我有关于映射模型字段属性的问题。
首先，这是我的模特：
Ext.define('app.model.userModel', {
extend: 'Ext.data.Model',
requires: [
'Ext.data.field.Field'
],
idProperty: 'UserId',
fields: [
{
mapping: 'EMAIL',
name: 'UserEmail',
type: 'string'
},
{
mapping: 'ID',
name: 'UserId',
type: 'string'
},
{
mapping: 'NAME',
name: 'Name',
type: 'string'
}
],
proxy: {
api: {
read: readUrl,
create: createUrl,
update: updateUrl,
destroy: destroyUrl
},
type: 'ajax',
reader: {
type: 'json'
},
writer: {
type: 'json',
allowSingle: false,
writeAllFields: true,
nameProperty: 'mapping'
}
}
});
我有这样的商店：
Ext.define('app.store.userStore', {
extend: 'Ext.data.Store',
requires: [
'app.model.userModel',
'Ext.data.proxy.Ajax',
'Ext.data.reader.Json'
],
constructor: function (cfg) {
var me = this;
cfg = cfg || {};
me.callParent([Ext.apply({
storeId: 'userStore',
model: 'app.model.userModel',
autoLoad: true,
pageSize: 1,
proxy: {
api: {
read: readUrl,
create: createUrl,
update: updateUrl,
destroy: destroyUrl
},
type: 'ajax',
enablePaging: true,
reader: {
type: 'json',
rootProperty: 'SuccessObjs',
totalProperty: 'Count'
},
writer: {
type: 'json',
allowSingle: false,
writeAllFields: true,
nameProperty: 'mapping'
}
}
}, cfg)]);
}
});
现在，如果我直接使用json对象的字段名称作为模型字段名称，则此代码可以正常工作（没有nameProperty: 'mapping'编写器行）。但是当我将json对象字段名称映射到其他内容时，只有映射名称存在于记录（{'UserEmail', 'UserId', 'Name'}）中。如果我向作者添加nameProperty: 'mapping'行，则记录的所有属性都是重复的（{'EMAIL', 'UserEmail', 'ID', 'UserId', 'NAME', 'Name'}）。这是问题，因为当我尝试保存我的记录时，我的记录中有2个名称属性，这会混淆我的后端。
对不起，很长的帖子，这里没有土豆。
提前致谢。
答案 0 :(得分：0)
我可以看一下你的json数据吗？
在您的情况下，代理编写者没有指出您的json数据的根，尝试更改如下所示的属性。
writer: {
type: 'json',
writeAllFields: true,
root: 'data',
encode: true
},
这是我的json数据：
{
"success": true,
"message": "Loaded data",
"total": 2,
"data": [{
"street_number": "1",
"route": "Jl. Sultan Hasanuddin No. 1",
"locality": "Jakarta Selatan - Indonesia",
"administrative_area_level_1": "Special Capital Region of Jakarta",
"administrative_area_level_2": "South Jakarta City",
"administrative_area_level_3": "Kebayoran Baru",
"administrative_area_level_4": "Kramat Pela",
"point_of_interest": "Kejaksaan Agung RI",
"country": "ID",
"postal_code": "12130",
"formatted_address": "Kejaksaan Agung, Kramat Pela, Kebayoran Baru, South Jakarta City, Special Capital Region of Jakarta 12130, Indonesia",
"lat": "-6.240949",
"lng": "106.7978621"
}, {
"street_number": "0",
"route": "Jalan 17 Agustus, Manado",
"locality": "",
"administrative_area_level_1": "",
"administrative_area_level_2": "Kota Manado",
"administrative_area_level_3": "Kecamatan Wanea",
"administrative_area_level_4": "",
"point_of_interest": "Kantor Kejaksaan Tinggi Sulawesi Utara",
"country": "ID",
"postal_code": "",
"formatted_address": "Kantor Kejaksaan Tinggi Sulawesi Utara, Jalan 17 Agustus, Manado, Kecamatan Wanea, Kota Manado, Indonesia",
"lat": "1.469375",
"lng": "124.843384"
}]
}
这是我的模特：
Ext.define('APP.model.m_mstgis', {
extend: 'Ext.data.Model',
alias: 'widget.mstgisModel',
fields: [{
name: 'street_number',
type: 'int'
}, {
name: 'rute',
mapping: 'route' ---> You can map your field in here
}, 'locality', 'administrative_area_level_1',
'administrative_area_level_2',
'administrative_area_level_3',
'administrative_area_level_4', 'point_of_interest',
'country', 'postal_code', 'formatted_address', {
name: 'lat',
type: 'float'
}, {
name: 'lng',
type: 'float'
}
],
idProperty: 'formatted_address'
});
这是我的代理人：
proxy: {
type: 'ajax',
api: {
read: 'some_url/get',
create: 'some_url/save',
update: 'some_url/save',
destroy: 'some_url/delete'
},
actionMethods: {
read: 'POST',
create: 'POST',
update: 'POST',
destroy: 'POST'
},
reader: {
type: 'json',
root: 'data',
rootProperty: 'data',
successProperty: 'success',
messageProperty: 'message'
},
writer: {
type: 'json',
writeAllFields: true,
root: 'data',
encode: true
},
listeners: {
exception: function(proxy, response, operation) {
Ext.MessageBox.show({
title: 'REMOTE EXCEPTION',
msg: operation.getError(),
icon: Ext.MessageBox.ERROR,
buttons: Ext.Msg.OK
});
}
}
},
最后，这是我的网格专栏：
this.columns = [{
xtype: 'rownumberer'
}, {
header: 'point_of_interest',
filterable: true,
dataIndex: 'point_of_interest'
}, {
header: 'formatted_address',
filterable: true,
dataIndex: 'formatted_address'
}, {
header: 'rute',
filterable: true,
dataIndex: 'rute' ------> See this mapping field
}, {
header: 'locality',
filterable: true,
hidden: true,
dataIndex: 'locality'
}, {
header: 'administrative_area_level_1',
filterable: true,
hidden: true,
dataIndex: 'administrative_area_level_1'
}, {
header: 'administrative_area_level_2',
filterable: true,
hidden: true,
dataIndex: 'administrative_area_level_2'
}, {
header: 'administrative_area_level_3',
filterable: true,
hidden: true,
dataIndex: 'administrative_area_level_3'
}, {
header: 'administrative_area_level_4',
filterable: true,
hidden: true,
dataIndex: 'administrative_area_level_4'
}, {
header: 'country',
filterable: true,
hidden: true,
dataIndex: 'country'
}, {
header: 'postal_code',
filterable: true,
dataIndex: 'postal_code'
}, {
header: 'street_number',
filterable: true,
hidden: true,
dataIndex: 'street_number'
}, {
header: 'lat',
filterable: true,
hidden: true,
dataIndex: 'lat'
}, {
header: 'lng',
filterable: true,
hidden: true,
dataIndex: 'lng'
}];
很抱歉答案很长。