使用ember-data处理ember.js中的路径错误时出错

时间:2014-08-27 14:42:08

标签: ember.js ember-data

我尝试使用以下版本使用ember.js和ember-data创建应用:

DEBUG: Ember      : 1.7.0
DEBUG: Ember Data : 1.0.0-beta.9
DEBUG: Handlebars : 1.2.1
DEBUG: jQuery     : 2.1.0 

我使用RESTAdapter连接到我使用node.js编写的api。

加载应用后,我不断收到以下错误:

Error while processing route: students undefined is not a function TypeError: undefined is not a function
    at http://localhost:9000/scripts/vendor/ember-data.js:12006:34
    at tryCatch (http://localhost:9000/scripts/vendor/ember.js:45818:16)
    at invokeCallback (http://localhost:9000/scripts/vendor/ember.js:45830:17)
    at publish (http://localhost:9000/scripts/vendor/ember.js:45801:11)
    at http://localhost:9000/scripts/vendor/ember.js:29069:9
    at DeferredActionQueues.invoke (http://localhost:9000/scripts/vendor/ember.js:634:18)
    at Object.DeferredActionQueues.flush (http://localhost:9000/scripts/vendor/ember.js:684:15)
    at Object.Backburner.end (http://localhost:9000/scripts/vendor/ember.js:147:27)
    at Object.Backburner.run (http://localhost:9000/scripts/vendor/ember.js:202:20)
at apply (http://localhost:9000/scripts/vendor/ember.js:18382:27)

这是我使用的代码(按照我粘贴的相同顺序加载):

app.js

var App = window.App = Ember.Application.create({
    LOG_ACTIVE_GENERATION: true,
    LOG_TRANSITIONS: true,
    LOG_TRANSITIONS_INTERNAL: false,
    LOG_VIEW_LOOKUPS: true
});

store.js

App.ApplicationAdapter = DS.RESTAdapter.extend({
    host: 'http://localhost:3000',

    serializer: DS.RESTSerializer.extend({
        primaryKey: function(type) {
            return '_id';
        },

        serializeId: function(id) {
            return id.toString();
        }
    })
});

模型/ student.js

App.Student  = DS.Model.extend({
    firstName: DS.attr('string'),
    lastName: DS.attr('string'),
    nationality: DS.attr('string'),
    createdAt: DS.attr('date')
});

路由/ app_route.js

App.StudentsRoute = Ember.Route.extend({
    model: function() {
        return this.store.find('student');
    }
});

router.js

App.Router.map(function () {
    this.resource('students', {path: '/'});
});

以下是API的回复:

{
    students: [
        {
            nationality: "Lorem",
            lastName: "Doe",
            firstName: "John",
            _id: "53f87200f3750319b4791235",
            createdAt: "2014-08-23T10:50:40.661Z"
        },
        {
            nationality: "Lorem",
            lastName: "Doe",
            firstName: "John",
            _id: "53f87299f3750319b4791234",
            createdAt: "2014-08-23T10:50:40.661Z"
        }
    ]
}

看起来商店没有从API加载数据,但JSON数据格式看起来很好。知道什么可能是错的吗?

谢谢!

3 个答案:

答案 0 :(得分:3)

所以在Stack Overflow上搜索了更多内容后,我发现序列化程序现在必须与RESTAdapter分开,所以工作代码如下:

<强> store.js

App.ApplicationAdapter = DS.RESTAdapter.extend({
    host: 'http://localhost:3000'
});

App.ApplicationSerializer = DS.RESTSerializer.extend({
    primaryKey: '_id',
    serializeId: function(id) {
        return id.toString();
    }
});

答案 1 :(得分:2)

以下是使用ember-cli的人的更新答案。

ember g adapter application #=> creates app/adapters/application.js
ember g serializer application #=> creates app/serializers/application.js

app/adapters/application.js

import DS from 'ember-data';

export default DS.RestAdapter.extend({
  host: 'http://localhost:3000'
});

app/serializers/application.js

import DS from 'ember-data';

export default DS.RESTSerializer.extend({
  primaryKey: '_id',
  serializeId: function(id) {
    return id.toString();
  }
});

答案 2 :(得分:0)

我收到了这个错误,它与任何常见的嫌疑人无关。

在coffeescript中,我开始定义一个模型。

 App.Cost = DS.Model.extend
   amount:         DS.attr 'number'
   active:         DS.attr 'boolean'

要创建第二个模型,我可以使用我的第一个模型并删除属性:

  App.Cost = DS.Model.extend

回过头来试图运行一个看似无关的模型

 localhost:3000/products

导致错误

 Error while processing route: products.index

只需确保我的模型被正确命名即可解决错误:

 App.Cost = DS.Model.extend(...)
 App.Price = DS.Model.extend(...)   <- instead of repeating the Cost model

这是可以重复制作的,所以我认为它可能对其他人有帮助。