如何呈现每个关联都有自己的控制器

问题描述：

所以我的模型设置如下：

So my models are set up like this :

App.Post = DS.Model.extend
  comments: DS.hasMany 'App.Comment'

App.Comment = DS.Model.extend
  post: DS.belongsTo 'App.Post'

我正在尝试创建一个包含所有帖子和所有评论的视图，但我需要装饰评论对象。

I'm trying to create a view that has all posts and all comments display, but I need to decorate the comment objects.

这是我想要做的，但无济于事：

This is what I'd like to do but, to no avail :

<ul>
  {{#each post in controller}}
    <li>{{post.title}}</li>
    <ol>
      {{#each comment in post.comments itemController="comment"}}
        <li>{{comment.body}}</li>
      {{/each}}
    </ol>
  {{/each}}
</ul>

在 App.CommentController 中定义的属性是

我怀疑 Ember.OrderedSet 不实现 itemController param - 是否有解决方法？

I suspect that Ember.OrderedSet does not implement the itemController param - is there a workaround for this?

答

您需要使用新的失效控制标签。这将加载指定类型的视图和控制器：

You need to use the new expiremental control tag. This will load the view and controller for the specified type:

<ul>
  {{#each post in controller}}
    <li>{{post.title}}</li>
    <ol>
      {{#each comment in post.comments}}
        {{ control "comment" comment }}
      {{/each}}
    </ol>
  {{/each}}
</ul>

您需要先启用此过期功能。在加载ember之前加载：

You will need to enable this expiremental feature first. Put this before ember is loaded:

<script type='application/javascript'>
    ENV = {
        EXPERIMENTAL_CONTROL_HELPER: true
    };
</script>

另外，您需要指定控制器的注释不应该是单例，否则将只有一个控制器实例化为所有评论视图：

Also, you will need to specify that the controller for comments should not be a singleton, otherwise there will only be one controller instantiated for all comment views:

// this is needed to use control handlebars template properly per
// https://github.com/emberjs/ember.js/issues/1990
App.register('controller:comment', App.CommentController, {singleton: false });

如何呈现每个关联都有自己的控制器

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