function getOneRecord()
 {
     $record = new lmbMysqliRecord();
     $queryId = $this->connection->execute($this->getSQL());
     $values = Mysqli_fetch_assoc($queryId);
     $record->import($values);
     Mysqli_free_result($queryId);
     if (is_array($values)) {
         return $record;
     }
 }
 function at($pos)
 {
     $query = $this->query;
     if (is_array($this->sort_params)) {
         $query .= ' ORDER BY ';
         foreach ($this->sort_params as $field => $order) {
             $query .= $this->connection->quoteIdentifier($field) . " {$order},";
         }
         $query = rtrim($query, ',');
     }
     $queryId = $this->connection->execute($query . " LIMIT {$pos}, 1");
     $res = Mysqli_fetch_assoc($queryId);
     Mysqli_free_result($queryId);
     if ($res) {
         $record = new lmbMysqliRecord();
         $record->import($res);
         return $record;
     }
 }