using PHP & MYSQL on WordPress and Google Map API in order to retrieve data from MYSQL database and display markers with info windows on Google Map.
problem is that the map doesn't appear on the webpage, yet the SQL query is retrieving the required data.
what am i doing wrong and how to fix this Problem.
<?php
/*
Template Name: search info_location
*/
get_header();
?>
<!DOCTYPE html>
<html>
<head>
<title>Custom Markers</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=**********&callback=initMap">
</script>
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 600px;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<?php
// code for submit button action
global $wpdb, $site_name;
//variables that handle the retrieved data from mysql database based on the ID of the variable in HTML (select)
if(isset($_POST['query_submit']))
{
if(isset($_POST['site_name']))
{
$site_name=$_POST['site_name'];
}
else { $site_name=""; }
if(isset($_POST['owner_name']))
{
$owner_name=$_POST['owner_name'];
}
else { $owner_name=""; }
if(isset($_POST['Company_name']))
{
$company_name=$_POST['Company_name'];
}
else { $company_name=""; }
if(isset($_POST['Subcontractor_name']))
{
$Subcontractor_name=$_POST['Subcontractor_name'];
}
else { $Subcontractor_name="";}
// var_dump($site_name);
$sql = $wpdb->prepare("select i.siteID
, i.siteNAME
, i.equipmentTYPE
, c.latitude
, c.longitude
, c.height
, o.ownerNAME
, o.ownerCONTACT
, x.companyNAME
, y.subcontractorCOMPANY
, y.subcontractorNAME
, y.subcontractorCONTACT
from site_info i
LEFT
JOIN owner_info o
on i.ownerID = o.ownerID
LEFT
JOIN company_info x
on i.companyID = x.companyID
LEFT
JOIN subcontractor_info y
on i.subcontractorID = y.subcontractorID
LEFT JOIN site_coordinates2 c
on i.siteID=c.siteID
where
i.siteNAME = %s
AND
o.ownerNAME = %s
AND
x.companyNAME = %s
",$site_name,$owner_name,$company_name);
$query_submit =$wpdb->get_results($sql, OBJECT);
echo "<br>";
echo "<br>";
//echo $sql;
// var_dump($_POST['site_name']);
foreach ($query_submit as $obj) {
$obj->siteNAME;
$obj->ownerNAME;
$obj->companyNAME;
$obj->subcontractorNAME;
$obj->siteID;
$obj->equipmentTYPE;
$obj->latitude;
$obj->longitude;
$obj->height;
$obj->ownerCONTACT;
$obj->subcontractorCONTACT;
$obj->subcontractorCOMPANY;
}
// table that will dsiplay the results based on the user's selection //
echo "<table width='30%' ";
echo "<tr>";
echo "<td>Site Name</td>";
echo "<td>Owner Name</td>";
echo "<td>Company Name</td>";
echo "<td>Subcontractor Name</td>";
echo "<td>Site ID</td>";
echo "<td>Equipment Type</td>";
echo "<td> Lattitude</td>";
echo "<td>Longitude </td>";
echo "<td> Height</td>";
echo "<td> Owner Contact</td>";
echo "<td> Sub Contact</td>";
echo "<td> Sub company Name</td>";
echo "</tr>";
echo "<tr>";
echo "<td>".$obj->siteNAME."</td>";
echo "<td>".$obj->ownerNAME."</td>";
echo "<td>".$obj->companyNAME."</td>";
echo "<td>".$obj->subcontractorNAME."</td>";
echo "<td>".$obj->siteID."</td>";
echo "<td>".$obj->equipmentTYPE."</td>";
echo "<td>".$obj->latitude."</td>";
echo "<td>".$obj->longitude."</td>";
echo "<td>".$obj->height."</td>";
echo "<td>".$obj->ownerCONTACT."</td>";
echo "<td>".$obj->subcontractorCONTACT."</td>";
echo "<td>".$obj->subcontractorCOMPANY."</td>";
echo "</tr>";
echo "<tr>";
echo "<td>";
?>
<script>
var map,currentPopup;
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
zoom: 8,
center: new google.maps.LatLng(33.888630, 35.495480),
mapTypeId: 'roadmap'
});
var iconBase = 'https://maps.google.com/mapfiles/kml/shapes/';
var icons = {
parking: {
icon: iconBase + 'parking_lot_maps.png'
},
library: {
icon: iconBase + 'library_maps.png'
},
info: {
