Sencha XTemplates 与来自控制器的调用出现问题
我在使用 XTemplates 和使用 MVC 结构时遇到一些困难。我已经完成了一些教程,它们本身是有意义的,但是当我尝试将它们应用到我想要完成的任务时,效果并不那么好。
首先,我的应用程序由 TabBarMVC 和几个视图组成。某些视图将具有“子视图”。我让应用程序从“布局”的角度工作。选项卡是选项卡,视图可以访问子视图。现在的问题是将数据发送到子视图。
一个例子是我的“账单”页面到“详细信息”页面。在账单页面中,用户可以输入要分摊账单的总人数和人数。我的控制器获取这两个参数并将它们分开并将它们存储在“客人”对象中。我的 guest 对象将是一个包含 1-x 个 guest 对象的数组。 (基于要拆分的数量)。
然后,我将该对象发送到子视图中的更新方法以更新 XTemplate,但这并没有发生。我可以警告对象,并在调试器中查看数据,但我不知道如何更新 Xtemplate。
这是控制器代码:
splitdetail: function(options)
{
if ( ! this.splitdetailView)
{
var totalBill = options.data['totalBill'];
var numGuests = options.data['splitBy'];
var totalPerGuest = totalBill / numGuests;
var guestObject = new Array();
var theGuest;
for (var i=0; i<numGuests; i++) {
theGuest = {amount: totalPerGuest}
guestObject.push(theGuest);
}
app.views.calculatorSplitDetail.updateWithRecord(guestObject);
this.splitdetailView = this.render({
xtype: 'CalculatorSplitDetail',
switchAnimation: { type: 'slide'}
});
}
this.application.viewport.setActiveItem(this.splitdetailView, 'slide');
},
这是我的拆分详细信息
var guestTemplate = new Ext.XTemplate(
'<tpl for=".">',
'<div class=" x-field guest-amount-row x-field-number x-label-align-left">',
'<div class="x-form-label" style="width: 30%; ">',
'<span>Total bill</span>',
'</div>',
'<div class="x-form-field-container">',
'<input type="number" name="totalGuestAmount" class="x-input-number" value="{amount}">',
'</div>',
'</div>',
'</tpl>'
);
app.views.CalculatorSplitDetail = Ext.extend(Ext.form.FormPanel, {
initComponent: function() {
Ext.apply(this, {
scroll: false,
items: [
guestTemplate,
]
});
app.views.CalculatorSplitDetail.superclass.initComponent.call(this);
},
styleHtmlContent: true,
baseCls: 'calculator-splitdetail-panel',
updateWithRecord: function(record) {
guestTemplate.apply(record);
alert(record[0].amount);
}
});
Ext.reg('CalculatorSplitDetail', app.views.CalculatorSplitDetail);
I am having some difficulty with XTemplates and using the MVC structure. I have went through a few of the tutorials and by themselves they make sense but when I try to apply them to what I am trying to accomplish it does not work that well.
First off, my app consists of TabBarMVC and several views. Some of the views will have 'sub views'. I have the app working from a 'layout' perspective. Tabs are tabbing and views can access subviews. Now the issue is sending data to subviews.
An example is my Bill page to Detail page. In the bill page a user can enter a total and number of people to split the bill against. My controller takes both parameters and divides them and stores them in a 'guests' object. My guests object will be an array of 1-x number of guest objects. (based on the number to split).
I then send that object to an update method in my sub view to update a XTemplate but that is not happening. I can alert the object, and view the data in debugger but I do not know how to update the Xtemplate.
Here is the controller code:
splitdetail: function(options)
{
if ( ! this.splitdetailView)
{
var totalBill = options.data['totalBill'];
var numGuests = options.data['splitBy'];
var totalPerGuest = totalBill / numGuests;
var guestObject = new Array();
var theGuest;
for (var i=0; i<numGuests; i++) {
theGuest = {amount: totalPerGuest}
guestObject.push(theGuest);
}
app.views.calculatorSplitDetail.updateWithRecord(guestObject);
this.splitdetailView = this.render({
xtype: 'CalculatorSplitDetail',
switchAnimation: { type: 'slide'}
});
}
this.application.viewport.setActiveItem(this.splitdetailView, 'slide');
},
and here is my split detail
var guestTemplate = new Ext.XTemplate(
'<tpl for=".">',
'<div class=" x-field guest-amount-row x-field-number x-label-align-left">',
'<div class="x-form-label" style="width: 30%; ">',
'<span>Total bill</span>',
'</div>',
'<div class="x-form-field-container">',
'<input type="number" name="totalGuestAmount" class="x-input-number" value="{amount}">',
'</div>',
'</div>',
'</tpl>'
);
app.views.CalculatorSplitDetail = Ext.extend(Ext.form.FormPanel, {
initComponent: function() {
Ext.apply(this, {
scroll: false,
items: [
guestTemplate,
]
});
app.views.CalculatorSplitDetail.superclass.initComponent.call(this);
},
styleHtmlContent: true,
baseCls: 'calculator-splitdetail-panel',
updateWithRecord: function(record) {
guestTemplate.apply(record);
alert(record[0].amount);
}
});
Ext.reg('CalculatorSplitDetail', app.views.CalculatorSplitDetail);
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guestTemplate
只是一个模板,不是一个控件,所以它不能刷新自己,但它可以为你生成新的 html。因此,您需要做的就是使用新生成的 html 更新面板:guestTemplate
is just a template, not a control, so it can't refresh itself, but it can generate new html for you. So all you need to do is update your panel with newly generated html: