Michael Bayer <[EMAIL PROTECTED]> writes: >> If I want to query on containers and on area, I can simply do >> >> q = Container.query().filter(...) >> >> but, if I receive a query on Item and a base class, say either Item, >> Container or Area, how can I filter() my query to receive only the >> sub-items from this base class? > > filter on type_.in(["area", "container"]) is one approach. Easier > though is session.query(Container); it'll load from the join of items/ > containers so you wouldn't get any non-Container objects.
Sounds good. I didn't find how to get the polymorphic_identity of a mapped class. Is it possible to retried it if I have only the class object? This is not a big problem since I can use Item.__name__ as the polymorphic_identity. -- Yannick Gingras --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
