Breaking: #63846 - FormEngine refactoring¶
See Issue #63846
FormEngine is the core code structure that renders a record view in the backend. Basically everything that is displayed if elements from page or list module are edited is done by this code.
The main implementation was done thirteen years ago and was never touched on a deep code structure level until now. The according patches were huge and move the whole code to a new level. Stuff like that can not be done without impact on extensions that use this code.
TCA['aTable']['columns']['aField']['config']['wizards']have been removed and have no effect anymore.
TCA['aTable']['ctrl']['mainPalette']has been dropped and has no effect anymore.
mod.web_layout.tt_content.fieldOrderhas been dropped and has no effect anymore.
TCEFORM.aTable.aField.linkTitleToSelfhas been dropped and has no effect anymore.
Methods and properties from FormEngine are not available anymore. Classes like
InlineElement are gone.
New structures like a factory for elements and container have been introduced.
While not too many extensions in the wild hook or code with FormEngine, those that do will probably throw
fatal errors after upgrade. The hook
getSingleFieldClass has been removed altogether.
Changed user functions and hooks¶
- TCA: If format of type
noneis set to
user, the configured userFunc no longer gets an instance of
FormEngineas parent object, but an instance of
- TCA: Wizards configured as
userFuncnow receive a dummy
FormEngineobject with empty properties instead of the real instance.
- Hooks no longer get the key
getSingleFieldClasshas been dropped and no longer called.
Breaking interface changes¶
- The type hint to
$pObjhas been removed on the
DatabaseFileIconsHookInterface. This hook is no longer given an instance of
InlineElementHookInterfacehas been removed. Classes that implement this interface will no longer get
For most instances, the overall impact is rather low or they are not affected at all. Some very rarely used TCA and TSconfig options have been dropped, those will do no harm. Instances are usually only affected if loaded extensions do fancy stuff with FormEngine with hooks or other related code.
TYPO3 CMS 7 installations with extensions using or hooking into FormEngine and its related classes are
likely to break. TCA elements of type user may break. Instances using these parts will quickly show
fatal errors at testing. It may help to search for
t3lib_tceForms below the
directory to find affected instances.
Adapt the extension code. The majority of methods were for internal core usage only, but still public. Please use the existing API to solve needs on FormEngine.