如何使用Ember数据访问json中的嵌套对象 [英] How to access nested object in json with Ember data

问题描述

我正在使用Ember数据，并很难弄清楚从服务器获取的垃圾回收信息可以在JSON响应中识别嵌套的属性。这是ember-1.0.0-pre.4.js。

I'm using Ember data and having a hard time figuring out get ember to recognize nested properties in my JSON response from the server. This is ember-1.0.0-pre.4.js.

目前，我已经设置了与Ember数据版本11相关联的模型。这里

Currently, I've set up associated models with Ember data revision 11. Here the

# School Model
App.School = DS.Model.extend
  addr:       DS.belongsTo('App.Addr')

  name:       DS.attr 'string'
  status:     DS.attr 'string'

# Address Model
App.Addr = DS.Model.extend
  school:   DS.belongsTo 'App.School'

  line1:    DS.attr 'string'
  city:     DS.attr 'string'
  state:    DS.attr 'string'
  iso:      DS.attr 'string'

以下是我的服务器的JSON响应：

And here is the JSON response from my server:

{"schools":
 [{
    "_id":"51020261bbc3b8c526000007",
    "name":"Willamette",
    "status":"p",
    "addr":{
      "line1":"122 Evergreen Terrace",
      "city":"Springfield",
      "state":"IL",
      "iso":"US"
    }
   }    
  ]}

我的适配器设置如下：

    App.Store = DS.Store.extend
      revision: 11
      adapter: DS.RESTAdapter.create({
        url: "http://localhost:8000/api"
        serializer: DS.RESTSerializer.extend
        primaryKey: (type) ->
          '_id';
      }) 

更新：
我试图映射addr属性， 如下。仍然没有骰子...

UPDATE: I've tried to map the addr property, as follows. Still no dice...

DS.RESTAdapter.map 'App.School', 
  addr: { embedded: 'always'}

在我的模板中，我想做这样的事情...

In my template, I'd like to do something like this...

   <script type="text/x-handlebars" data-template-name="school">
      <h2>School: {{name}}</h2>
      <p> Status: {{ status }}</p>
      <p> Address: {{ addr.line1 }} {{ addr.city }} </p>
    </script>

名称和状态属性呈现良好。但是addr.line1和addr.city是空白的。有没有办法让Ember识别嵌套的addr属性？

The name and status properties render fine. But addr.line1 and addr.city are blank. Is there a way to get Ember to recognize the nested addr propeties?

谢谢！

推荐答案

您是否有时间查看

Ember Data：Model Fragments

它允许嵌套数据

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