# File lib/active_record/attribute_methods.rb, line 42 def defined_activerecord_methods active_record = ActiveRecord::Base super_klass = ActiveRecord::Base.superclass methods = (active_record.instance_methods - super_klass.instance_methods) + (active_record.private_instance_methods - super_klass.private_instance_methods) methods.map {|m| m.to_s }.to_set end