Question

我有像这样的json数据

{"GetStudentDetails":
    {"TotalCount":5,
    "RootResults":[
    {"city":"West Chester","country":"USA","state":"PA ","student_id":100},
    {"city":"Philly","country":"USA","state":"PA","student_id":101},
    {"city":"Buffalo","country":"USA","state":"NY","student_id":102},
    {"city":"Naigra City","country":"USA","state":"NY","student_id":103},
    {"city":"West Chester","country":"USA","state":"PA","student_id":104}]
    }
}

如何将这些数据存入商店？我正在尝试使用这样的模型。

Ext.define('User', {
                extend: 'Ext.data.Model',
                fields: [
                    { type: 'string', name: 'TotalCount' }
                ],
                hasMany: [{ model: 'RootResults', name: 'RootResult'}]
            });

            Ext.define("RootResults", {
                extend: 'Ext.data.Model',
                fields: [
                    { type: 'string', name: 'city' },
                    { type: 'string', name: 'country' },
                    { type: 'string', name: 'state' },
                    { type: 'string', name: 'student_id' }
                ],
                belongsTo: 'User'
            });

            var store = Ext.create('Ext.data.Store', {
                model: 'User',
                proxy: {
                    type: 'ajax',
                    url: 'users.json',
                    reader: {
                        type: 'json'
                    }
                }
            });

我的模型应该如何？当我给一些更简单的json我正在加载商店。我认为问题出在映射上？

Answer 1

将模型定义为

Ext.define("RootResults", {
                extend: 'Ext.data.Model',
                fields: [
                    { type: 'string', name: 'city' },
                    { type: 'string', name: 'country' },
                    { type: 'string', name: 'state' },
                    { type: 'string', name: 'student_id' }
                ],
            });

在阅读器定义中添加两个参数：

root: 'GetStudentDetails.RootResults'
totalProperty: 'GetStudentDetails.TotalCount'

类似的东西......主要思想 - 不要试图将内部JSON结构引入您的模型 - 读者应该正确解析它。

将json数据绑定到存储ubsing extjs

1 个答案: