Conditional onComplete action - xpages

In the onComplete event I have this code:
<xp:this.onComplete>
<![CDATA[XSP.partialRefreshGet("#{id:dynamicContent1}");]]>
</xp:this.onComplete>
This works fine because I essential want two partialRefreshes in the same event handler. However, this partial refresh however, fires some times when I don't want it to so I need to make it conditional something like
if (sessionScope.get("ssVariable") == true) {
do the partialRefreshGet
}
but this is expression language and not sure how to make it a conditional statement, and not sure how to get the sessionscope variable passed to it.
Is there a place that one can get some documentation and examples of EL?

You have to calculate the CSJS code as a string in SSJS code:
<xp:this.onComplete>
<![CDATA[#{javascript:
if (sessionScope.get("ssVariable") == true) {
"XSP.partialRefreshGet('" +
getComponent("dynamicContent1").getClientId(facesContext) +
"')"
}
}]]>
</xp:this.onComplete>
If the condition is true then the result of this SSJS code is a string like this:
XSP.partialRefreshGet('view:_id1:dynamicContent1')
This code is then used on client side for onComplete event.
If the condition is false then the onComplete event code is empty.

Related

NullPointerException when executing same action multiple times

In my xhtml page, I have a search button and a p:datatable to display the search results. I added a c:if condition to hide and display the datatable.
<c:if test="#{!search_bean.isResultList}">
In my managedBean, I created the flag isResultEmpty and set it to true in my doInit(). In the action of my search button (actSearchForData), I've set it to true if my List is not empty.
private String actSearchForData() throws Exception {
if(resultList.size > 0) {
isResultEmpty = false;
}
}
Now this works without any errors the first time I execute actSearchForData and my resultList is displayed. But when I try to run actSearchForData the second time, I encounter nullpointer exception. I've tried debugging by returning isResultEmpty = true after getting the resultList but this only causes my flag to always return isResultEmpty = true.
How can I execute my search function multiple times and display the results in the datatable without getting any nullpointer exceptions?
UPDATE: I've tried using render again this time for the flag like rendered="!#{search_bean.isResultEmpty}". I no longer get nullpointerexception and my result list count displays the correct number of results but my data table does not show.
The JSF way to control conditional rendering is to use the rendered attribute like
<p:dataTable id="..."
value="#{search_bean.resultList}"
var="..."
rendered="#{not empty search_bean.resultList}" />
This will not render the datatable if resultList is null or resultList.size() is 0.
you must be getting NullPointerException (maybe) - because your "resultList" is null and still you are executing "resultList.size" inside "if(..)" statement
try something like This...
private String actSearchForData() {
if(resultList==null || resultList.size>0) {
isResultEmpty=false;
}
}
This code executes "isResultEmpty=false" - if(resultList is null)
Hope this works for you...

the selection changed is not rise when I select item in the constructor

I have a view and a viewModel. In my constructor of my viewModel I have this code:
Dgd01.Add(myElement);
Dgd01SelectedIndex = 0;
I am using MVVMLight to implement the selectionChanged event of my dataGrid, but the event is not rised.
I have a button to clean the selection, then I select the element in the dataGrid and the selection event is rised.
I guess that the problem is that I am doing the selection in the constructor, but I don't know if this is the real reason of the problem and I don't know how to solve it.
May be the view model is not associated with the view when the constructor is executed.
Why can't you try the below method
You can have a private method which does the actual task when selectionChanged event fires.
void DoOperationOnSelection(int selectedIndex / object selectedItem)
{
}
So the eventHandler may call this method with selectedIndex/item
Call that method explicitly from the constructor as follows
Dgd01.Add(myElement);
DoOperationOnSelection(0);

How do I compute the Selected property of a BasicLeafNode for a Dynamic Content Control - Updated 03/26/2014

