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From "Simone Gianni (JIRA)" <j...@apache.org>
Subject [jira] Updated: (COCOON-1812) Javaflow and Ajax when sending two forms one after eachother
Date Mon, 27 Mar 2006 00:46:26 GMT
     [ http://issues.apache.org/jira/browse/COCOON-1812?page=all ]

Simone Gianni updated COCOON-1812:
----------------------------------

    Attachment: javaflow-ajax.diff

Patch for javaflow ajax continue

> Javaflow and Ajax when sending two forms one after eachother
> ------------------------------------------------------------
>
>          Key: COCOON-1812
>          URL: http://issues.apache.org/jira/browse/COCOON-1812
>      Project: Cocoon
>         Type: Bug
>   Components: Blocks: Forms, Blocks: Java Flow
>     Versions: 2.1.9-dev (current SVN)
>     Reporter: Simone Gianni
>     Priority: Critical
>  Attachments: javaflow-ajax.diff
>
> In javaflow, if I try to send an ajax form and then send another ajax form I obtain a
NPE originating from JXMacroHelper.
> For example :
>   FormInstance fi = new FormInstance("myform.def.xml");
>   fi.show("mypipe");
>   fi = new FormInstance("myotherform.def.xml");
>   fi.show("myotherpipe");
> I receive an NPE originating from JXMacroHelper:162  while showing the second forms.
> After investigations i noticed that the second form was displayed following the ajax
behaviour, while this second form is new and should not be "ajaxed". This causes the updatedWidgets
list to be null (both in form and in JXMacroHelper) and thus the NPE.
> Sniffing the http traffic showed me that while in javascript the submission of the first
form causes a <bu:continue/> and a new non-ajax request from the browser, while with
javaflow this does not happen.
> Seems like the lines from 176 to 201 of /cocoon-2.1.X/src/blocks/forms/java/org/apache/cocoon/forms/flow/javascript/Form.js
were not ported to the javaflow FormInstance.

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