First, get familiar with model callbacks if you're not already because you don't want to put this logic in the controller:
http://guides.rails.info/activerecord_validations_callbacks.html#callbacks-overview Then check out the dirty object feature that ActiveRecord provides and how to use it: http://api.rubyonrails.org/classes/ActiveRecord/Dirty.html http://railscasts.com/episodes/109-tracking-attribute-changes With that said, I'd probably write an "after_update" callback on whatever model you're using and interrogate that object with what "model.changed". --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---