When you try to use calendar.getEvent function on teacher's absence event it will return empty data, because the teacher's absence has another url on librus than anothers.
More specifically: Teacher's absence is using: 'terminarz/szczegoly_wolne/id' instead of 'terminarz/szczegoly/id'
When you try to use calendar.getEvent function on teacher's absence event it will return empty data, because the teacher's absence has another url on librus than anothers.
More specifically: Teacher's absence is using: 'terminarz/szczegoly_wolne/id' instead of 'terminarz/szczegoly/id'