Stay on form after adding things

boxes/views.py

@@ -62,6 +62,8 @@ def add_things(request, box_id):
     """Add multiple things to a box at once."""
     box = get_object_or_404(Box, pk=box_id)
     
+    success_message = None
+    
     if request.method == 'POST':
         formset = ThingFormSet(request.POST)
         
@@ -73,17 +75,12 @@ def add_things(request, box_id):
                     thing.box = box
                     thing.save()
                     created_count += 1
-            print(f'DEBUG: created_count={created_count}')
             if created_count > 0:
-                print(f'DEBUG: Redirecting to box_detail with box_id={box_id}')
-                return redirect('box_detail', box_id=box_id)
-            else:
-                print('DEBUG: No valid data submitted')
-    
-    else:
-        formset = ThingFormSet()
+                success_message = f'Added {created_count} thing{"s" if created_count > 1 else ""} successfully.'
+            formset = ThingFormSet()
     
     return render(request, 'boxes/add_things.html', {
         'box': box,
         'formset': formset,
+        'success_message': success_message,
     })