I am using primfaces3.2 and i am using the component treetable. while expanding the tree i am trying to collapse all other tree. but expand event is not working for me.
xhtml:
<p:ajax event="expand" listener="#{MyBean.onNodeExpand}" update=":form1" />
MyBean:
public void onNodeExpand(NodeExpandEvent event) {
String id = ((dummyclass) event.getTreeNode().getData()).getID();
for (TreeNode app : List.getChildren()) {
dummyclass d = (dummyclass) app.getData();
if (id.equalsIgnoreCase(d.getID())) {
app.setExpanded(true);
} else
{
app.setExpanded(false);
}
}
}
dummyclass is a pojo class which contains all the getters and setters for the treetable.
Related
My goal is to create a panel where I can drag and drop elements of two different types: button and textfield. All of the elements are stored in a TreeMap and are iterated over with JSTL <c:forEach> tag. I can add extra components and remove the most recently selected ones thorough dedicated p:commandXxx fields outside of the viewPanel. Once draggable components are in the viewPanel, I can drag and drop them. Through javascript, I'm appending top and left coordinates of a particular component before the drop action to update component's location is invoked. The delete commandButton should remove the selected element from the list and trigger the update of the viewPanel.
Problem: Deleting any component except the most recently added fails to update the viewPanel resulting in the following exception:
Severe: Error Rendering View[/developer/testDr.xhtml]
org.primefaces.expression.ComponentNotFoundException: Cannot find >component for expression "button-" referenced from "defStep-10:j_idt13"..
It appears that in render time draggable's for attribute evaluates #{child.idstepNode} to null. Does anyone know why this happens, or how to circumvent this?
Interestingly, when Delete button is clicked again or the whole page is refreshed, viewPanel renders without a hitch.
<h:form id="viewPanel" class="default-step droppable" style="width:500px;height:500px;background:green;">
<p:droppable for="viewPanel" tolerance="touch" activeStyleClass="ui-state-highlight" >
<p:ajax listener="#{stepUtility.onDrop}" update="viewPanel" />
</p:droppable>
<c:forEach items="${stepUtility.stepNodesMap}" var="child">
<c:if test="${child.value.elementType == 'BUTTON'}">
<p:outputLabel id="button-${child.value.idstepNode}" style="top:${child.value.top};left:${child.value.left};
background-color: beige;position:absolute;" value="button ${child.value.elementValue}"/>
<p:draggable for="button-${child.value.idstepNode}"/>
</c:if>
<c:if test="${child.value.elementType == 'TEXT'}">
<p:outputLabel id="text-${child.value.idstepNode}" style="top:${child.value.top};left:${child.value.left};
background-color: beige;position:absolute;" value="text ${child.value.elementValue}"/>
<p:draggable for="text-${child.value.idstepNode}" />
</c:if>
</c:forEach>
</h:form>
//...
<p:commandButton value="Delete" actionListener="#{stepUtility.removeStepNode()}"
update=":viewPanel"/>
stepUtility bean
#Named(value = "stepUtility")
#SessionScoped
public class StepUtility implements Serializable {
private Integer selecteNode;
public void setSelectedElement(Integer idstepNode) //'StepNode')
{
selecteNode=idstepNode;
}
public void addNewComp(String typeNode)
{
if(stepNodesMap == null)
stepNodesMap = new TreeMap<>();
StepNodeSimple snode = new StepNodeSimple();
Integer id = 0;
if(stepNodesMap.size()>0)
{
Integer lastNodeId = ((StepNodeSimple) stepNodesMap.lastEntry().getValue()).idstepNode;
id = lastNodeId+1;
}
snode.idstepNode = id;
snode.elementType = typeNode;
snode.elementValue = typeNode +"value";
snode.left = "2px;";
snode.top = "2px;";
stepNodesMap.put(id, snode);
}
NavigableMap stepNodesMap;
public NavigableMap getStepNodesMap() {
return stepNodesMap;
}
public void setStepNodesMap(NavigableMap stepNodesMap) {
this.stepNodesMap = stepNodesMap;
}
public void removeStepNode()
{
if(selecteNode!=null)
{
stepNodesMap.remove(selecteNode);
}
}
public void onDrop(DragDropEvent dragDropEvent)
{
String dragId = dragDropEvent.getDragId();
Map<String, String> params = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
String left = params.get(dragId + "_left");
String top = params.get(dragId + "_top");
Integer idstepNode = Integer.parseInt(dragId.substring(dragId.lastIndexOf("-")+1));
setSelectedElement(idstepNode);
StepNodeSimple element = (StepNodeSimple) stepNodesMap.get(selecteNode);
element.left = left+"px;";
element.top = top+"px;";
}
}
I have a jsf page where i show a datatable. In the p:column tag i want to set the background-Color. The Background-Color will be determined by the Method public String getTrafficColor(Trgs trgs) in the TrgsLazyDataActions Bean.
