Cloudlog/application/controllers/Logbook.php

697 wiersze
24 KiB
PHP
Executable File

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Logbook extends CI_Controller {
function index()
{
$this->load->model('user_model');
if(!$this->user_model->authorize($this->config->item('auth_mode'))) {
if($this->user_model->validate_session()) {
$this->user_model->clear_session();
show_error('Access denied<p>Click <a href="'.site_url('user/login').'">here</a> to log in as another user', 403);
} else {
redirect('user/login');
}
}
$this->load->library('pagination');
$config['base_url'] = base_url().'index.php/logbook/index/';
$config['total_rows'] = $this->db->count_all($this->config->item('table_name'));
$config['per_page'] = '25';
$config['num_links'] = 6;
$config['full_tag_open'] = '';
$config['full_tag_close'] = '';
$config['cur_tag_open'] = '<strong class="active"><a href="">';
$config['cur_tag_close'] = '</a></strong>';
$this->pagination->initialize($config);
//load the model and get results
$this->load->model('logbook_model');
$data['results'] = $this->logbook_model->get_qsos($config['per_page'],$this->uri->segment(3));
// Calculate Lat/Lng from Locator to use on Maps
if($this->session->userdata('user_locator')) {
$this->load->library('qra');
$qra_position = $this->qra->qra2latlong($this->session->userdata('user_locator'));
$data['qra'] = "set";
$data['qra_lat'] = $qra_position[0];
$data['qra_lng'] = $qra_position[1];
} else {
$data['qra'] = "none";
}
// load the view
$data['page_title'] = "Logbook";
$this->load->view('interface_assets/header', $data);
$this->load->view('view_log/index');
$this->load->view('interface_assets/footer');
}
function jsonentity($adif) {
$this->load->model('user_model');
if(!$this->user_model->authorize($this->config->item('auth_mode'))) { return; }
$return['dxcc'] = $this->getentity($adif);
header('Content-Type: application/json');
echo json_encode($return, JSON_PRETTY_PRINT);
}
function json($callsign, $type, $band, $mode)
{
$this->load->model('user_model');
if(!$this->user_model->authorize($this->config->item('auth_mode'))) { return; }
// Check if callsign is an LOTW User
$lotw_member = "";
$lotw_file_name = "./updates/lotw_users.csv";
if (file_exists($lotw_file_name)) {
$f = fopen($lotw_file_name, "r");
$result = false;
while ($row = fgetcsv($f)) {
if ($row[0] == strtoupper($callsign)) {
$result = $row[0];
$lotw_member = "active";
break;
}
}
if($lotw_member != "active") {
$lotw_member = "not found";
}
fclose($f);
} else {
$lotw_member = "not found";
}
// Check Database for all other data
$this->load->model('logbook_model');
$return = [
"dxcc" => false,
"callsign_name" => "",
"callsign_qra" => "",
"callsign_qth" => "",
"callsign_iota" => "",
"callsign_state" => "",
"callsign_us_county" => "",
"qsl_manager" => "",
"bearing" => "",
"workedBefore" => false,
"lotw_member" => $lotw_member,
];
$return['dxcc'] = $this->dxcheck($callsign);
$return['partial'] = $this->partial($callsign);
// Do we have local data for the Callsign?
