finding items that don't contain, or don't have, an item is always via EXISTS, which is easiest using any()/has():
Session.query(Messages).filter(Messages._from_user == 1).filter(~Messages.user.has(User.id==1) On Sep 17, 2010, at 9:04 AM, Dobrysmak wrote: > Okay, i have got a stupid question. > i have got something like this: > > result = Session.query(Messages).filter( > Messages.from_user == 1).filter( > User.id != 1).all() > > This query is supposed to get all the messages ( Messages table) that > have the senders id (from_user) but select ONLY this messages that are > connected to all users except user with id = 1. > This tables are many-to-many( Messages, Messages_Users, Users ). The > relationship is set correctly. > > Is this even possible? ;-) > > -- > 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.
