Hello, i implemented a generic foreign key/relationship, using this example: http://docs.sqlalchemy.org/en/latest/_modules/examples/generic_associations/discriminator_on_association.html
In the example addresses is passing in constructor: session.add_all([ Customer( name='customer 1', addresses=[ Address( street='123 anywhere street', city="New York", zip="10110"), Address( street='40 main street', city="San Francisco", zip="95732") ] ), Supplier( company_name="Ace Hammers", addresses=[ Address( street='2569 west elm', city="Detroit", zip="56785") ] ), ]) But if i try to do something like this: _cust = Customer('name') session.add(_cust) session.commit() #And After try to use "addresses" _cust.addresses.append(Address(street='2569 west elm',city="Detroit", zip="56785")) #It doens't work, "addresses" is None. Is there any way to use this without pass "addresses" in the constructor? I'm using mysql and sqlachemy version is '1.1.15'. -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.