序列化关系ember-data

serializing relationships ember-data

本文关键字：ember-data 关系 序列化      更新时间：2023-09-26

这是我的json响应:

单品:

{
    "data": {
        "id": 1,
        "username": "rodzzlessa",
        "slug": "rodzzlessa"
     }
}

集合:

{
"data": [
    {
        "id": 34,
        "name": "HDG common nails 50lbs",
        "slug": "hdg-common-nails-50lbs4569",
        "description": "Accusantium ipsam impedit omnis sint dolorum.",
        "image_src": "nail-box-angle.png",
        "categories": {
            "data": [
                {
                     "id": 2,
                     "name": "nails",
                    "image_src": "nails-icon.png"
                }
             ]
         }
     }
  ]
}

我能够为主响应创建一个序列化器:

export default DS.RESTSerializer.extend(DS.EmbeddedRecordsMixin, {
    extractArray: function(store, typeClass, payload) {
        payload.products = payload.data;
        delete payload.data;
        return this._super(store, typeClass, payload);
    }
});

一切都很好，我遇到的问题是关系，在这种情况下，一个categories: DS.hasMany('category')。我得到的错误是:

A (subclass of DS.Model) record was pushed into the store with the value of categories being '{data: [object Object]}', but categories is a hasMany relationship so the value must be an array.

所以我的问题是我应该编辑哪个方法来序列化关系，就像我对它的父方法一样?我已经添加了DS.EmbeddedRecordsMixin，使我的生活更容易与关系。

如果我做对了，错误是由于在categories键内有一个对象:

A (subclass of DS.Model) record was pushed into the store with the value of categories being '{data: [object Object]}', but categories is a hasMany relationship so the value must be an array.

因此，您必须从categories: { "data": [...] }块中提取数组到categories: [...]。

你可以像这样简单地遍历负载:

var idx, key, item;
var len = payload.data.length;
for (idx=0; idx<len; idx++) {
  item = payload.data[idx];
  for (key in item) {
    if (item[key].hasOwnProperty('data')) {
      item[key] = item.data;
    }
  }
}
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