Hello,
Please check the image. Hope this is helpful.
Thank you.
On Mon, Jul 4, 2016 at 9:44 AM, Sven Meier [via Apache Wicket] <
ml-node+s1842946n4675021...@n4.nabble.com> wrote:
> Hi,
>
> I'm not sure which code is calling #isVisible() here, a stacktrace would
> help to identify the caller.
>
> Nevertheless it's quite normal for #isVisible() to be called a number of
> times. Thus it's a recommended practice to override #onConfigure()
> instead:
>
> @Override
> public void onConfigure() {
> List<Doc> docList = documentsModel.getObject();
> setVisible(docList != null && docList.size() > 0);
> }
>
> Have fun
> Sven
>
>
>
> On 03.07.2016 21:36, Iamuser wrote:
>
> > Hello,
> > Please help me with the following situation:
> > I'm using wicket 6.
> > I have a page and a form.
> > On this form I have an input, and when user hits Upload button, the list
> > with the inputs should be updated.
> >
> > However, there is a strange behaviour:
> > 1. when hitting the submit button, the onsubmit method is not
> immediatelly
> > called, but instead
> > the isVisible() method is called on a repeated number of times, which
> then
> > calls Load() of the LoadableDetachableModel is called.
> > 2. only after that the onSubmit() is finally called.
> >
> > But this behaviour, because of the isVisible() method being called
> before
> > onSubmit() does not display the new item to the list on the page. Only
> after
> > a new refresh of the page it is finally displayed.
> >
> > Here is the html and the java code:
> >
> > private class UploadForm extends Form<Doc> {
> >
> > private static final long serialVersionUID = 1L;
> >
> > public UploadForm(String id, IModel<Doc> docmodel) {
> > super(id, docmodel);
> > TextField<String> fileDescription = new
> > TextField<String>("fileDescription", new
> > PropertyModel<String>(getModelObject(), "description"));
> > add(fileDescription);
> >
> > final LoadableDetachableModel<List<Doc>> documentsModel = new
> > LoadableDetachableModel<List<Doc>>() {
> >
> > private static final long serialVersionUID = 1L;
> >
> > @Override
> > protected List<Doc> load() {
> > return SpringCtx.getAppDB(DocDao.class).selectByParentId(238);
> > }
> > };
> >
> > final WebMarkupContainer documentsContainer = new
> > WebMarkupContainer("documentsContainer");
> > documentsContainer.setOutputMarkupId(true);
> > add(documentsContainer);
> >
> > documentsContainer.add(new ListView<Doc>("documentList", documentsModel)
> > {
> > private static final long serialVersionUID = 1L;
> >
> > @Override
> > protected void populateItem(ListItem<Doc> item) {
> > item.add(new Label("document",
> > item.getModelObject().getDescription()));
> > }
> > @Override
> > public boolean isVisible() {
> > List<Doc> docList = documentsModel.getObject();
> > return docList != null && docList.size() > 0;
> > }
> > }.setOutputMarkupId(true));
> > }
> >
> > @Override
> > public void onSubmit() {
> > logger.debug("this is onsubmit()");
> >
> > Doc d = new Doc();
> >
> > try {
> > d.setFileName("test_fn");
> > d.setId(SpringCtx.getAppDB(DocDao.class).selectNextId());
> > d.setFileUrl("url");
> > d.setDescription(getModelObject().getDescription());
> > d.setParentId(238);
> >
> > SpringCtx.getAppDB(DocDao.class).insert(d);
> > getModelObject().clear();
> > feedbackPanel.info(getString("upload.document.success"));
> > } catch (Exception e) {
> > logger.error("Error uploading user file", e);
> > feedbackPanel.error(getString("upload.document.error") + " " +
> > ExceptionUtils.getRootCauseMessage(e));
> > }
> > }
> >
> > };
> >
> > <http://apache-wicket.1842946.n4.nabble.com/file/n4675020/1.png>
> >
> > Please help me understand the issure. Thank you in advance.
> >
> >
> > --
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