subscriptions_forum.module

<?php

/**
 * Implements hook_block_info().
 *
 * Tell Drupal about the Subscriptions Interface block.
 *
 * @ingroup hooks
 */
function subscriptions_forum_block_info() {
  $blocks[0]['info'] = t('Forum Subscriptions');
  return $blocks;
}

/**
 * Implements hook_block_view().
 *
 * Define the Subscriptions Interface block for node pages (depending on the Display Settings).
 *
 * @param int $delta
 *
 * @return array|null
 *
 * @ingroup hooks
 */
function subscriptions_forum_block_view($delta = 0) {
  global $user;
  $arg0 = arg(0);
  $arg1 = arg(1);

  $action = subscriptions_get_subscription($user->uid, 'node', 'tid', $arg1) ? 'del':'add';
  $title = $action == 'del' ? t('Unsubscribe from Forum') : t('Subscribe to Forum');
  $path = 'subscriptions/' . $action . '/taxa/' . $arg1;

  if (in_array('taxa', array_keys(subscriptions_types())) && ($arg0 == 'forum' && is_numeric($arg1))) {
    return array(
      'subject' => $title,
      'content' => menu_execute_active_handler($path, FALSE),
    );
  }
  return NULL;
}

/**
 * Implementation of hook_form_FORM_ID_alter()
 */
function subscriptions_forum_form_subscriptions_add_form_alter(&$form, &$form_state) {
  // TODO: redirection isn't working for some reason.
  $form_state['redirect'] = $_GET['q'];
}