added support for root domain api keys (ie 'example.com' instead of 'www.local.dev.example.com'). As mentionned on gmap signup page, this is 'usually the best practice, as it will work for all subdomains and directories'

Author: jlirochon

lib/GMapClient.class.php

@@ -151,10 +151,24 @@ public static function getAPIKeyByDomain($domain, $api_keys = null)
       $api_keys = sfConfig::get('app_google_maps_api_keys');
     }
 
+    // find root domain (www.local.dev.example.com -> example.com)
+    $rootDomain = null;
+    $tokens = explode('.', $domain);
+    if (sizeof($tokens) > 2)
+    {
+      $rootDomain = implode('.', array_slice($tokens, -2, 2));
+    }
+
     if (is_array($api_keys) && array_key_exists($domain, $api_keys))
     {
+      // exact domain match (ex: www.local.dev.example.com)
       $api_key = $api_keys[$domain];
     }
+    elseif ($rootDomain !== null && is_array($api_keys) && array_key_exists($rootDomain, $api_keys))
+    {
+      // root domain match (ex: example.com)
+      $api_key = $api_keys[$rootDomain];
+    }
     else
     {
       if (is_array($api_keys) && array_key_exists('default', $api_keys))