public function updateRegistryPublishInfo($fileId, $response)
 {
     $identity = Zend_Auth::getInstance()->getIdentity();
     $serialisedResponse = serialize($response);
     $data['response'] = $serialisedResponse;
     $this->update($data, array('file_id = ?' => $fileId));
     // Update published data.
     $modelPublish = new Model_Published();
     $modelPublish->markAsPushedToRegistry($fileId);
 }