[TASK] Avoid caching for fluid string parsing

Author: derhansen

Classes/Security/NullFluidCache.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the Extension "sf_event_mgt" for TYPO3 CMS.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ */
+
+namespace DERHANSEN\SfEventMgt\Security;
+
+use TYPO3Fluid\Fluid\Core\Cache\FluidCacheInterface;
+use TYPO3Fluid\Fluid\Core\Cache\FluidCacheWarmerInterface;
+use TYPO3Fluid\Fluid\Core\Cache\StandardCacheWarmer;
+
+/**
+ * A no-op Fluid cache implementation that never stores or returns compiled templates.
+ * Used in parseStringFluid() to ensure templates are always parsed from source,
+ * so that AllowedViewHelperInvoker is invoked on every render.
+ */
+class NullFluidCache implements FluidCacheInterface
+{
+    public function get(string $name): mixed
+    {
+        return null;
+    }
+
+    public function set(string $name, mixed $value): void {}
+
+    public function flush(?string $name = null): void {}
+
+    public function getCacheWarmer(): FluidCacheWarmerInterface
+    {
+        return new StandardCacheWarmer();
+    }
+}

Classes/Service/FluidRenderingService.php

@@ -12,6 +12,7 @@
 namespace DERHANSEN\SfEventMgt\Service;
 
 use DERHANSEN\SfEventMgt\Security\AllowedViewHelperInvoker;
+use DERHANSEN\SfEventMgt\Security\NullFluidCache;
 use TYPO3\CMS\Core\Http\ApplicationType;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Core\View\ViewFactoryData;
@@ -83,6 +84,7 @@ public function parseString(
                 1727434457
             );
         }
+        $view->getRenderingContext()->setCache(new NullFluidCache());
         $view->getRenderingContext()->setViewHelperInvoker(new AllowedViewHelperInvoker());
         $view->getRenderingContext()->setTemplateProcessors([
             new NamespaceDetectionTemplateProcessor(),