Deprecation: #98371 - Deprecated Fluid getters

See forge#98371

Description

Views in a Model-View-Controller (MVC) construct should be data sinks. Class \TYPO3\CMS\Fluid\View\StandaloneView violates this concept by providing some getXY() methods that allow fetching previously set state.

The Fluid class \TYPO3\CMS\Fluid\Core\Rendering\RenderingContext is the main object carried around within the rendering chain to keep track of state. It is the main data object used in view helpers.

As such, StandaloneView should not allow fetching state since it allows to be misused to park state, which is primarily a controller concern instead.

To enforce this pattern, the following methods have been marked as deprecated in TYPO3 Core v12 and will be removed in TYPO3 v13:

  • \TYPO3\CMS\Fluid\View\StandaloneView->getRequest()
  • \TYPO3\CMS\Fluid\View\StandaloneView->getFormat()
  • \TYPO3\CMS\Fluid\View\StandaloneView->getTemplatePathAndFilename()

Impact

Calling one of the above methods triggers a PHP E_USER_DEPRECATED level error.

Affected installations

Instances with extensions using one of the above methods.

Migration

Do not misuse StandaloneView as data source. Typically, controllers should handle and keep track of state like a PSR-7 Request and set or update view state.