>So in getObject that is only called in the renderphase in an ajax
>request you throw an restart exception?
To be very clear, no exception is thrown on re-render, the restart exception
is only thrown in the initial render. I trace the Wicket code and it's
re-rendering, but the end result on the browser side is wrong. Why in Ajax,
only half of the ajax-response get to the browser and the exact same work in
non-Ajax?
>i believe that igor had the same kind of thread a few days back
Yes, this is a follow up of that. Igor showed an ErrorAwareModelAdapter. My
simplified test does the same on model error: call page.detach(), throw new
AbstractRestartResponseException().
Is it possible to try running my test code and see what is going on? Maybe
something is not quite right in Wicket?
On Mon, Mar 24, 2008 at 3:16 PM, Johan Compagner <[EMAIL PROTECTED]>
wrote:
> So in getObject that is only called in the renderphase in an ajax
> request you throw an restart exception? We dont really support that
> and i believe that igor had the same kind of thread a few days back.
>
> Make a issue for this if you want.
>
> On 3/24/08, Matthew Young <[EMAIL PROTECTED]> wrote:
> > Here is my test code:
> >
> > public class HomePage extends WebPage {
> >
> > private static final long serialVersionUID = 1L;
> >
> > private String word;
> >
> > public HomePage(final PageParameters parameters) {
> >
> > add(new FeedbackPanel("feedback") {
> > private static final long serialVersionUID = 1L;
> > @Override protected void onBeforeRender() {
> > System.out.println("= = = = FeedbackPanel
> > onBeforeRender()");
> > System.out.println(" FeedbackbackMessageModel
> = "
> > + getFeedbackMessagesModel().getObject());
> > super.onBeforeRender();
> > }
> > }.setOutputMarkupPlaceholderTag(true));
> > // if the word "blowup" is entered,
> > //this register a error message and throw new
> > AbstractRestartResponseException()
> > IModel model = new Model() {
> > private static final long serialVersionUID = 1L;
> > @Override public Object getObject() {
> > if (word != null && word.equals("blowup")) {
> > word = "-w-e-b-l-e-w-u-p-";
> > HomePage.this.fatal("[2/2]This message is from
> > Model."); // why this is NOT render in Ajax?
> > getPage().detach();
> > System.out.println("! ! ! ! ! throwing new
> > AbstractRestartResponseException()");
> > throw new AbstractRestartResponseException() {
> > private static final long serialVersionUID = 1L;
> > };
> > } else {
> > return "The word is: \"" + (word == null ? " n u l l
> " :
> > word) + "\"";
> > }
> > }
> > };
> > add(new Label("message", model) {
> > private static final long serialVersionUID = 1L;
> > @Override protected void onBeforeRender() {
> > System.out.println("= = = = Label onBeforeRender(),
> model =
> > " + getModel().getObject());
> > super.onBeforeRender();
> > }
> > }.setOutputMarkupId(true));
> > Form form = new Form("form", new CompoundPropertyModel(this));
> > add(form);
> > form.add(new TextField("word").setRequired(true));
> > AjaxFallbackButton submitButton = new
> > AjaxFallbackButton("submitButton", form) {
> > private static final long serialVersionUID = 1L;
> > @Override protected void onSubmit(AjaxRequestTarget target,
> Form
> > f) {
> > if (word != null && word.equals("blowup")) {
> > HomePage.this.error("[1/2]This message is from
> onSubmit.
> > There should also be a message from model");
> > }
> > if (target != null) {
> > target.addComponent(HomePage.this.get("feedback"));
> > // clear error feedback if any
> > target.addComponent(HomePage.this.get("message"));
> > }
> > }
> >
> > @Override protected void onError(AjaxRequestTarget target,
> Form
> > f) {
> > target.addComponent(HomePage.this.get("feedback"));
> > // show updated error feedback
> > }
> > };
> > form.add(submitButton);
> > }
> > }
> >
> > Things work perfectly in non-Ajax. But in Ajax, after 'throw new
> > AbstractRestartResponseException()' in model, the Ajax response to the
> > browser is wrong in two places. 1) the feedback component don't have
> the
> > second message register in the model, only the message from
> onSubmit(target)
> > show. 2) the Ajax response is missing the second half: no Label
> component
> > and the </ajax-response> end tag.
> >
> > ===== This is the normal Ajax response copy from the debug panel:
> >
> > INFO: Received ajax response (257 characters)
> > INFO:
> > <?xml version="1.0" encoding="UTF-8"?><ajax-response><component
> > id="feedback4" ><![CDATA[<span id="feedback4">
> >
> > </span>]]></component><component id="message1" ><![CDATA[<span
> > id="message1">The word is: "bla"</span>]]></component></ajax-response>
> > INFO: Response parsed. Now invoking steps...
> > INFO: Response processed successfully.
> >
> > ===== This is the Ajax response after 'throw new
> > AbstractRestartResponseException()':
> >
> > INFO: Received ajax response (339 characters)
> > INFO:
> > <?xml version="1.0" encoding="UTF-8"?><ajax-response><component
> > id="feedback4" encoding="wicket1" ><![CDATA[<span id="feedback4">
> > <ul>
> > <li class="feedbackPanelERROR">
> > <span class="feedbackPanelERROR">[1/2]^This message is from
> onSubmit.
> > There should also be a message from model</span>
> > </li>
> > </ul>
> > </span>]]></component>
> > ERROR: Error while parsing response: Could not find root <ajax-response>
> > element
> > INFO: Invoking post-call handler(s)...
> > INFO: Invoking failure handler(s)...
> >
> > From tracing the wicket code, I just don't see how this can be. I see
> > AjaxResponseTarget#response() is called again, and
> > response.write("</ajax-response>");
> > is called on line 539. But in the end the Ajax response is wrong.
> >
> > What is wrong? Is this a bug?
> >
> >
> > Here is the WicketApplication for the non-Ajax case:
> >
> > public class WicketApplication extends WebApplication
> > {
> > public WicketApplication() {
> > }
> >
> > public Class<? extends WebPage> getHomePage() {
> > return HomePage.class;
> > }
> >
> >
> > @Override public RequestCycle newRequestCycle(Request request,
> Response
> > response) {
> > return new WebRequestCycle(this, (WebRequest) request,
> (WebResponse)
> > response) {
> > @Override public Page onRuntimeException(Page page,
> > RuntimeException e) {
> > // page can be null
> > if (page == null) {
> > return super.onRuntimeException(page, e);
> > }
> > return page;
> > }
> > };
> > }
> >
> > }
> >
>
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