访问控制器函数内的内容 ember [英] Access content inside a controller function ember

问题描述

我有一个路由、控制器、这样的视图.问题是我从视图中调用了控制器函数 reloadTime 但在 reloadTime 函数中，我控制台了这个控制器的内容，但它说它是 undefined.我的问题是如何在 ember 中访问此内容?

App.ActivecallsRoute = Ember.Route.extend({设置控制器:功能(控制器，模型){$.ajax({url:'requests/activecalls.php',类型:'POST'，成功:功能(数据){App.Cdrglobal.set('active_call',data.length);控制器.set('内容',数据);}})}});App.ActivecallsController = Ember.ArrayController.extend({内容:[]，删除调用:函数(模型){var obj = this.findProperty('ID',model.ID);App.Cdrglobal.set('active_call',App.Cdrglobal.active_call-1);this.removeObject(obj);},重新加载时间:功能(){console.log(this.get('content'));//控制台未定义console.log(this.content);控制台未定义}});App.ActivecallsView = Ember.View.extend({didInsertElement:function(){this.get('controller').reloadTime();}});

解决方案

您正在正确访问 content 属性.你得到 undefined 的原因是因为 content 属性实际上是未定义的.

现在你的 content 未定义的原因是因为 Ember.js 自动将控制器的内容设置为路由中 model 钩子的返回值.

因为你没有定义 model 方法，如果这个钩子是 undefined 的返回值，因此 Ember.js 正在设置控制器 content 属性为 undefined.

解决方案:

创建一个只返回空数组的虚拟模型钩子:

App.ActivecallsRoute = Ember.Route.extend({设置控制器:功能(控制器，模型){$.ajax({url:'requests/activecalls.php',类型:'POST'，成功:功能(数据){App.Cdrglobal.set('active_call',data.length);控制器.set('内容',数据);}});},模型:函数(){返回 [];}});

I have a route, controller, view like this. The problem is I called controller function reloadTime from view but in reloadTime function I console the content for this controller but it says it is undefined. My question is how to access this content in ember?

App.ActivecallsRoute = Ember.Route.extend({
    setupController:function(controller,model){
        $.ajax({
            url:'requests/activecalls.php',
            type:'POST',
            success:function(data){
                App.Cdrglobal.set('active_call',data.length);
                controller.set('content',data);
            }
        })
    }
});

App.ActivecallsController = Ember.ArrayController.extend({
    content:[],
    deleteCall:function(model){
       var obj = this.findProperty('ID',model.ID);
       App.Cdrglobal.set('active_call',App.Cdrglobal.active_call-1);
       this.removeObject(obj);
    },
    reloadTime:function(){
        console.log(this.get('content'));//console undefined
        console.log(this.content);console undefined
    }
});


App.ActivecallsView = Ember.View.extend({
   didInsertElement:function(){
       this.get('controller').reloadTime();
   }
});

解决方案

You are accessing the content property correctly. The reason why you are getting undefined is because the content property is actually undefined.

Now the reason why your content is undefined, is because Ember.js automatically sets the controller's content to the return value of the model hook in the route.

Since you didn't define a model method, the return value if this hook is undefined and therefore Ember.js is setting the controller content property to undefined.

Solution:

Create a dummy model hook that just returns an empty array:

App.ActivecallsRoute = Ember.Route.extend({
  setupController:function(controller,model){
    $.ajax({
      url:'requests/activecalls.php',
      type:'POST',
      success:function(data){
        App.Cdrglobal.set('active_call',data.length);
        controller.set('content',data);
      }
    });
  },
  model: function() {
    return [];
  }
});

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