gistfile1.txt

/**
   * A special action which is called if the originally intended action could
	 * not be called, for example if the arguments were not valid.
	 *
	 * The default implementation sets a flash message, request errors and forwards back
	 * to the originating action. This is suitable for most actions dealing with form input.
	 *
	 * @return string
	 * @api
	 */
	protected function errorAction() {

		/**
		 * do we have validation errors then we set special messages.
		 * otherwise use the common flash message
		 **/
		if ($this->arguments->getValidationResults()->hasErrors()) {
			$errorFlashMessage = $this->getValidationErrorFlashMessage();
			$this->flashMessageContainer->addMessage($errorFlashMessage);
		} else {
			$errorFlashMessage = $this->getErrorFlashMessage();
			$this->flashMessageContainer->addMessage($errorFlashMessage);
		}

		$referringRequest = $this->request->getReferringRequest();

		if ($referringRequest !== null) {
			$subPackageKey = $referringRequest->getControllerSubpackageKey();
			if ($subPackageKey !== null) {
				rtrim($packageAndSubpackageKey = $referringRequest->getControllerPackageKey() . '\\' . $referringRequest->getControllerSubpackageKey(), '\\');
			} else {
				$packageAndSubpackageKey = $referringRequest->getControllerPackageKey();
			}
			$argumentsForNextController = $referringRequest->getArguments();
			$argumentsForNextController['__submittedArguments'] = $this->request->getArguments();
			$argumentsForNextController['__submittedArgumentValidationResults'] = $this->arguments->getValidationResults();

			$this->forward($referringRequest->getControllerActionName(), $referringRequest->getControllerName(), $packageAndSubpackageKey, $argumentsForNextController);
		}



		$message = $this->getErrorFlashMessage()->render() . PHP_EOL;
		foreach ($this->arguments->getValidationResults()->getFlattenedErrors() as $propertyPath => $errors) {
			foreach ($errors as $error) {
				$message .= 'Error for ' . $propertyPath . ':  ' . $error->render() . PHP_EOL;
			}
		}

		return $message;
	}

	/**
	 * A template method for displaying custom error flash messages.
	 * @return \TYPO3\Flow\Error\Message
	 */
	protected function getErrorFlashMessage() {
		return new \TYPO3\Flow\Error\Error('An error occurred while trying to call %1$s->%2$s()', 1360570466, array(get_class($this), $this->actionMethodName),'Error');
	}

	/**
	 * A template method for displaying custom validation flash messages.
	 * @return \TYPO3\Flow\Error\Error
	 */
	protected function getValidationErrorFlashMessage() {
		return new \TYPO3\Flow\Error\Error('Some validation failed. Please check your input data', 1360570467, array(get_class($this), $this->actionMethodName),'Validation Error');
	}