function getPrevRecordID($conditions = [])
    {
        $conditions['order'] = 'id@A';
        $conditions['limit'] = 1;
        $conditions[]        = 'id lt '.$this->getRecordID();
        $prev                = $this->getColumnsFromFlexibee(['id'], $conditions);
        return (is_array($prev) && array_key_exists(0, $prev) && array_key_exists('id',
                $prev[0])) ? intval($prev[0]['id']) : null;
    }