Make event.organiser NOT NULL
Now that every event has an organiser, the field should be set to NOT NULL. This would also allow a relaxation of the constraint checking we're doing in various places (see !431 (merged) !440 (merged))
Now that every event has an organiser, the field should be set to NOT NULL. This would also allow a relaxation of the constraint checking we're doing in various places (see !431 (merged) !440 (merged))