public function handleSchedUpdate(SS_HTTPRequest $r)
 {
     if (!Member::currentUser()) {
         return $this->httpError(403);
     }
     $schedID = $r->param('SchedID');
     $presentation = VideoPresentation::get_by_event_key($schedID);
     if (!$presentation) {
         $presentation = VideoPresentation::create(array('event_key' => $schedID));
     }
     // Only allow one writeable property here
     if ($youTube = $r->postVar('youtubeid')) {
         $presentation->YouTubeID = $youTube;
         $presentation->write();
         return new SS_HTTPResponse("OK", 200);
     }
     return $this->httpError(400, "You must provide a youtubeid parameter in the POST request");
 }