Doing some forms development in Drupal. I'm compiling some notes here.
If this is a topic of interest check back once in a while, I'll be adding notes and updates as a go through this particular project.
Development Goals: capture some data from A, pass to B for approval, pass approval to A and C or rejection to A. Confirm the workflow history.
Drupal modules use associative arrays and the form engine generates the HTML. Forms are processed in three phases: validation, submission, and redirection.
Function:
drupal_get_form()
Variables:
$form_id : a string to identify the form
$form : structured array describing the form
$form_state : information about the form, values
$form_state['redirect'] to a Drupal path to redirect the user. The last function to set this property wins. If not set the user is returned to the form.
See #redirect property below...
$_POST['form_id'] : present if form being processed has been submitted with data
Properties:
#submit : can contain an array of functions to process on submit
#redirect : set in $form_state['redirect'] or $form['#redirect']
example: $form['#redirect'] = 'node/1'
Requirements (particularly for your own form module):
.info : found in sites/all/modules/custom/[formname]/[formname.info]
.module : found in sites/all/modules/custom/[formname]/[formname.module]
References:
VanDyk, John K. "Pro Drupal Development, Second Edition"
http://www.apress.com/9781430209898
Sample email code: http://drupal.org/node/197122
VI editor commands: http://www.cs.rit.edu/~cslab/vi.html
