BeforeFormIsCreatedEvent

New in version 14.0

The event BeforeFormIsCreatedEvent serves as a direct replacement for the removed hook $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/form']['beforeFormCreate'].

The event BeforeFormIsCreatedEvent allows a to modify a form before it gets created. The event is dispatched just right before a new form is created in the backend.

Example

EXT:my_extension/Classes/EventListener/MyEventListener.php

<?php

declare(strict_types=1);

namespace MyVendor\MyExtension\EventListener;

use TYPO3\CMS\Core\Attribute\AsEventListener;
use TYPO3\CMS\Form\Event\BeforeFormIsCreatedEvent;

#[AsEventListener(
    identifier: 'my-extension/before-form-is-created',
)]
final readonly class MyEventListener
{
    public function __invoke(BeforeFormIsCreatedEvent $event): void
    {
        $event->form['label'] = 'foo';
    }
}

New in version 13.0

The PHP attribute \TYPO3\CMS\Core\Attribute\AsEventListener has been introduced to tag a PHP class as an event listener. Alternatively, you can also register an event listener via the Configuration/Services.yaml file. Have a look into the section Implementing an event listener in your extension.

API

class BeforeFormIsCreatedEvent

Fully qualified name: \TYPO3\CMS\Form\Event\BeforeFormIsCreatedEvent

Listeners to this Event will be able to modify the form definition and persistence identifier before a new form is created.

public formPersistenceIdentifier

public form