覆盖时调用Mixin方法 [英] Call Mixin method when overriding

问题描述

我的控制器中有一个Mixin，它有特定的动作。我需要重写此操作，执行一些操作，然后调用Mixin提供的原始操作。

I've got a Mixin in my controller that has a particular action. I need to override this action, do some stuff, and then call the original action provided by the Mixin.

我该怎么做？

this._super（）在这种情况下似乎不起作用（这确实是有道理的，因为这意味着调用超类的实现，而不是Mixin。）

this._super() doesn't seem to work in this case (which does make sense, as it's meant to call the superclass' implementation, not a Mixin's).

推荐答案

为了调用 this._super 从 Ember.run.next 中尝试以下操作，

In order to call this._super from Ember.run.next try the following,

http://emberjs.jsbin.com/docig/3/edit

App.MyCustomMixin = Ember.Mixin.create({
  testFunc:function(){
    alert('original mixin testFunc');
  },
  actions:{
    testAction:function(){
      alert('original mixin testAction');
    }
  }
});

App.IndexController = Ember.Controller.extend(App.MyCustomMixin,{
  testFunc:function(){
    alert('overriden mixin testFunc');

    var orig_func = this._super;
    Ember.run.next(function(){
      orig_func();
    });
  },
  actions:{
    test:function(){
      this.testFunc();
    },
    testAction:function(){
      alert('overriden mixin testAction');
      var orig_func = this._super;
      Ember.run.next(function(){
        orig_func();
      });
    }
  }
});

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