I'm trying to create a comment page with a variable set of comments (layed out via o:tree, thanks BalusC) that anyone can reply to. I'm displaying the h:inputTextArea via p:inplace, so there are multiple textinputareas per page with multiple commandbutton replies. I'm trying to map the command button to a single back-end variable from a specific textinputarea so that every textinputarea isn't processed each time the command button is pressed.
Edit: Code example
<o:tree value="#{xPost.post.comments.treeModel}" var="comment" varNode="node">
<o:treeNode>
<o:treeNodeItem>
<p:panel>
<h:outputText value="#{comment.commentText}" />
<p:inplace label="Reply">
<br/>
<p:editor value="#{post.newComment}" />
<p:commandButton action="#{post.saveComment('#{comment.ID'})}" value="Comment" ajax="false" />
</p:inplace>
<o:treeInsertChildren />
</p:panel>
</o:treeNodeItem>
</o:treeNode>
</o:tree>
To add to this, I'm using hibernate validation, which to my knowledge can only validate via annotations:
#NotBlank(message="Please enter a comment.")
#Length(min=1, max=10000, message="A comment must be between 1 and 10,000 characters.")
#SafeHtml(message="Invalid Rich Text.")
private String newComment = "";
So from the code above, when I have 2+ p:editor, each editor is being processed and populating the same back-bean variable. How do I force a commentButton to only validate a specific inputBox/p:editor and set the backing-bean variable.
Thank you for your help.
Just give each editor its own form. In other words, move the <h:form> from outside the <o:tree> to inside the <o:treeNodeItem>. This will ultimately render multiple forms with each its own editor and button.
You need to provide your source details for people to give you more help
In your case, I'm guessing the following should do the trick:
<ui:repeat var="comment" ...> // or equivalent like o:tree
<h:inputText value="#{comment.message} .../>
<h:commandButton actionListener="#{bean.updateMessage}">
<f:setPropertyActionListener from="#{comment}" to="#{bean.commentBeingProcessed}"/>
<!-- Or alternatively, you can set the comment object on to the command button
and receive it on the server side as event.getComponent().getAttribute("comment")
<f:attribute name="comment" value="#{comment}"/>
-->
</h:commandButton>
</ui:repeat>
Hope that helps.
Related
This question already has answers here:
How to let validation depend on the pressed button?
(4 answers)
Closed 7 years ago.
I'm trying to do something similar to this:
<h:form id="form">
<p:inputText id="input1" value="#{mb.input}" required="true" /><br />
<h:panelGroup id="panelGroup"><br />
<p:inputText id="input2" required="true" /><br />
<p:commandButton id="doSomething" value="something" action="#{mb.doSomething}" />
</h:panelGroup><br />
<p:commandButton id="save" value="Save" action="#{mb.save}" /><br />
</h:form>
Here is my problem: when I hit the save button I want the whole form to be validated where required="true" (for both input1 and input2, which works fine).
BUT, when I hit the doSomething button I would like it to check only if input2 is filled, ignoring the condition of input1 (in other words: it shouldn't work if input2 is empty but should work even if input1 is). Is there a way to do it? (And I can't use Managed Beans for that!)
use the process attribute of the <p:commandButton> like this
<p:commandButton id="doSomething" value="something" action="#{mb.doSomething}" process="input2"/>
that way it will only validate input2 upon click. as per Primefaces Documentation:
process | null | String | Component(s) to process partially instead of
whole view.
Only put immediate="true" attribute to both components inside the panel. Or you also can use Ajax for the button inside the panel for sending only the panel content.
Note 1: The input inside the panel is claiming for a value attribute.
Note 2: Also include an update attribute to both buttons. ie:
update="#form"
Note 3: Also you can include the <p:messages/> element inside the form.
So I have 2 forms and a command button with f:ajax attached on it. I want to execute the second form on click on button but it seems that it ignores when I'm passing the form's id on execute attribute. But when I replace it with 'execute=":form1"' it runs correctly(the information from the form is sent to server). Can someone tell me why won't work with the id of second form, or how can I achieve this: with one button to execute any form i want from the page.( as it is now no information is sent to server, only the listener is called).
Code bellow:
<h:form id="form1">
<h:panelGrid id="inputSection" >
<h:inputText id="input1" value="#{counterMB.number1}" />
<h:inputText id="input2" value="#{counterMB.number2}" />
</h:panelGrid>
<h:outputLabel id="sumResponse2" value="#{counterMB.sum}" />
</h:form>
<h:form id="form2">
<h:panelGrid id="inputSection" >
<h:inputText id="input1" value="#{counterMB.number1}" />
<h:inputText id="input2" value="#{counterMB.number2}" />
</h:panelGrid>
<h:outputLabel id="sumResponse2" value="#{counterMB.sum}" />
</h:form>
<h:commandButton value="Sum numbers">
<f:ajax event="click" execute=":form2" listener="#{counterMB.sum}" render=":form2 :form1"/>
</h:commandButton>
Update:
so to be more explicit: from what I have read I can use ajax to update/refresh etc some parts of a page instead of refreshing the whole page. What i have tried to do is group some components in different forms and execute a form at a time to see how it behaves. It works perfectly if I use the id of first group(form) but doesn't work at all if I use the id of the second form(it calls the action but doesn't submit any data from any form). I don't understand why. (PS for those who claim i lack some knowledge : this is the reason of asking questions isn't it? I'm trying to learn some new stuff)
It seems that you are lacking basic knowledge of how jsf works. A command button must be inside a form. And it's not possible to submit 2 forms with one single button.
