getConnection();
// QTY IN SUBQUERY per evitare raddoppi dovuti alle linee
$sql = "
SELECT
m.id,
m.nomeuscita,
IFNULL(q.qty_totale, 0) AS qty_totale,
GROUP_CONCAT(DISTINCT pl.name SEPARATOR ', ') AS linee
FROM mescole m
LEFT JOIN (
SELECT idmescola, SUM(qty) AS qty_totale
FROM mescole_supplier_lots
GROUP BY idmescola
) q ON q.idmescola = m.id
LEFT JOIN mescole_lines ml ON m.id = ml.idmescola
LEFT JOIN production_lines pl ON ml.idlinea = pl.id
GROUP BY m.id
ORDER BY m.id DESC
";
$stmt = $pdo->query($sql);
if ($stmt->rowCount() === 0) {
// DataTables-friendly: 5 TD reali
echo "