class TestUser < ActiveRecord::Base
  self.table_name = "users"
end

class TestItem < ActiveRecord::Base
  self.table_name = "items"
end

class TestWatching < ActiveRecord::Base
  self.table_name = "watchings"
  
  belongs_to :watcher,      :class_name => "TestUser", :foreign_key => "user_id"
  belongs_to :watched_item, :class_name => "TestItem", :foreign_key => "item_id"
end