Re: [development] Form adding query parameters

1 Oct 2010

      Hi Nancy,

The actual redirection of forms is handled by drupal_redirect_form:
http://api.drupal.org/api/function/drupal_redirect_form/6

Which looking at the code, passes the $form_state['redirect'] to drupal_goto.

drupal_goto has a second argument for the query string, so I think the
end of your form submit function may want to look something like:

drupal_set_message("going to $r");
$form_state['redirect'] = array($_GET['q'], array('query' => $r));
drupal_set_message(print_r($_SESSION, true));

Hope that helps!

Regards
Steven Jones
ComputerMinds ltd - Perfect Drupal Websites

Phone : 024 7666 7277
Mobile : 07702 131 576
Twitter : darthsteven
http://www.computerminds.co.uk

On 30 September 2010 20:34, nan wich <nan_wich@bellsouth.net> wrote:
...
I have a function that is working fine with query parameters to filter the
data, but the customer wants a form to enter the date selections. The form
is no problem. But just to make  it easier for me, I want the form to set
the query parameters and return to the orignal function (menu item) so I
don't have to re-code a lot.
function stats_form_submit($form, &$form_state) {
  $start = implode('-', $form_state['values']['start_date']);
  $end = implode('-', $form_state['values']['end_date']);
  $g = $_GET;
  unset($g['q']);
  $g['start'] = $start;
  $g['end'] = $end;
  $r = '';
  $sep = '';
  foreach ($g as $key => $value) {
    $r .= "$sep$key=$value";
    $sep = '&';
  }
  drupal_set_message("going to $r");
  $form_state['redirect'] = url($_GET['q'], array('query' => $r));
  drupal_set_message(print_r($_SESSION, true));
}
When I do this several weird things happen. First, there is an extra slash
in the URL; i.e. instead of "stats/6?end=8-31-2010", I get
"/stats/6?end=8-31-2010" (of course with the usual garbagy encoding). I
don't know if that is the reason, but te second problem is that the tid (6
in this example) passed from the menu now includes the query string, making
it fail the numeric test and not setting $_GET['end'].
Is there a better, safer way to return the submitted form data as a query
string?
Nancy
Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King,
Jr.