Question

我在ember中有一个模型，部分看起来像这样：

opt1votes: DS.hasMany('subscriber'),
opt2votes: DS.hasMany('subscriber'),
opt3votes: DS.hasMany('subscriber'),
opt4votes: DS.hasMany('subscriber'),
opt5votes: DS.hasMany('subscriber'),
keyword: DS.belongsTo('keyword'),
winAttachment: DS.belongsTo('asset'),
followAttachment: DS.belongsTo('asset'),
attachment: DS.belongsTo('asset'),

如果此模型没有将id分配给winAttachment，followAttachment和附件属性（这些在系统中是可选的），则会出现此问题。而不是没有为这些属性加载任何东西，ember正在接触我们的api并获得此响应：

{"asset":[]}

这导致3＆＃34;资产＆＃34;使用＆＃34; undefined＆＃34;创建的模型作为所有属性：http://screencloud.net/v/nZDD

我的问题是为什么没有id的ember加载以及如何停止？我应该为空模型请求返回不同的内容，以便ember知道模型是不完整的吗？

感谢所有帮助！

编辑：来自对象的原始JSON：

{
  "campaign": [
    {
      "id": 360,
      "name": "aa test",
      "message": "Thanks",
      "followMessage": "",
      "followTime": "",
      "opt1": "",
      "opt2": "",
      "opt3": "",
      "opt4": "",
      "opt5": "",
      "opt1votes": [],
      "opt2votes": [],
      "opt3votes": [],
      "opt4votes": [],
      "opt5votes": [],
      "singleEntry": false,
      "winnerNumber": "",
      "winningMessage": "",
      "winners": [],
      "tagIds": "",
      "campaignType": "Response",
      "starred": false,
      "draft": false,
      "completed": false,
      "archived": false,
      "optins": 0,
      "optouts": 0,
      "keyword": 352,
      "paused": false,
      "startDate": 1396475400,
      "startDateDisplay": "Apr 02, 2014 4:50PM",
      "percentComplete": 0,
      "created": "Wednesday, Apr 2 2014 4:49PM",
      "attachment": "",
      "followAttachment": "",
      "winAttachment": "",
      "entryQuota": 0,
      "createdSorting": 1396475366,
      "subLists": "",
      "subs": "",
      "endCampaign": false,
      "pageUrl": "http://l.gocella.com/T1d0NM5",
      "sentAllTime": 0,
      "sentThirtyDays": 0,
      "sentNinetyDays": 0,
      "votesAllTime": 0,
      "votesThirtyDays": 0,
      "votesNinetyDays": 0,
      "entriesAllTime": 0,
      "entriesThirtyDays": 0,
      "entriesNinetyDays": 0,
      "followsSentAllTime": 0,
      "followsSentThirtyDays": 0,
      "followsSentNinetyDays": 0
    }
  ]
}

此对象在模型中具有belongsTo关系

Answer 1

听起来，就像你将这些属性从JSON中删除一样，当强制转换为字符串时，它们的值为'undefined'，而Ember-Data认为该字符串是有效的ID。 Ember-Data期望JSON中的这些属性，并且它期望它们的有效值，无论您的系统是否认为它们是可选的。您应该在JSON中包含这三个属性，如果关系不存在，则将它们设置为null。

Ember.js属于加载未定义的模型

1 个答案: