On Nov 22, 2008, at 4:47 PM, Hinrich Winther wrote:
> > Hi, > > How do I something like > myObject = session1.query(something).one() > session2.add(myObject) > > without the need to expunge myObject from session1? use session.merge() > and another one: > How can I compare objects from different sessions to see if they > origin from the same row in the db? you'd want to compare the values of their primary key attributes. If you want a generic way without knowing what those attributes are, there's ways to determine them from the mappings, but it might be eaiser to compare their "key": from sqlalchemy.orm.attributes import instance_state instance_state(x1).key == instance_state(x2).key note that "key" is None for a transient/pending object. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
