Formset Deletion Issue

There appears to be a misunderstanding in how you're handling deleted objects in formsets. The issue is likely related to how you're accessing the deleted objects.

The Problem

In Django formsets, deleted_objects is not a standard attribute. When working with formsets that have deletion capabilities, you should:

1. Check if the formset is valid
2. Save the formset with the commit=True parameter (which is the default)

Correct Approach

Here's the proper way to handle deletions in a formset:

PYTHONCopied
if formset.is_valid():
    formset.save()  # This automatically handles deletions

If you need to manually process deletions, you should iterate through the forms and check the DELETE field:

PYTHONCopied
if formset.is_valid():
    for form in formset:
        if form.cleaned_data.get('DELETE'):
            if form.instance.pk:  # Make sure it's an existing instance
                form.instance.delete()
        elif form.has_changed():  # Save non-deleted forms that have changed
            form.save()

Additional Considerations

1. Make sure you've set can_delete=True when creating your formset:

   PYTHONCopied
   MyFormSet = formset_factory(MyForm, can_delete=True)

2. Ensure your form template includes the DELETE field:

   HTMLCopied
   {{ form.DELETE }}

3. Check if you're using transactions that might be rolling back your changes.

4. Verify that the formset is valid before attempting to process deletions.