# File lib/active_record/base.rb, line 2173
      def cache_key
        case
        when new_record?
          "#{self.class.name.tableize}/new"
        when self[:updated_at]
          "#{self.class.name.tableize}/#{id}-#{updated_at.to_s(:number)}"
        else
          "#{self.class.name.tableize}/#{id}"
        end
      end