Ember数据未使用夹具加载属于关系

Question

我正在开发一个非常基本的ember应用程序,但我似乎无法让它显示belongssto模型.

我的用户模型:

News.User = DS.Model.extend({
    username: DS.attr('string'),
    items: DS.hasMany('News.Item')
});

News.User.FIXTURES = [
    {
        "id": 1,
        "username": "Bobba_Fett",
        "items": [1,2]
    }]

我的商品型号:

'use strict';

News.Item = DS.Model.extend({
    title: DS.attr('string'),
    url: DS.attr('string'),
    domain: DS.attr('string'),
    points: DS.attr('number'),
    comments: DS.hasMany('News.Comment'),
    user: DS.belongsTo('News.User')
});

News.Item.FIXTURES = [
    {
        "id": 1,
        "title": "This is story 1",
        "url": "http://google.com",
        "domain": "google.com",
        "points": 45,
        "comments": [1,2,3],
        "user_id": 1
    }, 
    {
        "id": 2,
        "title": "This is another story",
        "url": "http://yahoo.com",
        "domain": "yahoo.com",
        "points": 30,
        "comments": [1,2,3],
        "user_id": 1
    }
]

我的HTML(问题是用户名没有显示,只是空白),其他一切显示正常:

<script type="text/x-handlebars" data-template-name="items">
        <div class="row">
            <ul>
                {{#each itemList}}
                    <a href="upvote">&#x25B2;</a><a {{bindAttr href="url"}}>{{title}}</a> ({{domain}})<br />
            <small>{{points}} Ups -- submitted by {{user.username}}</small><br />
                {{/each}}
            </ul>
        </script>

Answer 1

问题出在News.Item.FIXTURES声明中,"user_id"应该命名为just "user",因为这是关系在Model定义中得到的属性的名称.

这应该工作:

News.Item.FIXTURES = [
    {
        id: 1,
        title: "This is story 1",
        url: "http://google.com",
        domain: "google.com",
        points: 45,
        comment": [1,2,3],
        user: 1
    }, 
    {
        id: 2,
        title: "This is another story",
        url: "http://yahoo.com",
        domain: "yahoo.com",
        points: 30,
        comments: [1,2,3],
        user: 1
    }
];

编辑:我不知道你是否仍然在研究这个问题,但是这里有一个工作小提示你的代码,请注意我必须添加一个空模型News.Comments = DS.Model.extend({});才能工作:

http://jsfiddle.net/Mftye/1/

希望这有帮助!