68 lines
2.2 KiB
ReStructuredText
68 lines
2.2 KiB
ReStructuredText
.. include:: /Includes.rst.txt
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.. _deprecation-99615-1674056024:
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=================================================
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Deprecation: #99615 - GeneralUtility::_GPmerged()
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=================================================
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See :issue:`99615`
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Description
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===========
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The method :php:`\TYPO3\CMS\Core\Utility\GeneralUtility::_GPmerged()` has
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been marked as deprecated and should not be used any longer.
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Modern code should access `GET` and `POST` data from the PSR-7
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:php:`\Psr\Http\Message\ServerRequestInterface`, and should avoid accessing
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super-globals :php:`$_GET` and :php:`$_POST` directly. This helps creating
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controller classes with a clean architecture. Some
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:php:`\TYPO3\CMS\Core\Utility\GeneralUtility` related helper methods like
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:php:`_GPmerged()` violate this, using them is considered a technical debt.
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They are being phased out.
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Impact
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======
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Calling the method will raise a deprecation level log error and will
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stop working with TYPO3 v13.
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Affected installations
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======================
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Instances with extensions using :php:`GeneralUtility::_GPmerged()` are affected.
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The extension scanner will find usages with a strong match.
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Migration
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=========
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:php:`GeneralUtility::_GPmerged()` is a helper method that retrieves
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request parameters and returns the value, while `POST` parameters take
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precedence over `GET` parameters, if both exist.
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The same result can be achieved by retrieving arguments from the request object.
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An instance of the PSR-7 :php:`ServerRequestInterface` is handed over to
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controllers by TYPO3 Core's PSR-15 :php:`\TYPO3\CMS\Core\Http\RequestHandlerInterface`
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and middleware implementations, and is available in various related scopes
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like the frontend :php:`\TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer`.
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Typical code:
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.. code-block:: php
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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use TYPO3\CMS\Core\Utility\ArrayUtility;
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// Before
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$getMergedWithPost = GeneralUtility::_GPmerged('tx_scheduler');
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// After
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$getMergedWithPost = $request->getQueryParams()['tx_scheduler'];
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ArrayUtility::mergeRecursiveWithOverrule($getMergedWithPost, $request->getParsedBody()['tx_scheduler']);
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.. index:: Backend, PHP-API, FullyScanned, ext:backend
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