TranslateViewHelper.php

<?php
namespace AWESOME\Translation\ViewHelpers;

/*                                                                        *
 * This script belongs to the TYPO3 Flow package "Flowpack.Expose".       *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License, either version 3   *
 * of the License, or (at your option) any later version.                 *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

use AWESOME\Translation\Service\TranslationService;
use Doctrine\ORM\Mapping as ORM;
use TYPO3\Flow\Annotations as Flow;
use TYPO3\Fluid\Core\ViewHelper\AbstractViewHelper;

/**
 */
class TranslateViewHelper extends AbstractViewHelper {

	/**
	 * NOTE: This property has been introduced via code migration to ensure backwards-compatibility.
	 * @see AbstractViewHelper::isOutputEscapingEnabled()
	 * @var boolean
	 */
	protected $escapeOutput = FALSE;

	/**
	 * @var TranslationService
	 * @Flow\Inject
	 */
	protected $translationService;

	/**
	 *
	 * @param string $contextPath
	 * @param string $source
	 * @param string $sourceLanguage
	 * @param string $as
	 * @return string Rendered string
	 * @api
	 */
	public function render($contextPath, $source, $sourceLanguage = NULL, $as = NULL) {
		$translation = $this->translationService->getTranslation($contextPath, $source);
		if ($as === NULL) {
			return $translation;
		}

		$templateVariableContainer = $this->renderingContext->getTemplateVariableContainer();
		$templateVariableContainer->add($as, $translation);
		$output = $this->renderChildren();
		$templateVariableContainer->remove($as);
		return $output;
	}
}

?>