Uuidify ======= Add UUIDs to existing ActiveRecord models. To install: rake uuidify:install:migrations rake db:migrate To enable on a specific model: class Foo < ActiveRecord::Base uuidify end To get/set uuids: Foo.new.uuid Foo.new.uuid = UUIDTools::UUID.timestamp_create To gc orphan records: Foo.garbage_collect_uuids # single model Uuidify.garbage_collect_uuids # everything, even if the model doesn't exist in the source