Thanks for the help with my query the other day - as ever response was swift and bang on.
I'm now trying to set up another m:n relationship in ORM correctly. Pseudocode: parentA.children.append(child1) parentA.children.append(child2) parentB.children.append(child2) session.delete(parentA) At this stage, I would like child1 to be deleted and child2 to survive. However, if I use (cascade = "all"), then both children will be deleted when ParentA is. I hoped that delete-orphan would be applicable in this situation, but that requires that single-parent be True, which I understand it cannot for a true many-to-many. So I guess what I am asking is - is it possible for child objects which have still have remaining parents to survive, while deleting those with no parents left? Thanks, Ben -- 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 sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
