vendor/plugins/has_many_polymorphs/test/models/person.rb

   1 require 'parentship'
   2 class Person < ActiveRecord::Base
   3   has_many_polymorphs :kids,
   4                       :through => :parentships,
   5                       :from => [:people],
   6                       :as => :parent,
   7                       :polymorphic_type_key => "child_type",
   8                       :conditions => "people.age < 10"
   9 end