How to make filter - "list_filter" in django admin by method, not model field?

Question

Django

Now in list_filter" you can do side filtering only by the model field by the method, you can't do that.

Answer 1

No. At a minimum, you need to create a class that inherits from SimpleListFilter and implement several methods: lookups and queryset.
Everything is described in detail in the documentation - https://docs.djangoproject.com/en/2.2/ref/contrib/...