如何在Controller中获取模型值 [英] How to get Model values in Controller

问题描述

尝试在控制器的操作（alert）中获取点击的项目的值，但是我总是得到未定义。我想从模型中返回JSON（多个条目），并在控制器中访问它（不使用 FixtureAdapter ）。

 < script type =text / x-handlebarsdata-template-name =first> 
 ... 
 {{＃#each item in model}} 
< p {{action'myClick'}}> {{item.name}}< / p> 
 {{/ each}} 
 ... 
 
 App.FirstRoute = Ember.Route.extend（{
 model：function（）{
返回[
 {name：'Ruby'}，
 {name：'Java'} 
] 
 //返回['Ruby'，'Java'，'Scala'] ; 
} 
}）; 
 
 App.FirstController = Ember.Controller.extend（{
 title：'FirstController'中的数据，
操作：{
 myClick：function（）{
 alert（'action in controller  - >'+ this.get（'model'）。get（'name'））; 
} 
} 
}）; 
  

解决方案

为什么不把你的项目作为参数您的行动？

  {{＃每个项目在模型中}} 
< p {{aciton'myClick'项目}}> {{item.name}}< / p> 
 {{/ each}} 
 
 
 App.FirstController = Ember.Controller.extend（{
 title：'FirstController'，
 actions ：{
 myClick：function（item）{
 alert（'action in controller  - >'+ item.name）; 
} 
} 
}）; 
  

顺便说一句，你不返回 Ember.Object 在你的路线。您的模型是纯JavaScript对象的数组，而不是 item.get（'name'）使用 item.name / p>

Trying to get the value of a clicked item in controller's action (alert) but I always get undefined. I would like to return JSON (multiple entries) from model and access it in controller (without using FixtureAdapter).

<script type="text/x-handlebars" data-template-name="first">
...        
{{#each item in model}}
  <p {{action 'myClick'}}>{{item.name}}</p>
{{/each}}
...

App.FirstRoute = Ember.Route.extend({
    model: function(){
        return [
            {name: 'Ruby'},
            {name: 'Java'}
        ]
        //return [ 'Ruby', 'Java', 'Scala'];
    }
});

App.FirstController = Ember.Controller.extend({
  title:'data from FirstController',
  actions: {
      myClick: function() {
          alert('action in controller -> ' + this.get('model').get('name'));
      }
  }
});

解决方案

Why don't you pass your item as parameter to your action?

{{#each item in model}}
  <p {{aciton 'myClick' item}}> {{item.name}} </p>
{{/each}}


App.FirstController = Ember.Controller.extend({
  title:'data from FirstController',
  actions: {
    myClick: function(item) {
      alert('action in controller -> ' + item.name);
    }
  }
});

By the way you are not returning Ember.Object in your route. Your model is array of pure javascript object so instead of item.get('name') use item.name

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