How to add fields or exclude fields in the view?

[Thutmose3]

Hi there,

Is there a way to customize what filters are shown on the view level?

For example, i would like to show a filter only if there are more than 1 of Foo in the database.

Something like this

class IncomingInvoices(SingleTableMixin, FilterView):
    model = IncomingInvoice
    filterset_class = IncomingInvoiceFilter

    def get_filterset_kwargs(self, filterset_class):
        kwargs = super().get_filterset_kwargs(filterset_class)
        businesses = Business.objects.all()
        if businesses.count() > 1:
            kwargs["fields"].append("business")
        return kwargs

But i cant seem to do this, i have tried lots of ways, but the problem is that the Meta class in filterset is not updateable at all it seems

The only dirty way i got it to work is like this:

class IncomingInvoiceFilter(django_filters.FilterSet):
    book_date = DateFromToRangeFilter(widget=RangeWidget(attrs={"class": "datepicker", "type": "date"}))

    class Meta:
        model = IncomingInvoice
        fields = ["book_date", "company"]

        if "makemigrations" not in sys.argv and "migrate" not in sys.argv and "manage.py" not in sys.argv:
            businesses = Business.objects.all()
            if businesses.count() > 1:
                fields.append("business")