/**
  * Displays a form to edit an existing entity.
  *
  * @Route("/{id}/edit", name="admin_activity_edit", options={"expose"=true})
  * @Method("GET")
  * @Template("AdminBundle:Activity:form.html.twig")
  */
 public function editAction(Request $request, $id)
 {
     return parent::editAction($request, $id);
 }