Django Admin: Getting a QuerySet filtered accordin

Question

In the Django admin, the user can set filters which limit the rows displayed in the change list. How can I get a QuerySet instance with filters set as defined by the query string? For instance, if I pass ?start_date_gte=2009-11-06, the Django admin will apply a qs.filter(start_date__gte...) somewhere. How can I access such a QuerySet?

I need this since obviously I don't want to rewrite the code that takes these GET parameters and filter()s a QuerySet accordingly.

Answer 1

Take a look at django-filter.

Answer 2

Looks interesting. However, I was talking about using that QuerySet within the Admin. Found the answer, see below:

class MyAdmin(admin.ModelAdmin):
  def changelist_view(self, request, extra_context=None):
    from django.contrib.admin.views.main import ChangeList
    cl = ChangeList(request, self.model, self.list_display, self.list_display_links, self.list_filter, self.date_hierarchy, self.search_fields, self.list_select_related, self.list_per_page, self.list_editable, self)
    # getting query set with same filters like current change list
    filtered_query_set = cl.get_query_set()