我在p:dialog
通过 AJAX 提交的组件中有一个表单。对话框中的表单是通过ui:include
另一个.xhtml
仅包含表单及其组件的表单(不,我不是嵌套表单;对话框本身不在任何表单内)。包含页面的支持 bean 是“ViewScoped”。
大多数事情都很好:
- 验证成功后,表单将执行 save 方法;成功保存后,对话框关闭;打开后续记录会显示来自数据库的正确记录信息。
- 验证不成功时,提交的值仍然存在,对话框保持打开状态并显示验证错误,修复无效字段并重新提交导致成功保存。
当被action
调用p:commandButton
失败时,问题就出现了。如果失败,对话框将保持打开状态并向h:messages
用户显示“保存更改时出错”;此外,提交的值仍然存在于输入字段中。当表单保持打开状态时,这很好(甚至是需要的)——在关闭对话框并重新打开它时,提交的值仍然在文本字段中。这很糟糕,因为它给用户留下了保存确实成功的印象(h:messages
由于对话框更新,组件现在是空白的)。
到目前为止,我已经尝试了以下方法,但没有一个可以解决问题:
- 1.1)在对话框打开时将包含表单的支持bean设置为bean的新实例。
- 1.2) 由于 bean 现在是一个新实例,我还使用数据 bean 的详细信息重新填充地址对象。
- 2.1)禁用对话框上的关闭按钮并添加一个
p:commandButton
带有p:resetInput
组件的“取消”按钮以关闭对话框/重置表单。(对话框关闭,但表单中提交的值仍然存在)。 - 2.2) 从此调用一个方法
p:commandButton
,删除RequestMap
包含表单的支持 bean。 - 2.3) 尝试将按钮设置为
immediate=true
和immediate=false
。 - 2.4)尝试将按钮设置为
process=@this
,这是我用来关闭表单的类似策略,以确保在重新打开时它会有新的字段。
您会考虑在将支持 bean 设置为新实例和重新填充地址对象之间进行考虑,我会看到一个新的表单,但不是。
这是一些来源:
mainform.xhtml 的一部分
<p:dialog id="dlgAddress"
header="Address Edit"
widgetVar="dialogAddress"
dynamic="true"
modal="false"
closable="false"
resizable="false"
styleClass="dlgAddress"
visible="#{addressform.showDlgAddress}">
<ui:include src="addressform.xhtml"/>
</p:dialog>
地址表格.xhtml
<h:form id="fDlgAddress">
<div id="addresses-container">
<h:messages id="msgDlgAddress" errorClass="errormsg" infoClass="infomsg1" layout="table"/>
<h:panelGrid columns="1"
styleClass="pgAddresses"
rendered="#{!addressform.address.exists}">
<h:outputText value="No active #{addressform.address.atypCode} address found."
styleClass="record-not-exists"/>
<h:outputText value="Use the form below to create one."/>
</h:panelGrid>
<p:panelGrid columns="2"
styleClass="pgDlgForm pgAddresses">
<h:outputLabel value="Address Type"/>
<h:inputText id="atypCode1"
value="#{addressform.address.atypCode}"
disabled="true"
rendered="#{addressform.address.exists}"/>
<h:selectOneMenu id="atypCode2"
value="#{addressform.address.atypCode}"
rendered="#{!addressform.address.exists}">
<f:selectItems value="#{addressform.atypCodeList}"
var="atyp"
itemValue="#{atyp}"
itemLabel="#{atyp}"/>
</h:selectOneMenu>
<h:outputLabel value="Street 1"
for="street1"/>
<h:inputText id="street1"
value="#{addressform.address.addressLine1}"/>
<h:outputLabel value="Street 2"
for="street2"/>
<h:inputText id="street2"
value="#{addressform.address.addressLine2}"/>
<h:outputLabel value="Street 3"
for="street3"/>
<h:inputText id="street3"
value="#{addressform.address.addressLine3}"/>
<h:outputLabel value="Street 4"
for="street4"/>
<h:inputText id="street4"
value="#{addressform.address.addressLine4}"/>
<h:outputLabel value="City"
for="city"/>
<h:inputText id="city"
value="#{addressform.address.city}"
required="true"
requiredMessage="Please enter a city."/>
<h:outputLabel value="State"
for="statCode"/>
<h:selectOneMenu id="statCode"
value="#{addressform.address.stateCode}">
<f:selectItem itemLabel="Select State/Province"
itemValue=""/>
<f:selectItems value="#{states.statesList}"
var="stat"
itemValue="#{stat.statCode}"
itemLabel="#{stat.statDesc}"/>
</h:selectOneMenu>
<h:outputLabel value="Zip Code"
for="zipCode"/>
<h:inputText id="zipCode"
value="#{addressform.address.zip}"/>
<h:outputLabel value="Country"
for="natnCode"/>
<h:selectOneMenu id="natnCode"
