/**
  * copies back up files up one ...
  * returns true on success, false on failure
  *
  * @param DatabasebackupLog $databaseToRestore
  *
  * @return Boolean
  */
 private function restoreDatabaseBackup(DatabasebackupLog $databaseToRestore)
 {
     if (Permission::check("ADMIN")) {
         Config::inst()->update("DatabasebackupLog", "max_db_copies", Config::inst()->get("DatabasebackupLog", "max_db_copies") + 1);
         //firstly make a backup of the current state ...
         $obj = new DatabasebackupLog();
         $obj->Title = _t("DatabaseBackup.RESTORE_NOTE", "Additional backup before doing a database restore.");
         $obj->write();
         //make sure it still exists ...
         $databaseToRestore = DatabasebackupLog::get()->byID($databaseToRestore->ID);
         if ($databaseToRestore) {
             return $databaseToRestore->restoreDatabaseBackup();
         }
     }
     return false;
 }