But The Parameter trgs of the Method getTrgsTrafficColor(Trgs trgs) is always null and so i get a NullPointerException.
In the p:column-tag i Transfer the tempTrgs Object
#{trgsLazyDataActions.getTrafficColor(tempTrgs)}"
The tempTrgs is the var of p:datatable and it is not null.
I don't why the transferd paramter is null in the Bean.
<p:column headerText="#{texts['trgs.atp']}"
filterBy="#{tempTrgs.atp}" width="40"
style="background-color: #{trgsLazyDataActions.getTrafficColor(tempTrgs)}">
....
</p:column>
.
#javax.faces.view.ViewScoped
#Named
public class TrgsLazyDataActions extends TrgsActionsBase implements Serializable {
//The Parameter trgs is null. I don't know why ?
public String getTrafficColor(Trgs trgs) {
Factory auditedFactory = getAuditedTrgs(trgs.getTrgsID()).getFactory();
if (trgs.getAtp() < auditedFactory.getAtpMin()) {
return Consts.RED;
} else if (trgs.getAtp() > auditedFactory.getAtpMax()) {
return Consts.YELLOW;
} else {
return Consts.GREEN;
}
}
}
I am developing a JSF application
I have 2 selectOnemenu controls and submit button.
I need to disable the button if the values of 2 fields are equal
<h:selectOneMenu id="from" value="#{currencyBean.history.fromCurrency}" >
<f:selectItems value="#{currencyBean.currency}" var="c" itemValue="#{c}" itemLabel="#{c.name}"/>
</h:selectOneMenu>
<p:outputLabel for="to" value="to:" />
<h:selectOneMenu id="to" value="#{currencyBean.history.toCurrency}" >
<f:selectItems value="#{currencyBean.currency}" var="c" itemValue="#{c}" itemLabel="#{c.name}"/>
</h:selectOneMenu>
<p:commandButton id="calculateButton" value="Convert" update=":convert :historyPanel" onstart="PF('statusDialog').show()" onsuccess="PF('statusDialog').hide()" validateClient="true" ajax="true" action="#{currencyBean.Calculate()}" />
I tried to use onchange with ajax but everytime I change one dropdown the value of the second drowpdown became null in the backbean so I cannot read it.
Here is my backbean
#Named(value = "currencyBean")
#RequestScoped
public class CurrencyBean implements Serializable {
/**
* Creates a new instance of CurrencyBean
*/
private History history;
private Currency currency;
private Date currentDate;
#Inject
private Loginbean loginBean;
private List<History> historyList;
public List<History> getHistoryList() {
int userId = loginBean.getUserId();
if (userId != -1) {
return new HistoryHelper().GetHistoryListByUser(userId);
}
return null;
}
public CurrencyBean() {
history = new History();
}
public History getHistory() {
return history;
}
public void setHistory(History history) {
this.history = history;
}
public Currency[] getCurrency() {
return Currency.values();
}
public Date getCurrentDate() {
return new Date();
}
public void Calculate() {
int userId = loginBean.getUserId();
if (userId != -1) {
new CurrencyClient().Convert(userId, this.history);
}
}
}
any clue ?
My assumption is that all of your problems come from your managed bean scope. You have #Request scope so every request your managed bean will be removed from container, thus when you define onchange="submit()" (this is only my assumption because you haven't define how you implement onchange attribute) and you select value from one selectBox component values for this component is updated but the first one is still null. When you select second selectBox value updated from first selectBox doesn't exists anymore as managed bean has been removed after first request. You should try with wider scope for instance #ViewScope. If it doesn't help then further informations like implementation onchange attribute will be needed
I'm having a hard time doing basic AJAX updates of a timeline.
