燼解析適配器的hasMany錯誤

Question

在上parse.com數據庫我有一個表Item具有以下字段：

"objectId": "O0NkhZAcMd", 
"price": "100", 
"topping": [ 
    { 
     "__type": "Pointer", 
     "className": "Topping", 
     "objectId": "iKbMWHZrEB" 
    }, 
    { 
     "__type": "Pointer", 
     "className": "Topping", 
     "objectId": "yIIkePYKSS" 
    }, 
    { 
     "__type": "Pointer", 
     "className": "Topping", 
     "objectId": "lZJ4Kpqodf" 
    }, 
... 
] 

摘心有場title和price。
對於這個數據庫，我有以下型號：

應用程序/模型/ item.js：

import DS from 'ember-data'; 

export default DS.Model.extend({ 
    objectId: DS.attr(), 
    price: DS.attr(), 
    topping: DS.hasMany('topping', {async: true}), 
}); 

應用程序/模型/ topping.js：

import DS from 'ember-data'; 

export default DS.Model.extend({ 
    objectId: DS.attr(), 
    price: DS.attr(), 
    title: DS.attr(), 
}); 

當我在app/models/item.js中加入了topping: DS.hasMany('topping', {async: true})我開始出現以下錯誤：

Error while processing route: menu Assertion Failed: Ember Data expected a number or string to represent the record(s) in the `topping` relationship instead it found an object. If this is a polymorphic relationship please specify a `type` key. If this is an embedded relationship please include the `DS.EmbeddedRecordsMixin` and specify the `topping` property in your serializer's attrs object. 

我不知道我需要指定哪種類型以及在哪裏做。
可能有人可以幫助我嗎？

我用：

• 燼1.13.7
• 燼數據1.13.8
• 燼-解析適配器0.5.3

Answer 1

嘗試添加belongs_to關係到你topping模型。

import DS from 'ember-data'; 

export default DS.Model.extend({ 
    objectId: DS.attr(), 
    price: DS.attr(), 
    title: DS.attr(), 
    item:  DS.belongsTo('item', { async: true }) 
});