[英]What is the proper way to filtering ViewModel stores and implement to ExtJS Panel?
通過ViewModel
存儲,我得到了這個JSON數據。
{
"success": true,
"msg": "OK",
"count": 2,
"data": [
{
"firstname": "BLA",
"lastname": "BLALA",
"isactive": true,
...
},
{
"firstname": "BLAAA",
"lastname": "BLALAAA",
"isactive": false,
...
}
我在一個panel
上有兩個網格 ,其中一個僅使用isactive: true
加載數據isactive: true
字段,其他網格僅使用false
加載數據。 那么我需要在哪里以及如何過濾存儲以將指定數據加載到網格 ?
這是VM;
Ext.define('MyApp.view.ListingVM', {
extend: 'Ext.app.ViewModel',
alias: 'viewmodel.listing',
requires: [...],
reference: 'loyaltyvm',
stores: {
// Should I define the filter on here?
bonusTrans: {
storeId: 'bonusTrans',
// reference: 'bonusTrans',
model: 'MyApp.model.BonusTrans',
autoLoad: true,
session: true,
pageSize: MyApp.Globals.LIST_PAGE_SIZE
}
}
});
這是panel
的網格示例,其中定義了兩個網格。 我嘗試了幾種獲取store
和過濾的方法,但是不能成功;
getColumns: function () {
var me = this;
var panelItems = [
{
xtype: 'container',
layout: {type: 'hbox', align: 'stretch', pack: 'start'},
items: [
xtype: 'bonustrans',
flex: 1,
title: 'Current Bonus',
getListCols: function () {
var me = this;
debugger;
// var activeStore = Ext.getStore('bonusTrans');
// var activeStore = me.viewModel.get('bonusTrans');
// var view = me.getView();
// var vm = view.getViewModel();
// var vm.getStore('bonusTrans')
// var activeStore = me.getViewModel().getStore('bonusTrans');
var activeStore = me.getViewModel('loyaltyvm').getStores('bonusTrans');
activeStore.filter('isactive', 'true');
var listCols = [
{
xtype: 'firstnamecol',
flex: 1
},
{
xtype: 'checkoutcol'
},
{
xtype: 'bonustotalcol'
}
];
return listCols;
}
//... other Grid is just defined below of this line and it should loads data only with 'isactive' field is false.
使用連鎖商店, 擺弄 :
Ext.application({
name : 'Fiddle',
launch : function() {
new Ext.container.Viewport({
layout: {
type: 'hbox',
align: 'stretch'
},
viewModel: {
stores: {
everything: {
autoLoad: true,
proxy: {
type: 'ajax',
url: 'data1.json'
}
},
active: {
type: 'chained',
source: '{everything}',
filters: [{
property: 'active',
value: true
}]
},
inactive: {
type: 'chained',
source: '{everything}',
filters: [{
property: 'active',
value: false
}]
}
}
},
items: [{
flex: 1,
xtype: 'gridpanel',
title: 'Active',
bind: '{active}',
columns: [{
dataIndex: 'name'
}]
}, {
flex: 1,
xtype: 'gridpanel',
title: 'Inactive',
bind: '{inactive}',
columns: [{
dataIndex: 'name'
}]
}]
});
}
});
連鎖商店的方式肯定是最好的, 在這里您可以看到經典的工作方式
這是代碼:
Ext.application({
name: 'Fiddle',
launch: function () {
var storeAll = Ext.create('Ext.data.Store', {
storeId: 'storeAll',
fields: [{
name: 'firstname'
}, {
name: 'lastname'
}, {
name: 'active'
}],
data: [{
firstname: 'test1',
lastname: 'test1',
active: true
}, {
firstname: 'test2',
lastname: 'test2',
active: true
}, {
firstname: 'test3',
lastname: 'test3',
active: false
}]
}),
chainedStoreActive = Ext.create('Ext.data.ChainedStore', {
source: storeAll,
filters: [{
property: 'active',
value: true
}]
}),
chainedStoreNoActive = Ext.create('Ext.data.ChainedStore', {
source: storeAll,
filters: [{
property: 'active',
value: false
}]
});
Ext.create({
xtype: 'viewport',
layout: {
type: 'vbox',
align: 'stretch'
},
items: [{
xtype: 'gridpanel',
title: 'grid ALL',
store: storeAll,
columns: [{
text: 'First Name',
dataIndex: 'firstname'
}, {
text: 'Last Name',
dataIndex: 'lastname'
}],
flex: 1
}, {
xtype: 'gridpanel',
title: 'grid active',
store: chainedStoreActive,
columns: [{
text: 'First Name',
dataIndex: 'firstname'
}, {
text: 'Last Name',
dataIndex: 'lastname'
}],
flex: 1
}, {
xtype: 'gridpanel',
title: 'grid inactive',
store: chainedStoreNoActive,
columns: [{
text: 'First Name',
dataIndex: 'firstname'
}, {
text: 'Last Name',
dataIndex: 'lastname'
}],
flex: 1
}],
renderTo: Ext.getBody()
});
}
});
全局或“ Allelements”存儲區必須是全局存儲區,可以在視圖的視圖模型中創建鏈接的存儲區。
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