if($this->logbook_model->call_name($callsign) != null)
{
if ($this->session->userdata('user_measurement_base') == NULL) {
$measurement_base = $this->config->item('measurement_base');
}
else {
$measurement_base = $this->session->userdata('user_measurement_base');
}
$return['callsign_name'] = $this->logbook_model->call_name($callsign);
$return['callsign_qra'] = $this->logbook_model->call_qra($callsign);
$return['callsign_qth'] = $this->logbook_model->call_qth($callsign);
$return['callsign_iota'] = $this->logbook_model->call_iota($callsign);
$return['qsl_manager'] = $this->logbook_model->call_qslvia($callsign);
$return['bearing'] = $this->bearing($return['callsign_qra'], $measurement_base);
$return['workedBefore'] = $this->worked_grid_before($return['callsign_qra'], $type, $band, $mode);
if ($return['callsign_qra'] != "") {
$return['latlng'] = $this->qralatlng($return['callsign_qra']);
}
echo json_encode($return, JSON_PRETTY_PRINT);
return;
}
if ($this->config->item('callbook') == "qrz" && $this->config->item('qrz_username') != null && $this->config->item('qrz_password') != null)
{
// Lookup using QRZ
$this->load->library('qrz');
if(!$this->session->userdata('qrz_session_key')) {
$qrz_session_key = $this->qrz->session($this->config->item('qrz_username'), $this->config->item('qrz_password'));
$this->session->set_userdata('qrz_session_key', $qrz_session_key);
}
$callbook = $this->qrz->search($callsign, $this->session->userdata('qrz_session_key'));
}
if ($this->config->item('callbook') == "hamqth" && $this->config->item('hamqth_username') != null && $this->config->item('hamqth_password') != null)
{
// Load the HamQTH library
$this->load->library('hamqth');
if(!$this->session->userdata('hamqth_session_key')) {
$hamqth_session_key = $this->hamqth->session($this->config->item('hamqth_username'), $this->config->item('hamqth_password'));
$this->session->set_userdata('hamqth_session_key', $hamqth_session_key);
}
$callbook = $this->hamqth->search($callsign, $this->session->userdata('hamqth_session_key'));
// If HamQTH session has expired, start a new session and retry the search.
if($callbook['error'] == "Session does not exist or expired") {
$hamqth_session_key = $this->hamqth->session($this->config->item('hamqth_username'), $this->config->item('hamqth_password'));
$this->session->set_userdata('hamqth_session_key', $hamqth_session_key);
$callbook = $this->hamqth->search($callsign, $this->session->userdata('hamqth_session_key'));
}
}
if (isset($callbook))
{
$return['callsign_name'] = $callbook['name'];
$return['callsign_qra'] = $callbook['gridsquare'];
$return['callsign_qth'] = $callbook['city'];
$return['callsign_iota'] = $callbook['iota'];
$return['callsign_state'] = $callbook['state'];
$return['callsign_us_county'] = $callbook['us_county'];
if(isset($callbook['qslmgr'])) {
$return['qsl_manager'] = $callbook['qslmgr'];
}
if ($return['callsign_qra'] != "") {
$return['latlng'] = $this->qralatlng($return['callsign_qra']);
}
$return['workedBefore'] = $this->worked_grid_before($return['callsign_qra'], $type, $band, $mode);
}
if ($this->session->userdata('user_measurement_base') == NULL) {
$measurement_base = $this->config->item('measurement_base');
}
else {
$measurement_base = $this->session->userdata('user_measurement_base');
}
$return['bearing'] = $this->bearing($return['callsign_qra'], $measurement_base);
echo json_encode($return, JSON_PRETTY_PRINT);
return;
}
function worked_grid_before($gridsquare, $type, $band, $mode)
{
if (strlen($gridsquare) < 4)
return false;
$CI =& get_instance();
$CI->load->model('Stations');
$station_id = $CI->Stations->find_active();
if($type == "SAT") {
$this->db->where('COL_PROP_MODE', 'SAT');
} else {
$this->db->where('COL_MODE', $mode);
$this->db->where('COL_BAND', $band);
$this->db->where('COL_PROP_MODE !=','SAT');
}
$this->db->where('station_id', $station_id);
$this->db->like('SUBSTRING(COL_GRIDSQUARE, 1, 4)', substr($gridsquare, 0, 4));
$this->db->order_by($this->config->item('table_name').".COL_TIME_ON", "desc");
$this->db->limit(1);
$query = $this->db->get($this->config->item('table_name'));
foreach ($query->result() as $workedBeforeRow)
{
return true;
}
return false;
}
/*
* Function: jsonlookupgrid
*
* Usage: Used to look up gridsquares when creating a QSO to check whether its needed or not
* the $type variable is only used for satellites, set this to SAT.
