[PATCH] JXPATHBinding : when saving the form, remove xml elements if the value
of the widget is null
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Key: COCOON-1687
URL: http://issues.apache.org/jira/browse/COCOON-1687
Project: Cocoon
Type: Bug
Components: Blocks: Forms
Versions: 2.1.8-dev (Current SVN), 2.2-dev (Current SVN), 2.1.7
Reporter: Philippe Gassmann
Attachments: ValueJXPathBinding.java.patch
When a form is saved using a JXPathBinding, the xml elements that correspond to
null widget values must be removed.
Here is our problem : we have a form containing a "date widget" that is not
mandatory,
1. the user wants to set a value to this widget ex 2005/05/09
2. the user save this form
3. the user does not want the date to be set anymore (why ? why not !)
4. the user edit the value removing its content (ie the value of the widget
will be null)
5. the user save the form
6. when the user wants to view what's happened, he see : the element containing
the value of the date is present, if he loads the form again he found :
1970-01-01 in the date field (the org.w3c.util.DateParser return this value if
empty string its given).
In general, it has no sense for kind of data (integer, float, date...) to have
three "state" : empty, null and filled with a value !
So here is a patch to correct this :
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