[jboss-user] [JBoss Seam] - [SEAM+RICHFACES] Problems using rich:togglePanel
Hi,
today I had a problem in Seam using the togglePanel component, in simple words I have a
toggle panel with 2 states, the first has just 1 link, if I click it will switch to an
edit input control and a button to save the control.
When I click the first button I set the bean to edit (that is null at first) but when I
try to save it I get a NPE like as the conversation was closed.
This is my code:
view:
| <rich:togglePanel id="gctp" switchType="client"
stateOrder="txt,edit" >
| <f:facet name="txt">
| <h:panelGroup>
| <rich:toggleControl for="gctp">
| <a:commandLink value="Aggiungi gruppo"
action="#{homepageHelper.preparaAggiuntaGruppo}"></a:commandLink>
| </rich:toggleControl>
| </h:panelGroup>
| </f:facet>
| <f:facet name="edit">
| <h:panelGroup>
| <h:outputText value="Gruppo: "></h:outputText>
| <h:inputText
value="#{homepageHelper.gruppoEdit.descrizione}"></h:inputText>
| <rich:toggleControl for="gctp">
| <a:commandLink action="#{homepageHelper.salvaGruppo}"
value="Salva" />
| </rich:toggleControl>
| </h:panelGroup>
| </f:facet>
| </rich:togglePanel>
|
bean (Scope=CONVERSATION):
| @Name("homepageHelper")
| @Scope(ScopeType.CONVERSATION)
| public class HomepageHelper implements Serializable {
|
| private Gruppo gruppoEdit; // gruppo usato per l'aggiunta o la modifica
|
| public Gruppo getGruppoEdit() {
| if (gruppoEdit==null) {
| gruppoEdit=new Gruppo();
| System.out.println("NEWGET");
| System.out.println("HPH: "+this);
| }
| System.out.println("GET");
| return gruppoEdit;
| }
|
| public void setGruppoEdit(Gruppo gruppoEdit) {
| System.out.println("SET: "+gruppoEdit);
| System.out.println("HPH: "+this);
| this.gruppoEdit = gruppoEdit;
| }
|
| public void preparaAggiuntaGruppo() {
| Gruppo g = new Gruppo();
| g.setContatto(loggedUserManager.getLoggedUser());
| g.setDescrizione("nuovo");
| System.out.println("pag");
| setGruppoEdit(g);
| }
|
| public void preparaModificaGruppo() {
| setGruppoEdit(getGruppoSelezionato());
| }
|
| public void salvaGruppo() {
| // Se sono in modifica
| System.out.println("GE: "+getGruppoEdit().getDescrizione());
| System.out.println("HPH: "+this);
| /*if (entityManager.contains(getGruppoEdit())) {
| entityManager.merge(getGruppoEdit());
| } else {
| entityManager.persist(getGruppoEdit());
| }
| entityManager.flush(); // Salvo
| */
| }
|
| ...
|
where do I wrong?
I noticed during my tests that the conversation object HomepageHelper has different
instances between switching.
Also I tried to do now use togglePanel and it works, like that:
| <a:form id="gcform">
| <a:commandLink value="Aggiungi gruppo"
action="#{homepageHelper.preparaAggiuntaGruppo}"
reRender="gcform"></a:commandLink>
| <h:outputText value="Gruppo: "></h:outputText>
| <h:inputText
value="#{homepageHelper.gruppoEdit.descrizione}"></h:inputText>
| <a:commandLink action="#{homepageHelper.salvaGruppo}"
value="Salva" reRender="gcform"/>
| </a:form>
|
I don't know if it is a seam problem or a richfaces problem (or my problem :D) so I
post this in both the forums...
thanks
Demetrio Filocamo
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