Hi, I implement ancestor which have some usable utilities for rest-service models. Reason to have it is in bug http://bugzilla.novell.com/show_bug.cgi?id=543423 . I call it BaseModel and it is inspired by ActiveModel from rails3.0. It is general usability and I think that all models which is not based on database or REST service could benefit from it. ( just inform me, I can help you to use it in your project). Main features is: * callbacks (before_save etc.) * validations ( validates_format_of etc.) * serialization ( to_xml and to_json and also restore it) * mass assignment (load instance from hash, also whitelisting and blacklisting attributes for mass assignment). For details see documentation: http://yast.suse.de:3334/view/webyast/job/webyast-service-head- i586/javadoc/webservice/index.html classes in BaseModel namespace (sorry internal only, as we still doesn't have public place where we synchronize documentation ). Or you can generate it in git by rake doc:app in webservice directory. For example usage see time plugin, which use validations, after_save hook, mass assignment and also serialization ( It is also example of xml limitation as for hash is key used as tags and tags is quite restricted, so time module must transform hash before serialization ). Welcome your comments, suggestions or ideas what could be improved or added ( especially if more then one plugin could benefit from it). Josef -- Josef Reidinger YaST team maintainer of perl-Bootloader, YaST2-Repair, webyast (language,time,basesystem,ntp) -- To unsubscribe, e-mail: opensuse-ruby+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-ruby+help@opensuse.org