> > but I thought somehow that meta.reflect() would pick up on the fk > constraints ... >
Class MetaData is part of the core api that ORM builds on top of, and meta.reflect() does pick up the fk constraints from the database. Think of it this way, MetaData, whether reflected or declared in its entirety, is holding a database level description of your tables and the fk relationships, what you need to do is declare to SA's ORM how you will use the relationships; e.g., are they eager loading, are they 1-1, 1-n or m-n, are they 2-way, give a name to the relation to use in your Python code, etc. There are a lot of defaults, but you at least have to give relationships a name so that they can be used in you program. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
