Question

我有一个“居住”对象，住所有很多细节。从服务器返回数据时，如何使用序列化程序“extractSingle”映射其关系？我有以下内容，我收到错误“无法获取未定义或空引用的属性'toString'”。有人能告诉我这里我做错了什么吗？

App.Residence = DS.Model.extend({
residence_ID: attr('number'),
house_Number: attr('string'),
street: attr('string'),
city_ID: attr('number'),
state_ID: attr('number'),
zip: attr('string'),
apt: attr('string'),
client_ID: attr('number'),
client: null,
lead: null,
projectDetails: DS.hasMany('projectDetail')
});


App.ResidenceSerializer = DS.WebAPISerializer.extend({
primaryKey: 'residence_ID',

extractSingle: function (store, primaryType, payload) {
    var primaryTypeName = primaryType.typeKey;

    var typeName = primaryTypeName,
        type = store.modelFor(typeName);

    var data = {};
    data[typeName] = payload;
    data.projectDetails = [];

    var normalizedArray = payload.projectDetails.map(function (nav) {
        data.projectDetails.push(nav);
    }, this);
    payload.projectDetails = payload.projectDetails.mapProperty('projectDetailID');

    payload = data;
    return this._super.apply(this, arguments);
},

normalizeHash: {
    projectDetails: function (hash) {
        hash.residence_ID = hash.id;
        hash.id = hash.projectDetailID;
        return hash;
    },
    residence: function (hash) {
        hash.residence_ID = hash.id;
        return hash;
    }
}

});

这是从服务器返回的JSON

   {
   "residence_ID":3532,
   "house_Number":"243",
   "street":"Main St.",
   "city_ID":2,
   "state_ID":33,
   "zip":"11111",
   "apt":"35",
   "client_ID":3598,
   "projectDetails":[{"projectDetailID":4947,"residence_ID":3532"},   {"projectDetailID":4947,"residence_ID":3532}]
   }

Answer 1

return this._super.apply(this, arguments);

你最后扔掉所有的工作并返回超级实现。你可以return data;。

另请注意，arguments

时，payload = data;中的引用不会更新

ember数据提取单序列化器

1 个答案: