Thanks Kristian. I'm glad there's a workaround. Pretty significant issue imo.
Mark. On Nov 18, 6:28 am, kristian <[EMAIL PROTECTED]> wrote: > a workaround for this bug is to add :mutable => true as option, i.e. > > has n, :users, :through => :profiles, :mutable => true > > see also my comment > herehttp://wm.lighthouseapp.com/projects/4819/tickets/485-has-n-through-d... > > with regards > Kristian > > On Nov 17, 7:27 pm, MarkMT <[EMAIL PROTECTED]> wrote: > > > I'm having some difficulty with associations in datamapper - hopefully > > someone can show me where my misunderstanding lies... > > > I have two models related by a many to many association via a join > > model. > > > --- > > class Subscription > > > include DataMapper::Resource > > > property :id, Serial > > > has n, :profiles > > has n, :users, :through => :profiles > > --- > > class User > > > include DataMapper::Resource > > > property :id, Serial > > > has n, :profiles > > has n, :subscriptions, :through => :profiles > > --- > > class Profile > > > include DataMapper::Resource > > > property :subscription_id, Integer, :key => true > > property :user_id, Integer, :key => true > > > belongs_to :subscription > > belongs_to :user > > --- > > > Then in the controller I attempt to instantiate a subscription and > > user and associate them... > > > --- > > def some_action > > @subscription = Subscription.create > > @user = User.create > > @subscription.users << @user > > end > > --- > > > When I point my browser at this action, I get the following - > > > Immutable Association Error 500 > > You can not modify this association > > > I've tried the same association operation with ActiveRecord in Rails > > and it works fine there. Evidently there's something different about > > datamapper that I don't understand. > > > Any suggestions would be much appreciated. > > > Mark. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "DataMapper" 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/datamapper?hl=en -~----------~----~----~----~------~----~------~--~---