value="#{addressform.address.nationCode}"
required="true"
requiredMessage="Please choose a nation.">
<f:selectItem itemLabel="Select Country"
itemValue=""/>
<f:selectItems value="#{nations.nationsList}"
var="natn"
itemValue="#{natn.natnCode}"
itemLabel="#{natn.natnDesc}"/>
</h:selectOneMenu>
<h:outputLabel value="From Date"
for="fromDate"/>
<p:calendar id="fromDate"
value="#{addressform.address.fromDate}"
showButtonPanel="true"/>
<h:outputLabel value="To Date"
for="toDate"/>
<p:calendar id="toDate"
value="#{addressform.address.toDate}"
showButtonPanel="true"/>
<h:outputLabel value="Inactivate"
for="inactivateAddress"
rendered="#{addressform.address.exists}"/>
<h:selectBooleanCheckbox id="inactivateAddress"
value="#{addressform.address.inactivate}"
rendered="#{addressform.address.exists}"/>
<h:outputLabel value="Delete"
for="deleteAddress"
rendered="#{addressform.address.exists}"/>
<h:selectBooleanCheckbox id="deleteAddress"
value="#{addressform.address.delete}"
rendered="#{addressform.address.exists}"/>
</p:panelGrid>
</div>
<div class="button-container">
<p:commandButton value="Save Changes"
action="#{addressform.save}"
type="submit"
ajax="true"
process="@form"
update="@form"/>
<p:commandButton value="Cancel"
process="@this"
onclick="dialogAddress.hide();">
<p:resetInput target="fDlgAddress"/>
</p:commandButton>
</div>
</h:form>
Recorddetailsform(调用地址对话框的表单的支持 bean)
public void showDlgAddress(){
FacesContext ctx = FacesContext.getCurrentInstance();
ELResolver resolver = ctx.getApplication().getELResolver();
RecordDetails recordDetails = (RecordDetails) resolver.getValue(ctx.getELContext(), null, "recordDetails");
//Set addressform backing bean to new instance and load address into it from recordDetails
resolver.setValue(ctx.getELContext(), null, "addressform", new Addressform());
Addressform addressform = (Addressform) resolver.getValue(ctx.getELContext(), null, "addressform");
addressform.setAddress(recordDetails.getAddress());
}
Addressform(地址表单的支持 bean)
public void save() {
FacesContext ctx = FacesContext.getCurrentInstance();
RequestContext rctx = RequestContext.getCurrentInstance();
ELResolver resolver = ctx.getApplication().getELResolver();
Records records = (Records) resolver.getValue(ctx.getELContext(), null, "records");
RecordDetails recordDetails = (RecordDetails) resolver.getValue(ctx.getELContext(), null, "recordDetails");
Mainform mainform = (Mainform) resolver.getValue(ctx.getELContext(), null, "mainform");
Person person = (Person) resolver.getValue(ctx.getELContext(), null, "person");
//Pretty lengthy SQL stuff here. Commented out. Just wanted to display the display logic below for the dialog.
if (errorMsg != null) {//If errorMsg is not null, then error occurred.
showDlgAddress = true;//Ensures address dialog remains open in event of action error.
queueErrorMessage(errorMsg);
rctx.update("dlgAddress");
return;//break out of method on error.
} else {
showDlgAddress = false;
rctx.update("dlgAddress");
}
//If everything saves without error, repopulate address and update recordDetails dialog.
recordDetails.populateAddress(records.getSelectedRecord());
mainform.updateDlgRecordDetails();
}
其他信息:
- JSF2
- Primefaces 3.5
- 雄猫 6.0
- 网豆