Ember数据一对多关系不起作用

我对烬来说很新，但我想知道这是否是我的逻辑问题，或者是否有某些东西在烬中不能正常工作。Ember数据一对多关系不起作用

当我尝试model.get('profile')时，我收到空。

我已经能够获取轮廓模型，像这样： this.store.find('profile', 17); 我也可以在PROFILE_ID属性添加到选址模型，然后用它

var location = this.modelFor('location'); 
var profile = this.store.find('profile', 17);

但是从我可以在文档中找到我应该可以在位置对象上使用来获取其配置文件。

奇怪的是我的附件关系（位置有很多附件）完美地工作。

我错过了什么吗？我做错了什么导致这种关系失败？

我有三个型号：

locatons->

export default DS.Model.extend({ 
    image: DS.attr('string'), 
    latitude:DS.attr('string'), 
    longitude:DS.attr('string'), 
    outlets:DS.attr('string'), 
    parking:DS.attr('string'), 
    internet:DS.attr('string'), 
    credit_cards:DS.attr('string'), 
    share_url:DS.attr('string'), 
    roaster:DS.attr('string'), 
    about:DS.attr('string'), 
    name: DS.attr('string'), 
    address: DS.attr('string'), 
    images: DS.attr('string'), 
    attachments: DS.hasMany('attachment'), 
    profile: DS.belongsTo('profile'), 
    curator_image: DS.attr('string'), 
    curator_about: DS.attr('string'), 
    curator_name: DS.attr('string'), 
    style_image_url: function(){ 
    return "background-image:url('" + this.get("image") + "')"; 
    }.property("image"), 
    style_profile_image_url: function(){ 
    return "background-image:url('" + this.get("curator_image") + "')"; 
    }.property("curator_image"), 
});

附件 - >

export default DS.Model.extend({ 
    location: DS.belongsTo('location'), 
    image:DS.attr('string') 
});

配置文件 - >

export default DS.Model.extend({ 
    location: DS.hasMany('location'), 
    name:DS.attr('string'), 
    about:DS.attr('string'), 
    image:DS.attr('string'), 
});

这里是从一个样本响应服务器： locations.json

{ 
    attachments: [ 
    { 
     id: 254, 
     image: "https://dripper-dev.s3-us-west-1.amazonaws.com/uploads/large_9443c014-69e1-4616-943d-e627a47f8306.jpg?AWSAccessKeyId=AKIAJPYWBHET4VVL5NUA&Signature=nD3YMiuFiHtpuTPop77Q%2BS6N9HM%3D&Expires=1427847353" 
    }, 
    { 
     id: 250, 
     image: "https://dripper-dev.s3-us-west-1.amazonaws.com/uploads/large_3e562933-5ce2-4f91-bb6f-6fe6883e0463.jpg?AWSAccessKeyId=AKIAJPYWBHET4VVL5NUA&Signature=ESbhuHNjx9kD63gJY3UVRsHs2B8%3D&Expires=1427847353" 
    }], 
    locations: [ 
    { 
     id: 12, 
     latitude: "45.550346", 
     longitude: "-122.666584", 
     address: "3808 North Williams Avenue, Portland, OR 97212, USA", 
     outlets_text: "Yes", 
     internet_text: "No", 
     roaster: "Ristretto Roasters", 
     parking_text: "Yes", 
     credit_cards: true, 
     image: "https://dripper-dev.s3-us-west-1.amazonaws.com/uploads/medium_9b676fc6-814c-4f5f-a03b-5a5f650fc7aa.jpg?AWSAccessKeyId=AKIAJPYWBHET4VVL5NUA&Signature=w5pSN5iJbtlWfiFo2UMcJMN6pAs%3D&Expires=1427847347", 
     name: "Ristretto", 
     twitter_username: null, 
     curator_image: "https://dripper-dev.s3-us-west-1.amazonaws.com/uploads/basic_uploader/Profile/9d77af52-033b-4bd9-8cb4-8b961f366392.jpg?AWSAccessKeyId=AKIAJPYWBHET4VVL5NUA&Signature=YsgxmH%2B5wmlOpVSoti5kn0DozKQ%3D&Expires=1427847347", 
     curator_name: "Jack White", 
     curator_about: "this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test ", 
     profile_id: 17, 
     attachment_ids: [ 
      30 
     ] 
    }, 
    ...

