I have the following page:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:head>
<title>Fire - Registration</title>
</h:head>
<h:body>
<f:view>
<f:event type="preRenderView" listener="#{confirmPasswordResetBean.bindSessionKey()}"/>
</f:view>
<p:growl id="growl" showDetail="true" life="5000" />
<h:form>
<p:panel header="Select your new password">
<h:panelGrid columns="2" cellpadding="5">
<p:outputLabel for="newPassword" value="Type your new password"/>
<p:password id="newPassword"
value="#{confirmPasswordResetBean.firstPassword}"
feedback="true"/>
<p:outputLabel for="retypedPassword" value="Retype your password"/>
<p:password id="retypedPassword"
value="#{confirmPasswordResetBean.secondPassword}"/>
</h:panelGrid>
<p:commandButton id="confirmButton"
value="reset"
action="#{confirmPasswordResetBean.doResetPassword()}"
update=":growl"/>
</p:panel>
</h:form>
</h:body>
The backing bean used above is RequestScoped, and the page itself takes a single parameter (sessionKey)...what I want to do is to:
1. Bind sessionKey to a variable in the backing bean. This is straightforward enough.
2. Use the bound value of sessionKey when executing dedicated logic in the same bean, when the client presses the commandButton.
The problem is that pressing the button starts a new request, which invalidates both the current bean (with the bound value), as well as the external page context...I thus lose all means to get a hold of sessionKey from either the bean or the page parameters...how can I resolve this? I am relatively new to both web programming and JSF, so pardon me if this has an obvious answer.
Either put the bean in the view scope, so that it lives long as you're interacting with the same view, or pass the request parameter by <f:param> to the subsequent requests.
<p:commandButton ...>
<f:param name="sessionKey" value="#{param.sessionKey}" />
</p:commandButton>
By the way, you'd rather have used <f:viewParam> to bind the request parameter to the bean directly.
<f:metadata>
<f:viewParam name="sessionKey" value="#{bean.sessionKey}" />
</f:metadata>
See also:
What can <f:metadata>, <f:viewParam> and <f:viewAction> be used for?
Related
This question already has answers here:
Invoke JSF managed bean action on page load
(4 answers)
Closed 7 years ago.
Is there an autoload command within JSF or PrimeFaces?
I have a JSF template that I use for my facelets:
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
template="template.xhtml"
xmlns:p="http://primefaces.org/ui"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<h:form>
<p:remoteCommand name="onload" action="#{mainMenuBean.setMenuCategories}" autoRun="true" />
</h:form>
<ui:define name="west">
<ui:include src="mainmenu.xhtml" />
</ui:define>
<ui:define name="center">
<p:outputLabel value="Zentrum" />
<h:form>
<p:remoteCommand name="rc" update="msgs" actionListener="#{mainMenuBean.setMenuCategories()}" />
<p:growl id="msgs" showDetail="true" />
<p:commandButton type="button" onclick="rc()" value="Execute" icon="ui-icon-refresh" />
</h:form>
</ui:define>
</ui:composition>
Now the p:remoteCommand does not work for some reason. Is there are command that I could place instead of p:remoteCommand to automatically execute some bean method everytime it gets loaded?
JSF 2.2 has viewAction, which can be executed on each load or on each get (and skipped on postbacks). It's placed in meta part of page:
<f:meta>
<f:viewAction action="#{anyBean.anyAction}"/>
</f:meta>
edit: mind that this is an action component, so it's execution will depend on any preceding validations / conversions being successful.
I'm unable to use ui:include in tabView. I'm trying to make dynamic tabs using included Facelet.
Here's my code:
<p:tabView id="panelGl" var="tabContent" value="#{mainPageBackingBean.tabs}" widgetVar="panelGlJs" style="height: 100%;" dynamic="true" >
<p:ajax event="tabClose" listener="#{mainPageController.onTabClose}" oncomplete="questionDialogWV.show()" update="#(this) :questionForm:questionFormPanel" />
<p:ajax event="tabChange" onstart="setActive()" update="#(this)" />
<p:tab title="#{tabContent.title}" titletip="#{tabContent.description}" closable="true">
<ui:include src="#{mainPageBackingBean.tabContents}" />
</p:tab>
</p:tabView>
And #{mainPageBackingBean.tabContents} runtime value is pointing at this Facelet:
<?xml version="1.0" encoding="UTF-8"?>
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:fn="http://java.sun.com/jsp/jstl/functions"
xmlns:p="http://primefaces.org/ui">
<p:panel>
<h:form>
<p:commandButton id="testEmail" value="" process="#this" actionListener="#{communicationChannelsController.testEmailChannel()}"/>
</h:form>
</p:panel>
</ui:composition>
When I use the above ui:include outside of p:tabView it works normally (I am able to invoke communicationChannelsController.testEmailChannel() without a problem). Also when I copy the contents of above file inside p:tab everything works fine also.
