luis@328: class Authorship < ActiveRecord::Base
luis@328:   belongs_to :author
luis@328:   belongs_to :publication
luis@393:   
luis@483:   accepts_nested_attributes_for :author
luis@483:   accepts_nested_attributes_for :publication
luis@483:   
luis@530:   
luis@518:   # setter and getter for virtual attribute :user_id
luis@519:   def user_id    
luis@518:   end 
luis@481:   
luis@530:   def user_id=(uid)  
luis@530:     unless uid.blank?
luis@530:       user = User.find(uid)                         
luis@530:       if user.author.nil?      
luis@530:         # TODO: should reflect the name_on_paper parameter
luis@530:         author = Author.new :name => user.name
luis@530:         author.save!
luis@530:         user.author = author
luis@530:         user.save!
luis@530:      end
luis@530:            
luis@530:     self.author_id = user.author.id
luis@519:     end    
luis@518:   end
luis@328: end