Sorry to visit back on this subject. I've been digging through the
source-code and javadocs to get my head around the way validation is handled
and I was left wondering over one final aspect of the whole set.
Where do I tell Tapestry / a form / a form-element to use my custom
implementation of ValidationDecorator. As in, I want the
DefaultValidationDecorator to be ignored and instead use my own.
Regards,
Martin
On 6/2/07, Howard Lewis Ship <[EMAIL PROTECTED]> wrote:
Ultimately, the control over exception reporting is in the hands of the
ValidationDecorator. It is responsible for decorating Label components
and
the form control element components, so it can choose do whatever you
want.
There's a lot of nice built in support, that coordinates the
ValidationDecorator with the built-in CSS and JavaScript libraries, but
you
can absolutely go your own path on this.
On 6/1/07, Martin Grotzke <[EMAIL PROTECTED]> wrote:
>
> On Fri, 2007-06-01 at 12:02 +0200, Katarzyna Marszalek wrote:
> > From looking at the component reference for Tapestry 5, I'm a bit
> > puzzled by the presence on the Errors component (which displays all
> > errors in a form as a list - rather exotic case, if you ask me,) but
no
> > means of fine-controlling where the error message for a particular
field
> > should be displayed. Is it just not implemented yet, or am I missing
> > some other mechanism?
> >
> > In Tapestry 4 the messages were displayed immediately after fields,
> > which was not perfect (if a design required some additional markup
> > between field and the error {example: form in a table, errors in the
> > right column}, this created a nasty problem,) and I was hoping for
some
> > more flexible mechanism for placing errors in Tapestry 5.
> >
> > If it's not implemented yet, I would propose extending the Errors
> > component, so that it can take a list of components to display errors
> > for (in a special case, only one could be provided, and then the
> > component would not display a list, but just a message {maybe within a
> > SPAN element with an error class}) - do other users think this would
be
> > useful?
> Yes, we also would like to have such a solution!
>
> Cheers,
> Martin
>
>
> >
> > Regards,
> > Katarzyna Marszałek
> >
> >
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> http://www.javakaffee.de/blog/
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--
Howard M. Lewis Ship
TWD Consulting, Inc.
Independent J2EE / Open-Source Java Consultant
Creator and PMC Chair, Apache Tapestry
Creator, Apache HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
