/**
  * Undo changes made in representation editor to representation media
  *
  */
 public function RevertMedia()
 {
     list($vn_object_id, $t_object) = $this->_initView();
     $pn_representation_id = $this->request->getParameter('representation_id', pInteger);
     if (!$vn_object_id) {
         $vn_object_id = 0;
     }
     $t_rep = new ca_object_representations($pn_representation_id);
     if ($t_rep->removeMediaTransformations('media')) {
         $va_response = array('action' => 'revert', 'status' => 0);
     } else {
         $va_response = array('action' => 'revert', 'status' => 10);
     }
     $this->view->setVar('response', $va_response);
     $this->render('object_representation_process_media_json.php');
 }