Fix Empty Queryset for Unbound Filter Form

django_filters/views.py

@@ -79,6 +79,8 @@ def get(self, request, *args, **kwargs):
 
         if self.filterset.is_valid() or not self.get_strict():
             self.object_list = self.filterset.qs
+        elif not self.filterset.is_bound:
+            self.object_list = self.get_queryset()
         else:
             self.object_list = self.filterset.queryset.none()
 

tests/templates/tests/book_filter.html

@@ -1,5 +1,5 @@
 {{ filter.form }}
 
-{% for obj in filter.qs %}
+{% for obj in object_list %}
     {{ obj }}
 {% endfor %}

tests/test_views.py

@@ -40,7 +40,7 @@ def test_view_with_filterset_not_model(self):
         factory = RequestFactory()
         request = factory.get(self.base_url)
         filterset = filterset_factory(Book)
-        view = FilterView.as_view(filterset_class=filterset)
+        view = FilterView.as_view(filterset_class=filterset, queryset=Book.objects.all())
         response = view(request)
         self.assertEqual(response.status_code, 200)
         for b in ['Ender's Game', 'Rainbow Six', 'Snowcrash']:
@@ -123,6 +123,19 @@ class View(FilterView):
         self.assertEqual(message, expected)
         self.assertEqual(len(recorded), 0)
 
+    def test_view_with_unbound_filter_form_returns_initial_queryset(self):
+        factory = RequestFactory()
+        request = factory.get(self.base_url)
+
+        queryset = Book.objects.filter(title='Snowcrash')
+        view = FilterView.as_view(model=Book, queryset=queryset)
+
+        response = view(request)
+        titles = [o.title for o in response.context_data['object_list']]
+
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(titles, ['Snowcrash'])
+
 
 class GenericFunctionalViewTests(GenericViewTestCase):
     base_url = '/books-legacy/'