EmberJS取消（回滚）对象与HasMany [英] EmberJS cancel (rollback) object with HasMany

问题描述

假设我有一个ParentObject，其中有有许多项目。我想在我的添加路线中实现我的取消功能，该路线将回滚所有内容。

简而言之，我有：

父对象 IsNew 和 IsDirty

可能...

项目[]也将是 IsNew 和 IsDirty

所以基本上，我只想杀死我的NewController中的那些...

这里出现错误的代码：

$ $ $ $ $ $ $ $ $ $ $;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

this.get（model）。rollback（）;

//一些重定向的东西

像它看起来一样简单崩溃...

这是崩溃的控制台输出

 未捕获的错误：尝试处理&AppeParentObject上的事件`didSetProperty：ember572：fixture-0>而在状态root.deleted.saved。调用了{name：number，oldValue：undefined，originalValue：undefined，value：undefined}。 
  

如果有人能弄清楚什么可能是错误的，并解释我做错了什么，会很漂亮赞赏！

编辑**

玩过交易，清除关系，没有成功...

解决方案

我刚遇到这个。对我来说，这是发生的，因为我在执行回滚时有观察员在操作。我不得不通过添加一个检查功能来检查model.isDeleted来防止它们的触发。如果不是，我让它通过，否则阻止它。这似乎为我解决了。

let's say I have a ParentObject that hasMany Items. I want to implement my Cancel feature in my Add route that will rollback everything.

In a nutshell, I have :

ParentObject that IsNew and IsDirty

and potentially...

Items[] that will also be IsNew and IsDirty

So basically, I simply want to kill those within my NewController...

Here come the faulty code :

this.get("items").forEach(function(item)
{
   item.deleteRecord();
});

this.get("model").rollback();

// Some redirection stuff

As simple as it may looks, it crashes...

Here's the console output for the crash

Uncaught Error: Attempted to handle event `didSetProperty` on <App.ParentObject:ember572:fixture-0> while in state root.deleted.saved. Called with {name: number, oldValue: undefined, originalValue: undefined, value: undefined}. 

If someone could figure out what may be faulty and explain what I'm doing wrong, would be pretty appreciated !

EDIT **

I played around with transaction and clearing the relationships with no success...

解决方案

I JUST ran into this. For me it was happening because I had observers in operation when I was performing the rollback. I had to prevent them from firing by adding in a check in the function to check for "model.isDeleted". If it wasn't, I let it through, otherwise prevent it. That seemed to solve it for me.

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