*
*/
function jsonlookupgrid($gridsquare, $type, $band, $mode) {
$return = [
"workedBefore" => false,
];
$CI =& get_instance();
$CI->load->model('Stations');
$station_id = $CI->Stations->find_active();
if($type == "SAT") {
$this->db->where('COL_PROP_MODE', 'SAT');
} else {
$this->db->where('COL_MODE', $mode);
$this->db->where('COL_BAND', $band);
$this->db->where('COL_PROP_MODE !=','SAT');
}
$this->db->where('station_id', $station_id);
$this->db->like('SUBSTRING(COL_GRIDSQUARE, 1, 4)', substr($gridsquare, 0, 4));
$query = $this->db->get($this->config->item('table_name'), 1, 0);
foreach ($query->result() as $workedBeforeRow)
{
$return['workedBefore'] = true;
}
header('Content-Type: application/json');
echo json_encode($return, JSON_PRETTY_PRINT);
return;
}
function jsonlookupdxcc($country, $type, $band, $mode) {
$return = [
"workedBefore" => false,
];
$CI =& get_instance();
$CI->load->model('Stations');
$station_id = $CI->Stations->find_active();
if($type == "SAT") {
$this->db->where('COL_PROP_MODE', 'SAT');
} else {
$this->db->where('COL_MODE', $mode);
$this->db->where('COL_BAND', $band);
$this->db->where('COL_PROP_MODE !=','SAT');
}
$this->db->where('station_id', $station_id);
$this->db->where('COL_COUNTRY', urldecode($country));
$query = $this->db->get($this->config->item('table_name'), 1, 0);
foreach ($query->result() as $workedBeforeRow)
{
$return['workedBefore'] = true;
}
header('Content-Type: application/json');
echo json_encode($return, JSON_PRETTY_PRINT);
return;
}
function jsonlookupcallsign($callsign, $type, $band, $mode) {
$return = [
"workedBefore" => false,
];
$CI =& get_instance();
$CI->load->model('Stations');
$station_id = $CI->Stations->find_active();
if($type == "SAT") {
$this->db->where('COL_PROP_MODE', 'SAT');
} else {
$this->db->where('COL_MODE', $mode);
$this->db->where('COL_BAND', $band);
$this->db->where('COL_PROP_MODE !=','SAT');
}
$this->db->where('station_id', $station_id);
$this->db->where('COL_CALL', strtoupper($callsign));
$query = $this->db->get($this->config->item('table_name'), 1, 0);
foreach ($query->result() as $workedBeforeRow)
{
$return['workedBefore'] = true;
}
header('Content-Type: application/json');
echo json_encode($return, JSON_PRETTY_PRINT);
return;
}
/* Used to generate maps for displaying on /logbook/ */
function qso_map() {
$this->load->model('logbook_model');
$this->load->library('qra');
$data['qsos'] = $this->logbook_model->get_qsos($this->uri->segment(3),$this->uri->segment(4));
echo "{\"markers\": [";
$count = 1;
foreach ($data['qsos']->result() as $row) {
if($row->COL_GRIDSQUARE != null) {
$stn_loc = $this->qra->qra2latlong($row->COL_GRIDSQUARE);
if($count != 1) {
echo ",";
}
if($row->COL_SAT_NAME != null) {
echo "{\"lat\":\"".$stn_loc[0]."\",\"lng\":\"".$stn_loc[1]."\", \"html\":\"Callsign: ".$row->COL_CALL."<br />Date/Time: ".$row->COL_TIME_ON."<br />SAT: ".$row->COL_SAT_NAME."<br />Mode: ".$row->COL_MODE."\",\"label\":\"".$row->COL_CALL."\"}";
} else {
echo "{\"lat\":\"".$stn_loc[0]."\",\"lng\":\"".$stn_loc[1]."\", \"html\":\"Callsign: ".$row->COL_CALL."<br />Date/Time: ".$row->COL_TIME_ON."<br />Band: ".$row->COL_BAND."<br />Mode: ".$row->COL_MODE."\",\"label\":\"".$row->COL_CALL."\"}";
}
$count++;
} 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 $dxcc) {
if($count != 1) {
echo ",";
}
echo "{\"lat\":\"".$dxcc->lat."\",\"lng\":\"".$dxcc->long."\", \"html\":\"Callsign: ".$row->COL_CALL."<br />Date/Time: ".$row->COL_TIME_ON."<br />Band: ".$row->COL_BAND."<br />Mode: ".$row->COL_MODE."\",\"label\":\"".$row->COL_CALL."\"}";
$count++;
}
}
}
echo "]";
echo "}";
}
function view($id) {
$this->load->model('user_model');
if(!$this->user_model->authorize($this->config->item('auth_mode'))) { return; }
$this->load->library('qra');
$this->load->model('logbook_model');
$data['query'] = $this->logbook_model->get_qso($id);
if ($this->session->userdata('user_measurement_base') == NULL) {
$data['measurement_base'] = $this->config->item('measurement_base');
}
else {
$data['measurement_base'] = $this->session->userdata('user_measurement_base');
}
