Hello everyone, I want to find emails that have no projects added. 'projects' is an SQLA collection in Email class.
So I have this: unassocusers = session.query(Email).filter(Email.projects == []).order_by(Email.email).all() And I get this: InvalidRequestError: Can't compare a collection to an object or collection; use contains() to test for membership. This is again many to many relation: mapper(Email,email_table, properties={'projects':relation(Project, secondary=project_emails_assoc_table, backref='email_project_assoc')} ) Any way of achieving this? Regards, mk --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---