Symfony\Component\Form\Form::addError PHP Метод

    public function addError(FormError $error)
    {
        if ($this->parent && $this->errorBubbling) {
            $this->parent->addError($error);
        } else {
            $this->errors[] = $error;
        }

        return $this;
    }

 public static function handleFlashErrors(SymfonyForm $form, $identifier)
 {
     $errors = self::$app['flashbag']->get('form.' . $identifier . '.errors');
     foreach ($errors as $error) {
         $form->addError(new FormError($error));
     }
 }