Cloudlog/application/models/Contesting_model.php

<?php
class Contesting_model extends CI_Model {
    function __construct()
    {
        // Call the Model constructor
        parent::__construct();

    }

    /*
     * This function gets the QSOs to fill the "Contest Logbook" under the contesting form.
     */
    function getSessionQsos($qso) {
        $CI =& get_instance();
        $CI->load->model('Stations');
        $station_id = $CI->Stations->find_active();

        $qsoarray = explode(',', $qso);

        $contestid = $qsoarray[2];
        $date = DateTime::createFromFormat('d-m-Y H:i:s', $qsoarray[0]);
        $date = $date->format('Y-m-d H:i:s');

        $sql = "SELECT date_format(col_time_on, '%d-%m-%Y %H:%i:%s') as col_time_on, col_call, col_band, col_mode, col_submode, col_rst_sent, col_rst_rcvd, col_srx, col_srx_string, col_stx, col_stx_string FROM " .
            $this->config->item('table_name') .
            " WHERE station_id = " . $station_id .
            " AND COL_TIME_ON >= '" . $date . "'" .
            " AND COL_CONTEST_ID = '" . $contestid . "'" .
            " ORDER BY COL_PRIMARY_KEY ASC";

        $data = $this->db->query($sql);
        header('Content-Type: application/json');
        echo json_encode($data->result());
    }
}