$this->load->view('interface_assets/mini_header', $data);
$this->load->view('view_log/qso');
$this->load->view('interface_assets/footer');
}
function partial($id) {
$this->load->model('user_model');
if(!$this->user_model->authorize($this->config->item('auth_mode'))) { return; }
$html = "";
$this->db->select(''.$this->config->item('table_name').'.COL_CALL, '.$this->config->item('table_name').'.COL_BAND, '.$this->config->item('table_name').'.COL_TIME_ON, '.$this->config->item('table_name').'.COL_RST_RCVD, '.$this->config->item('table_name').'.COL_RST_SENT, '.$this->config->item('table_name').'.COL_MODE, '.$this->config->item('table_name').'.COL_SUBMODE, '.$this->config->item('table_name').'.COL_PRIMARY_KEY, '.$this->config->item('table_name').'.COL_SAT_NAME, '.$this->config->item('table_name').'.COL_GRIDSQUARE, '.$this->config->item('table_name').'.COL_QSL_RCVD, '.$this->config->item('table_name').'.COL_EQSL_QSL_RCVD, '.$this->config->item('table_name').'.COL_EQSL_QSL_SENT, '.$this->config->item('table_name').'.COL_QSL_SENT, '.$this->config->item('table_name').'.COL_STX, '.$this->config->item('table_name').'.COL_STX_STRING, '.$this->config->item('table_name').'.COL_SRX, '.$this->config->item('table_name').'.COL_SRX_STRING, '.$this->config->item('table_name').'.COL_LOTW_QSL_SENT, '.$this->config->item('table_name').'.COL_LOTW_QSL_RCVD, '.$this->config->item('table_name').'.COL_VUCC_GRIDS, station_profile.*');
$this->db->from($this->config->item('table_name'));
$this->db->join('station_profile', 'station_profile.station_id = '.$this->config->item('table_name').'.station_id');
$this->db->order_by(''.$this->config->item('table_name').'.COL_TIME_ON', "desc");
$this->db->like($this->config->item('table_name').'.COL_CALL', $id);
$this->db->order_by($this->config->item('table_name').".COL_TIME_ON", "desc");
$this->db->limit(5);
$query = $this->db->get();
if ($query->num_rows() > 0)
{
$html .= "<div class=\"table-responsive\">";
$html .= "<table class=\"table\">";
$html .= "<tr>";
$html .= "<td>Date</td>";
$html .= "<td>Callsign</td>";
$html .= "<td>RST (S)</td>";
$html .= "<td>RST (R)</td>";
$html .= "<td>Band</td>";
$html .= "<td>Mode</td>";
$html .= "<td>QSL</td>";
$html .= "<td></td>";
$html .= "</tr>";
foreach ($query->result() as $row)
{
$html .= "<tr>";
$html .= "<td>".date($this->config->item('qso_date_format').' H:i',strtotime($row->COL_TIME_ON))."</td>";
$html .= "<td>".str_replace("0","&Oslash;",strtoupper($row->COL_CALL))."</td>";
$html .= "<td>".$row->COL_RST_SENT."</td>";
$html .= "<td>".$row->COL_RST_RCVD."</td>";
if($row->COL_SAT_NAME != null) {
$html .= "<td>".$row->COL_SAT_NAME."</td>";
} else {
$html .= "<td>".$row->COL_BAND."</td>";
}
if ($row->COL_SUBMODE==null)
$html .= "<td>".$row->COL_MODE."</td>";
else
$html .= "<td>".$row->COL_SUBMODE."</td>";
$html .= "<td class=\"qsl\">";
$html .= "<span class=\"qsl-";
switch ($row->COL_QSL_SENT) {
case "Y":
$html .= "green";
break;
case "Q":
$html .= "yellow";
break;
case "R":
$html .= "yellow";
break;
case "I":
echo "grey";
break;
default:
$html .= "red";
}
$html .= "\">&#9650;</span>";
$html .= "<span class=\"qsl-";
switch ($row->COL_QSL_RCVD) {
case "Y":
$html .= "green";
break;
case "Q":
$html .= "yellow";
break;
case "R":
$html .= "yellow";
break;
case "I":
echo "grey";
break;
default:
$html .= "red";
}
$html .= "\">&#9660;</span>";
$html .= "</td>";
$html .= "<td><span class=\"badge badge-info\">".$row->station_callsign."</span></td>";
$html .= "</tr>";
}
$html .= "</table>";
$html .= "</div>";
return $html;
} else {
if ($this->config->item('callbook') == "qrz" && $this->config->item('qrz_username') != null && $this->config->item('qrz_password') != null) {
// Lookup using QRZ
$this->load->library('qrz');
if(!$this->session->userdata('qrz_session_key')) {
$qrz_session_key = $this->qrz->session($this->config->item('qrz_username'), $this->config->item('qrz_password'));
$this->session->set_userdata('qrz_session_key', $qrz_session_key);
}
$data['callsign'] = $this->qrz->search($id, $this->session->userdata('qrz_session_key'));
}
// There's no hamli integration? Disabled for now.
