EmberJS中嵌套路由的状态 [英] State of nested routes in EmberJS

问题描述

我有一个这样的路由结构：

I have a route structure like this:

this.resource('A',function(){
  this.resource('B',function(){
    this.route('C');
  });
});

有没有办法可以查看 A ，其中 B 的嵌套路线目前处于活动状态？

Is there a way I can check in A, which nested route of B is currently active?

由于可用性原因，我在 A ，它还包含 BC 和 B.index 的链接但我只需要显示这两个链接之一。

For usability reasons I have a navigation in A, which also holds links for B.C and B.index But I only want to show one of those two links.

推荐答案

应用程序控制器上有一个属性 currentPath 。您可以使用它来查找当前路由器中的哪条路径。这是整个路径，所以它将是 ABC 或 ABindex 。

The application controller has a property on it currentPath. You can use that to find out which path in the router you're currently on. It's the entire path, so it'd be A.B.C or A.B.index.

App.ColorsController = Ember.ArrayController.extend({
  needs:'application',
  atIndex: Em.computed.equal('controllers.application.currentPath', 'colors.index')
});

示例： http://emberjs.jsbin.com/nobima/2/edit

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