def set_ivar(binding, ivar, value)
      if value.class.respond_to?(:find)
        value = value.class.find(value.id)
      end
      super(binding, ivar, value)
    end
def set_ivar(binding, ivar, value)
      if value.class.respond_to?(:find)
        value = value.class.find(value.id)
      end
      super(binding, ivar, value)
    end
reload any AR instances