Kazim Zaidi wrote: > If Product and Category models are in a habtm relationship, i.e. > > class Product < ActiveRecord::Base > has_and_belongs_to_many :categories > end > > class Category < ActiveRecord::Base > has_and_belongs_to_many :products > end > > I want a piece of code to be executed every time a product is connected > to a category. > Where do I put this code? Which callback (and on which model) will be > triggered?
Look into adding :after_add callbacks to the associations: http://api.rubyonrails.com/classes/ActiveRecord/Associations/ClassMethods.html#M001602 -- Rails Wheels - Find Plugins, List & Sell Plugins - http://railswheels.com --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
