Errors with cache from Issue #455 for course overview

[olio2]

The cache from #455 gives errors on our System:

Sometimes this error: [22-May-2024 14:20:09 Europe/Berlin] PDOException: SQLSTATE[42000]: Syntax error or access violation: 1103 Incorrect table name '' in /home/studip-dev/studip-5-dev3/studip-5.2.6/lib/classes/StudipPDOStatement.php:156 Stack trace:

0 /home/studip-dev/studip-5-dev3/studip-5.2.6/lib/classes/StudipPDOStatement.php(156): PDOStatement->execute()

1 /home/studip-dev/studip-5-dev3/studip-5.2.6/lib/models/SimpleORMap.class.php(575): StudipPDOStatement->execute()

2 /home/studip-dev/studip-5-dev3/studip-5.2.6/public/plugins_packages/elan-ev/MeetingPlugin/app/models/MeetingCourse.php(60): SimpleORMap::findBySQL()

3 /home/studip-dev/studip-5-dev3/studip-5.2.6/public/plugins_packages/elan-ev/MeetingPlugin/MeetingPlugin.php(175): ElanEv\Model\MeetingCourse::findByCourseId()

4 /home/studip-dev/studip-5-dev3/studip-5.2.6/lib/classes/MyRealmModel.php(487): MeetingPlugin->getIconNavigation()

and sometimes this: Exception: Serialization of 'Closure' is not allowed in /home/studip-dev/studip-5-dev3/studip-5.2.6/public/plugins_packages/elan-ev/MeetingPlugin/MeetingPlugin.php:175

It always has one of those error. Only if the cache part is disabled the Plugin works again.

[ferishili]

Please state the following:

• PHP Version
• Stud.IP Version

[olio2]

Please state the following:

• PHP Version
• Stud.IP Version

PHP 7.4.33 Stud.IP 5.2.6

[ferishili]

Sorry for the delay, I will label this as a bug for now, until further investigation, to make it as a priority to be fixed in the next release!

[noackorama]

relates to https://gitlab.studip.de/studip/studip/-/issues/1473