Resolve "Creating an event without specifying time crashes the request"
Closes #609 (closed)
Previous behaviour
Steps to reproduce:
- Create an event with all field filled in except for the time of the start of the event and the end of the event
- Click save
- Server crash
New behaviour
Steps to validate that it works:
- Create an event with all field filled in except for the time of the start of the event and the end of the event
- Click save
- No crash but an error for the user
Edited by Luko van der Maas