Javascript Ember.js:对ArrayController进行分组/分区
我有一个ArrayController,我想根据特定键的值对该ArrayController的内容进行分组 例如,如果我的ArrayController中的对象是:Javascript Ember.js:对ArrayController进行分组/分区,javascript,ember.js,Javascript,Ember.js,我有一个ArrayController,我想根据特定键的值对该ArrayController的内容进行分组 例如,如果我的ArrayController中的对象是: id status name ----------------------------- 1 1 some name 2 1 some other name 3 2 blah 4 3 blah again 然后我想按状态对内容进行分组 为此,我
id status name
-----------------------------
1 1 some name
2 1 some other name
3 2 blah
4 3 blah again
然后我想按状态对内容进行分组
为此,我尝试在ArrayController中使用计算属性:
App.SomeArrayController = Ember.ArrayController.extend({
itemController: 'some-item',
status1: Ember.computed.filterBy('content', 'status', 1),
status2: Ember.computed.filterBy('content', 'status', 2),
status3: Ember.computed.filterBy('content', 'status', 3)
});
// item controller used in the ArrayController
App.SomeItemController = Ember.ObjectController.extend({
anotherKey: function () {
return 'hey ' + this.get('name');
}.property('name')
});
<!-- template to display status=1 items -->
{{#each status1}}
// displays the name (as a property from the model)
{{this.name}}
// nothing displays here
// (leading me to believe it is not being wrapped by the item controller)
{{this.anotherKey}}
{{/each}}
在模板中,这些将被显示,但它们不会被ArrayController中指定的itemControllerI包装:
App.SomeArrayController = Ember.ArrayController.extend({
itemController: 'some-item',
status1: Ember.computed.filterBy('content', 'status', 1),
status2: Ember.computed.filterBy('content', 'status', 2),
status3: Ember.computed.filterBy('content', 'status', 3)
});
// item controller used in the ArrayController
App.SomeItemController = Ember.ObjectController.extend({
anotherKey: function () {
return 'hey ' + this.get('name');
}.property('name')
});
<!-- template to display status=1 items -->
{{#each status1}}
// displays the name (as a property from the model)
{{this.name}}
// nothing displays here
// (leading me to believe it is not being wrapped by the item controller)
{{this.anotherKey}}
{{/each}}
//ArrayController中使用的项控制器
App.SomeItemController=Ember.ObjectController.extend({
另一个键:函数(){
返回'hey'+this.get('name');
}.property('名称')
});
{{{#每个状态1}
//显示名称(作为模型的特性)
{{this.name}}
//这里什么也没有显示
//(使我相信它不是由项目控制器包装的)
{{this.anotherKey}}
{{/每个}}
我做错了什么?itemController
仅在迭代控制器集合时包装项目
{{#each item in controller}}
{{item.coolItemControllerProperty}}
{{/each}}
它不适用于控制器内的任何集合。如果您尝试迭代底层模型/内容,它将不会被包装
{{#each item in content}}
{{item.coolItemControllerProperty}} // undefined
{{/each}}
{{#each item in model}}
{{item.coolItemControllerProperty}} // undefined
{{/each}}
幸运的是,您可以在模板中为这些情况指定itemController
{{#each item in status1 itemController='some-item'}}
{{item.coolItemControllerProperty}}
{{/each}}