On Oct 4, 2010, at 1:34 AM, Anton Shestakov wrote: > Hello all, > > So, here's simple script that produces the error: http://pastie.org/1197851 > please take a look at it, the script isn't big at all and there's > traceback for the error as well. In short, it issues a query to get a > simple object (Post) with one-to-many relation tag_links (i.e. array > of PostTagLink instances), then it does post.tag_links = [] and tries > to Session.commit() it. And fails terribly. > > Guts tell me I may be doing something wrong, but I don't know what > exactly. I'll greatly appreciate your help. > > Best regards, Anton Shestakov.
you need delete-orphan cascade. http://www.sqlalchemy.org/docs/orm/tutorial.html#configuring-delete-delete-orphan-cascade > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To post to this group, send email to sqlalch...@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. > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalch...@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.
