DOM准备好后如何在控制器中调用方法

Question

现在updateChartObserver在价值mHours aHours发生变化时有效。

我想在DOM准备就绪时执行updateChartObserver函数。

由于

视图

{{input type='text' value=mHours}}
{{input type='text' value=aHours}}

模型

App.ApplicationRoute = Ember.Route.extend({
  model: function(){
    // Ember.A() just a way to define an Ember
    return Ember.A([
      Ember.Object.create({'letter':'Manual working hours', 'num':0 }),
      Ember.Object.create({'letter':'Automating working hours', 'num':0 }),
      Ember.Object.create({'letter':'Saving hours/round', 'num':0 }),
      Ember.Object.create({'letter':'Saving hours/year', 'num':0 }),
    ]);
  }
});

控制器

App.ApplicationController = Ember.ArrayController.extend({
  mHours: 20,
  aHours: 5,

  savingHours:function(){
    return this.get("mHours")*5;
  }.property('mHours'),  

updateChartObserver: function(){
    data = this.get('model');
    data[0].set("num", this.get("mHours"));
    data[1].set("num", this.get("aHours"));
  }.observes('mHours','aHours'),