public function add(AbstractController $controller, $redirect)
 {
     try {
         $fo = FOFactory::build('comment');
         if (!$fo->isSent()) {
             $this->redirectToCaller($redirect);
         }
         $this->model->add($fo, $fo->getType(), $fo->getId());
         $this->redirectToCaller($redirect);
     } catch (FormValidationException $e) {
         $this->values->error = Bundle::get('form.validation.invalid.value', $e->getMessage());
         $controller->setAction($redirect);
     }
 }