问题
The ExtJS Frame work does not give obvious way to use variables. I am trying to dynamically load the datepicker with an array for disabledDates:. I have tried a bunch of different ways but it always come down to the fact that any variable I try to access is undefined. What is the perfered method for dynamically loading the configs for datepicker? What is the perfered method to use variables between controller and components?
I have the array loaded in my controller. How do I use it to set values on my date picker configs? At the moment I am hardcoding some dates in dateArray and it is working. I want to load this dynamically.
Controller:
Ext.define('AM.controller.Users', {
extend: 'Ext.app.Controller',
stores:['Users', 'dates'],
models:['User', 'date'],
views: ['user.List','user.Edit'],
init: function() {
Ext.getStore('dates').addListener('load',this.ondatesStoreLoad, this);
this.control(
{
'viewport > userlist':
{
itemdblclick: this.editUser,
},
'useredit button[action=save]':
{
click: this.updateUser
}
});
},
// ---------- handler Function declarations -------------
ondatesStoreLoad: function(me,records,success)
{
// ------ Gets the dates from dates store and loads an array
var store = this.getStore('dates');
sendDataArray = [];
store.each(function(record){
var recordArray = [record.get("unix_time_stamp")];
sendDataArray.push(recordArray);
});
// ------ Gets the dates from dates store and loads an array
},
editUser: function(grid, record)
{
var view = Ext.widget('useredit');
view.down('form').loadRecord(record);
},
updateUser: function(button)
{
var win = button.up('window'),
form = win.down('form'),
record = form.getRecord(),
values = form.getValues();
record.set(values);
win.close();
this.getUsersStore().sync();
}
});
ViewPort:
Ext.Loader.setConfig({enabled:true});
// This array is for testing.
dateArray = ["01/01/2014","01/06/2014","01/08/2014","01/20/2014"];
Ext.application({
requires: ['Ext.container.Viewport'],
name: 'AM',
appFolder: 'app',
controllers: ['Users'],
launch: function() {
Ext.create('Ext.container.Viewport', {
layout: 'border',
items:
[{
region: 'center',
title:'The Title',
xtype: 'tabpanel', // TabPanel itself has no title
activeTab: 0, // First tab active by default
items:
[{xtype: 'userlist'}]
},
{
region: 'west',
layout:'fit',
xtype: 'tabpanel',
activetab:0,
collapsible:false,
split: false,
title: 'The Title',
width:178,
maxWidth:400,
height: 100,
minHeight: 100,
items:
[{
title: 'Tab 1',
xtype:'panel',
items:
[{
xtype: 'datepicker',
minDate: new Date('01/02/2014'),
maxDate: new Date(),
disabledDates:["^("+dateArray.join("|")+").*$"],
}]
}]
});
}
});
UPDATED CONTROLLER:
Ext.define('AM.controller.Users', {
extend: 'Ext.app.Controller',
stores:['Users', 'dates'],
models:['User', 'date'],
views: ['user.List','user.Edit'],
init: function() {
Ext.getStore('dates').addListener('load',this.ondatesStoreLoad, this);
this.control(
{
'viewport > userlist':
{
itemdblclick: this.editUser,
},
'useredit button[action=save]':
{
click: this.updateUser
}
});
},
// ---------- handler Function declarations -------------
ondatesStoreLoad: function(me,records,success)
{
// ------ Gets the dates from dates store and loads an array
var store = this.getStore('dates');
sendDataArray = [];
store.each(function(record){
var recordArray = [record.get("unix_time_stamp")];
sendDataArray.push(recordArray);
});
// ------ Set DatePicker here --------//
var dtFld = Ext.ComponentQuery.query('#datePickerFld')[0];
dtFld.setDisabledDates(["^(?!"+sendDataArray.join("|")+").*$"]);
dtFld.setMaxDate(new Date());
dtFld.setMinDate(new Date('05/01/2013'));
},
editUser: function(grid, record)
{
var view = Ext.widget('useredit');
view.down('form').loadRecord(record);
},
updateUser: function(button)
{
var win = button.up('window'),
form = win.down('form'),
record = form.getRecord(),
values = form.getValues();
record.set(values);
win.close();
this.getUsersStore().sync();
},
});
UPDATED VIEWPORT:
Ext.Loader.setConfig({enabled:true});
Ext.application({
requires: ['Ext.container.Viewport'],
name: 'AM',
appFolder: 'app',
controllers: ['Users'],
launch: function() {
Ext.create('Ext.container.Viewport', {
layout: 'border',
items:[{
region: 'center',
title:'The Title',
xtype: 'tabpanel',
activeTab: 0,
items:[{
xtype: 'userlist',
listeners:
{
select: function(selModel, record, index, options)
{
// do something with the selected date
console.log('select');
},
add: function(selModel)
{
// do something with the selected date
console.log('add - init2.js');
},
afterrender:function(selModel)
{
// do something with the selected date
console.log('afterrender - userlist(init2.js)');
},
beforerender:function(selModel)
{
// do something with the selected date
console.log('beforerender - userlist(init2.js)');
}
}
}]
},
{
region: 'west',
layout:'fit',
xtype: 'tabpanel',
activetab:0,
collapsible:false,
split: false,
title: 'The Title',
width:178,
maxWidth:400,
height: 100,
minHeight: 100,
items:[{
title: 'Tab 1',
xtype:'panel',
items:
[{
xtype: 'datepicker',
itemId:'datePickerFld',
listeners:{
beforerender: function(){
console.log('datepicker - beforerender(init2.js)');
var store = Ext.getStore('dates');
store.load({callback: function(){
console.log('datepicker - callback(init2.js');
console.log(store.data.items[999].data.recip_email);
console.log(store.data.items[999].data.unix_time_stamp);
}
})
}
},
handler: function(picker, date)
{
// do something with the selected date
console.log('date picker example in init2.js' + Ext.Date.format(date,'m/d/Y'));
// get store by unique storeId
var store = Ext.getStore('Users');
// clear current filters
store.clearFilter(true);
// filter store
Ext.encode(store.filter("unix_time_stamp", Ext.Date.format(date,'m/d/Y')));
store.load();
store.sync();
}
}]
},
{
title: 'Tab 2',
html: 'ers may be added dynamically - Others may be added dynamically',
}]
}]
});
}
});
回答1:
You will want to use the datepicker method setDisabledDates() which accepts a string array of dates. If you are getting the dates dynamically from a store load, then you will want to query for your component and execute the method within the store load as well.
You can add an itemId to the specified datepicker to make it easier to query.
[{
xtype: 'datepicker',
minDate: new Date('01/02/2014'),
maxDate: new Date(),
disabledDates:["^("+dateArray.join("|")+").*$"],
itemId:'datePickerFld'
}]
Then query within your store load and set the disabled dates...
var dtFld = Ext.ComponentQuery.query('#datePickerFld')[0];
dtFld.setDisabledDates(disabledDatesArray);
来源：https://stackoverflow.com/questions/20925610/extjs-4-2-dynamically-load-date-picker-value-newbie-q