Doctrine\DBAL\Query\QueryBuilder::getSQLForSelect PHP Method

    private function getSQLForSelect()
    {
        $query = 'SELECT ' . implode(', ', $this->sqlParts['select']);
        $query .= ($this->sqlParts['from'] ? ' FROM ' . implode(', ', $this->getFromClauses()) : '') . ($this->sqlParts['where'] !== null ? ' WHERE ' . (string) $this->sqlParts['where'] : '') . ($this->sqlParts['groupBy'] ? ' GROUP BY ' . implode(', ', $this->sqlParts['groupBy']) : '') . ($this->sqlParts['having'] !== null ? ' HAVING ' . (string) $this->sqlParts['having'] : '') . ($this->sqlParts['orderBy'] ? ' ORDER BY ' . implode(', ', $this->sqlParts['orderBy']) : '');
        if ($this->isLimitQuery()) {
            return $this->connection->getDatabasePlatform()->modifyLimitQuery($query, $this->maxResults, $this->firstResult);
        }
        return $query;
    }