[TYPO3-core] RFC #9268: TCA is not loaded in FE when config cache is disabled

[Dmitry Dulepov [typo3]]

Hi!

This is SVN patch request.

Type: bug

Branches: 4.1, 4.2, trunk

BT reference: http://bugs.typo3.org/view.php?id=9268

Problem: if extCache is set to 0 in Install tool and you install a new extension, its tables will not be available to TYPO3 until you "clear all cache". The problem is that tslib_fe ignores extCache completely and always tries to fetch cached TCA.

How to reproduce:
- set extCache to 0 in Install tool
- get irfaq from TER
- put irfaq on page and add its TS to main TS
- navigate to page => fatal error because TCA is not loaded

Solution: use cache for loading/storing TCA in tslib_fe only if extCache is not set to 0.

-- 
Dmitry Dulepov
TYPO3 Core team
My TYPO3 book: http://www.packtpub.com/typo3-extension-development/book
In the blog: http://typo3bloke.net/pages/book-reviews/presentation-zen-by-garr-reynolds/
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