Let me start with a basic example where I want to update the start and end times of a timeline based on the selection of a dropdown list:
<h:form id="form">
<h:outputLabel for="period" value="#{str.schedule_period}"/>
<h:selectOneMenu id="period" value="#{timelineController.period}" label="#{str.schedule_period}">
<f:selectItems value="#{timelineController.periodWeeks}" />
<p:ajax event="change" update="timeline" />
</h:selectOneMenu>
<pe:timeline id="timeline" value="#{timelineController.model}"
editable="true"
eventMargin="0"
minHeight="120"
stackEvents="false"
start="#{timelineController.timelineStart}"
min="#{timelineControllertimelineStart}"
end="#{timelineController.timelineEnd}"
max="#{timelineController.timelineEnd}"
showNavigation="false" showButtonNew="false"
showCurrentTime="false"
axisOnTop="true"
timeZone="#{timelineController.timezone}"
zoomMin="28800000"
dropActiveStyleClass="ui-state-highlight" dropHoverStyleClass="ui-state-hover">
<p:ajax event="drop" listener="#{timelineController.onDrop}"
global="false" process="timeline"/>
</pe:timeline>
</h:form>
When I select an item in the dropdown list, an AJAX event fires and sets the period property in the backing bean, but the new value is not reflected in the timeline component. As a workaround, I wrapped the timeline in a p:outputPanel and updated the wrapper instead and it works:
...
<h:selectOneMenu id="period" value="#{timelineController.period}" label="#{str.schedule_period}">
<f:selectItems value="#{timelineController.periodWeeks}" />
<p:ajax event="change" update="wrapper" />
</h:selectOneMenu>
...
<p:outputPanel id="wrapper">
<pe:timeline id="timeline" value="#{timelineController.model}"
editable="true"
eventMargin="0"
minHeight="120"
stackEvents="false"
start="#{timelineController.timelineStart}"
min="#{timelineControllertimelineStart}"
end="#{timelineController.timelineEnd}"
max="#{timelineController.timelineEnd}"
showNavigation="false" showButtonNew="false"
showCurrentTime="false"
axisOnTop="true"
timeZone="#{timelineController.timezone}"
zoomMin="28800000"
dropActiveStyleClass="ui-state-highlight" dropHoverStyleClass="ui-state-hover">
<p:ajax event="drop" listener="#{timelineController.onDrop}"
global="false" process="wrapper"/>
</pe:timeline>
</p:outputPanel>
Note that I also had to change the process attribute of p:ajax to wrapper.
So my first question is: why doesn't the update work without wrapping the timeline component?
My second question is about drag and drop. As you can you see from my code above, I have attached a drop listener to the timeline. And I'm also able to drag and drop events from a p:dataList BEFORE I make a selection in the dropdown list. Once I select a new period in the dropdown list, the timeline gets updated appropriately, but I'm not able to drag and drop events to the timeline any more (the onDrop listener doesn't get fired). Here's my p:dataList:
<p:dataList id="eventsList" value="#{timelineController.users}"
var="user" itemType="none">
<h:panelGroup id="eventBox" layout="box" style="z-index:9999; cursor:move;">
#{user.toString()}
</h:panelGroup>
<p:draggable for="eventBox" revert="true" helper="clone" cursor="move"/>
</p:dataList>
Any ideas what's wrong here?
