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[rbhayani]

Hi,

If someone could please guide me with this issue?

I am having a strange issue with seam. I have this '.xhtml' page, on which I have multiple rows of data getting populated. I have provided a button Delete next to each row. Now, when I click this button to delete the row, all goes well if I descend from top to bottom or if I delete and intermediate row. However when I try to delete the last row, all my entries disappear and I have to reload the page to see all my entries. They don't get deleted in one shot but they disappear and the page goes blank unless I refresh it.

Why does this happen?

Please keep advised.

Thanks,
Raziya

[nickarls]

Show code and setup.

[nickarls]

BTW, are you binding the table itself to a backing bean component and/or using immediate?

[rbhayani]

here's the code?

<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
                      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
        xmlns:s="http://jboss.com/products/seam/taglib"
        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:rich="http://richfaces.org/rich" template="layout/template.xhtml">

        <ui:define name="topnav">
                <ui:include src="layout/mucc_nav.xhtml">
                        <ui:param name="page" value="callblock" />
                </ui:include>
        </ui:define>

        <ui:define name="body">
                <h:form>
                        <h:messages globalOnly="true" styleClass="message" />

                        <rich:panel>
                                <f:facet name="header">Call Block</f:facet>

                                <f:subview id="no_blockaddress"
                                        rendered="#{!userblockphoneaddresses.rowAvailable}">
                                        <p><b>You have not set any blocking rules</b></p>
                                </f:subview>

                                <p>Set your call blocking rules here :</p>

                                <f:subview id="blockaddress"
                                        rendered="#{userblockphoneaddresses.rowAvailable}">
                                        <h:dataTable value="#{userblockphoneaddresses}" var="phone">
                                                <h:column>
                                                        <f:facet name="header">Phone Address</f:facet>
                                                        <h:outputText value="#{phone.phoneAddress}"></h:outputText>
                                                </h:column>
                                                <h:column>
                                                        <h:commandButton value="Delete"
                                                                action="#{showuserblockphoneaddresses.delete(phone)}" />
                                                </h:column>
                                        </h:dataTable>
                                </f:subview>

                                <dd><h:inputText
                                        value="#{showuserblockphoneaddresses.phoneAddress}" size="15" /></dd>
                                <dd><h:commandButton
                                        action="#{showuserblockphoneaddresses.add}"
                                        value="Add Block Address" /></dd>
                        </rich:panel>

                </h:form>
        </ui:define>

</ui:composition>

[rbhayani]

Yes I am binding Stateful bean as a backing bean of JSF

[nickarls]

Could you post the backing bean also?

[rbhayani]

@Stateful
@Name("showuserblockphoneaddresses")
public class BlockAddressAction implements BlockAddress, Serializable {

        @In(value = "currentUser", required = false)
        User user;

        @PersistenceContext(type = PersistenceContextType.EXTENDED)
        EntityManager em;

        @DataModel
        List<UserBlockPhoneAddress> userblockphoneaddresses;

public String delete(UserBlockPhoneAddress selectedUserBlockPhoneAddress) {    
                if (selectedUserBlockPhoneAddress != null) {                   
                        em.remove(selectedUserBlockPhoneAddress);
                }
                return findBlockAddresses();
        }

[nickarls]

The issue remains even if you have no subview?

[rbhayani]

Haven't tried that yet...do you suggest to try that?

[nickarls]

Doesn't hurt trying. Just guessing here...

[rbhayani]

Oh ok then, lemme try it and see what happens. Will keep you posted about it.

[rbhayani]

Hey Nicklas,

It's amusing...Its working...
What's the issue with <f:subview>? Do you have any justifications?

Thanks alot for your support.

regards,
Raziya

[nickarls]

None whatsoever, just tried to isolate the problem. I've never used subviews, I usually stick to the rendered attribute on table itself or use some combination of s:div + rendered or ui:include

[rbhayani]

Ok...

There's another issue that I face. I have few recorded messages. I try to play them when someone presses a play button, and I give them an option to delete that message too.

<h:dataTable value="#{uservoicemessages}" var="phone">
        <h:column>
        <f:facet name="header">Read</f:facet>
        <h:outputText value="#{phone.read}"></h:outputText>
        </h:column>
        <h:column>
        <f:facet name="header">From</f:facet>
        <h:outputText value="#{phone.phoneAddress}"></h:outputText>
        </h:column>
        <h:column>
        <f:facet name="header">Date</f:facet>
        <h:outputText value="#{phone.dateAddedOn}"></h:outputText>
        </h:column>
        <h:column>
        <s:button value="Delete" action="#{showuservoicemessage.delete}" />
        </h:column>
        <h:column>
        <s:button value="Play" action="#{showuservoicemessage.play}"></s:button>
        </h:column>
</h:dataTable>

I am using the <object> tag to insert the player on the xhtml page. With the autostart option set to true.

<object classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" width="120" height="30">
                                                                  <param name="URL" value= {showuservoicemessage.currentVoiceMessage}"/>
         <param name="autoStart" value="true"/>
         <param name="uiMode" value="mini"/>
        <embed src="#{showuservoicemessage.currentVoiceMessage}" autostart="true"/>
</object>

However when the user presses delete, the last played message repeats itself. I believe this is happening because the "autostart=true". Can you please guide to have this problem fixed? Or if you could please suggest any other mechanism by which I can play the message?

Regards,
Raziya

[nickarls]

Never done it, but does it work if you place a s:div with some rendered condition that is flipped to false when you think the object-tag might fire when it shouldn't?