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<?php

/* Unblock user in bulk operations
 * Implements hook_action_info().
*/
function unblock_user_action_info() {
    return array(
    'unblock_user_unblock_action' => array(
    'label' => t('Unblock the user'),
    'type' => 'user',
    'configurable' => FALSE,
    'triggers' => array('any'),
    ),
    );
}

/* Unblocks a user, defaulting to the current user.
 * @ingroup actions
*/
function unblock_user_unblock_action(&$entity, $context = array()) {
      // First priority: If there is a $entity->uid, unblock that user.
      // This is most likely a user object or the author if a node or comment.
      if (isset($entity->uid)) {
      $uid = $entity->uid;
      }
      // Otherwise get user ID from the context.
      elseif (isset($context['uid'])) {
      $uid = $context['uid'];
      }
      $account = user_load($uid);
      $account = user_save($account, array('status' => 1));
      //Log the change using watchdog.
      watchdog('action', 'Unblocked user %name.', array('%name' => $account->name));
}