contao/core — pull request #4624 by Toflar (2012-08-10 16:32:42+00:00)
Title: Check whether skipFramework exists in install tool

I've tried to update a 2.9 installation to version 3 RC1 but the install tool fails. I am able to reproduce it as follows (using the old localconfig.php):

1. Use the Contao 3 files and import a 2.9 database
2. Call the install.php
3. Enter the install tool password
4. It tells me that the database is not up-to-date --> execute 2.10 update
5. It tells me that the database is not up-to-date again --> execute step 1 of the Contao 3 update

> Fatal error: Uncaught exception Exception with message Query error: Unknown column 'skipFramework' in 'where clause' (UPDATE `tl_layout` SET `framework`='' WHERE skipFramework=1) thrown in /system/modules/core/library/Contao/Database/Statement.php on line 317

I think `skipFramework` has been added in Contao 2.11 and so updating from < 2.11 fails.
The proposed change fixes this issue :-)