Question

I have a treetable with a multiple file upload component. If i upload 1 file, it correctly updates my treetable with that file.

If i try and upload multiple files at the same time (lets say file1 and file2), it only updates the tree table with file 1. If i then upload another file (file3), it then updates the tree table with file1, file2, and file3 so it seems to be an issue with updating.

Does anyone have any insight into this or know if it’s a bug?

<h:form id="attachmentsForm" enctype="multipart/form-data">
    <p:treeTable value="#{contentEditorBacking.attachments}" var="node">
        <p:column>
            <f:facet name="header">Name</f:facet>
            <h:outputLink value="#{node.link}" target="_blank" disabled="#{node.disabled}">
                <h:outputText value="#{node.displayName}"/>
            </h:outputLink>
        </p:column>

        <p:column>
            <f:facet name="header">Size</f:facet>
            <h:outputText value="#{node.size}" />
        </p:column>

        <p:column>
            <f:facet name="header">Modified By</f:facet>
            <h:outputText value="#{node.modifier}" />
        </p:column>

        <p:column>
            <f:facet name="header">Delete</f:facet>
            <p:commandLink styleClass="ui-icon ui-icon-trash" id="deleteProperty" actionListener="#{contentEditorBacking.deleteAttachment}" 
                    rendered="#{node.canDelete}" update="attachmentsForm">
                    <f:attribute name="filename" value="#{node.displayName}" />
                </p:commandLink>
        </p:column>
    </p:treeTable>
    &nbsp;&nbsp;
    <p:fileUpload fileUploadListener="#{contentEditorBacking.handleFileUpload}"
        mode="advanced" sizeLimit="#{contentEditorBacking.fileSizeLimit}"
        invalidSizeMessage="#{contentEditorBacking.fileSizeMessage}"
        allowTypes="#{contentEditorBacking.allowedFileTypes}" update=":controlTabs:attachmentsForm" />
</h:form>

Backer

public void handleFileUpload(FileUploadEvent event) throws Exception{

        UploadedFile toSave = event.getFile();
        System.out.println("fileName = "+event.getFile());  
        String fileName = toSave.getFileName();
        String downloadLink = "";
        Long size = event.getFile().getSize();
        long version = 1;
        User user = cm.getUser();
        String creator = user.getUserName();
        Date modDate = new Date();
        boolean canDelete = true;
        boolean canUpdate = true;
        String displayName = fileName + "- pending";

        new DefaultTreeNode(new Attachment(downloadLink,size,version,creator,modDate,canDelete,canUpdate,displayName,true), attachRoot);
        addNeedToSaveMessage();
    }

EDIT

I added an id to the treeTable and changed my fileUpload update to the id of the treeTable rather than the id of the form tag and then solved my problem.

I always thought that by updating a parent element, it should update all of its children. Is that not true or are there exceptions to this as in the treeTable?

Answer 1

Apparently for the file upload component, i had to update the actual tree table rather its parent form tag.