Ember - 控制器的内容和模型属性有什么区别 [英] Ember - What's the difference between controller's content and model property

问题描述

在 ember 的官方指南中，它提供了两种设置控制器底层对象的方法.首先是设置模型属性:

App.SongsRoute = Ember.Route.extend({设置控制器:功能(控制器，播放列表){controller.set('model', playlist.get('songs'));}});

二是设置内容属性:

MyApp.listController = Ember.ArrayController.create();$.get('people.json', function(data) {MyApp.listController.set('content', data);});

这两个属性代表同一个东西吗?我应该使用哪种方式?

解决方案

看来它们是一回事，

https://github.com/emberjs/ember.js/blob/v1.3.0/packages/ember-runtime/lib/controllers/controller.js#L44

Ember.ControllerMixin = Ember.Mixin.create(Ember.ActionHandler, {....模型: Ember.computed.alias('content'),....

model 属性是 content 的别名.

还有，

https://github.com/emberjs/ember.js/blob/v1.3.0/packages/ember-routing/lib/system/route.js#L849

其中提到，

<块引用>

默认情况下，`setupController`钩子设置`content`属性模型"的控制器.

更新自 v1.7.0 起已弃用，并将代码放在 mixin 中.https://github.com/emberjs/ember.js/blob/v2.12.0/packages/ember-runtime/lib/mixins/controller.js以及相关的弃用 mixin.https://github.com/emberjs/ember.js/blob/v2.12.0/packages/ember-runtime/lib/mixins/controller_content_model_alias_deprecation.js

In ember's official guide, it provides two ways to set the controller's underlying object. First is setting the model property:

App.SongsRoute = Ember.Route.extend({
    setupController: function(controller, playlist) {
        controller.set('model', playlist.get('songs'));
    }
});

Second is setting the content property:

MyApp.listController = Ember.ArrayController.create();

$.get('people.json', function(data) {
    MyApp.listController.set('content', data);
});

Are these two properties represent the same thing? Which way should i use?

解决方案

It seems they are the same thing,

https://github.com/emberjs/ember.js/blob/v1.3.0/packages/ember-runtime/lib/controllers/controller.js#L44

Ember.ControllerMixin = Ember.Mixin.create(Ember.ActionHandler, {
....
model: Ember.computed.alias('content'),
....

The model property is an alias for content.

Also,

https://github.com/emberjs/ember.js/blob/v1.3.0/packages/ember-routing/lib/system/route.js#L849

which mentions that,

By default, the `setupController` hook sets the `content` property of
the controller to the `model`.

UPDATE Deprecated since v1.7.0 and the code placed in a mixin. https://github.com/emberjs/ember.js/blob/v2.12.0/packages/ember-runtime/lib/mixins/controller.js Along with the related deprecation mixin. https://github.com/emberjs/ember.js/blob/v2.12.0/packages/ember-runtime/lib/mixins/controller_content_model_alias_deprecation.js

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