No easy way to access the filtered queryset from admin.SimpleListFilter

[Tomas Babej]

I have a simple goal - I want to build a admin.SimpleListFilter, which offers in the lookups method only those choices which are relevant to the current user selection.

The lookups() method gets passed the ModelAdmin instance via model_admin argument, however, calling

queryset = model_admin.get_queryset()

will return only the unfiltered queryset. There is no easy way how to get the filtered queryset, since that is defined in the ChangeView class, one is only left to duplicate much of the logic of that class to get the filtered queryset.

[Tim Graham]

Absent a specific proposal for how to make this possible, I don't see much value in accepting the ticket. Please reopen if you have ideas to share or want to try implementing something.