Deprecation: #100071 - Magic repository findBy() methods

[sabbelasichon]

Deprecation: #100071 - Magic repository findBy() methods

https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/12.3/Deprecation-100071-MagicRepositoryFindByMethods.html
.. include:: /Includes.rst.txt

.. _deprecation-100071-1677853787:

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Deprecation: #100071 - Magic repository findBy() methods

See :issue:100071

Description

Extbase repositories come with a magic :php:__call() method to allow calling
the following methods without implementing them:

• :php:findBy[PropertyName]($propertyValue)
• :php:findOneBy[PropertyName]($propertyValue)
• :php:countBy[PropertyName]($propertyValue)

These have now been marked as deprecated, as they are "magic", meaning
that proper IDE support is not possible, and other PHP-related tool
functionality such as PhpStorm.

In addition, it is not possible for Extbase repositories
to build their own magic method functionality as the logic is already
in use.

Impact

As these methods are widely used in almost all Extbase-based extensions,
they are marked as deprecated in TYPO3 v12, but will only trigger a deprecation
notice in TYPO3 v13, as they will be removed in TYPO3 v14.

This way, migration towards the new API methods can be made without
pressure.

Affected installations

All installations with third-party extensions that use those magic methods.

Migration

A new set of methods without all the downsides have been added:

• :php:findBy(array $criteria, ...): QueryResultInterface
• :php:findOneBy(array $criteria, ...):object|null
• :php:count(array $criteria, ...): int

The naming of the methods follows those of doctrine/orm and only
:php:count() differs from the formerly :php:countBy(). While all magic
methods only allow for a single comparison (propertyName = propertyValue),
those methods allow for multiple comparisons, called constraints.

findBy[PropertyName]($propertyValue) can be replaced with a call to findBy:

.. code-block:: php

$this->blogRepository->findBy(['propertyName' => $propertyValue]);

findOneBy[PropertyName]($propertyValue) can be replaced with a call to findOneBy:

.. code-block:: php

$this->blogRepository->findOneBy(['propertyName' => $propertyValue]);

countBy[PropertyName]($propertyValue) can be replaced with a call to count:

.. code-block:: php

$this->blogRepository->count(['propertyName' => $propertyValue]);

.. index:: PHP-API, NotScanned, ext:extbase