/*else {
// Lookup using hamli
$this->load->library('hamli');
$data['callsign'] = $this->hamli->callsign($id);
}*/
$data['id'] = strtoupper($id);
return $this->load->view('search/result', $data, true);
}
}
function search_result($id="") {
$this->load->model('user_model');
if(!$this->user_model->authorize($this->config->item('auth_mode'))) { return; }
$this->db->select(''.$this->config->item('table_name').'.COL_CALL, '.$this->config->item('table_name').'.COL_BAND, '.$this->config->item('table_name').'.COL_TIME_ON, '.$this->config->item('table_name').'.COL_RST_RCVD, '.$this->config->item('table_name').'.COL_RST_SENT, '.$this->config->item('table_name').'.COL_MODE, '.$this->config->item('table_name').'.COL_SUBMODE, '.$this->config->item('table_name').'.COL_NAME, '.$this->config->item('table_name').'.COL_COUNTRY, '.$this->config->item('table_name').'.COL_PRIMARY_KEY, '.$this->config->item('table_name').'.COL_SAT_NAME, '.$this->config->item('table_name').'.COL_GRIDSQUARE, '.$this->config->item('table_name').'.COL_QSL_RCVD, '.$this->config->item('table_name').'.COL_EQSL_QSL_RCVD, '.$this->config->item('table_name').'.COL_EQSL_QSL_SENT, '.$this->config->item('table_name').'.COL_QSL_SENT, '.$this->config->item('table_name').'.COL_STX, '.$this->config->item('table_name').'.COL_STX_STRING, '.$this->config->item('table_name').'.COL_SRX, '.$this->config->item('table_name').'.COL_SRX_STRING, '.$this->config->item('table_name').'.COL_LOTW_QSL_SENT, '.$this->config->item('table_name').'.COL_LOTW_QSL_RCVD, '.$this->config->item('table_name').'.COL_VUCC_GRIDS, station_profile.*');
$this->db->from($this->config->item('table_name'));
$this->db->join('station_profile', 'station_profile.station_id = '.$this->config->item('table_name').'.station_id');
$this->db->like(''.$this->config->item('table_name').'.COL_CALL', $id);
$this->db->or_like(''.$this->config->item('table_name').'.COL_GRIDSQUARE', $id);
$this->db->or_like(''.$this->config->item('table_name').'.COL_VUCC_GRIDS', $id);
$this->db->order_by(''.$this->config->item('table_name').'.COL_TIME_ON', 'desc');
$query = $this->db->get();
if ($query->num_rows() > 0)
{
$data['results'] = $query;
$this->load->view('view_log/partial/log.php', $data);
} else {
$this->load->model('search');
$iota_search = $this->search->callsign_iota($id);
if ($iota_search->num_rows() > 0)
{
$data['results'] = $iota_search;
$this->load->view('view_log/partial/log.php', $data);
} else {
if ($this->config->item('callbook') == "qrz" && $this->config->item('qrz_username') != null && $this->config->item('qrz_password') != null) {
// Lookup using QRZ
$this->load->library('qrz');
if(!$this->session->userdata('qrz_session_key')) {
$qrz_session_key = $this->qrz->session($this->config->item('qrz_username'), $this->config->item('qrz_password'));
$this->session->set_userdata('qrz_session_key', $qrz_session_key);
}
$data['callsign'] = $this->qrz->search($id, $this->session->userdata('qrz_session_key'));
} else {
// Lookup using hamli
$this->load->library('hamli');
$data['callsign'] = $this->hamli->callsign($id);
}
$data['id'] = strtoupper($id);
$this->load->view('search/result', $data);
}
}
}
/*
* Provide a dxcc search, returning results json encoded
*/
function local_find_dxcc($call = "", $date = "") {
$this->load->model("logbook_model");
