject(t.right.value)&&h.error("SQLParse","Value format not supported for {0}.",t.left.value),o=$.isArray(t.right.value)?t.right.value.map(function(e){return e.value}):t.right.value,c&&(o=$.isArray(o)?o.map(c.parse):c.parse(o));var l=t.operation.toUpperCase();"<>"==l&&(l="!=");var s=f.settings.sqlRuleOperator[l];void 0===s&&h.error("UndefinedSQLOperator",'Invalid SQL operation "{0}".',t.operation);var a,u=s.call(this,o,t.operation);"values"in t.left?a=t.left.values.join("."):"value"in t.left?a=t.left.value:h.error("SQLParse","Cannot find field name in {0}",JSON.stringify(t.left));var p=f.getSQLFieldID(a,o),d=f.change("sqlToRule",{id:p,field:a,operator:u.op,value:u.val},t);g.rules.push(d)}}(n,0),i},setRulesFromSQL:function(e,t){this.setRules(this.getRulesFromSQL(e,t))},getSQLFieldID:function(t,e){var r=this.filters.filter(function(e){return e.field.toLowerCase()===t.toLowerCase()});return 1===r.length?r[0].id:this.change("getSQLFieldID",t,e)}}),c.define("unique-filter",function(){this.status.used_filters={},this.on("afterUpdateRuleFilter",this.updateDisabledFilters),this.on("afterDeleteRule",this.updateDisabledFilters),this.on("afterCreateRuleFilters",this.applyDisabledFilters),this.on("afterReset",this.clearDisabledFilters),this.on("afterClear",this.clearDisabledFilters),this.on("getDefaultFilter.filter",function(t,r){var n=t.builder;(n.updateDisabledFilters(),t.value.id in n.status.used_filters)&&(n.filters.some(function(e){if(!(e.id in n.status.used_filters)||0<n.status.used_filters[e.id].length&&-1===n.status.used_filters[e.id].indexOf(r.parent))return t.value=e,!0})||(h.error(!1,"UniqueFilter","No more non-unique filters available"),t.value=void 0))})}),c.extend({updateDisabledFilters:function(e){var r=e?e.builder:this;r.status.used_filters={},r.model&&(!function t(e){e.each(function(e){e.filter&&e.filter.unique&&(r.status.used_filters[e.filter.id]||(r.status.used_filters[e.filter.id]=[]),"group"==e.filter.unique&&r.status.used_filters[e.filter.id].push(e.parent))},function(e){t(e)})}(r.model.root),r.applyDisabledFilters(e))},clearDisabledFilters:function(e){var t=e?e.builder:this;t.status.used_filters={},t.applyDisabledFilters(e)},applyDisabledFilters:function(e){var r=e?e.builder:this;r.$el.find(c.selectors.filter_container+" option").prop("disabled",!1),$.each(r.status.used_filters,function(t,e){0===e.length?r.$el.find(c.selectors.filter_container+' option[value="'+t+'"]:not(:selected)').prop("disabled",!0):e.forEach(function(e){e.each(function(e){e.$el.find(c.selectors.filter_container+' option[value="'+t+'"]:not(:selected)').prop("disabled",!0)})})}),r.settings.plugins&&r.settings.plugins["bt-selectpicker"]&&r.$el.find(c.selectors.rule_filter).selectpicker("render")}}),c.regional.en={__locale:"English (en)",__author:'Damien "Mistic" Sorel, http://www.strangeplanet.fr',add_rule:"Add rule",add_group:"Add group",delete_rule:"Delete",delete_group:"Delete",conditions:{AND:"AND",OR:"OR"},operators:{equal:"equal",not_equal:"not equal",in:"in",not_in:"not in",less:"less",less_or_equal:"less or equal",greater:"greater",greater_or_equal:"greater or equal",between:"between",not_between:"not between",begins_with:"begins with",not_begins_with:"doesn't begin with",contains:"contains",not_contains:"doesn't contain",ends_with:"ends with",not_ends_with:"doesn't end with",is_empty:"is empty",is_not_empty:"is not empty",is_null:"is null",is_not_null:"is not null"},errors:{no_filter:"No filter selected",empty_group:"The group is empty",radio_empty:"No value selected",checkbox_empty:"No value selected",select_empty:"No value selected",string_empty:"Empty value",string_exceed_min_length:"Must contain at least {0} characters",string_exceed_max_length:"Must not contain more than {0} characters",string_invalid_format:"Invalid format ({0})",number_nan:"Not a number",number_not_integer:"Not an integer",number_not_double:"Not a real number",number_exceed_min:"Must be greater than {0}",number_exceed_max:"Must be lower than {0}",number_wrong_step:"Must be a multiple of {0}",number_between_invalid:"Invalid values, {0} is greater than {1}",datetime_empty:"Empty value",datetime_invalid:"Invalid date format ({0})",datetime_exceed_min:"Must be after {0}",datetime_exceed_max:"Must be before {0}",datetime_between_invalid:"Invalid values, {0} is greater than {1}",boolean_not_valid:"Not a boolean",operator_not_multiple:'Operator "{1}" cannot accept multiple values'},invert:"Invert",NOT:"NOT"},c.defaults({lang_code:"en"}),c});
\ No newline at end of file