activerecord/test/models/tagging.rb


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# test that attr_readonly isn't called on the :taggable polymorphic association
module Taggable
end

class Tagging < ActiveRecord::Base
  belongs_to :tag, -> { includes(:tagging) }
  belongs_to :super_tag,   :class_name => "Tag", :foreign_key => "super_tag_id"
  belongs_to :invalid_tag, :class_name => "Tag", :foreign_key => "tag_id"
  belongs_to :blue_tag, -> { where :tags => { :name => "Blue" } }, :class_name => "Tag", :foreign_key => :tag_id
  belongs_to :tag_with_primary_key, :class_name => "Tag", :foreign_key => :tag_id, :primary_key => :custom_primary_key
  belongs_to :taggable, :polymorphic => true, :counter_cache => :tags_count
  has_many :things, :through => :taggable
end