Hi ho, Thanks for the swift reply!
> Did you use uselist=False on foo.bar and the associationproxy? It would nice > if you could show some > code.http://www.sqlalchemy.org/docs/orm/extensions/associationproxy.html?h... Yes I did. The code is more complicated as it has a bunch of other stuff in it, but here's a condensation: class Foo(Base): id = Column(Integer, primary_key = True) foo_bar_join = relationship(FooBar, primaryjoin = (id == FooBar.id_foo), uselist = False) bar = association_proxy('foo_bar_join', 'bar', creator = lambda x: FooBar(bar = x) ) class Bar(Base): id = Column(Integer, primary_key = True) class FooBar(Base): id_foo = Column(Integer, ForeignKey('foo.id'), primary_key = True) id_bar = Column(Integer, ForeignKey('bar.id'), primary_key = True) bar = relationship(Bar, primaryjoin = (id_bar == Bar.id)) other_stuff = Column(Integer) The problem comes if you try to fetch 'bar' from an instance of 'Foo' for which there is no entry in the "foo_bar" join table. -- 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.
