Hack to create a new skinny model from an existing one

thin_model.rb

# By James Urquhart (jamesu)

class ActiveRecord::Base
  def self.thin_model
    table = table_name
    @@thin_model ||= Class.new(superclass).tap do |anon|
      anon.class_eval { set_table_name table }
     end
  end
end