Hi,
While I was working on Field management, the default value for idResource triggered me an error because "idden" was not an acceptable value, so I think you might want to add an h or remove it.
See here at line 107: http://sourceforge.net/p/projectorria/code/HEAD/tree/branches/V5.0/projeqtor/model/PeriodicMeetingMain.php
In fact, idResource should not be hidden : it is responsible.
As the responsible is defined on Metting, it should also be defined on Periodic Meeting.
So attribute shoud be removes, not fixed.
Thanks for reporting.