def get_form_instance_from_request(request):
    ' Get the form class from the request. '
    form_id = request.POST.get('form_id')
    if (form_id and form_id.isdigit()):
        try:
            return Form.objects.get(pk=int(form_id))
        except Form.DoesNotExist:
            pass
    return None
Get the form class from the request.
def get_form_instance_from_request(request):
    '  '
    form_id = request.POST.get('form_id')
    if (form_id and form_id.isdigit()):
        try:
            return Form.objects.get(pk=int(form_id))
        except Form.DoesNotExist:
            pass
    return None