On Tue, 02 Nov 2010 20:33:27 -0200, Rich M <rich...@moremagic.com> wrote:
Hi,
Hi!
so I've had to add some mixins to a form to conditionally handle some
form elements based on used input. A user selects a certain select list
option, some fields get disabled or enabled as a result type thing.
Does all this logic need to be implemented server-side? If yes and they
invole a little amount of data, you can generate JavaScript to handle all
this client-side.
Have you thought about doing a triggering an event using a little bit of
JavaScript and make return a JSONObject or JSONArray in your event handler
method containing the needed data?
Also, I know it's possible to pass all the form values through as
request parameters via AJAX
Yes. See http://api.prototypejs.org/ajax/ajax/request/,
http://api.prototypejs.org/dom/form/serialize/,
http://api.prototypejs.org/dom/form/request/ and
http://madchicken.altervista.org/js/deserialize.js (found here:
http://madchicken.altervista.org/tech/2006/02/prototype-form-serialization-and.html).
If you're using another JavaScript framework it probably offers something
like that too.
and copy them into the property bindings of the form elements manually,
but that seems pretty excessive.
You won't need that. Just submit the form by JavaScript and Tapestry will
set the properties.
I hope that's not my best option =/.
IMHO, your scenario is quite specific, so you'll need custom JavaScript.
You want to submit a form and update some fields but not others.
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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