Ember模型生命周期，并恢复到原始状态 [英] Ember model lifecycle, and reverting to original state

问题描述

我正努力了解有关余烬模型生命周期的所有信息。我创建了此jsfiddle 来说明我的问题。单击列表中的一项，编辑值，然后单击版本链接以返回到列表时，出现以下错误：

I'm struggling to understand everything about the ember model lifecycle. I have created this jsfiddle to illustrate my problem. When clicking on one of the entries in the list, editing a value, and clicking the versions link to go back to the list, I get the following error:

未捕获错误：处于状态rootState.loaded.updated.uncommitted时，尝试处理事件 loadedData 。调用{}

这是什么原因？我知道对象状态现在很脏，但是打开列表时如何强制刷新所有对象？

What is causing this? I get that the object state is now dirty, but how can I force a refresh of all objects when the list is opened?

此外，关于如何丢弃所有对象的任何建议如果不保存表单，属性会更改吗？我正在考虑克隆对象，在编辑表单中使用该克隆，并在保存时将其与原始对象合并。

Also, any suggestions on how to discard all changes to the properties if the form is not saved? I was thinking about cloning the object, using that clone in the edit form, and merging that with the original when saving. Not as easy as I first imagined.

使用最新的余烬和余烬数据。

Using latest ember and ember-data.

推荐答案

与@tchak进行快速讨论之后，一个解决方案可能是覆盖Version路由的退出功能，并回滚当前模型。

After quick discussion with @tchak, a solution could be to override the Version route's exit function, and rollback the current model.

App.VersionRoute = Ember.Route.extend({
  exit: function() {
    var controller = this.controllerFor(this.templateName),
        content = controller.get('content');

    if (content.get('isDirty')) {
      content.get('transaction').rollback(); 
    }
    this._super();
  }
});

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