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I'm using Ember-Rails to build an Ember front-end app with a Rails API for a beckend. I've been working on implementing authentication, and I arrived at the following error: Cannot read property 'extend' of undefined when trying to extend a route as follows: 

App.AdminRoute = App.AuthenticateRoute.extend({
    model: function(params) {
        return this.store.find('user', params.id);
    },
});

And I had an AuthenticateRoute defined as follows: 

App.AuthenticateRoute = Ember.Route.extend({
    //yada yada
});

I was more-or-less following a guide found on: http://www.embercasts.com/episodes/client-side-authentication-part-2

I am not sure why this is not working, but I noticed my AuthenticateRoute could be extended from other routes, which I find extremely strange.

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1 回答 1

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事实证明，正如我们大多数人所知，Ember-Rails 预编译了所有这些文件，而您却没有看到它（使用我认为是 Barber gem）。我没有想到的是，当它组合所有这些文件时，它（据我所知）将它们按字母顺序排列。因此， myAdminRoute被声明为扩展AuthenticateRoute之前AuthenticateRoute甚至被声明，从而产生错误。我还不确定如何解决这个问题——

  • 一个天真的解决方法是简单地将文件名从 更改admin_route.js为zadmin_route.js，所以它出现在 之后authenticate_route.js，尽管出于明显的原因这并不可取。
  • 或者，也可以通过关闭标志来关闭 Ember-Rails 中的预编译。（见此）

如果有人有更好的选择，请在下面发表评论，否则我会在遇到解决方案时更新。

于 2014-06-16T20:22:06.463 回答