尝试（失败）显示来自嵌套json的数据。
JSON可能类似于：
{
"contacts": [
{
"id": "1",
"client_id": "135468714603",
"addresses": [
{
"id": "1",
"contact_id": "1",
"address_id": "16",
"address": {
"0": {
"id": "16",
"address": "123 Some Rd",
"address2": "",
"city": "Toen",
"state": "VS",
"zip_code": "11111",
"country": "USA"
}
}
},
{
"id": "6",
"contact_id": "1",
"address_id": "26",
"address": {
"0": {
"id": "26",
"address": "1 Other Road",
"address2": "",
"city": "Twn",
"state": "BD",
"zip_code": "11112",
"country": "USA"
}
}
}
]
},
{
"id": "10",
"client_id": null,
"addresses": [
{
"id": "8",
"contact_id": "10",
"address_id": "28",
"address": {
"0": {
"id": "28",
"address": "54 Road",
"address2": "",
"city": "TWND",
"state": "TT",
"zip_code": "11113",
"country": "USA"
}
}
},
{
"id": "9",
"contact_id": "10",
"address_id": "29",
"is_mailing_address": "0",
"is_primary_address": "0",
"display_priority": "0",
"address": {
"0": {
"id": "29",
"address": "6 Road",
"address2": "",
"city": "TOEOEOWN",
"state": "PY",
"zip_code": "11116",
"country": "USA"
}
}
},
{
"id": "10",
"contact_id": "10",
"address_id": "30",
"address": {
"0": {
"id": "30",
"address": "PO Box 9",
"address2": "",
"city": "TOYN",
"state": "GF",
"zip_code": "11118",
"country": "USA"
}
}
}
]
},
{
"id": "11",
"client_id": null,
"contact_id": "11",
"addresses": [
{
"id": "11",
"contact_id": "11",
"address_id": "33",
"is_mailing_address": "0",
"is_primary_address": "0",
"display_priority": "0",
"address": {
"0": {
"id": "33",
"address": "4 Street",
"address2": "",
"city": "TEOIN",
"state": "TG",
"zip_code": "11119",
"country": "USA"
}
}
}
]
}
]
}
我尝试将模型字段映射到所需的字段（例如，联系人模型>地址字段>映射：地址），但这不起作用，因为我需要映射到addresss [0] .address [0]来获取显然会丢弃其他地址的数据。
我也尝试过使用关联，但这似乎是分开的模型和商店。这里的想法是不要单独请求联系人，然后再请求其地址。
我还尝试直接在模板中挖掘json（这似乎是最直接的方法），例如{addresses.address.city}无效。
这个想法很简单：抓取一些json，然后在应用程序的不同部分显示该json的不同部分。
经验是可怕的。
有人可以解释如何映射这些嵌套的json项，以便可以从模板访问它们吗？
{
xtype: 'container',
flex: 1,
id: 'mainPanel',
items: [
{
xtype: 'dataview',
hidden: false,
id: 'clientsContacts',
minHeight: 200,
itemSelector: 'div',
itemTpl: [
'{id} | {last_name} | {first_name} | {relationship} | {addresses}'
],
store: 'Contacts'
}
]
}
Ext.define('MyApp.store.Contacts', {
extend: 'Ext.data.Store',
requires: [
'MyApp.model.Contacts'
],
constructor: function(cfg) {
var me = this;
cfg = cfg || {};
me.callParent([Ext.apply({
autoLoad: false,
storeId: 'Contacts',
model: 'MyApp.model.Contacts',
proxy: {
type: 'ajax',
extraParams: {
id: '',
format: 'json'
},
url: '/api/contacts/', //the json
reader: {
type: 'json',
root: 'contacts'
}
},
listeners: {
load: {
//fn: me.onJsonstoreLoad,
//scope: me
}
}
}, cfg)]);
},
});
Ext.define（'MyApp.model.Contacts'，{扩展名：'Ext.data.Model'，
uses: [
//'MyApp.model.Client',
//'MyApp.model.contactAddressModel'
],
fields: [
{
name: 'client_id'
},
{
name: 'id'
},
{
