usuniecie zbednego kodu i poprawki

app.py

@@ -2854,15 +2854,18 @@ def list_products():
             unique_items.append(item)
             seen_names.add(key)
 
-    usage_counts = dict(
-        db.session.query(
-            func.lower(Item.name),
-            func.coalesce(func.sum(Item.quantity), 0)
+    stmt = (
+        select(
+            func.lower(func.trim(Item.name)).label("name_lower"),
+            func.coalesce(func.sum(Item.quantity), 0).label("qty_sum"),
         )
-        .group_by(func.lower(Item.name))
-        .all()
+        .where(Item.name.isnot(None))
+        .group_by(func.lower(func.trim(Item.name)))
     )
 
+    rows = db.session.execute(stmt).all()
+    usage_counts = {name_lower: qty_sum for name_lower, qty_sum in rows}
+
     total_items = len(unique_items)
     total_pages = (total_items + per_page - 1) // per_page
     start = (page - 1) * per_page

templates/admin/list_products.html

@@ -36,7 +36,7 @@
               -
               {% endif %}
             </td>
-            <td>{{ usage_counts.get(item.name.lower(), 0) }}</td>
+            <td><span class="badge bg-secondary">{{ usage_counts.get(item.name.lower(), 0) }}</span></td>
             <td>
               {% set suggestion = suggestions_dict.get(item.name.lower()) %}
               {% if suggestion %}