On Sep 2, 2008, at 12:06 PM, Remi Jolin - SysGroup wrote:
> > Hello, > > Here is a small example of my issue (it's Elixir syntax, but I think > it's not an Elixir specific issue) : > class Rec(Entity): > collection = ManyToOne('Coll') > > class Coll(Entity): > recs = OneToMany('Rec') > > r1 = Rec() > r2 = Rec() > c = Coll(recs=[r1,r2]) > > at that time len(c.recs) == 2 > > if I do something like r1.delete(), I would expect len(c.recs) == 1 > but > it stays at 2 until the flush(). Am I missing some parameter on the > class definitions ? > I've tried some "cascade" parameters but they seem to handle the Recs > deletion when you delete a Coll. saying r1.delete() won't automatically update the already-loaded "recs" collection which it's a part of. You'd instead configure cascade="all, delete-orphan" on "recs", so that the removal of a Rec from c.recs would result in its deletion. Otherwise, any activity which refreshes "c.recs" after a flush has occured will also do. I'm also not sure if the above is properly associating "recs" with "collection" since SQLA usually needs a "backref" keyword to work this out; I'm not sure what Elixir uses to indicate that. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---