[support] FAPI and "returned" page

[Metzler, David]

Yes,  remember also the ('#type'=>'hidden')  they're good for passing
data from the form.... just like making hidden fields in html. These are
all passed to the $form_values section of the form array.  

I also wanted to make sure you know using form_set_error to indicate
what fields contain errors etc. 

It took me a while to find this the first time. 

Happy coding :) 

Dave

-----Original Message-----
From: support-bounces at drupal.org [mailto:support-bounces at drupal.org] On
Behalf Of Ivan Sergio Borgonovo
Sent: Wednesday, February 06, 2008 9:56 AM
To: support at drupal.org
Subject: Re: [support] FAPI and "returned" page

On Wed, 6 Feb 2008 08:26:37 -0800
"Metzler, David" <metzlerd at evergreen.edu> wrote:

> ---
> Yes this is correct.  Submit and validate fire before any form
> rendering is done.  It's not perfect but it's what is there. Part
> of the rational for doing this is that if you return path from a
> submit handler drupal will redirect to that page.  
> 
> If you want to multiply the contents of two fields you are going to
> do it like this: 
> 
> 1.  IN the submit handler modify the data that your application is
> based on, using session variables or some other permanent data
> store (the database is most common) and alter data. 
> 
> 2.  Reference these structures in the form rendering function to
> display the data.  

[snip]

> function test_form_submit($formid, $form_values)
> {
> 	
> 	$_SESSION['mymodule']['total'] = $form_values['value1'] *
> $form_values['value2'];
>      
> 
> }

OK... at least I know there aren't smarter routes.
A bit painful if you've large forms.

Nothing forbid to catch the $_POST since it is conserved.

Part of FAPI still remain useful, but _validate becomes cosmetic.
It'd be nice to have a _display hook that just takes the same
arguments as _submit and if present directly show some output in
spite of returning drupal_render_form...

I think something can be recycled out of FAPI for my scenario... but
it won't be as elegant as if we had a _display hook.

thanks

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it

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