SAAS-157: Automated metrics: gather info about soundcloud usage

- put DB query inside try-catch

airtime_mvc/application/models/StoredFile.php

@@ -942,6 +942,7 @@ Logging::log("getting media! - 2");
      */
     public static function getSoundCloudUploads()
     {
+        try {
     	    $con = Propel::getConnection();
     	
     	    $sql = "SELECT soundcloud_id as id, soundcloud_upload_time"
@@ -951,6 +952,11 @@ Logging::log("getting media! - 2");
                 
             $rows = $con->query($sql)->fetchAll();
             return count($rows);
+        } catch (Exception $e) {
+            header('HTTP/1.0 503 Service Unavailable');
+            Logging::log("Could not connect to database.");
+            exit;            
+        }
         
     }