使用组合框和可编辑标签填充 Listitem 并按行保留每个对象的状态 [英] Populate Listitem with comboboxes and editables labes and preserve the state of each object in lines
问题描述
为了避免浪费您的时间，这是 apache wicket 和 Scala 开发人员的问题，谢谢.
For avoid waste your time, this is a question for apache wicket and scala developers, thanks.
我创建了一个带有 populateList 方法的 listView，它根据下图填充了与负责每一行的相应经理的客户会议列表:
I have created a listView with method populateList, that fills a list of customers meetings with the respective manager responsible for each line according the figure bellow:
这里有两个问题:
- 创建新项目时，只有字段(标签)dateBegin 和dateEnd 与以前分配的值一起保留，我丢失了Manager DropDownChoice 和 Detail 的值TextField 在 ListItem 的最后一行.
- 更改后Detail TextField 的after 退出的DropDownChoice 需要更新模型 具有从每个字段中选择的相应值.
- When a new new item is created, only the fields (labels) dateBegin and dateEnd are preserved with previous assigned values, I lost the values of Manager DropDownChoice and the Detail TextField in last line of the ListItem.
- After change the DropDownChoice of after exit from the Detail TextField is needed update the model with the respective value have chosen from each field.
因此这些值仅用于标签，实际上是链接.让我展示一下代码:
So the values are kept only for labels, in truth links. Let me show the code:
add(new ListView[Meetings]("listMeetings", listData) {
override protected def onBeforeRender() {
periodTotal = new Period()
super.onBeforeRender()
}
// for populating the listView
def populateItem(item: ListItem[customer]) = {
var customer = item.getModelObject()
item.add(new LinkDate("beginDate", customer))
item.add(new LinkDate("endDate", customer))
val listManagers: java.util.List[Manager] = managerDAO.listManagers
item.add(new DropDownChoice("managerSelection", listManagers,new ChoiceRenderer[Manager]("name")))
item.add(new TextField("detail"))
/*
* I tried to use the code bellow but it's cause a markups errors too.
* Only the code above display the components without errors.
*/
//val managerSelection = new LinkManager("managerSelection",customer)
//item.add(managerSelection)
//item.add(new LinkDetail("detail", customer))
var period = new Period(customer.beginDate, customer.endDate.get)
item.add(new Label("total", period.toString(getFormatter())))
item.add(new LinkEdit("edit", customer))
}})
下面的函数适用于日期值和编辑行的相应字段:
The functions bellow work fine for date value and for edit a respective fields of the line:
private class LinkDate(id: String, customer: Customer) extends Link[String](id) {
setEnabled(false)
add(new Label("label", new Model[String]() {
override def getObject(): String = {
var result = ""
if (id == "beginDate") {
result = customer.beginDate.toString("dd/MM/YYYY HH:mm:ss")
}
if (id == "endDate") {
result = customer.endDate.get.toString("dd/MM/YYYY HH:mm:ss")
}
return result
}
}))
// ... doing other stuff
}
private class LinkEdit(id: String, customer: Customer) extends Link[String](id) {
add(new Label("label", new Model[String]() {
override def getObject: String = "edit"
}));
// ... doing other stuff
}
但是对于 DropDown 和 TextField，我尝试做同样的事情，但我失败了:
But for DropDown and TextField I tried to do the same and I failed strongly:
// Doesn't work
private class LinkManager(id: String, customer: Customer) extends Link[String](id) {
val listManagers: java.util.List[Manager] = managerDAO.listManagers
add(new DropDownChoice("managerSelection", listManagers,new ChoiceRenderer[Manager]("name") {
def wantOnSelectionChangedNotifications() = {
true;
}
def onSelectionChanged(managerSelection: Manager): String = {
// saving model
})
}
}))
// ... doing other stuff
}
// Doesn't work
// Also here I tried to change textFiled for a inline-ajax Editable label
// And I need the behaviour to change model imadiately after change value
private class LinkDetail(id: String, customer: Customer) extends Link[String](id) {
add(new AjaxEditableLabel("detail", new Model[String]() {
override def getObject(): String = {
// ... doing other stuff
}
}))
}
相应的标记如下所示:
<TR wicket:id="listCustomersMeetings">
<TD><a wicket:id="beginDate"><span wicket:id="label"></span></a></TD>
<TD><a wicket:id="endDate"><span wicket:id="label"></span></a></TD>
<TD>
<SELECT wicket:id="managerSelection" name="id"></SELECT>
<BR>
</TD>
<TD><INPUT wicket:id="detail" type="text" name="obs" value="_"/></TD>
<TD wicket:id="total"></TD>
<TD><a wicket:id="edit"><span wicket:id="label" style="text-align: center"></span></a></TD>
</TR>
我认为需要一个类似于 LinkDate 的对象来处理和存储 Manager DropDownChoice 和 textField 或 AjaxEditableLabel Detail 的值，但我在实现它们时遇到了麻烦.
I think that is needed a Object, similar to LinkDate, to deal and store the values for Manager DropDownChoice and for the textField or AjaxEditableLabel Detail, but I got in trouble to implement them.
感谢有人可以帮助我或向我提供有关
Thanks for someone that could help me or give me information about
推荐答案
尝试替换这些行
item.add(new DropDownChoice("managerSelection", listManagers,new ChoiceRenderer[Manager]("name")))
item.add(new TextField("detail"))
类似于:
val managerSelectionCurrent = new PropertyModel(customer, "manager")
val managerSelection = new DropDownChoice[Manager]("managerSelection", managerSelectionCurrent, listManagers,new ChoiceRenderer[Manager]("name")) {
protected override def wantOnSelectionChangedNotifications: Boolean = {
true
}
protected override def onSelectionChanged(newSelection: Manager) {
// save changes
}
}
item.add(managerSelection)
val detail = new TextField("detail", new PropertyModel(customer, "details"))
detail.add(new AjaxFormComponentUpdatingBehavior(("keyup")) {
protected def onUpdate(target: AjaxRequestTarget) {
// save changes
}
protected override def updateAjaxAttributes(attributes: AjaxRequestAttributes) {
attributes.setThrottlingSettings(new ThrottlingSettings("thr", Duration.milliseconds(800)))
super.updateAjaxAttributes(attributes)
}
})
item.add(detail)
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