I've created a form where users will enter a date range. Once submitted it then needs to return a list from my database of people all those whose birthdays are within that date range. I'm fairly new to Django and I've tried but do not understand how to pass my "start_date & end_date" as kwargs from my form to ListView.

views.py:

class BirthdaysRangeFormView(FormView):
    template_name = 'snippets/date_selection_form.html'
    form_class = datefilterform

    def get_form_kwargs(self):
        kwargs = super(BirthdaysRangeFormView, self).get_form_kwargs()
        kwargs ['request'] = self.request 
        return kwargs

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['title'] = "Date Selection"
        context['header'] = "Please select date range"
        return context

    def form_valid(self, form):
        self.start_date = (form.cleaned_data['start_date'], People.next_birthday)
        self.end_date = (form.cleaned_data['end_date'], People.next_birthday)
        return self.redirect_to_results()

    def redirect_to_results(self):
        self.success_url = "dates:birthdays"
        return redirect(
            self.get_success_url(),
        )


class BirthdaysListView(BirthdaysRangeFormView, ListView):
    template_name = 'dates/birthdays.html',
    context_object_name = "person"
    person = True
    # queryset = People.objects.order_by('next_birthday')


    def get_queryset(self):
        test = ''

forms.py:

class datefilterform(forms.Form):
    model = People



    start_date = forms.DateField(
        input_formats=['%d/%m/%Y'],
        widget=DateTimePicker(
            options={"format": "DD/MM/YYYY", "pickTime": False})
    )

    end_date = forms.DateField(
        input_formats=['%d/%m/%Y'],
        widget=DateTimePicker(
            options={"format": "DD/MM/YYYY", "pickTime": False})
    )

    People.next_birthday = start_date
    People.next_birthday = end_date

    def __init__(self, *args, **kwargs):
        self.request = kwargs.pop('request')
        super(datefilterform, self).__init__(*args, **kwargs)

        self.helper = FormHelper()
        self.helper.form_id = 'main_form'
        self.helper.form_class ='form-horizontal'
        self.helper.label_class = 'col-lg-3'
        self.helper.field_class = 'col-lg-8'

        self.helper.layout = Layout(

            'start_date',
            'end_date',
            FormActions(
                Submit('submit', 'Submit'),
                Button('cancel', 'Cancel', css_class='cancel')
            )
        )

    def clean(self):

        cleaned_data = super().clean()
        start_date = cleaned_data.get("start_date")
        end_date = cleaned_data.get("end_date")

        if not check_end_date(start_date, end_date):
            raise forms.ValidationError(
                "Incorrect Dates entered, End date must be after start date"
            )

I've done simple ListViews before but I don't understand how to use "request" in class based views.