MarkupNotFoundException when fragment is rerendered during AJAX call
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Key: WICKET-1032
URL: https://issues.apache.org/jira/browse/WICKET-1032
Project: Wicket
Issue Type: Bug
Reporter: John Ray
Fix For: 1.3.0-beta4
I have a Fragment with a TextField inside of it. Everything works fine when the
page is first loaded. However inside of an AJAX call I add the TextField to be
rendered again and I get a MarkupNotFoundException from the fragment.
Apparently because the TextField asks the Fragment for the markup and the
fragment can't find it. I tracked the problem down and when I'm constructing
the Fragment I pass in a ListItem (that contains the fragment) as the
markupProvider. If I pass in the WebPage then everything works fine.
I noticed in the Fragment.chooseMarkupStream() there is this section of code
that get's called during the initial page rendering.
stream = markupProvider.getAssociatedMarkupStream(false);
if (stream == null)
{
// The following statement assumes that the markup provider is a
// parent along the line up to the Page
stream = markupProvider.getMarkupStream();
}
However during the AJAX call back Fragment.getAssociatedMarkupStream() is
called and it only has
if (markupProvider != null)
{
stream = markupProvider.getAssociatedMarkupStream(false);
}
If I add the "if (stream == null)" section that chooseMarkupStream() has to the
above code then AJAX calls work fine even if I pass in a ListItem as the
markupProvider to a Fragment. I'm not sure if this is the correct fix as I
don't know the wicket code that well. I suppose another fix might be to
prohibit passing in components such as ListItems as the markupProvider or at
least make the Java Docs a little clearer.
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