def restore_attrs
      draftable_columns.each do |key|
        self.send "#{key}=", self.draft.data[key] if self.respond_to?(key)
      end
      self
    end
def restore_attrs
      draftable_columns.each do |key|
        self.send "#{key}=", self.draft.data[key] if self.respond_to?(key)
      end
      self
    end
Whack the draft data onto the real object.

 @return [Draftable] the draftable object populated with the draft attrs.