Ember.js错误：使用ember-data保存记录时未找到’id’的模型

我正在Ember.js和Ruby on Rails开发简单的CRUD应用程序

版本：

 DEBUG: Ember : 1.6.0-beta.3 ember.js?body=1:3917 DEBUG: Ember Data : 1.0.0-beta.7+canary.f482da04 ember.js?body=1:3917 DEBUG: Handlebars : 1.3.0 ember.js?body=1:3917 DEBUG: jQuery : 1.11.0 

Ruby on Rails 4.0.3

我使用Railscasts教程相当不错，但有些东西已经发生了很大变化（例如ember-data）。

Railscasts Ember教程github源代码

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当我保存记录时，它会抛出2个exception：

 Error: No model was found for 'id' at new Error (native) at Error.EmberError (http://localhost:3000/assets/ember.js?body=1:2979:23) at Ember.Object.extend.modelFor (http://localhost:3000/assets/ember-data.js?body=1:9806:33) at JSONSerializer.extend.extractSingle (http://localhost:3000/assets/ember-data.js?body=1:3019:28) at apply (http://localhost:3000/assets/ember.js?body=1:7984:27) at superWrapper [as extractSingle] (http://localhost:3000/assets/ember.js?body=1:7569:15) at Ember.Object.extend.extractSave (http://localhost:3000/assets/ember-data.js?body=1:2509:21) at Ember.Object.extend.extractCreateRecord (http://localhost:3000/assets/ember-data.js?body=1:2438:21) at Ember.Object.extend.extract (http://localhost:3000/assets/ember-data.js?body=1:2366:37) at http://localhost:3000/assets/ember-data.js?body=1:10434:32 

第二个错误是：

 Uncaught Error: Assertion Failed: Error: No model was found for 'id' ember.js?body=1:118 Ember.assert ember.js?body=1:118 RSVP.onerrorDefault ember.js?body=1:46739 __exports__.default.trigger ember.js?body=1:9493 Promise._onerror ember.js?body=1:10217 publishRejection ember.js?body=1:10624 (anonymous function) ember.js?body=1:16010 DeferredActionQueues.invoke ember.js?body=1:8592 DeferredActionQueues.flush ember.js?body=1:8642 Backburner.end ember.js?body=1:8095 Backburner.run ember.js?body=1:8152 apply ember.js?body=1:7984 run ember.js?body=1:6630 hash.success ember-data.js?body=1:1524 fire jquery.js?body=1:3100 self.fireWith jquery.js?body=1:3212 done jquery.js?body=1:9311 callback jquery.js?body=1:9721 

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码：

-router.js

 EmTasks.Router.map(function(){ return this.route("lists", { path: '/' }); }); EmTasks.ListsRoute = Ember.Route.extend({ model: function() { return this.store.find('list'); } }); 

-controller / lists_controller.js

 EmTasks.ListsController = Em.ArrayController.extend({ addList: function() { this.store.createRecord('list', { name: this.get('newListName') }).save(); return this.set('newListName', ''); } }); 

-models / list.js

 EmTasks.List = DS.Model.extend({ name: DS.attr('string') }); 

-templates / lists.handlebars

 
 
em-tasks
 {{view Ember.TextField valueBinding="newListName" action="addList"}} {{newListName}} {{#each controller}} 
{{name}}
 {{/each}}  

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Github存储库包含所有代码：

https://github.com/maciejkowalski/em-tasks/tree/96539b93eab48cc0405e9644f604242832889762

Answer 1

我找到了解决方案。

只需在Rails中将self.include_root_in_json设置为true 。

-config /初始化/ wrap_parameters.rb

 ActiveSupport.on_load(:active_record) do self.include_root_in_json = true end 

然后我们得到JSON响应

 { list: { id: 1, name: "icebox" } } 

代替

 { id: 1, name: "icebox" } 

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更多信息：

为什么我在Ember中成功删除deleteRecord后出现错误

没有JSON root的Ember.js REST适配器