Add TranslateViewHelper

Classes/ViewHelpers/TranslateViewHelper.php

@@ -0,0 +1,27 @@
+<?php
+declare(strict_types=1);
+namespace Slub\LisztBibliography\ViewHelpers;
+
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+
+final class TranslateViewHelper extends AbstractViewHelper
+{
+    public function initializeArguments(): void
+    {
+        $this->registerArgument('key', 'string', 'the key wich has to be translated', true);
+    }
+
+    public static function renderStatic(
+        array $arguments,
+        \Closure $renderChildrenClosure,
+        RenderingContextInterface $renderingContext)
+    : ?array
+    {
+        $extConf = GeneralUtility::makeInstance(ExtensionConfiguration::class)->get('liszt_bibliography');
+
+        return GeneralUtility::makeInstanceService(SearchService::class)->
+            get($arguments['key'], $extConf['elasticLocaleIndexName']);
+    }
+}