[TYPO3-shop] tt_products disabling typo3 when table, fh_library not present

[Franz Holzinger]

Hello Robert,

> Bad practice, I know, but this brought down my complete Typo3 frontend
> ('TYPO3 Fatal Error: Extension key "table" was NOT loaded!
> (t3lib_extMgm::extPath)'). The next bad move was to delete the cache
> files in typo3conf/ in a desperate brain-dead attempt to restore the FE.
> Which brought down the BE as well. The symptoms are described in a
> posting by Bill Alexy from 30.09.2005. I spent hours to get the BE and
> FE online again.

> 
> I assumed that tt_products would refuse to be installed/updated at all
> without the depending extensions being installed (the EM usually gives
> an error when extension dependencies aren't resolved), but in this case,
> this 'safety net' didn't work (perhaps because tt_products was already
> installed?).
> Could such a checking mechanism be implemented for tt_products?
> 
This severe bug has been in bugtracker for a long time already.
http://bugs.typo3.org/view.php?id=1807

I would have to do some more changes in tt_products for this, because it
inherits as well from the fh_library.
A correction in TYPO3 Core would make more sense, because this error
will occur for every extension which adds a new dependant extension.

In the future there shall be a wiki link in the EM. Before someone
installs an extension he shall go to the wiki page and read all warnings.

You can propose a new entry in the bugtracker to write a restauration
tool. The user clicks a button and TYPO3 is restored to a stable version
of the last backup state.


- Franz