嵌套路由错误Ember。JS和Rails
-
21-12-2019 - |
题
我有一个ember-rails应用程序,其中包含一个服务器表,以及指向每个单独服务器的链接。
这里是主要的 servers.handlebars
档案:
<table id="box-table-a">
<thead>
<th>Name</th>
<th>Operating System</th>
<th>Build Stage</th>
</thead>
<tbody>
{{#each server in controller}}
<tr>
<td>
{{#link-to 'server' server}}
{{server.name}}
{{/link-to}}
</td>
<td>{{server.operating_system}}</td>
<td>{{server.build_stage}}</td>
</tr>
{{/each}}
</tbody>
</table>
{{outlet}}
它创建了适当的表,如预期的那样。当悬停在服务器名称上时,我会在浏览器的左下角收到url: #/servers/1
, #/servers/2
, 等
但是,当我单击指向单个服务器的链接时,服务器模板不会呈现。这是我的 server.handlebars
档案:
<div>
<h2> {{name}} </h2>
<h2> {{operating_system}} </h2>
<h2> {{build_stage}} </h2>
</div>
以下是我的 server.js.coffee
位于javascripts/models文件夹中的文件:
Warthog.Server = DS.Model.extend
name: DS.attr('string')
operating_system: DS.attr('string')
build_stage: DS.attr('string')
我的 serversRoute.js.coffee
档案:
Warthog.ServersRoute = Ember.Route.extend
model: -> @store.find('server')
我的 serverRoutes.js.coffee
档案:
Warthog.ServerRoute = Ember.Route.extend
model: (params) ->
@store.find('server', params.server_id)
最后是 router.js.coffee
档案
Warthog.Router.map ->
@resource "servers", ->
@resource "server", path: "/:server_id", ->
@route "edit"
@route "create"
请注意,Chrome中的ember工具箱没有显示任何路由,并且只有在尝试导航到单个服务器时才会在控制台中抛出错误。以下是错误。
event.returnValue is deprecated. Please use the standard event.preventDefault() instead. jquery.js?body=1:5387
Ember Debugger Active VM3178:391
DEPRECATION: Action handlers contained in an `events` object are deprecated in favor of putting them in an `actions` object (error on <Ember.Route:ember430>)
at Object.triggerEvent (http://testdomain.warthog.dev/assets/ember.js?body=1:30519:13)
at trigger (http://testdomain.warthog.dev/assets/ember.js?body=1:29641:16)
at handlerEnteredOrUpdated (http://testdomain.warthog.dev/assets/ember.js?body=1:29537:11)
at http://testdomain.warthog.dev/assets/ember.js?body=1:29512:9
at eachHandler (http://testdomain.warthog.dev/assets/ember.js?body=1:29559:9)
at setupContexts (http://testdomain.warthog.dev/assets/ember.js?body=1:29511:7)
at finalizeTransition (http://testdomain.warthog.dev/assets/ember.js?body=1:29835:7)
at transitionSuccess (http://testdomain.warthog.dev/assets/ember.js?body=1:29732:13)
at invokeCallback (http://testdomain.warthog.dev/assets/ember.js?body=1:8055:19) ember.js?body=1:394
Error while loading route: TypeError {} ember.js?body=1:394
Uncaught TypeError: Object function () {
var Class = makeCtor(), proto;
Class.ClassMixin = Mixin.create(this.ClassMixin);
Class.PrototypeMixin = Mixin.create(this.PrototypeMixin);
Class.ClassMixin.ownerConstructor = Class;
Class.PrototypeMixin.ownerConstructor = Class;
reopen.apply(Class.PrototypeMixin, arguments);
Class.superclass = this;
Class.__super__ = this.prototype;
proto = Class.prototype = o_create(this.prototype);
proto.constructor = Class;
generateGuid(proto, 'ember');
meta(proto).proto = proto; // this will disable observers on prototype
Class.ClassMixin.apply(Class);
return Class;
} has no method 'create'
解决方案
短
这是使用coffe with ember时的commom错误,可能您正在使用 SomeEmberObject.extend
而不是 SomeEmberObject.extend()
.
长
当您使用 Foo = SomeEmberObject.extend
没有args,我们生成以下代码:
var Foo;
// Foo is a reference to extend, this is not what we want
Foo = SomeEmberObject.extend;
因为 Foo
只是一个延伸的理由,当 Foo.create()
被调用,这是一样的 SomeEmberObject.extend.create()
并将抛出您当前的错误。
[医]神经支配:即使你没有在代码中直接调用create,ember也会使用你声明的类,并在执行依赖注入时调用create。
使用args,extend函数被正确调用:
Foo = SomeEmberObject.extend
message: 'hello'
生成:
var Foo;
// ok
Foo = SomeEmberObject.extend({
message: 'hello'
});
所以你需要在你的代码中替换,类声明如下 Foo = SomeEmberObject.extend
到 Foo = SomeEmberObject.extend()
.
例如:
// wrong
Warthog.ServerController = Ember.ObjectController.extend
// correct
Warthog.ServerController = Ember.ObjectController.extend()