[jira] [Resolved] (WICKET-4383) getPage() cannot be used in Form.onSubmit() if the page hierarchy changed in a submitting component's onSubmit()

["Martin Grigorov (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WICKET-4383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Grigorov resolved WICKET-4383.
-------------------------------------

    Resolution: Not A Problem
    
> getPage() cannot be used in Form.onSubmit() if the page hierarchy changed in a submitting component's onSubmit()
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: WICKET-4383
>                 URL: https://issues.apache.org/jira/browse/WICKET-4383
>             Project: Wicket
>          Issue Type: Bug
>    Affects Versions: 1.5.4
>            Reporter: Floris Kruisselbrink
>            Priority: Minor
>         Attachments: formsubmitbutton.zip
>
>
> I have a form, which wants to get information about it's place in the page-hierarchy in the Form.onSubmit() method (in reality wicket-security does this, but the attached quickstart demonstrates the problem without wicket-security)
> The form is submitted using an AjaxSubmitLink, which also has an onSubmit() method, in which the page hierarchy is changed in such a way the form is no longer there.
> The form's own onSubmit is called later on, and (as the form is not in the page hierarchy anymore) crashes while trying to call Form.getPage().
> This same construction worked fine when our application still used wicket 1.4
> I will attach a quickstart demonstrating the problem, see the comments in FormPanel.java
> ERROR - DefaultExceptionMapper     - Unexpected error occurred
> org.apache.wicket.WicketRuntimeException: No Page found for component [ [Component id = form]]
> 	at org.apache.wicket.Component.getPage(Component.java:1765)
> 	at nl.vloris.wicketbugs.formsubmitbutton.FormPanel$1.onSubmit(FormPanel.java:28)
> 	at org.apache.wicket.markup.html.form.Form$9.component(Form.java:1169)
> 	at org.apache.wicket.markup.html.form.Form$9.component(Form.java:1164)
> 	at org.apache.wicket.util.visit.Visits.visitPostOrderHelper(Visits.java:273)
> 	at org.apache.wicket.util.visit.Visits.visitPostOrder(Visits.java:244)
> 	at org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1162)

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