尝试使用hasMany关系来保存（）模型时，无法读取属性'determinRelationshipType' [英] Cannot read property 'determineRelationshipType' when trying to save() Model with hasMany Relationship

问题描述

当尝试使用具有hasMany关系的LocalStorage Adapter（使用Ember CLI）保存记录时，我遇到了一个棘手的错误。我想要做的是，当用户点击添加到包按钮时，将产品保存到包中。我的控制台出现这个错误：

未捕获TypeError：无法读取未定义的属性'determinRelationshipType' / p>

产品型号：

 从ember-data导入DS; 
 
导出默认DS.Model.extend（{
 ... 
包：DS.belongsTo（'bag'）
 
}）; 
  

包包型号：

 从ember-data导入DS; 
 
导出默认DS.Model.extend（{
产品：DS.hasMany（'product'，{async：true}）
}）; 
  

控制器中的操作如下：

 从ember导入Ember; 
 
导出默认Ember.ArrayController.extend（{
 actions：{
 addToBag：function（model）{
 var bag = this.store.createRecord（'bag '）; 
 bag.get（'products'）然后（function（products）{
 products.pushObject（model）; 
 bag.save（）; 
}） ; 
} 
} 
}）; 
  

有谁会有什么想法出现了什么问题？还是另一种方法呢？看起来像一个类似的问题在这里被报告。非常感谢任何帮助！谢谢你提前。

解决方案

我重新调查了这个问题，看起来像最近更新到余烬-localStorage的适配器。具体来说， DS.RelationshipChange的引用已被删除。

在我的 bower.json 中，我定义了我的 ember-data 返回到 1.0.0-beta.11 ，并将我的 ember-localstorage-adapter 版本定义为最新版本， 0.5.0 。以下是 bower.json 文件中的相关信息：

  {
name：****，
dependencies：{
ember：1.8.1，
ember-data：1.0。 0-beta.11，
ember-localstorage-adapter：〜0.5.0，
} 
} 
  

此错误不再出现！

I'm running into a tough bug when trying to save a record with the LocalStorage Adapter that has a hasMany relationship (Using Ember CLI). What I'm trying to do is save a product to a bag when a user clicks on a "Add to Bag" button. I'm getting this error in my console:

Uncaught TypeError: Cannot read property 'determineRelationshipType' of undefined

Product Model:

import DS from 'ember-data';

export default DS.Model.extend({
  ...
  bag: DS.belongsTo('bag')

});

Bag Model:

import DS from 'ember-data';

export default DS.Model.extend({
  products: DS.hasMany('product', {async: true})
});

Here's the action in the controller:

import Ember from "ember";

export default Ember.ArrayController.extend({
  actions: {
    addToBag: function(model) {
      var bag = this.store.createRecord('bag');
      bag.get('products').then(function(products) {
        products.pushObject(model);
        bag.save();
      });
    }
  }
});

Would anyone have an idea as to what's going wrong? Or another way to approach this? Seems like a similar issue was reported here. Would greatly appreciate any help! Thank you in advance.

解决方案

I re-investigated this issue and looks like it was addressed in a recent update to ember-localstorage-adapter. Specifically, the reference to DS.RelationshipChange was removed.

In my bower.json, I defined my ember-data version back to 1.0.0-beta.11 and also defined my ember-localstorage-adapter version to the latest version, 0.5.0. Here's the relevant info in the bower.json file:

{
  "name": "****",
  "dependencies": {    
    "ember": "1.8.1",
    "ember-data": "1.0.0-beta.11",
    "ember-localstorage-adapter": "~0.5.0",
  }
}

This error is no longer appearing!

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