Question

在parse.com上的数据库中，我有一个表Item，其中包含以下字段：

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

Topping有一个字段title和price 对于这个数据库，我有以下模型：

应用/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}),
});

应用/模型/ topping.js：

import DS from 'ember-data';

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

当我在topping: DS.hasMany('topping', {async: true})中添加app/models/item.js时，我开始收到以下错误：

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.

我不知道我需要指明哪种类型以及在何处进行操作可能有人可以帮帮我吗？

我用：

ember 1.13.7
ember-data 1.13.8
ember-parse-adapter 0.5.3

Answer 1

尝试将belongs_to关系添加到您的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 }) 
});

ember parse adapter hasMany错误

1 个答案: