function comment_form_submit

7 comment.module comment_form_submit($form, &$form_state)
4.7 comment.module comment_form_submit($form_id, $form_values)
5 comment.module comment_form_submit($form_id, $form_values)
6 comment.module comment_form_submit($form, &$form_state)

Process comment form submissions; prepare the comment, store it, and set a redirection target.

File

modules/comment/comment.module, line 1539
Enables users to comment on published content.

Code

function comment_form_submit($form, &$form_state) {
  _comment_form_submit($form_state['values']);
  if ($cid = comment_save($form_state['values'])) {
    $node = node_load($form_state['values']['nid']);
    // Add 1 to existing $node->comment count to include new comment being added.
    $comment_count = $node->comment_count + 1;
    $page = comment_new_page_count($comment_count, 1, $node);
    $form_state['redirect'] = array('node/' . $node->nid, $page, "comment-$cid");
    return;
  }
}

Comments

Posted by Albert.Liu on

how to change redirection

Posted by vkareh on

To change redirection:

<?php
function HOOK_form_comment_form_alter(&$form, &$form_state) {
  $node = node_load($form['nid']['#value']);
  if ($node->type == 'MY_NODE_TYPE' && $node->comment) {
    $form['#redirect'] = array('NEW_REDIRECT_PATH');
  }
}
?>

Posted by the0 on

... for some reason, redirecting was more difficult for me than just the above code. maybe that's because i'm not too familiar with drupal yet. here's what i did for all those who are still searching for a quick but working option.

(info:
i'm doing this on drupal 6. actually i want to change the redirect value to FALSE so that the user is not redirected after comment submission because most of my nodes' functionality - toggle etc. - happens on the frontpage. at the moment, it seems, setting the value to FALSE makes comment_form fall back on $form['#action'], which is not the desired result, but i'm still working on that.)

the problem with $form['#redirect'] and using hook_form_alter is that comment_form doesn't seem to have that value. at least, there is no such value if you output all form values.

(for more details on how to do that, have a look at http://www.lullabot.com/articles/modifying-forms-drupal-5-and-6 )

instead, apparently comment_form calls comment_form_submit through the submit value, where the latter function contains the relevant redirect value. so, the key idea is to create a custom module, which is such that it contains a custom comment_form_submit function and, additionally, it changes the submit value of comment_form by means of hook_form_alter to call that custom comment_form_submit function. i got this idea from john fiala's reply to the following question:

http://stackoverflow.com/questions/4329160/how-do-you-override-a-functio...

now, to the code (note that the custom submit function and the standard one are identical except for the redirect value):

<?php
function YOURCUSTOMMODULENAME_comment_form_submit($form, &$form_state) {
_comment_form_submit($form_state['values']);
  if ($cid = comment_save($form_state['values'])) {
    $node = node_load($form_state['values']['nid']);
    // Add 1 to existing $node->comment count to include new comment being added.
    $comment_count = $node->comment_count + 1;
    $page = comment_new_page_count($comment_count, 1, $node);
    $form_state['redirect'] = YOURREDIRECTIONPATH;
    return;
  }
}

function

YOURCUSTOMMODULENAME_form_alter(&$form, $form_state, $form_id) {
     switch ($form_id) {
      // This is our form ID.
      case 'comment_form':
        $form['#submit'][] = 'YOURCUSTOMMODULENAME_comment_form_submit';
        break;
    }
}
?>

note that the closing tag "?>" should not appear in the custom module. it's just inserted here for layout convenience.