nowa funckcja zmiana kolejnosci produktów

app.py

@@ -123,6 +123,7 @@ class Item(db.Model):
     note = db.Column(db.Text, nullable=True)
     not_purchased = db.Column(db.Boolean, default=False)
     not_purchased_reason = db.Column(db.Text, nullable=True)
+    position = db.Column(db.Integer, default=0)
 
 
 class SuggestedProduct(db.Model):
@@ -211,7 +212,7 @@ def allowed_file(filename):
 
 def get_list_details(list_id):
     shopping_list = ShoppingList.query.get_or_404(list_id)
-    items = Item.query.filter_by(list_id=list_id).all()
+    items = Item.query.filter_by(list_id=list_id).order_by(Item.position.asc()).all()
     receipt_pattern = f"list_{list_id}"
     all_files = os.listdir(app.config["UPLOAD_FOLDER"])
     receipt_files = [f for f in all_files if receipt_pattern in f]
@@ -220,6 +221,7 @@ def get_list_details(list_id):
     return shopping_list, items, receipt_files, expenses, total_expense
 
 
+
 def generate_share_token(length=8):
     """Generuje token do udostępniania. Parametr `length` to liczba znaków (domyślnie 4)."""
     return secrets.token_hex(length // 2)
@@ -265,7 +267,7 @@ def admin_required(f):
 
 
 def get_progress(list_id):
-    items = Item.query.filter_by(list_id=list_id).all()
+    items = Item.query.filter_by(list_id=list_id).order_by(Item.position.asc()).all()
     total_count = len(items)
     purchased_count = len([i for i in items if i.purchased])
     percent = (purchased_count / total_count * 100) if total_count > 0 else 0
@@ -980,6 +982,27 @@ def uploaded_file(filename):
     return response
 
 
+@app.route('/reorder_items', methods=['POST'])
+@login_required
+def reorder_items():
+    data = request.get_json()
+    list_id = data.get('list_id')
+    order = data.get('order')
+
+    for index, item_id in enumerate(order):
+        item = db.session.get(Item, item_id)
+        if item and item.list_id == list_id:
+            item.position = index
+    db.session.commit()
+
+    socketio.emit("items_reordered", {
+        "list_id": list_id,
+        "order": order
+    }, to=str(list_id))
+
+    return jsonify(success=True)
+
+
 @app.route("/admin")
 @login_required
 @admin_required
@@ -1737,7 +1760,6 @@ def handle_add_item(data):
     except:
         quantity = 1
 
-    # Szukamy istniejącego itemu w tej liście (ignorując wielkość liter)
     existing_item = Item.query.filter(
         Item.list_id == list_id,
         func.lower(Item.name) == name.lower(),
@@ -1758,10 +1780,15 @@ def handle_add_item(data):
             to=str(list_id),
         )
     else:
+        max_position = db.session.query(func.max(Item.position)).filter_by(list_id=list_id).scalar()
+        if max_position is None:
+            max_position = 0
+
         new_item = Item(
             list_id=list_id,
             name=name,
             quantity=quantity,
+            position=max_position + 1,
             added_by=current_user.id if current_user.is_authenticated else None,
         )
         db.session.add(new_item)
@@ -1788,7 +1815,6 @@ def handle_add_item(data):
             include_self=True,
         )
 
-    # Aktualizacja postępu
     purchased_count, total_count, percent = get_progress(list_id)
 
     emit(
@@ -1802,6 +1828,7 @@ def handle_add_item(data):
     )
 
 
+
 @socketio.on("check_item")
 def handle_check_item(data):
     # item = Item.query.get(data["item_id"])
@@ -1855,7 +1882,7 @@ def handle_uncheck_item(data):
 @socketio.on("request_full_list")
 def handle_request_full_list(data):
     list_id = data["list_id"]
-    items = Item.query.filter_by(list_id=list_id).all()
+    items = Item.query.filter_by(list_id=list_id).order_by(Item.position.asc()).all()
 
     items_data = []
     for item in items: