Leere Chargenfelder vor dem Speichern bestätigen

modules/erp/lager/api/lot.php

@@ -68,10 +68,10 @@ try {
     if ($action === 'prepare_lot') {
         $productId = (int) ($data['productId'] ?? 0);
         $lotNumber = trim((string) ($data['lotNumber'] ?? ''));
-        if ($lotNumber === '') {
+        $lotId = (int) ($data['lotId'] ?? 0);
+        if ($lotNumber === '' && $lotId <= 0) {
             throw new InvalidArgumentException('Naurua-Chargennummer fehlt');
         }
-        $lotId = (int) ($data['lotId'] ?? 0);
         if ($lotId > 0) {
             $lotStmt = $pdo->prepare(
                 "SELECT id
@@ -104,7 +104,8 @@ try {
             0.0,
             0.0,
             $lotNumber,
-            $targetQty
+            $targetQty,
+            $lotId > 0 && $lotNumber === ''
         );
         json_response(200, ['ok' => true, 'lot' => $preparedLot, 'balance' => get_stock_lot_balance($pdo, $lotId)]);
     }
@@ -115,5 +116,5 @@ try {
 } catch (InvalidArgumentException $error) {
     json_response(422, ['ok' => false, 'error' => $error->getMessage()]);
 } catch (Throwable $error) {
-    json_response(500, ['ok' => false, 'error' => 'Internal server error: ' . $error->getMessage()]);
+    json_response(500, ['ok' => false, 'error' => 'Interner Serverfehler']);
 }