Thanks Fred, I took your advice and added a theatre_id column to the Shows table.
Then I added the following callback to the Shows model, in order to automatically update the :theatre_id column with the id of the corresponding theatre in the Theatres table. class Show < ActiveRecord::Base belongs_to :theatre after_create :build_theatre_ids def build_theatre_ids t = Theatre.find_by_name(self.venue) self.update_attributes(:theatre_id => t.id) rescue nil end end And it works a treat! -- Posted via http://www.ruby-forum.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 rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---