使用:
- Ember从 2013 年 1 月 3 日开始提交 a5d45f66e1)
- Ember-Data从 2013 年 1 月 4 日起提交 508479dee7
与这个问题 ('Unable to get hasMany association')类似,我无法直接访问嵌入的 hasMany 记录,但可以通过模型的 content 属性看到它们。
对于 JSON:
{
"ref_book_search":{
"query":"har",
"results":[
{
"publisher":{
"name":"Pangolin",
"created":"2012-09-10T18:38:27.259515",
"id":"3d2028e4fb91181e1a6e012313914f821",
"is_active":true,
"main_url":null,
"resource_uri":"/api/v1/ref_publisher/3d2028e4fb91181e1a6e012313914f821"
},
"genre":"romcom",
"id":"cc671f00fc2711e1e41612313914f821",
"resource_uri":"/api/v1/ref_book/cc671f00fc2711e1e41612313914f821",
"title":"Harry Placeholder and the Goblet of PBR"
},
{
"publisher":{
"name":"Hoof & Mouth",
"created":"2012-10-10T14:31:27.259515",
"id":"3d200e9afb9811e1a27417383914f821",
"is_active":true,
"main_url":null,
"resource_uri":"/api/v1/ref_publisher/3d200e9afb9811e1a27417383914f821"
},
"genre":"horror",
"id":"cc621f08fc2711e1b81612313914e821",
"resource_uri":"/api/v1/ref_book/cc621f08fc2711e1b81612313914e821",
"title":"Harvey Weinstein Holiday Cookbook"
}
]
}
}
和 app.js(注意 map 语句,这是上一个问题中建议的解决方案):
var App = Ember.Application.create();
DS.RESTAdapter.configure("plurals", {"ref_book_search" : "ref_book_search"});
App.store = DS.Store.create({
revision: 11,
adapter: DS.RESTAdapter.create({
bulkCommits: false,
namespace: "api/v1"
})
});
DS.RESTAdapter.map('App.RefBookSearch', {
primaryKey: 'query'
});
App.store.adapter.serializer.map('App.RefBookSearch', {
results: {embeddded: 'load'}
});
App.store.adapter.serializer.map('App.RefBook', {
publisher: {embeddded: 'load'}
});
App.RefPublisher = DS.Model.extend({
name : DS.attr('string'),
created : DS.attr('date'),
isActive : DS.attr('boolean'),
mainUrl : DS.attr('string')
});
App.RefBook = DS.Model.extend({
publisher: DS.belongsTo('App.RefPublisher'),
title : DS.attr('string'),
genre : DS.attr('string')
});
App.RefBookSearch = DS.Model.extend({
query: DS.attr('string'),
results: DS.hasMany('App.RefBook')
});
App.Router.map(function(match) {
match('/').to('query'),
match('/query/:ref_book_search_id').to('query')
});
App.QueryController = Ember.Controller.extend({
bookSearch: null,
results: []
});
App.QueryRoute = Ember.Route.extend({
setupControllers: function(controller, refBookSearch) {
controller.set('bookSearch', refBookSearch)
controller.set('results', refBookSearch.get('results').content)
}
})
App.initialize();
起初一切看起来都很好,就像其他海报一样:
search = App.RefBookSearch.find('ha')
search.get('query')
// => "ha"
results = search.get('results')
results.get('firstObject') instanceof App.RefBook
// => true
但是之后:
results.forEach(function(result) { console.log(result.get('title')) })
// => TypeError: Cannot call method 'hasOwnProperty' of undefined
通过内容访问显示数据存在:
results.content.forEach(function(result) { console.log(result.title) })
// => Harry Placeholder and the Goblet of PBR
// => Harvey Weinstein Holiday Cookbook
现在,如果我再次尝试直接访问,我会得到一个稍微不同的错误:
results.forEach(function(result) { console.log(result.get('title')) })
// => undefined x 2
这可能与几天前提交的此错误有关,也可能无关。
我觉得我在这里尝试了一切;我希望我只是缺少一些简单的东西。任何指针都非常感谢。谢谢。