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https://issues.apache.org/jira/browse/WICKET-2688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsutomu YANO updated WICKET-2688:
---------------------------------
Attachment: wicket-bugtest.zip
a sample project file.
> Versioned form with FileUploadField will expire page if you submit the form
> twice.
> ----------------------------------------------------------------------------------
>
> Key: WICKET-2688
> URL: https://issues.apache.org/jira/browse/WICKET-2688
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.4.5
> Reporter: Tsutomu YANO
> Attachments: wicket-bugtest.zip
>
>
> If a form has FileUploadField and versioned, Page, on which the form is, will
> be expired at second post of the form.
> run a attached project file. In this sample program, onSubmit() method of
> Form always displays same page with an error message. Post the form again,
> then page will be expired.
> This problem will occur if a versioned property of FileUploadField is true.
> If the property is false, this problem never occurs.
> If you use setVersioned() method of Form with FileUploadField, the
> 'versioned' property of the FileUploadField becomes true automatically, so
> this problem easily occurs in the timing not anticipated.
> I noticed version number of page up twice on 'detach' time, if
> FileUploadField is versioned.
> I expect, this problem might occur only for components with isMultiPart() ==
> true, although I could not found the evidence.
> If so, 'versioned' property of such component must never become true. In
> addition, setVersioned() method of Form component should check children are
> Multipart or not, like below.
> @Override
> public final Component setVersioned(final boolean isVersioned)
> {
> super.setVersioned(isVersioned);
> // Search for FormComponents like TextField etc.
> visitFormComponents(new FormComponent.AbstractVisitor()
> {
> @Override
> public void onFormComponent(final FormComponent<?>
> formComponent)
> {
> if(!formComponent.isMultiPart()) { //set true only if the
> child is not multipart component.
> formComponent.setVersioned(isVersioned);
> }
> }
> });
> return this;
> }
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