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https://github.com/node-red/node-red
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Added update functionality to mongodb out node
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Anna Thomas
parent
abd3d752f5
commit
4f2e4b58e4
@ -72,50 +72,76 @@
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<div class="form-row">
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<label for="node-input-operation"><i class="fa fa-wrench"></i> Operation</label>
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<select type="text" id="node-input-operation" style="display: inline-block; vertical-align: top;">
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<option value="store">save</option>
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<option value="save">save</option>
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<option value="insert">insert</option>
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<!-- <option value="update">update</option> -->
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<option value="update">update</option>
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<option value="delete">remove</option>
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</select>
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</div>
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<div class="form-row node-input-payonly">
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<label> </label>
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<input type="checkbox" id="node-input-payonly" placeholder="Only" style="display: inline-block; width: auto; vertical-align: top;">
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<label for="node-input-payonly" style="width: 70%;">Only store msg.payload object ?</label>
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<label for="node-input-payonly" style="width: 70%;">Only store msg.payload object</label>
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</div>
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<div class="form-row node-input-upsert">
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<label> </label>
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<input type="checkbox" id="node-input-upsert" placeholder="Only" style="display: inline-block; width: auto; vertical-align: top;">
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<label for="node-input-upsert" style="width: 70%;">Create a new document if no match found</label>
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</div>
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<div class="form-row node-input-multi">
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<label> </label>
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<input type="checkbox" id="node-input-multi" placeholder="Only" style="display: inline-block; width: auto; vertical-align: top;;">
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<label for="node-input-multi" style="width: 70%;">Update all matching documents</label>
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</div>
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<div class="form-row">
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<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
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<input type="text" id="node-input-name" placeholder="Name">
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</div>
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<script>
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$("#node-input-operation").change(function() {
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var id = $("#node-input-operation option:selected").val();
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if (id == "delete") $(".node-input-payonly").hide();
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else $(".node-input-payonly").show();
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});
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</script>
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</script>
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<script type="text/x-red" data-help-name="mongodb out">
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<p>A simple MongoDB output node. Stores the <b>msg</b> object in a chosen collection.</p>
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<p>A simple MongoDB output node. Can save, insert, update and remove objects from a chosen collection.</p>
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<p>Save will update an existing object or insert a new object if one does not already exist.</p>
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<p>Insert will insert a new object.</p>
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<p>Save and insert either store <b>msg</b> or <b>msg.payload</b>.</p>
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<p>Update will modify an existing object or objects. The query to select objects to update uses <b>msg.query</b> and the update to the element uses <b>msg.payload</b>.</p>
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<p>Update can add a object if it does not exist or update multiple objects.</p>
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<p>Remove will remove objects that match the query passed in on <b>msg.payload</b>. A blank query will delete <i>all of the objects</i> in the collection.</p>
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<p>By default MongoDB creates an <i>_id</i> property as the primary key - so repeated injections of the same <b>msg</b> will result in many database entries.</p>
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<p>If this is NOT the desired behaviour - ie you want repeated entries to overwrite, then you must set the <b>msg._id</b> property to be a constant by the use of a previous function node.</p>
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<p>If this is NOT the desired behaviour - ie. you want repeated entries to overwrite, then you must set the <b>msg._id</b> property to be a constant by the use of a previous function node.</p>
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<p>This could be a unique constant or you could create one based on some other msg property.</p>
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<p>Currently we do not limit or cap the collection size at all... this may well change.</p>
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<p>You can also choose to <b>remove</b> items. To do so the <b>msg.payload</b> <i>MUST</i> contain an object that will select the items(s) to remove.
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A blank object will delete <i>all of the objects</i> in the collection.</p>
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</script>
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<script type="text/javascript">
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function oneditprepare() {
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$("#node-input-operation").change(function () {
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var id = $("#node-input-operation option:selected").val();
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if (id === "update") {
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$(".node-input-payonly").hide();
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$(".node-input-upsert, .node-input-multi").show();
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} else if (id == "delete") {
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$(".node-input-payonly, .node-input-upsert, .node-input-multi").hide();
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} else {
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$(".node-input-payonly").show();
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$(".node-input-upsert, .node-input-multi").hide();
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}
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});
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}
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RED.nodes.registerType('mongodb out',{
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category: 'storage-output',
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color:"rgb(218, 196, 180)",
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defaults: {
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mongodb: { type:"mongodb",required:true},
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name: {value:""},
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collection: {value:"",required:true},
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payonly: {value:false},
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operation: {value:"store"}
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mongodb: {type: "mongodb", required: true},
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name: {value: ""},
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collection: {value: "", required: true},
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payonly: {value: false},
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upsert: {value: false},
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multi: {value: false},
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operation: {value: "save"}
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},
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inputs:1,
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outputs:0,
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@ -127,7 +153,8 @@
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},
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labelStyle: function() {
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return this.name?"node_label_italic":"";
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}
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},
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oneditprepare: oneditprepare
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});
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</script>
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@ -47,6 +47,8 @@ module.exports = function(RED) {
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this.collection = n.collection;
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this.mongodb = n.mongodb;
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this.payonly = n.payonly || false;
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this.upsert = n.upsert || false;
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this.multi = n.multi || false;
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this.operation = n.operation;
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this.mongoConfig = RED.nodes.getNode(this.mongodb);
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@ -59,7 +61,7 @@ module.exports = function(RED) {
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node.clientDb = db;
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var coll = db.collection(node.collection);
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node.on("input",function(msg) {
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if (node.operation == "store") {
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if (node.operation === "save") {
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delete msg._topic;
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if (node.payonly) {
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if (typeof msg.payload !== "object") { msg.payload = {"payload":msg.payload}; }
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@ -68,7 +70,7 @@ module.exports = function(RED) {
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coll.save(msg,function(err,item){if (err){node.error(err);}});
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}
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}
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else if (node.operation == "insert") {
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else if (node.operation === "insert") {
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delete msg._topic;
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if (node.payonly) {
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if (typeof msg.payload !== "object") { msg.payload = {"payload":msg.payload}; }
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@ -77,17 +79,26 @@ module.exports = function(RED) {
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coll.insert(msg,function(err,item){if (err){node.error(err);}});
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}
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}
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else if (node.operation == "update") {
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delete msg._topic;
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if (node.payonly) {
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if (typeof msg.payload !== "object") { msg.payload = {"payload":msg.payload}; }
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coll.update(msg.payload,function(err,item){ if (err){node.error(err);} });
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} else {
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coll.update(msg,function(err,item){if (err){node.error(err);}});
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}
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else if (node.operation === "update") {
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var query = msg.query || {};
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var payload = msg.payload || {};
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var options = {
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upsert: node.upsert,
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multi: node.multi
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};
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coll.update(query, payload, options, function(err, item) {
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if (err) {
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node.error(err);
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}
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});
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}
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if (node.operation == "delete") {
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coll.remove(msg.payload, {w:1}, function(err, items){ if (err) { node.error(err); } });
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coll.remove(msg.payload, function(err, items) {
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if (err) {
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node.error(err);
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}
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});
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}
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});
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}
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