I have created an XPage with the following: Started by creating a custom layout control using the Application Layout. I aded the layout control to the xpage and then dropped in a Dynamic Content Control. I configured the control as follows:
<xe:dynamicContent id="dynamicContent1" defaultFacet="GovernanceReviews"
useHash="true">
<xp:this.facets>
<xc:ccViewDocumentTemplates xp:key="DocumentTemplates"></xc:ccViewDocumentTemplates>
<xc:ccViewGovProcurementReviews xp:key="GovProcurementReviews"></xc:ccViewGovProcurementReviews>
<xc:ccViewGovRevReporting xp:key="GovRevReporting"></xc:ccViewGovRevReporting>
<xc:ccViewGovRevWOCompleted xp:key="GovRevWOCompleted"></xc:ccViewGovRevWOCompleted>
<xc:ccViewGovernanceReviews xp:key="GovernanceReviews"></xc:ccViewGovernanceReviews>
<xc:ccViewProfilesByType xp:key="ProfilesByType"></xc:ccViewProfilesByType>
<xc:ccViewProfilesWithTargetCompl xp:key="ProfilesWithTargetCompl"></xc:ccViewProfilesWithTargetCompl>
<xc:ccViewLastUpdated xp:key="LastUpdated"></xc:ccViewLastUpdated>
<xc:ccViewUserGuide xp:key="UserGuide"></xc:ccViewUserGuide>
<xc:ccViewTracking xp:key="Tracking"></xc:ccViewTracking>
</xp:this.facets>
</xe:dynamicContent>
Then I dropped in a navigator control in the left column and created BasicLeafNodes to correspond to the dynamic content control I used the href property and used the #content="" to display the correct content.
This works just fine, but I am having problems figuring out how to make the selections in the navigator highlight when they are selected. I know I need to compute the Selectd property,but I can't figure out how to get the xp:key value so I can compare it to the SubmitValue. I know this is probably something simple, but I can't figure it out.
Can someone please enlighten me.
Thanks,
MJ
ADDED 03/26/2014 - I have a feeling that it has something to do with Using the href property of the Dynamic Content Control to perform the content switching. I know that makes the BasicLeafNodes Links. So, not sure how the Navigator records which link is being executed and how to capture that.
MJ
Add a value is the submitValue property
And in the onItemClick Event
Assign the submitted value to a viewScope variable
viewScope.Selected=context.getSubmittedValue()
And finally check if the viewScope variable equals your item submit value in the selected property. This needs to be calculated
if(viewScope.Selected="byCategory"){
return true
}else{
return false
}
The following is working for me:
if(viewScope.Selected == "byCategory"){
return true
} else{
return false
}
An equality test must be made with two equal symbols (or three). One equal symbol evidently always returns true.
I did it by jQuery. Just put the following code to the custom control, which contains navigator.
$( function() {
if (window.location.hash.length > 0) {
select()
}
});
$(window).on('hashchange', function() {
select();
});
function select() {
$(".lotusColLeft .lotusMenu .lotusBottomCorner li").removeClass(
"lotusSelected")
$(".lotusColLeft .lotusMenu .lotusBottomCorner li a")
.filter(
function() {
return window.location.hash.indexOf($(this).attr(
'href')) > -1
}).parent().addClass("lotusSelected")
}

Setting value of a Radio Button Group Client Side

I need to set the value of a Radio Button Group that has two possible values. I'm able to accomplish this with SSJS, but having issues setting it via CSJS. Any help is appreciated.
I use something like this:
function setRadioValue(value)
{
var elements = document.getElementsByName ("#{id:radioGroup1}");
for(i=0;i<elements.length;i++) {
if (elements[i].value == value) {
elements[i].checked = true;
}
}
}
Then you can just call setRadioValue("This is teh value of the Radio Button I want to set")
Thanks
You need to get the the server-side generated name of the radio button group using the #{id:} method. Example:
var radioButtonGroup = XSP.getElementById("#{id:radioButtonGroupName}");
You can then use client-side Javascript to manipulate the radioButtonGroup element. I believe you need to loop over the radio buttons in the elements until you find the radio button with the desired value. You can then set its checked value to true.

How to get the name of the current layout?

symfony getLayout does not seem to work when layout is set via view.yml. Is there anyway to get this within the controller's action class method
I recently needed this. You can do it but you just need to return the entire view.yml contents as an array:
$view_array = sfViewConfigHandler::getConfiguration(array(sfConfig::get('sf_app_config_dir').'/‌​view.yml'));
Just adjust the relative path from sf_app_config_dir (or use another marker) to get what you need.
It's not a trivial task. The view.yml, is not in the "scope" of the action.
Maybe, you can use setLayout in your action rather then in view.yml.
if you can't, for some reasons... you can try this method to reach datas in view.yml:
Is it possible to get a value from view.yml in an action
Execute the following code in the action. It works for both cases, layout set in the action or in the view.yml.
$controller = $this->getContext()->getController();
$view = $controller->getView($this->getModuleName(), $this->getActionName(), 'Success'); // viewName == 'Success' (default)
$layout_name = $view->getDecoratorTemplate(); // e.g expected: layout.php
Let us know if it works for you.

Resources