On Mon, Jan 5, 2009 at 08:50, Andy Grover <[email protected]> wrote: > > Hi, I'm porting my app from SQLObject. Given the model below: > > class Event(Entity): > date = Field(DateTime) > > class Person(Entity): > events = ManyToMany("Event") > > @property > def future_events(self): > # what goes here? > > I would like to create a property for Person that takes a relationship > and then further filters it (e.g. in the above example, by date.) In > SO I'd define the relation as a SQLRelatedJoin so that a.events would > return a QueryObj instead of an actual list, so I could do "return > self.events.filter(Event.q.date >= date.today())" > > What would be the recommended way to do this with Elixir, or perhaps > this is an SO-centric pattern that there's a better way to do with SA/ > Elixir?
You are probably looking for lazy="dynamic". See: http://www.sqlalchemy.org/docs/05/ormtutorial.html#building-a-relation and http://www.sqlalchemy.org/docs/05/mappers.html#dynamic-relation-loaders Note that dynamic_loader() is not supported in Elixir (but you can use lazy="dynamic" which does the same thing). -- Gaëtan de Menten http://openhex.org --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "SQLElixir" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sqlelixir?hl=en -~----------~----~----~----~------~----~------~--~---
