Cloudlog/application/controllers/Dxatlas.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Dxatlas extends CI_Controller {

	public function index()
	{
		$this->load->model('user_model');
		$this->load->model('modes');
		$this->load->model('dxcc');
		$this->load->model('logbook_model');

		if(!$this->user_model->authorize(99)) { $this->session->set_flashdata('notice', 'You\'re not allowed to do that!'); redirect('dashboard'); }

		$data['worked_bands'] = $this->dxcc->get_worked_bands(); // Used in the view for band select
		$data['modes'] = $this->modes->active(); // Used in the view for mode select
		$data['dxcc'] = $this->logbook_model->fetchDxcc(); // Used in the view for dxcc select

		$data['page_title'] = "DX Atlas Gridsquare Export";

		$this->load->view('interface_assets/header', $data);
		$this->load->view('dxatlas/index');
		$this->load->view('interface_assets/footer');

	}

	public function export()
	{
		// Load Librarys
		$this->load->library('qra');
		$this->load->helper('file');

		// Load Database connections
		$this->load->model('dxatlas_model');

		// Parameters
		$band = $this->input->post('band');
		$mode = $this->input->post('mode');
		$dxcc = $this->input->post('dxcc_id');
		$cqz = $this->input->post('cqz');
		$propagation = $this->input->post('prop_mode');
		$fromdate = $this->input->post('fromdate');
		$todate = $this->input->post('todate');

		// Get QSOs with Valid QRAs
		$qsos = $this->dxatlas_model->get_gridsquares($band, $mode, $dxcc, $cqz, $propagation, $fromdate, $todate);

		$output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>";
		$output .= "<kml xmlns=\"http://www.opengis.net/kml/2.2\">";

		$output .= "<Document>";

		foreach ($qsos->result() as $row)
		{
			$output .= "<Placemark>";

			if($row->COL_GRIDSQUARE != null) {
				$stn_loc = $this->qra->qra2latlong($row->COL_GRIDSQUARE);

				$lat = $stn_loc[0];
				$lng = $stn_loc[1];
			} else {
				$query = $this->db->query('
					SELECT *
					FROM dxcc_entities
					WHERE prefix = SUBSTRING( \''.$row->COL_CALL.'\', 1, LENGTH( prefix ) )
					ORDER BY LENGTH( prefix ) DESC
					LIMIT 1
				');

				foreach ($query->result() as $dxcc) {
					$lat = $dxcc->lat;
					$lng = $dxcc->long;
				}
			}

			$timestamp = strtotime($row->COL_TIME_ON);

			$output .= "<name>".$row->COL_CALL."</name>";
			$output .= "<description><![CDATA[<p>Date/Time: ".date('Y-m-d H:i:s', ($timestamp))."<br/>Band: ".$row->COL_BAND."<br /></p>]]></description>";
			$output .= "<Point>";
			$output .= "<coordinates>".$lng.",".$lat.",0</coordinates>";
			$output .= "</Point>";
			$output .= "</Placemark>";
		}

		$output .= "</Document>";
		$output .= "</kml>";

		if (!file_exists('kml')) {
			mkdir('kml', 0755, true);
		}

		if ( ! write_file('kml/qsos.kml', $output))
		{
			echo 'Unable to write the file. Make sure the folder KML has write permissions.';
		}
		else
		{
			header("Content-Disposition: attachment; filename=\"qsos.kml\"");
			echo $output;
		}

	}
}