ruby-on-rails - AASM 回调不起作用

Question

我正在使用 AASM 来管理状态，并且只是想要一些列来跟踪状态更改的时间，但回调似乎不起作用。当然，问题可能出在我的方法上，我只是不确定。

        aasm_state :active, :after => :activate
        aasm_state :inactive
        aasm_state :deactivated, :after => :deactivate

        aasm_event :active do
          transitions :to => :active, :from => [:inactive]
          transitions :to => :active, :from => [:deactivated]
        end

        aasm_event :deactivated do
          transitions :to => :deactivated, :from => [:active]
        end

       def activate
         activated_at = Time.now
      end  

      def deactivate
        deactivated_at = Time.now
      end

Answer 1

在 Rails 3 版本的 AASM 中，您需要将回调应用于转换事件，而不是状态。所以你的代码可以是 -

    aasm_state :active

    aasm_event :active, :after => :activate do 

        transitions :to => :active, :from => [:inactive]
        transitions :to => :active, :from => [:deactivated]
    end