The attribute execute of f:ajax tells which components to process, for example if you have 2 input texts, you can process only one and ignore the other using this attribute. but it's not possible to do what you are trying to do.
It doesn't really make sense to submit 2 forms and execute a single action method once.. there's no point in having 2 forms. why don't you put everything inside a single form?
In your current solution, you use a h:commandButton outside of any h:form - this is a little bit against HTML and JSF, so don't count on it. What I would suggest is
if you use Richfaces, put a a4f:jsFunction in every form and trigger the resulting Javascript from anywhere
if you use Primefaces, put a p:remoteCommand in every form and trigger the resulting javascript from anywhere
if you neither use any of them, put a <h:commandButton /> in every form, set the style hidden and use javascript to submit the form.
Hope it helps...
I have a query here regarding the value given to the update attribute of the primefaces command button.
Here is a simple code. I have a simple xhtml page
<h:body>
<h:form id="main">
<p:growl id="maingrowl" showDetail="true"></p:growl>
<p:panelGrid id="mainpanel" columns="2">
<p:commandButton value="Ajax Submit" update="test" id="ajax"
actionListener="#{mytestBean.display}" />
</p:panelGrid>
<p:panelGrid id="test" rendered="#{mytestBean.show}" columns="1">
<h:inputText value="#{mytestBean.val1}" />
<h:inputText value="#{mytestBean.val2}" />
<p:commandButton value="value in" id="aj" update="test"
actionListener="#{mytestBean.displaysec}">
</p:commandButton>
</p:panelGrid>
</h:form>
</h:body>
Now, If I have to update the panelgrid "test" then in the first command button I have to provide the id "test" prefixed with ":main:" in the update attribute of the command button since that is the exact id in the HTML DOM as I find it in the view source in the browser. But, I was able to update even by given just "test" in the update attribute.
So my question here is when should I use the ":" in the id or is it mandatory or is there any pre defined rule to give the id's in the attribute?
Also, I am aware of the fact that the id given in the update attribute is through the UINamingContainer in which it is placed. Please pardon me if its trivial, I am really confused here.
Any help greatly appreciated.
Thank you.
If both components (the one to update and the one that triggers the update) are inside the same NamingContainer, the relative client id withoud the : is sufficient.
NamingContainers in jsf are all those components that prepend their own id to the client id of all child components, e.g. <h:form>, <h:dataTable> or <ui:repeat> (or to be more precise: all components that implement the javax.faces.component.NamingContainer interface).
If both components are not inside the same NamingContainer, you have to use the absolute id beginning with a : from the view root.
If you are interested in more detailed information I recommend reading the javadoc of the UIComponent#findComponent() method where the search algorithm is described.
Note that the : is the default character to separate segments of a clientId. You can change it with a context parameter in your web.xml.
I want to submit (execute) values from multiple forms, not just the enclosing form. So, I want to be able to do something like this:
<h:form id="form1>
<h:inputText id="testinput1" value="#{testBean.input1}" />
</h:form>
<h:form id="form2>
<h:inputText id="testinput2" value="#{testBean.input2}" />
<h:commandButton value="Submit">
<f:ajax execute=":form1 :form2"/>
</h:commandButton>
</h:form>
How would you solve this?
What is <f:ajax execute="#all"> really supposed to do? It POSTs only the enclosing form
seems to be related, but addresses a slightly different problem and also does not solve it (or this).
Ajax or not, this is not possible with plain JSF/HTML. All input elements which needs to be processed really needs to go inside the same form.
I'm using jQuery's .load function to load one JSF page into another.
This works really well until the loaded JSF page uses some AJAX functionality. When this happens, the parent JSF page's AJAX stops working. In fact, after the two pages are combined whichever page has its AJAX called next is the one that continues to work. The other page stops working. If I use the parent page first, the child breaks. If I use the child first, the parent breaks.
Am I doing something wrong? I'm guessing JSF isn't designed for this sort of behaviour and that's fine but then how do I go about doing what I want?
Basically, we have a report page. When the user clicks the link to a report we would like the report to load dynamically into the existing page. That way, the user doesn't experience a page refresh. It's a pretty slick behaviour BUT obviously isn't ideal due to the pages breaking.
I suppose I could do this with a page that contains every report in an outputpanel and then determine which one is rendered based on a value in the backing bean but I can see lots of occasions where I'd like to be able to "inject" one page into another (for dynamic dialogs for instance) and it would suck to have to keep everything in one giant template.
Has anyone else come across this sort of problem? How did you solve it?
Do not use jQuery.load(). It does not take JSF view state into account at all, so all forms will fail to work. Rather make use of <f:ajax> and rendered attribute instead. Here's a basic example:
<h:form id="list">
<h:dataTable value="#{bean.reports}" var="report">
<h:column>#{report.name}</h:column>
<h:column>
<h:commandLink value="Edit" action="#{bean.edit(report)}">
<f:ajax render=":edit" />
</h:commandLink>
</h:column>
</h:dataTable>
</h:form>
<h:form id="edit">
<h:panelGrid columns="3" rendered="#{not empty bean.report}">
<h:outputLabel for="name" value="Name" />
<h:inputText id="name" value="#{bean.report.name}" required="true" />
<h:message for="name" />
...
<h:panelGroup />
<h:commandButton value="save" action="#{bean.save}" />
<h:messages globalOnly="true" layout="table" />
</h:panelGrid>
</h:form>
You can if necessary split off the content into an <ui:include>.