Hey all, I've got a situation where I have 2 object A and B, and a third object C that has a foreign key reference to both A and B. I can have many C's that map to the same A.
Now I've implemented a MapperExtension for C that has an after_delete function, and that function checks to see if the A that the deleted C was mapped to has any other mappings, and if there are no other mappings left, deletes the A. Now this works fine if I'm just deleting C's directly, however as soon as this happens during a cascade delete from some other object D that happens to have a mapping to C I get the below error - I'm assuming this is because sqlalchemy has a test condition that doesn't see my mapper coming, and freaks out when extra rows get nuked. "ConcurrentModificationError: Deleted rowcount 0 does not match number of objects deleted 4" Help ? Cheers Dave --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
