Drupal form redirect to fragment - php

Question

I have a poll block in the bottom of my front page, and I'd like to redirect the poll form to the block after submit. I use Drupal 6.x.
As usual, I use form_alter for this.
function MYMODULE_form_alter(&$form, &$form_state, $form_id) {
switch ($form_id) {
case 'poll_view_voting':
// not worked also
//$form['#redirect'] = url('', array('fragment' => 'poll-block'));
$form['#redirect'] = '#poll-block';
break;
}
}
After submit, I'm redirected to /%2523poll_block (this is a 404 page).
In a preprocess_page function I wrote the $_REQUEST['q'] using drupal_set_message(), and it shows the good redirect (#poll-block), but the URL in browser is encoded.
Can anybody help me?
Thanks in advance.

Answer 1

As per FAPI reference, you can enter an array to be passed to drupal_goto(). Ultimately this goes through url() so use your url() function's ninja tricks here.
Basically you can have 3 types of data here.
a string, Boolean FALSE, or an array.
If it's a string, it will redirect to the correct location after a url encode (what happens in your case). FALSE will disable redirects, and if you enter an array, it will be passed to drupal_goto().
So for your case, it would be:
function MYMODULE_form_alter(&$form, &$form_state, $form_id) {
switch ($form_id) {
case 'poll_view_voting':
// not worked also
//$form['#redirect'] = url('', array('fragment' => 'poll-block'));
//$form['#redirect'] = array('node/54', array('page' => '2'), 'poll-block'); // No "#" in fragment. This will work.
$form['#redirect'] = array('', array(), 'poll-block');
break;
}
}
However, drupal_goto() usually happens with absolute URL so probably your effort would be useless unless you use javascript.