public function getQueryInfo()
 {
     // oryginal query modyfied by hook WantedPages::getQueryInfo
     $query = parent::getQueryInfo();
     // extend the query with "exclude titles" option
     $excludes = array();
     foreach ($this->excludetitles as $title) {
         $excludes[] = " pl_title NOT LIKE '%" . trim($title) . "%' ";
     }
     if (is_array($excludes) && count($excludes) > 0) {
         $exclude = implode(" AND ", $excludes);
         $query['conds'][] = " (" . $exclude . ") ";
     }
     return $query;
 }