给定一个具有类似上下文的视图{ id: 1, form_id: 5}
,我想{{action}}
使用form_id
.
我的视图代码如下所示:
<script type="text/x-handlebars" data-template-name="group">
{{action showForm form_id href=true}}
</script>
我的路由器中的操作如下所示:
showForm: function(router, event) {
var form_id = event.context;
router.transitionTo('root.form', { id: form_id });
},
我收到一条错误消息:
Uncaught Error: assertion failed: You must specify a target state for event 'showForm' in order to link to it in the current state 'root.index'.
我猜问题出在我为 设置上下文的方式上transitionTo
,但我一直无法找出正确的解决方案。
这是重现问题的完整代码:
<script type="text/x-handlebars" data-template-name="application">
{{outlet}}
</script>
<script type="text/x-handlebars" data-template-name="group">
{{action showForm form_id href=true}}
</script>
MyApp = Ember.Application.create({
autoinit: false
});
MyApp.router = Ember.Router.create({
root: Ember.Route.extend({
index: Ember.Route.extend({
route: '/',
// Throws error:
// You must specify a target state for event 'showForm' in
// order to link to it in the current state 'root.index'
//
showForm: function(router, event) {
var form_id = event.context;
router.transitionTo('root.form', { id: form_id });
},
// Won't work because form deserialize finds id, not form_id
//showForm: Em.Route.transitionTo('root.form'),
// This won't work either
// showForm: Em.Route.transitionTo('root.form', { id: this.form_id }),
connectOutlets: function( router, context ){
var group = Em.Object.create({ id:1, form_id: 5 });
router.get( 'applicationController' ).connectOutlet( 'group', group );
}
}),
form: Ember.Route.extend({
route: '/form/:id',
serialize: function( router, context ){
return { id: context.id }
},
deserialize: function( router, context ){
var form = Em.Object.create({ id: 5, name: 'my form' });
return MyApp.Form.find( context.id );
},
connectOutlets: function( router, context ){
// left out for fiddle example
}
})
})
});
MyApp.ApplicationController = Ember.Controller.extend({});
MyApp.GroupController = Em.ObjectController.extend({});
MyApp.GroupView = Em.View.extend({ templateName: 'group' });
MyApp.initialize(MyApp.router);
和相应的小提琴: