feeds.rb

class Recette < AR::Base
  include Feeds::ModelMixin
end

class Article < AR::Base
  include Feeds::ModelMixin
end


module Feeds
  
  module ModelMixin
    
    def self.included(base)
      base.after_create(:create_feed_item)
    end
    
    def create_feed_item
      model = "Feeds::#{self.class.name}Item".constantize
      model.create!(
        :created_at => created_at # etc
      )
    end
    
  end
  
  class Item < AR::Base
    abstract = true
    
    # field created_at
    
  end
  
  class RecetteItem
    
    has_one :recette, :column => :attachable_id
    
  end
  
  class ArticleItem

    has_one :article, :column => :attachable_id

  end