路线： /routes/location.js

export default Ember.Route.extend({ 
    model: function(params) { 
     return this.store.find('location', params.location_id); 
    } 
});

/路由/位置/索引

export default Ember.Route.extend({ 
    model: function() { 
     return this.modelFor('location').get('profile'); 
    } 
});

更新：我能够获取配置文件模型通过更改我的JSON到：

{ 
    attachments: [], 
    locations: [ 
    { 
     id: 12, 
     latitude: "45.550346", 
     longitude: "-122.666584", 
     address: "3808 North Williams Avenue, Portland, OR 97212, USA", 
     outlets_text: "Yes", 
     internet_text: "No", 
     roaster: "Ristretto Roasters", 
     parking_text: "Yes", 
     credit_cards: true, 
     image: "https://dripper-dev.s3-us-west-1.amazonaws.com/uploads/medium_9b676fc6-814c-4f5f-a03b-5a5f650fc7aa.jpg?AWSAccessKeyId=AKIAJPYWBHET4VVL5NUA&Signature=bhPpdV6bxroZZ0Lfk2jN6aPht7A%3D&Expires=1427916453", 
     name: "Ristretto", 
     twitter_username: null, 
     curator_image: "https://dripper-dev.s3-us-west-1.amazonaws.com/uploads/basic_uploader/Profile/9d77af52-033b-4bd9-8cb4-8b961f366392.jpg?AWSAccessKeyId=AKIAJPYWBHET4VVL5NUA&Signature=K1VuT3Oe8ncTdX%2FA9H7s4XJcQ84%3D&Expires=1427916453", 
     curator_name: "Jack White", 
     curator_about: "this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test ", 
     profile_id: 17, 
     profile: { 
      id: 17, 
      name: "Jack White", 
      about: "this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test this is a test ", 
      action_url: null, 
      action_caption: null, 
      published: null, 
      image: { 
       url: "https://dripper-dev.s3-us-west-1.amazonaws.com/uploads/basic_uploader/Profile/9d77af52-033b-4bd9-8cb4-8b961f366392.jpg?AWSAccessKeyId=AKIAJPYWBHET4VVL5NUA&Signature=E%2BgWHlMRcIXDeMOTmLhfdU8YyTc%3D&Expires=1427916459" 
      }, 
      user_id: 9, 
      created_at: "2015-03-24T20:07:31.043Z", 
      updated_at: "2015-03-24T20:09:01.518Z" 
     }, 
     attachment_ids: [ 
     30 
     ] 
    }, ...

救了我的位置，对象我的路线window.loc，然后在浏览器控制台检查： loc.get('profile').get('name') 回报"Jack White"这是正确的，但我对到底为什么这种变化有差别不清楚。侧加载（放置相关对象的ID和包含这些对象的顶级数组）仅适用于烬数据中的一对多关系？

任何和所有的输入是受欢迎的，我仍然是新的烬数据。

来源

2015-03-25 Jessiah

最小可重复性测试用例。帮助我们帮助你。 – givanse 2015-03-25 03:09:16

你的location.json包含'cprofile_id：17'而不是'profile_id：17'。也许这只是一个打字错误，但也可能是问题所在。 – kunerd 2015-03-25 10:02:21

我很抱歉，'cprofile'是json中的一个错字。在发布之前我尝试的最后一件事情之一是创建一个名为cprofile的新模型来测试配置文件是否为关键字。 – Jessiah 2015-03-25 19:04:12

我发现解决方案在json中将profile_id: xx重命名为profile: xx。我认为model_id是注意归属关系的正确方法，但是实际上，ember只需要模型名称。希望这有助于未来的人！

来源

2015-03-30 23:37:26 Jessiah

我可能在这里很愚蠢，但您的位置模型没有配置文件字段 - 大概是因为它属于配置文件。但是，如果没有该字段，您将无法在位置上执行.get（'profile'）。

来源

2015-03-25 09:21:27 millerbr

我确实有位置模型中的配置文件字段：'profile：DS.belongsTo（'profile'）' - 我是否还需要profile_id字段？ – Jessiah 2015-03-25 19:04:54

啊，所以你呢，我正在愚蠢！你不应该需要profile_id。看看Kunerd说过的话，可能是sideloading已经做错了 – millerbr 2015-03-26 10:34:24

您的locations.json中没有侧面加载的配置文件对象，就像附件一样。它看起来更像是：

{ 
    locations: [{ 
    id: 12, 
    ... 
    profile_id: 17, 
    attachment_ids: [...] 
    }], 
    attachments: [...], 
    profiles: [...] /* for multiple profiles, or*/ 
    profile: {...}  /* for a single side-loaded model */ 
} 
...

否则，如果要加载profile模型异步的，你需要在你location模型，其声明如下：

profile: DS.belongsTo('profile', { 
    async: true 
}

来源

2015-03-26 10:07:11 kunerd

Ember数据一对多关系不起作用

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