Deleting a blocking/blocked by ticket does not fully destroy the relationship
|Reported by:||emil@…||Owned by:||coderanger|
When deleting a relationship in a blocking/blocked by field, the following things should happen:
- The blocking/blocked by field of the current ticket should be removed (and change history updated)
- The blocked by/blocking field for the referenced ticket should be removed (and change history updated)
- The relationship in the mastertickets table should be removed.
Currently, only #1 is happening. The code for this scenario in model.py appears to work fine, the problem is that the ticket_changed function in api.py only adds to the blocking/blocked_by attributes of the link, apparently expecting these sets to be empty. TicketLinks init function, however, populates these attributes with the existing relationships and makes a copy so it can determine the delta on an update. The net effect is that you can never really delete a relationship. To make matter worse, post_process_request is reporting changes based on the text fields, so the user sees relationships "added" and "removed" when in fact only the ticket property changed.
In our local environment, I added the following two lines before the for loops in the ticket_changed function:
The full function now looks like this:
def ticket_changed(self, tkt, comment, author, old_values):
db = self.env.get_db_cnx()
links = TicketLinks(self.env, tkt, db)
for s in set(self.NUMBERS_RE.findall(tktblocking? or )):
for s in set(self.NUMBERS_RE.findall(tktblockedby? or )):
links.save(author, comment, tkt.time_changed, db)