if ($date == ''){
$date = date("Y-m-d");
}
$ans = $this->logbook_model->check_dxcc_stored_proc($call, $date);
print json_encode($ans);
}
function dxcheck($call = "", $date = "") {
$this->load->model("logbook_model");
if ($date == ''){
$date = date("Y-m-d");
}
$ans = $this->logbook_model->dxcc_lookup($call, $date);
return $ans;
}
function getentity($adif) {
$this->load->model("logbook_model");
$entity = $this->logbook_model->get_entity($adif);
return $entity;
}
/* return station bearing */
function searchbearing($locator) {
$this->load->library('Qra');
if($locator != null) {
if($this->session->userdata('user_locator') != null){
$mylocator = $this->session->userdata('user_locator');
} else {
$mylocator = $this->config->item('locator');
}
if ($this->session->userdata('user_measurement_base') == NULL) {
$measurement_base = $this->config->item('measurement_base');
}
else {
$measurement_base = $this->session->userdata('user_measurement_base');
}
$bearing = $this->qra->bearing($mylocator, $locator, $measurement_base);
echo $bearing;
}
return "";
}
/* return station bearing */
function bearing($locator, $unit = 'M') {
$this->load->library('Qra');
if($locator != null) {
if($this->session->userdata('user_locator') != null){
$mylocator = $this->session->userdata('user_locator');
} else {
$mylocator = $this->config->item('locator');
}
$bearing = $this->qra->bearing($mylocator, $locator, $unit);
return $bearing;
}
return "";
}
function qralatlng($qra) {
$this->load->library('Qra');
$latlng = $this->qra->qra2latlong($qra);
return $latlng;
}
function qralatlngjson($qra) {
$this->load->library('Qra');
$latlng = $this->qra->qra2latlong($qra);
print json_encode($latlng);
}
function get_qsos($num, $offset) {
$this->db->select(''.$this->config->item('table_name').'.COL_CALL, '.$this->config->item('table_name').'.COL_BAND, '.$this->config->item('table_name').'.COL_TIME_ON, '.$this->config->item('table_name').'.COL_RST_RCVD, '.$this->config->item('table_name').'.COL_RST_SENT, '.$this->config->item('table_name').'.COL_MODE, '.$this->config->item('table_name').'.COL_SUBMODE, '.$this->config->item('table_name').'.COL_NAME, '.$this->config->item('table_name').'.COL_COUNTRY, '.$this->config->item('table_name').'.COL_PRIMARY_KEY, '.$this->config->item('table_name').'.COL_SAT_NAME, '.$this->config->item('table_name').'.COL_GRIDSQUARE, '.$this->config->item('table_name').'.COL_QSL_RCVD, '.$this->config->item('table_name').'.COL_EQSL_QSL_RCVD, '.$this->config->item('table_name').'.COL_EQSL_QSL_SENT, '.$this->config->item('table_name').'.COL_QSL_SENT, '.$this->config->item('table_name').'.COL_STX, '.$this->config->item('table_name').'.COL_STX_STRING, '.$this->config->item('table_name').'.COL_SRX, '.$this->config->item('table_name').'.COL_SRX_STRING, '.$this->config->item('table_name').'.COL_LOTW_QSL_SENT, '.$this->config->item('table_name').'.COL_LOTW_QSL_RCVD, '.$this->config->item('table_name').'.COL_VUCC_GRIDS, station_profile.*');
$this->db->from($this->config->item('table_name'));
$this->db->join('station_profile', 'station_profile.station_id = '.$this->config->item('table_name').'.station_id');
$this->db->order_by(''.$this->config->item('table_name').'.COL_TIME_ON', "desc");
$this->db->limit($num);
$this->db->offset($offset);
return $this->db->get();
}
}