new export template (#3082)

src/Twig/TwigRendererTrait.php

@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Twig;
+
+use Symfony\Bridge\Twig\Extension\TranslationExtension;
+use Symfony\Contracts\Translation\LocaleAwareInterface;
+use Twig\Environment;
+
+/**
+ * @internal
+ */
+trait TwigRendererTrait
+{
+    protected function renderTwigTemplateWithLanguage(Environment $twig, string $template, array $options = [], ?string $language = null, ?string $formatLocale = null): string
+    {
+        $previousTranslation = null;
+        $previousFormatLocale = null;
+
+        if ($language !== null) {
+            $previousTranslation = $this->switchTranslationLocale($twig, $language);
+        }
+        if ($formatLocale !== null) {
+            $previousFormatLocale = $this->switchFormatLocale($twig, $formatLocale);
+        }
+
+        $content = $twig->render($template, $options);
+
+        if ($previousTranslation !== null) {
+            $this->switchTranslationLocale($twig, $previousTranslation);
+        }
+        if ($previousFormatLocale !== null) {
+            $this->switchFormatLocale($twig, $previousFormatLocale);
+        }
+
+        return $content;
+    }
+
+    protected function switchTranslationLocale(Environment $twig, string $language): string
+    {
+        /** @var TranslationExtension $extension */
+        $extension = $twig->getExtension(TranslationExtension::class);
+        /** @var LocaleAwareInterface $translator */
+        $translator = $extension->getTranslator();
+        $previous = $translator->getLocale();
+        $translator->setLocale($language);
+
+        return $previous;
+    }
+
+    protected function switchFormatLocale(Environment $twig, string $language): string
+    {
+        /** @var LocaleFormatExtensions $extension */
+        $extension = $twig->getExtension(LocaleFormatExtensions::class);
+        $previous = $extension->getLocale();
+        $extension->setLocale($language);
+
+        return $previous;
+    }
+}