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 here http://wm.lighthouseapp.com/projects/4819/tickets/485-has-n-through-does-not-allow-saving-of-model#ticket-485-5 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 -~----------~----~----~----~------~----~------~--~---
