I am looking at http://www.sqlalchemy.org/trac/browser/examples/generic_associations/discriminator_on_association.py and trying to adapt the example to one that is generic and can be reused. So I attempted to abstract all the classes. However there seems to be an error in the __new__ function of the creator object.
CODE is here http://pastebin.com/4DyK47r3 ERROR is here: Traceback (most recent call last): File "sqlalchemyex.py", line 136, in <module> zip="95732") File "<string>", line 4, in __init__ File "/home/ahmed/dev/pyrenv/lib/python2.6/site-packages/ SQLAlchemy-0.6.6-py2.6.egg/sqlalchemy/orm/state.py", line 111, in initialize_instance return manager.events.original_init(*mixed[1:], **kwargs) File "/home/ahmed/dev/pyrenv/lib/python2.6/site-packages/ SQLAlchemy-0.6.6-py2.6.egg/sqlalchemy/ext/declarative.py", line 1378, in _declarative_constructor setattr(self, k, kwargs[k]) File "/home/ahmed/dev/pyrenv/lib/python2.6/site-packages/ SQLAlchemy-0.6.6-py2.6.egg/sqlalchemy/ext/associationproxy.py", line 195, in __set__ setattr(obj, self.target_collection, creator(values)) File "sqlalchemyex.py", line 28, in <lambda> discriminator=discriminator) TypeError: object.__new__() takes no parameters Can anyone please help me understand what am I doing wrong? I guess if I know what's causing the error, then the code after some polishing will be a good candidate to include in the SQLalchemy recipes. Cheers, Ahmed http://stackoverflow.com/questions/7582861 -- 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.
