Django Forms not rendering ModelChoiceField's query set

Question

I have the following ModelForm:

class AttendanceForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        operation_id = kwargs['operation_id']
        del kwargs['operation_id']
        super(AttendanceForm, self).__init__(*args, **kwargs)
        self.fields['deployment'].query_set = \
            Deployment.objects.filter(operation__id=operation_id)

    class Meta:
        model = Attendance

When I manually create the form in the shell (using manage.py shell)

form = AttendanceForm(operation_id=1)
form.fields['deployment'].query_set

it returns the correct query_set, but when I call

form.as_p()

i get extra entries that weren't in the query_set? Does django cache the html output somehow? I looked through the source, but couldn't find any caching. What am I doing wrong?

Answer 1

The parameter is queryset, not query_set. See the documentation.