name: 'addresses',
mapping: 'addresses'//doesn't work
//mapping: 'addresses[0].address[0]' //works, but only for the first address duh
}
],
});
通过Sencha Architect使用extjs 4.1。
任何帮助将不胜感激。
谢谢。
我想我明白了（希望它是正确的）。
因此，为您需要的每个嵌套数据组创建一个字段。所以我有一个联系人模型。在该模型中有以下字段：
id
client_id
addresses //mapped to addresses
address //mapped to addresses.address
然后在模板中：
<br>
<tpl for="addresses">
id: {id}<br>
addy id: {address_id}<br>
<tpl for="address">
{city} {state}, {zip}<br>
</tpl>
</tpl>
整个事情是这样的：
Ext.define('MyApp.view.MyView', {
extend: 'Ext.view.View',
height: 250,
width: 400,
itemSelector: 'div',
store: 'MyJsonStore',
initComponent: function() {
var me = this;
Ext.applyIf(me, {
itemTpl: [
'<br>',
'<tpl for="addresses">',
' id: {id}<br>',
' addy id: {address_id}<br>',
' <b>',
' <tpl for="address">',
' {city} {state}, {zip}<br><br>',
' </tpl>',
' </b>',
'',
'</tpl>',
'',
'<hr>',
''
]
});
me.callParent(arguments);
}
});
Ext.define('MyApp.store.MyJsonStore', {
extend: 'Ext.data.Store',
requires: [
'MyApp.model.Contacts'
],
constructor: function(cfg) {
var me = this;
cfg = cfg || {};
me.callParent([Ext.apply({
storeId: 'MyJsonStore',
model: 'MyApp.model.Contacts',
data: {
contacts: [
{
id: '1',
client_id: '135468714603',
addresses: [
{
id: '1',
contact_id: '1',
address_id: '16',
address: {
'0': {
id: '16',
address: '123 Some Rd',
address2: '',
city: 'Toen',
state: 'VS',
zip_code: '11111',
country: 'USA'
}
}
},
{
id: '6',
contact_id: '1',
address_id: '26',
address: {
id: '26',
address: '1 Other Road',
address2: '',
city: 'Twn',
state: 'BD',
zip_code: '11112',
country: 'USA'
}
}
]
},
{
id: '10',
client_id: null,
addresses: [
{
id: '8',
contact_id: '10',
address_id: '28',
address: {
id: '28',
address: '54 Road',
address2: '',
city: 'TWND',
state: 'TT',
zip_code: '11113',
country: 'USA'
}
},
{
id: '9',
contact_id: '10',
address_id: '29',
is_mailing_address: '0',
is_primary_address: '0',
display_priority: '0',
address: {
id: '29',
address: '6 Road',
address2: '',
city: 'TOEOEOWN',
state: 'PY',
zip_code: '11116',
country: 'USA'
}
},
{
id: '10',
contact_id: '10',
address_id: '30',
address: {
id: '30',
address: 'PO Box 9',
address2: '',
city: 'TOYN',
state: 'GF',
zip_code: '11118',
country: 'USA'
}
}
]
},
{
id: '11',
client_id: null,
contact_id: '11',
addresses: [
{
id: '11',
contact_id: '11',
address_id: '33',
is_mailing_address: '0',
is_primary_address: '0',
display_priority: '0',
address: {
id: '33',
address: '4 Street',
address2: '',
city: 'TEOIN',
state: 'TG',
zip_code: '11119',
country: 'USA'
}
}
]
}
]
},
proxy: {
type: 'memory',
reader: {
type: 'json',
root: 'contacts'
}
}
}, cfg)]);
}
});
Ext.define('MyApp.model.Contacts', {
extend: 'Ext.data.Model',
fields: [
{
name: 'id'
},
{
name: 'client_id'
},
{
name: 'addresses',
mapping: 'addresses'
},
{
name: 'address',
mapping: 'address'
}
]
});