public function createAction(Request $request)
 {
     $object = $this->crud->getNewInstance();
     $form = $this->crud->getObjectForm($object);
     $form->handleRequest($request);
     if ($form->isValid()) {
         $createdObject = $this->crud->createObject($object);
         if ($createdObject && ($redirect = $this->redirectTo($createdObject))) {
             return $redirect;
         }
     }
     $view = $form->createView();
     $this->get('twig')->getExtension('form')->renderer->setTheme($view, $this->crud->getTemplate('form_theme'));
     return $this->render($this->crud->getTemplate('create'), array('action' => 'create', 'crud' => $this->crud, 'form' => $view, 'object' => $object));
 }