javascript - 错误子状态

Question

当嵌套路由中发生错误时，抛出的错误会冒泡到父路由，直到其中一个捕获它。
可以处理错误的根级别是Application的。但是，setupController ApplicationRoute 的钩子(Hook)从 ErrorRoute 转换后触发与 undefined语境。
代码示例可以在这里查看:http://jsbin.com/ucanam/2563/edit (输出在控制台中给出)
在 ApplicationRoute我指望它的初始模型在从 ErrorRoute 转换后会出现。 .为什么重置为undefined否则我该如何解决？

编辑:

这是一些相关的代码:

App = Ember.Application.create({});

App.Router.map(function() {
  this.route('articles');
});

App.ApplicationRoute = Ember.Route.extend({
  model: function() {
    /* model hook is not being called when the error bubbles up (nor afterModel hook) */
    /* This is the model expected in Application level */
    return [
      {"key1": "val1"},
      {"key2": "val2"},
      {"key3": "val3"}
    ];
  },

  setupController: function(controller, model) {
    /* This hook is called in the usual scenario, when ApplicationRoute first 
       invoked, with same model as defined in the model hook */
    /* However, it is also invoked after an error thrown from Articles Route,
       what happens then is:
       typeof model == "undefined" */
    console.log("SetupController invoked in Application Route:", model);    
  }
});

App.ArticlesRoute = Ember.Route.extend({
  model: function() {
    /* The following throws the error */
    Ember.$.ajax("http://");
  }
});

Answer 1

路线从不“有”模型，它只有一个模型钩子(Hook)，用于获取路线的模型。当转换到错误时，不会尝试解决任何模型(如果出现错误，您将处于无限循环中)。

如果您的模型是静态内容，您可以在 setupController 中设置它。