defined_activerecord_methods

# File activerecord/lib/active_record/attribute_methods.rb, line 27
      def defined_activerecord_methods
        active_record = ActiveRecord::Base
        super_klass   = ActiveRecord::Base.superclass
        methods =  active_record.public_instance_methods - super_klass.public_instance_methods
        methods += active_record.private_instance_methods - super_klass.private_instance_methods
        methods += active_record.protected_instance_methods - super_klass.protected_instance_methods
        methods.map {|m| m.to_s }.to_set
      end