[TYPO3-core] TYPO3 6.2 - TCA not loading fully

[Peter Niederlag]

Hi Artur,

in general this is probably more a support-type of request and should
rather be targeted into a different list/forum.
http://typo3.org/support/mailing-lists/rules-guidelines/

We had recently seen a problem with legacy extensions that add custom
content elements (via ext_tables.php, old way of TCA modification) and
gridelements (using Configuration/TCA/Overrides/xxxx.php, new way of TCA
modifications).

The overrides are processed first and results will be cached. Processing
ext_tables.php will happen afterwards.

Not sure, but imho this is a pitfall when extensions are shifting
indepently from old to new style of TCA modifications.

Deactivating/Activating extensions used to change the load order (and
probably still does), which does change the processing order of TCA
adaptions. The load-order of extensions is yet another potential cause
of troubles.

hth,
greets,
Peter

On 05.05.2015 13:43, Artur Cichosz wrote:
> Hi,
> 
> over the past months we experienced a strange problem related with TCA
> in two different projects.
> Both projects were TYPO3 6.2 based and in both we used "news" extension.
> 
> In the first project, at some point the TCA configuration of the "news"
> extension disappeared. Surprisingly only in one instance of the project.
> The same fully identical (all files and database) instance on another
> server was OK.
> 
> Clearing all caches, including deleting typo3temp/Cache/*, did not help.
> Deinstalling all other local extension did not help.
> Deinstalling "news" and reinstalling again did not help.
> 
> The only help was deinstalling news using extension manager, deleting
> news using extension manager and reinstalling news from TER using
> extension manager. TCA was complete again.
> 
> Today we got the same problem with TYPO3 6.2.12, news 3.1.0 and
> static_info_tables 6.2.0. First the TCA of static_info_tables
> disappeared, the fix was the same as above in case of news.
> Then TCA of "news" disappeared as well and the fix worked here again.
> 
> The problems are gone but I would like to know why that happens. You
> probably won't be able to reproduce the issue directly so I wil try to
> debug it on my own but before I do it I would like to ask you Core Guys
> to explain me a little what is the difference between the following cases:
> 1) simply deinstalling and reinstalling an extension using extension
> manager
> 2) deinstalling + deleting an extension using extension manager and
> reinstalling from TER using extension manager
> 
> Which data will be deleted additionally in case 2) which does not happen
> in case 1)
> 
> Additionally give me please some hints how TCA is processed (major
> classes involved etc.) and cached so I can debug it quicker.
> 
> Thx
> 
> 
> _______________________________________________
> Before posting to this list, please have a look to the posting rules
> on the following websites:
> 
> http://typo3.org/teams/core/core-mailinglist-rules/
> http://typo3.org/development/bug-fixing/diff-and-patch/
> _______________________________________________
> TYPO3-team-core mailing list
> TYPO3-team-core at lists.typo3.org
> http://lists.typo3.org/cgi-bin/mailman/listinfo/typo3-team-core