如何使用 Ember 数据访问 json 中的嵌套对象

问题描述

我正在使用 Ember 数据并且很难弄清楚让 ember 识别来自服务器的 JSON 响应中的嵌套属性.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，我已经使用 Ember 数据修订版 11 设置了关联模型.这里是

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'

这是来自我的服务器的 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:我尝试映射 addr 属性，如下所示.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

你有时间看看

Ember 数据:模型片段

允许嵌套数据

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