I'm also including the TimelineController class for reference:
#ManagedBean
#ViewScoped
public class TimelineController {
#EJB UserService userDao;
private TimelineModel model;
private String name;
private ZoneId timezone;
private Period period;
private Duration defaultShiftDuration;
private LocalDateTime timelineStart;
private LocalDateTime timelineEnd;
#PostConstruct
protected void initialize() {
timezone = ZoneId.of("Europe/Berlin);
period = Period.ofWeeks(2);
defaultShiftDuration = Duration.ofHours(8);
timelineStart = LocalDateTime.now().with(DayOfWeek.MONDAY).withHour(0).withMinute(0).truncatedTo(ChronoUnit.MINUTES);
// create timeline model
model = new TimelineModel();
}
public TimelineModel getModel() {
return model;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getTimezone() {
return timezone.getId();
}
public void setTimezone(String timezone) {
this.timezone = ZoneId.of(timezone);
}
public List<SelectItem> getPeriodWeeks() {
List<SelectItem> weeks = Lists.newArrayList();
weeks.add(new SelectItem(1, "1 " + JsfUtil.getStringResource("schedule_week")));
weeks.add(new SelectItem(2, "2 " + JsfUtil.getStringResource("schedule_weeks")));
weeks.add(new SelectItem(3, "3 " + JsfUtil.getStringResource("schedule_weeks")));
return weeks;
}
public int getPeriod() {
return period.getDays() / 7;
}
public void setPeriod(int nWeeks) {
this.period = Period.ofWeeks(nWeeks);
timelineEnd = null;
}
public Date getTimelineStart() {
return Date.from(timelineStart.atZone(timezone).toInstant());
}
public Date getTimelineEnd() {
if (timelineEnd == null) {
timelineEnd = timelineStart.plus(period);
}
return Date.from(timelineEnd.atZone(timezone).toInstant());
}
public void setStartsOn(String startsOn) {
timelineStart = LocalDateTime.parse(startsOn + "T00:00");
timelineEnd = null;
}
public List<User> getUsers(){
return userDao.findAll();
}
public void onDrop(TimelineDragDropEvent e) {
// get dragged model object (event class) if draggable item is within a data iteration component,
// update event's start and end dates.
User user = (User) e.getData();
Date endDate = Date.from(e.getStartDate().toInstant().plus(defaultShiftDuration));
// create a timeline event (not editable)
TimelineEvent event = new TimelineEvent(user, e.getStartDate(), endDate, true, e.getGroup());
// add a new event
TimelineUpdater timelineUpdater = TimelineUpdater.getCurrentInstance(":form:timeline");
model.add(event, timelineUpdater);
}
}
The problem was a missing widgetVar attribute in the timeline component. This looks like a bug to me, since I'm not using the client side API of the component. I will file a bug in PF Extensions project.
I have a JSF page which renders a text field depending on the value of a drop down using primefaces ajax listner. The dynamic rendering is done fine. but the problem is once I submit the form the the bound value of that textfield doesn't get bound instead it is shown as null.
this is the part of my JSF only the necessary fields are included here
<h:panelGroup id="textPanel" >
<h:form id="main" prependId="false">
<h:outputText value="WorkFlow ID:" />
<h:selectOneMenu id="workFlows" value="#{workFlowSelectionController.selectedWorkFlowId}" >
<p:ajax event="change" listener="#{workFlowSelectionController.dropDownChange}" update="textPanel"/>
<f:selectItems value="#{workFlowSelectionController.allActiveworkFlows}"/>
</h:selectOneMenu>
<p:inputText value="#{workFlowSelectionController.texField}" rendered="#{workFlowSelectionController.textfieldVisibility}"/>
<p:commandButton ajax="false" value="Next" action="#{workFlowSelectionController.addWorkFlowselectionDetails}"/>
</h:form>
</h:panelGroup>
this is my managed bean
#ManagedBean
#RequestScoped
public class WorkFlowSelectionController {
private boolean textfieldVisibility = false;
private String texField;
public void dropDownChange() {
logger.info("WorkFlowSelectionController.dropDownChange() entered");
if (selectedWorkFlowId != null) {
if (selectedWorkFlowId.equals("-1")) {
textfieldVisibility = true;
operationListStatus = false;
} else {
textfieldVisibility = false;
operationListStatus = true;
}
} else {
textfieldVisibility = false;
operationListStatus = true;
}
public void addWorkFlowselectionDetails() throws CloneNotSupportedException {
System.out.println("Selected Value of Text Field is" + texField);
}
public String getTexField() {
return texField;
}
public void setTexField(String texField) {
this.texField = texField;
}
}
i haven't included the dropdown code of the backing bean. i just need an idea of what i am doing wrong here if i remove the rendered attribute of the textfield it works fine.
thank you
Put the bean in the view scope instead of request scope. A request scoped is recreated on every single HTTP request. The boolean property will default to false again whenever you submit the form, so the submitted value won't be processed then.
#ManagedBean
#ViewScoped
public class WorkFlowSelectionController {
//
}
A view scoped bean will live as long as you're (ajax-) interacting with the same view by returning null or void from action(listener) methods.