BeforeModuleCreationEvent

The PSR-14 event \TYPO3\CMS\Backend\Module\BeforeModuleCreationEvent allows extension authors to manipulate the module configuration, before it is used to create and register the module.

Example

Registration of the event listener in the extension's Services.yaml:

EXT:my_extension/Configuration/Services.yaml
services:
  # Place here the default dependency injection configuration

  MyVendor\MyExtension\Backend\EventListener\MyEventListener:
    tags:
      - name: event.listener
        identifier: 'my-extension/backend/modify-module-icon'
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Read how to configure dependency injection in extensions.

The corresponding event listener class:

EXT:my_extension/Classes/Backend/EventListener/MyEventListener.php
<?php

declare(strict_types=1);

namespace MyVendor\MyExtension\Backend\EventListener;

use TYPO3\CMS\Backend\Module\BeforeModuleCreationEvent;

final class MyEventListener
{
    public function __invoke(BeforeModuleCreationEvent $event): void
    {
        // Change module icon of page module
        if ($event->getIdentifier() === 'web_layout') {
            $event->setConfigurationValue('iconIdentifier', 'my-custom-icon-identifier');
        }
    }
}
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API

class BeforeModuleCreationEvent
Fully qualified name
\TYPO3\CMS\Backend\Module\BeforeModuleCreationEvent

Listeners can adjust the module configuration before the module gets created and registered

getIdentifier ( )
Returns
string
getConfiguration ( )
Returns
array
setConfiguration ( array $configuration)
param $configuration

the configuration

hasConfigurationValue ( string $key)
param $key

the key

Returns
bool
getConfigurationValue ( string $key, ?mixed $default = NULL)
param $key

the key

param $default

the default, default: NULL

Returns
?mixed
setConfigurationValue ( string $key, ?mixed $value)
param $key

the key

param $value

the value