..  include:: /Includes.rst.txt
..  index:: Events; ModifyDatabaseQueryForContentEvent
..  _ModifyDatabaseQueryForContentEvent:

==================================
ModifyDatabaseQueryForContentEvent
==================================

..  versionadded:: 12.0
    This event has been introduced which serves as a drop-in replacement for the removed
    :php:`$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS'][PageLayoutView::class]['modifyQuery']`
    hook.

Use the PSR-14 event :php:`\TYPO3\CMS\Backend\View\Event\ModifyDatabaseQueryForContentEvent`
to filter out certain content elements from being shown in the
:guilabel:`Page` module.

Example
=======

Registration of the event in your extension's :file:`Services.yaml`:

..  literalinclude:: _ModifyDatabaseQueryForContentEvent/_Services.yaml
    :language: yaml
    :caption: EXT:my_extension/Configuration/Services.yaml

Read :ref:`how to configure dependency injection in extensions <dependency-injection-in-extensions>`.

The corresponding event listener class:

..  literalinclude:: _ModifyDatabaseQueryForContentEvent/_MyEventListener.php
    :language: php
    :caption: EXT:my_extension/Classes/Backend/EventListener/MyEventListener.php

API
===

..  include:: /CodeSnippets/Events/Backend/ModifyDatabaseQueryForContentEvent.rst.txt