that worked thank you very much! On Sat, Dec 20, 2008 at 2:51 AM, Marnen Laibow-Koser <[email protected]>wrote:
> > On Dec 19, 8:26 am, "Felipe Vergara" <[email protected]> wrote: > > Some help please!! > > class Article < ActiveRecord::Base > > has_and_belongs_to_many :tags, :join_table => :articles_tags_users > [...] > > user = User.new > > tag = Tag.find(id) > > article = Article.find(id) > > user.tag << tag > > user.article << article > > > > all this creates 2 tuples on the database articles_tags_users instead of > one > > with all the values > > > > Do somebody knows how to do this? > > I hope someone will correct me if I'm wrong, but I believe you will > need to use has_many :through for this case -- HABTM isn't meant for 3- > way joins as far as I know. You'll need something like this: > > class Article < ActiveRecord::Base > has_many :correlations > has_many :tags, :through => :correlations > has_many :users, :through => :correlations > end > > (similarly for User and Tag) > > class Correlation < ActiveRecord::Base > belongs_to :article > belongs_to :tag > belongs_to :user > end > > Then your sample controller code would become something like > > user = User.new > tag = Tag.find(id) > article = Article.find(id) > user.correlations << Correlation.new(:tag => tag, :article => article) > > Does that help? > > Best, > -- > Marnen Laibow-Koser > [email protected] > http://www.marnen.org > > > -- Felipe Vergara Contesse Ingeniería Civil Industrial UC --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" 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/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
