Changes so the edeting function can also adeit all the Codes and the entire mamunt of an itemgroup

Web/modules/database/items.py

@@ -20,6 +20,7 @@ Collection Structure:
 """
 from bson.objectid import ObjectId
 from bson.errors import InvalidId
+import uuid
 import datetime
 import Web.modules.database.settings as cfg
 from Web.modules.database.settings import MongoClient
@@ -1147,4 +1148,77 @@ def get_current_status(item_id, decrypt=True):
         return None
     except Exception as e:
         print(f"Error retrieving current status for item {item_id}: {e}")
-        return None
+        return None
+
+def sync_group_codes(primary_obj_id, base_code, individual_codes_list):
+    """
+    Synchronisiert die Barcodes einer Gruppe beim Bearbeiten (abwärtskompatibel).
+    Trennt sauber zwischen 'Basis-Code' und 'weiteren Einzelcodes'.
+    """
+    if not base_code:
+        return False
+
+    # Alle Codes zusammenführen und Duplikate filtern
+    all_target_codes = [base_code]
+    for c in individual_codes_list:
+        if c and c not in all_target_codes:
+            all_target_codes.append(c)
+
+    try:
+        client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
+        db = client[cfg.MONGODB_DB]
+        items = db['items']
+
+        primary_item = items.find_one({'_id': ObjectId(primary_obj_id)})
+        if not primary_item:
+            client.close()
+            return False
+
+        group_id = primary_item.get('SeriesGroupId')
+
+        # 1. Wenn mehrere Codes existieren, aber noch keine Gruppe: Gruppe erstellen
+        if not group_id and len(all_target_codes) > 1:
+            group_id = str(uuid.uuid4())
+            items.update_one({'_id': primary_item['_id']}, {'$set': {'SeriesGroupId': group_id}})
+            primary_item['SeriesGroupId'] = group_id
+
+        # 2. Wenn es weiterhin keine Gruppe gibt (nur 1 Code), updaten und beenden
+        if not group_id:
+            items.update_one({'_id': primary_item['_id']}, {'$set': {'Code_4': base_code}})
+            client.close()
+            return True
+
+        # 3. Bestand abgleichen
+        existing_items = list(items.find({'SeriesGroupId': group_id}))
+        existing_codes_map = {item.get('Code_4'): item['_id'] for item in existing_items if item.get('Code_4')}
+        existing_codes_set = set(existing_codes_map.keys())
+        target_codes_set = set(all_target_codes)
+
+        codes_to_add = target_codes_set - existing_codes_set
+        codes_to_remove = existing_codes_set - target_codes_set
+
+        # 4. Entfernte Codes löschen (Haupt-Item wird niemals gelöscht)
+        for code in codes_to_remove:
+            item_id_to_delete = existing_codes_map.get(code)
+            if item_id_to_delete and item_id_to_delete != primary_item['_id']:
+                items.delete_one({'_id': item_id_to_delete})
+
+        # 5. Neue Items für neu eingetragene Codes als Klone erstellen
+        for code in codes_to_add:
+            new_item = primary_item.copy()
+            if '_id' in new_item:
+                del new_item['_id']
+            new_item['Code_4'] = code
+            new_item['is_grouped_sub_item'] = True
+            new_item['parent_item_id'] = str(primary_item['_id'])
+            items.insert_one(new_item)
+
+        # 6. Sicherstellen, dass das Haupt-Item den Basis-Code behält
+        if primary_item.get('Code_4') != base_code:
+            items.update_one({'_id': primary_item['_id']}, {'$set': {'Code_4': base_code}})
+
+        client.close()
+        return True
+    except Exception as e:
+        print(f"Error syncing group codes: {e}")
+        return False