Question

I have the following models:

class Infoset < ActiveRecord::Base
  belongs_to :infosetable,  :polymorphic => true
end

class Product < ActiveRecord::Base
  belongs_to :productset
  has_one :infoset, :as => :infosetable, :dependent => :destroy
end

class Productset < ActiveRecord::Base
  has_one :infoset, :as => :infosetable, :dependent => :destroy
  has_many :products
end

I can get infosets fine via Product.infoset or Productset.infoset

But how do I get a Product or Productset via Infoset?

infoset.product just returns the infoset.

Answer 1

@infoset.infosetable will return either a Product or a Productset, as appropriate.