public static function fix_duplicate_services()
 {
     global $wpdb;
     $services = self::find_duplicate_services();
     if (!is_array($services) || empty($services)) {
         Repair::add_to_repair_log(__('Services did not need repair', 'podlove'));
         return;
     }
     foreach ($services as $service) {
         # update contributor services
         $sql = "UPDATE " . ContributorService::table_name() . " SET service_id = " . $service['id'] . " WHERE service_id IN (\n\t\t\t\tSELECT id FROM " . Service::table_name() . " WHERE `type` = \"" . $service['type'] . "\"\n\t\t\t)";
         $wpdb->query($sql);
         # update show services
         $sql = "UPDATE " . Model\ShowService::table_name() . " SET service_id = " . $service['id'] . " WHERE service_id IN (\n\t\t\t\tSELECT id FROM " . Service::table_name() . " WHERE `type` = \"" . $service['type'] . "\"\n\t\t\t)";
         $wpdb->query($sql);
         # delete obsolete services
         $sql = "DELETE FROM " . Service::table_name() . " WHERE id != " . $service['id'] . " AND `type` = \"" . $service['type'] . "\"";
         $wpdb->query($sql);
     }
     Repair::add_to_repair_log(sprintf(__('Consolidated duplicate services (%s)', 'podlove'), implode(', ', array_map(function ($s) {
         return $s['type'];
     }, $services))));
 }