Currently I''m developing a multilingual app on rails 2.2. I liked very much the idea of Xavier Defrang to provide a locale-aware accessor for the fields that needs a translation: http://defrang.com/articles/2005/12/02/playing-with-rails-i18n I modified code a little to make it work with rails 2.2: def self.localize(*attribute_names) attribute_names.each do |attribute_name| class_eval %{ def _#{attribute_name} localized_method = "#{attribute_name}_\# {I18n.locale.to_s}" return send(localized_method.to_sym) if respond_to? (localized_method) #{attribute_name} end } end end it works fine for :show, :index, :new. But when I''m trying to create or update, I get the following error: ActiveRecord::UnknownAttributeError in NewsitemsController#create unknown attribute: _body What''s wrong? Please, help.