icon: iconBase + 'info-i_maps.png'
}
};
function addMarker(feature) {
var marker = new google.maps.Marker({
position: feature.position,
//icon: icons[feature.type].icon,
map: map
});
var popup = new google.maps.InfoWindow({
content: '<b>Site ID :</b> ' + feature.info +'<br></br>'
+ '<b> Site Name</b>' + feature.site_name +'<br></br>'
+ '<b>Coordinates :</b> '+ feature.position +'<br></br>'
+ '<b>height :</b> ' + feature.height,
maxWidth: 300
});
google.maps.event.addListener(marker, "click", function() {
if (currentPopup != null) {
currentPopup.close();
currentPopup = null;
}
popup.open(map, marker);
currentPopup = popup;
});
google.maps.event.addListener(popup, "closeclick", function() {
map.panTo(center);
currentPopup = null;
});
}
var features = [
<?php
$prependStr ="";
foreach( $wpdb->get_results("select c.siteID, c.latitude, c.longitude, c.height
, i.siteNAME
FROM site_coordinates2 c LEFT
JOIN site_info i
on c.siteID = i.siteID
where i.siteNAME = '".$site_name."'", OBJECT) as $key => $row) {
$latitude = $row->latitude;
$longitude = $row->longitude;
$siteid = $row->siteID;
$height = $row->height;
$siteName = $row->siteNAME;
echo $prependStr;
?>
{
position: new google.maps.LatLng(<?php echo $latitude; ?>, <?php echo $longitude; ?>),
info:'<?php echo $siteid;?>',
height: '<?php echo $height;?>',
site_name: <?php echo $siteName;?>',
}
<?php
$prependStr =",";
}
?>
];
for (var i = 0, feature; feature = features[i]; i++) {
addMarker(feature);
}
}
</script>
<?php
echo "</td>";
echo "</tr>";
echo "</table>";
}
?>
<!-- the below part of code work as it should --!>
<!--create dropdown list site names-->
<form method ="post" action ="" name="submit_form">
<table width="30%">
<tr>
<td>Site Name</td>
<td>Owner Name</td>
<td>Company Name</td>
<td>Subcontractor Name</td>
</tr>
<tr>
<td><select id="site_name" name = "site_name">
<?php
$query_site_name =$wpdb->get_results("select DISTINCT siteNAME from site_info");
foreach($query_site_name as $site_name)
{
// $site_name = (array)$site_name;
echo "<option value = '".$site_name ->siteNAME."'>". $site_name->siteNAME."</option>";
}
?>
<!--create dropdown list owner names-->
</select></td>
<td><select id="owner_name" name ="owner_name">
<?php
global $owner_name;
$query_owner_name =$wpdb->get_results ("select DISTINCT ownerNAME from owner_info");
foreach($query_owner_name as $owner_name)
{
// $owner_name = (array)$owner_name;
echo "<option value = '".$owner_name->ownerNAME."'>". $owner_name->ownerNAME."</option>";
}
?>
</select></td>
<!--create dropdown list Company names-->
</select></td>
<td><select id="Company_name" name ="Company_name">
<?php
global $Company_name;
$query_Company_name =$wpdb->get_results ("select DISTINCT companyNAME from company_info");
foreach($query_Company_name as $Company_name)
{
// $Company_name = (array)$Company_name;
echo "<option value = '".$Company_name->companyNAME."'>". $Company_name->companyNAME."</option>";
}
?>
</select></td>
<!--create dropdown list Subcontractor names-->
</select></td>
<td><select id="Subcontractor_name" name ="Subcontractor_name">
<?php
global $Subcontractor_name;
$query_Subcontractor_name =$wpdb->get_results ("select DISTINCT subcontractorNAME from subcontractor_info");
foreach($query_Subcontractor_name as $Subcontractor_name)
{
// $Subcontractor_name = (array)$Subcontractor_name;
echo "<option value = '".$Subcontractor_name->subcontractorNAME."}'>". $Subcontractor_name->subcontractorNAME."</option>";
}
?>
</select></td>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td>
<input type ="submit" name="query_submit" value ="Search" />
</td>
</tr>
</table>
</form>
</body>
</html>
<?php
get_footer();
?>