Fix bug.

config/routes.rb

@@ -36,6 +36,7 @@ Rails.application.routes.draw do
         q.survey_question_options.where("name.en.en"=>//).destroy
       end
       survey.save
+      survey.survey_answers.each_with_index{|a,i| a.updated_at = a.created_at;a.save}
     end
   end
   scope "(:locale)", locale: Regexp.new(locales.join("|")) do