SAAS-1063: REST API for podcasts

Hierarchy routing is working
Basic implentation of podcast INDEX and POST actions done

airtime_mvc/application/services/PodcastService.php

@@ -0,0 +1,34 @@
+<?php
+
+class Application_Service_PodcastService
+{
+    /**
+     * There is maximum of 50 podcasts allowed in the library - to limit
+     * resource consumption. This function returns true if the podcast
+     * limit has been reached.
+     *
+     * @return bool
+     */
+    public static function podcastLimitReached()
+    {
+        if (PodcastQuery::create()->count() >= 50) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Returns true if the given podcast URL is valid.
+     *
+     * @param $podcastUrl String containing the podcast feed URL
+     *
+     * @return bool
+     */
+    public static function validatePodcastUrl($podcastUrl)
+    {
+        //TODO
+        return true;
+    }
+
+}