Quite a few of the things I expected to be very difficult with CakePHP
have actually been "a breeze." Well, not a breeze, but doable. Anyway,
no fanfare. Here's how to integrate mapping with your application.
Add the data fields
I'd recommend fields called "latitude" and "longitude," of the type
FLOAT. You can use strings if you want, but that will eliminate some
cool possibilities in the future. And have a field called "location" or
something of that sort.
Add the input
Let's say that the *model* is called "Place" you could use this.
<?php echo $html->hidden('Place/latitude', array('id' =>
'PlaceLatitude')); ?>
<?php echo $html->hidden('Place/longitude', array('id' =>
'PlaceLongitude')); ?>
<?php echo $html->input('Place/name', array('class' =>
'primary_input')); ?>
<label for="PlaceZip">location</label>
<?php echo $html->input('Place/location'); ?>
<a class="secondmap" onclick="secondmap('PlaceLocation',
'PlaceLatitude', 'PlaceLongitude');" href="#">map</a>
Add the Action
Replace "YOUR_APP" with your AppId & put this in a controller (for
instance, Places)
<?php
function geocode($location)
{
// Allowed hostname (api.local and api.travel are also possible
here)
define ('HOSTNAME',
'http://api.local.yahoo.com/MapsService/V1/geocode?');
// Get the REST call path from the AJAX application
// Is it a POST or a GET?
//$path = ($_POST['yws_path']) ? $_POST['yws_path'] :
$_GET['yws_path'];
$url =
HOSTNAME.'appid='.'YOUR_APP'.'&location='.urlencode($location);
// Open the Curl session
$session = curl_init($url);
// If it's a POST, put the POST data in the body
if (isset($_POST['yws_path'])) {
$postvars = '';
while ($element = current($_POST)) {
$postvars .= key($_POST).'='.$element.'&';
next($_POST);
}
curl_setopt ($session, CURLOPT_POST, true);
curl_setopt ($session, CURLOPT_POSTFIELDS, $postvars);
}
// Don't return HTTP headers. Do return the contents of the call
curl_setopt($session, CURLOPT_HEADER, false);
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
// Make the call
$xml = curl_exec($session);
// The web service returns XML. Set the Content-Type
appropriately
header("Content-Type: text/xml");
echo $xml;
curl_close($session);
exit();
}
?>
h4. Add SecondMap & ThirdMap
Download the files
http://notes.we-run.com/file_download/1
thirdmap.js
http://notes.we-run.com/file_download/2
secondmap.js and drop them in webroot/js and include them in
layouts/default.thtml
http://www.google.com/apis/maps/signup.html
Get a Google Maps API Key
Output stuff.
In the "index" or "list" view, when you're outputting the list of
geotagged-things, use code like this:
<div id="map" style="height: 250px;">
<?php foreach ($your_places as $place): ?>
<?php if($place['Place']['latitude'] && $place['Place']['longitude']):
?>
<ul>
<li class="info"><?php echo $html->link($place['Place']['name'],
'/places/view/'.$place['Place']['id']); ?></li>
<li class="latitude"><?php echo $place['Place']['latitude']; ?></li>
<li class="longitude"><?php echo $place['Place']['longitude'];
?></li>
</ul>
<?php endif; ?>
<?php endforeach; ?>
</div>
<script type="text/javascript">
thirdMap('map');
</script>
of course, replace $place['Place'] with whatever your action is.
Hooray!
You should be all set. This will leave you with a quick, cross-browser
(screenreader compatible!) Google Maps solution.
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