TYPO3 v15 dev-main snapshot ()

Documentation/D/Events/_codesnippets/_MyFormEventListener.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MyVendor\MyExtension\EventListener;
+
+use TYPO3\CMS\Core\Attribute\AsEventListener;
+use TYPO3\CMS\Form\Event\BeforeFormIsSavedEvent;
+
+#[AsEventListener(
+    identifier: 'my-extension/before-form-is-saved',
+)]
+final readonly class MyFormEventListener
+{
+    public function __invoke(BeforeFormIsSavedEvent $event): void
+    {
+        // Enrich the form definition before it is persisted
+        $event->form['renderingOptions']['myCustomOption'] = 'value';
+    }
+}