On Jan 23, 2008 10:24 PM, Monty Taylor <[EMAIL PROTECTED]> wrote: > > This may or may not be elixir specific... > > If I have an auto-generated mapping table for a many-to-many > relationship, is there a sensible way to add another column to it that's > also has a foreign key relationship to a third table? > > Like, if I had this: > > Products > id int > name varchar > > ProductTypes > id int > name varchar > > Groups > id int > name varchar > > and then I defined a many to many between products and groups to get > > products_groups > product_id > group_id > > and I wanted to add producttype_id to that ...
You'll probably want to use the Association Object pattern, as described at: http://www.sqlalchemy.org/docs/04/mappers.html#advdatamapping_relation_patterns_association And possibly, the AssociationProxy plugin, at: http://www.sqlalchemy.org/docs/04/plugins.html#plugins_associationproxy This one can be used with Elixir just fine. You just need to import it from SQLAlchemy: from sqlalchemy.ext.associationproxy import AssociationProxy -- Gaëtan de Menten http://openhex.org --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
