[英]ExtJS: How to access Ajax request's value from any other proxy?
我從網絡服務獲取一些特定數據,需要將此數據傳輸到另一個網絡服務的extraParams
。 我怎樣才能達到它?
我創建了一個處理信息並在獲取這些數據之后的singleton
類; 另一個商店proxy
將使用這些數據。
這是單例類;
Ext.define('MyApp.MyInfo', {
requires: [] ,
singleton: true,
getMyId: function () {
var me = this;
var request = Ext.Ajax.request({
url: myUrl() + '/info', //Here is web-service url
success: function(response, opts) {
var obj = Ext.decode(response.responseText);
var myId = obj.data[0].id; // Successfully gets required ID
console.log(myId); // Successfully prints ID value
// callback(userGid); //Not sure if callback method will handle ID value to fetch on any other class..
},
failure: function(response, opts) {
console.log('server-side failure with status code ' + response.status);
}
});
}
});
這里是其他proxy
這就需要myId
從值Ajax.request
以上;
stores: {
myFooStore: {
model: 'MyApp.Model',
autoLoad: true,
session: true,
proxy: {
url: myUrl() + '/the/other/service',
type: 'ajax',
extraParams: {
id: // HERE! I need to get myId value on here. And couldn't get it.
},
reader: {
type: 'json',
rootProperty: 'data'
}
}
},
您需要調用store.load()
方法來加載您的特定商店,而不是store
自動加載。 您可以使用store.getProxy()
傳遞您的參數,如下例所示:-
//you can set using get proxy
store.getProxy().setExtraParams({
id: id
});
store.load()
//or you can direcly pass inside of store.load method like this
store.load({
params: {
id: 'value' //whatever your extraparms you can pass like this
}
});
在這個FIDDLE 中,我根據您的要求創建了一個演示。 我希望這將幫助/指導您實現您的要求。
代碼片段
Ext.application({
name: 'Fiddle',
launch: function () {
Ext.define('MyInfo', {
alternateClassName: "myinfo",
singleton: true,
getMyId: function (callback) {
var me = this;
Ext.Ajax.request({
url: 'id.json', //Here is web-service url
success: function (response, opts) {
var obj = Ext.decode(response.responseText),
myId = obj.data[0].id; // Successfully gets required ID
console.log(myId); // Successfully prints ID value
callback(myId);
},
failure: function (response, opts) {
callback('');
console.log('server-side failure with status code ' + response.status);
}
});
}
});
Ext.define('MyViewController', {
extend: 'Ext.app.ViewController',
alias: 'controller.myview',
onLoadButtonTap: function () {
var view = this.getView(),
myFooStore = this.getViewModel().getStore('myFooStore');
view.mask('Please wait..');
myinfo.getMyId(function (id) {
view.unmask();
if (id) {
myFooStore.getProxy().setExtraParams({
id: id
});
myFooStore.load();
/*
You can also do like this
myFooStore.load({
url:'',//If you want to change url dynamically
params:{
id:'value'//whatever your extraparms you can pass like this
}
});
*/
}
});
}
});
Ext.define("ViewportViewModel", {
extend: "Ext.app.ViewModel",
alias: 'viewmodel.myvm',
stores: {
myFooStore: {
fields: ['name', 'email', 'phone'],
proxy: {
type: 'ajax',
url: 'data1.json',
reader: {
type: 'json',
rootProperty: ''
}
}
}
}
});
//creating panel with GRID and FORM
Ext.create({
xtype: 'panel',
controller: 'myview',
title: 'Demo with singletone class',
renderTo: Ext.getBody(),
viewModel: {
type: 'myvm'
},
layout: 'vbox',
items: [{
xtype: 'grid',
flex: 1,
width: '100%',
bind: '{myFooStore}',
columns: [{
text: 'Name',
dataIndex: 'name'
}, {
text: 'Email',
dataIndex: 'email',
flex: 1
}, {
text: 'Phone',
dataIndex: 'phone'
}]
}],
tbar: [{
text: 'Load Data',
handler: 'onLoadButtonTap'
}]
});
}
});
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