When should the database record be deleted, when a course is triggered?

[tobiasreischmann]

We already discussed about this earlier. I am still not satisfied with the way handle_course() first removes the database record from your db table and then returning true, without the guarantee that the process is actually triggered.
I would suggest to add events to the core API, when a process for a course is triggered. Then you could listen for this event and remove the db entry only in this case.