// warn_category_locked
// Checks if the current category is currently locked,
// and notify it if it is the case.
//
// no variables, no return
//
add_event_handler('loc_end_section_init', 'warn_category_locked');

function warn_category_locked() {
  global $page, $template;

  if (isset($page['category']['id'])) {
    $locked_cats = array();
    $m = array();
    $m[0] = 'Catégorie verrouillée';
  
    $query = pwg_query("
      SELECT id
      FROM ".CATEGORIES_TABLE."
      WHERE visible = 'false';
    ");
    while ($row = pwg_db_fetch_assoc($query)) $locked_cats[] = $row['id'];
  
    if (in_array($page['category']['id'], $locked_cats)) {
      if (isset($template->smarty->_tpl_vars['header_msgs']))
       $template->smarty->_tpl_vars['header_msgs'][] = $m[0];
      else
       $template->assign('header_msgs', $m);
    }
    unset($locked_cats, $m);
  }
}