Problem is that, when combined p:tab and ui:include do not work, this bean method is not called.
What is the best approach at creating dynamic tabs using some navigation bean like mainPageBackingBean in my example?
I think i came across a bug of #ViewScoped with a4j:commandButton.
I have a very complex form where all actions use a4j, except those that need to upload data.
And depending on the order of the commands the validation of the viewParam breaks.
Here is the working code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:a4j="http://richfaces.org/a4j" >
<f:metadata>
<f:viewParam id="viewParam" name="viewParam" value="#{bean.viewParam}" required="true" />
</f:metadata>
<h:head>
<title>Test View Param</title>
</h:head>
<h:body>
<h:message for="viewParam" />
<hr/>
<h:form>
#{bean.viewParam}<br/>
<h:commandButton value="cmdButton" />
<a4j:commandButton value="a4jBtn" execute="#this" render="#form" />
</h:form>
</h:body>
</html>
just click on the a4jBtn and then on the cmdButton to see the problem.
you will see that the parameter is still there! but that the validation fails.
<t:saveState> does not help,
<rich:message> is also not better, but
<h:commandButton value="ajaxBtn" ><f:ajax execute="#this" render="#form" /></h:commandButton>
instead of
<a4j:commandButton value="a4jBtn" execute="#this" render="#form" />
does work correctly!
Using myFaces 2.0.15 and richFaces 4.2.3.Final on Tomcat 6.0.18 and jboss-el 2.0.0.GA.
i could workaround my problem by using f:ajax instead of a4j:commandButton, but maybe you have a better idea, or you could just explain to me what is going wrong?
You basically need to retain the view parameters on synchronous postbacks. As you're using OmniFaces, you could use <o:form> for that.
<o:form includeViewParams="true">
Or as you're already using a view scoped bean, trigger the validation only on non-postbacks.
<f:viewParam ... required="#{not facesContext.postback}" />
Or, as you're using OmniFaces, you could use <o:viewParam> instead which skips the validation/conversion/update on postbacks.
<o:viewParam ... />
I have this composition :
<!DOCTYPE html>
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:panelGroup rendered="#{empty userc.userb.user.id}">
<h:panelGrid columns="2" >
<h:outputLink value="system/register.xhtml">Register</h:outputLink>
<h:outputLink value="system/login.xhtml">Login</h:outputLink>
</h:panelGrid>
</h:panelGroup>
</ui:composition>
If the user click in Login the page is redirect to system/login.xhtml, which is correct, but if the user, click in Login again, it is redirect to system/system/login.xhtml.
I know a solution for this, which BalusC help me out a long time ago:
<base href="#{fn:replace(request.requestURL, fn:substring(request.requestURI, 1, fn:length(request.requestURI)), request.contextPath)}/" />
It solve my problem, but if I have some ManageBean instancied when I click in some link the bean it's invalidate.
How mantain the url path in every link page and keep the session in the Managed beans ?
Use <h:link> instead. JSF will append the right context path and FacesServlet mapping.
<h:link value="Register" outcome="/system/register" />
<h:link value="Login" outcome="/system/login" />
See also:
Communication in JSF 2.0 - Implicit navigation
Due to some custom components which expect a bean name (NOT the bean instance) in their attributes I need to pass the actual bean name between pages. As the bean itself is also used by non-custom components, I would like to avoid using additional ui:param (like described here Passing action in <rich:modalPanel>) since it will essentially specify the same bean.
Is it possible to specify component's action using bean name provided with ui:param?
Basically I am trying to achieve the following:
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
template="/template.xhtml">
<ui:param name="beanName" value="sessionBean"/>
...
</ui:composition>
and template.xhtml is
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:a4j="http://richfaces.org/a4j"
template="/someothertemplate.xhtml">
</ui:define name="somename">
<h:form>
<a4j:commandButton value="test" action="#{beanName.delete}"/>
</h:form>
</ui:define>
</ui:composition>
Although delete method is properly defined (verified with action="#{sessionBean.delete}") the above code gives me
javax.faces.FacesException: #{beanName.delete}: javax.el.MethodNotFoundException: /template.xhtml #201,89 action="#{beanName.delete}": Method not found: sessionBean.delete()
You should be able to reference the bean via its scope:
<a4j:commandButton value="test"
action="#{sessionScope[beanName].delete}"/>
<a4j:commandButton value="test" action="#{bean[action]}" />
The params to pass
<ui:param name="bean" value="#{sessionBean}" />
<ui:param name="action" value="delete" />
you can use #{bean['delete']} if your action name is fixed.