我正在尝试根据控制器上的切换属性管理对象数组的排序显示。因此,我无法使用sortProperties
可用的默认ArrayController
。
预期的结果是,当我第一次点击"编辑"按钮我能够对项目进行更改,当我单击保存时,它应重新呈现{{#each}}
块以显示新的名称顺序。
这是车把上的错误还是我做错了什么?
JSBin:Handlebars not re-rendering when property toggled
HTML:
<script type="text/x-handlebars">
{{outlet}}
</script>
<script type="text/x-handlebars" data-template-name="index">
<h4>Raw \{{sorted_list}} property</h4>
{{sorted_list}}<br/>
<h4>Iterated `\{{#each item in sorted_list}}` property</h4>
<ul>
{{#each item in sorted_list}}
{{#if editing}}
<li>{{input type="text" value=item.name}}</li>
{{else}}
{{item.name}}<br/>
{{/if}}
{{/each}}
</ul>
{{#if editing}}
<button {{action "edit_stuff"}}>Save</button>
{{else}}
<button {{action "edit_stuff"}}>Edit</button>
{{/if}}
</script>
JS:
var App = Ember.Application.create();
App.Router.map(function() {});
App.Person = Ember.Object.extend({
toString: function() {
return this.name;
}
});
App.IndexRoute = Ember.Route.extend({
model: function() {
return [
App.Person.create({name: "Jules"}),
App.Person.create({name: "Zed"}),
App.Person.create({name: "Vincent"})
];
}
});
App.IndexController = Ember.ArrayController.extend({
editing: false,
sorted_list: (function() {
return this.sort_people();
}).property('editing'),
sort_people: function() {
var sorted;
sorted = this.get('content');
sorted.sort(function(a, b) {
return Ember.compare(a.name, b.name);
});
this.set('content', sorted);
return sorted;
},
actions: {
edit_stuff: function() {
this.sort_people();
this.toggleProperty('editing');
}
}
});
答案 0 :(得分:2)
你可以像这样工作
App.IndexController = Ember.ArrayController.extend({
editing: false,
sorted_list: (function() {
return this.get('content').sortBy('name');
}).property('editing'),
actions: {
edit_stuff: function() {
this.toggleProperty('editing');
}
}
});