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cms-core/Documentation/Changelog/12.0/Deprecation-97544-PreviewURIGenerationRelatedFunctionalityInBackendUtility.rst
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.. include:: /Includes.rst.txt
.. _deprecation-97544:
====================================================================================
Deprecation: #97544 - Preview URI Generation related functionality in BackendUtility
====================================================================================
See :issue:`97544`
Description
===========
With :issue:`91123` the :php:`PreviewUriBuilder` has been introduced.
To further streamline any preview URI generation code, the related
functionality has now been fully integrated into :php:`PreviewUriBuilder`
along with two new PSR-14 events. Therefore, the previously used
:php:`BackendUtility::getPreviewUrl()` method, as well as the related hook
:php:`$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_befunc.php']['viewOnClickClass']`,
has been deprecated.
Impact
======
Using the utility method or registering hooks will trigger a PHP :php:`E_USER_DEPRECATED` error.
The extension scanner will detect usages.
Affected installations
======================
All installations using the utility method or the hook in custom extensions.
Migration
=========
Migrate any usage of :php:`BackendUtility::getPreviewUrl()` to
:php:`PreviewUriBuilder->buildUri()`.
Replace any :php:`$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_befunc.php']['viewOnClickClass']`
hook by using the new :doc:`PSR-14 events <../12.0/Feature-97544-PSR-14EventsForModifyingPreviewURIs>`.
The :php:`BeforePagePreviewUriGeneratedEvent` can be used as replacement for
the hooks' :php:`preProcess()` method, while the :php:`AfterPagePreviewUriGeneratedEvent`
can be used as replacement for the hooks' :php:`postProcess()` method.
.. index:: Backend, Frontend, PHP-API, FullyScanned, ext:backend