[TYPO3-dev] Deprecation strategy for BE viewhelpers

[François Suter]

Hi Frans,

> I ask this
> because TYPO3\CMS\Extensionmanager\ViewHelpers\Be\ContainerViewHelper is
> deleted in master (https://review.typo3.org/#/c/22063/).
> ext:media uses this one and now breaks in TYPO36.2.
>
> Shouldn't the viewhelper be deprecated and not deleted so extension
> developed for6.1  still work in6.2?

In general I would say yes, definitely, as other APIs. In this case I 
(speaking for myself, as it was my patch, although it was validated by 
quite a few eyes) really didn't expect an extension to use such a view 
helper. IMO it is bad design on the part of the media extension, 
although I can guess why it used it: it needed to load several JS or CSS 
files, something which was not possible until now with the standard BE 
container VH.

I faced the need myself for one of my extensions (external_import) and I 
copied the view helper inside my extension, as it seemed very dangerous 
to me to rely on another extension's view helper (especially since it's 
not one meant to provide view helpers). I would strongly advise "media" 
to do the same rather than bringing back the EM's view helper.

Cheers

-- 

Francois Suter

Work: Cobweb Development Sarl - http://www.cobweb.ch

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