Raid detail: Prefetch pseudo no-response objects; 162 queries -> 18.

drakul/raids/views.py

@@ -4,7 +4,7 @@ from datetime import timedelta
 
 from django.contrib.auth import get_user_model
 from django.contrib.auth.mixins import PermissionRequiredMixin
-from django.db.models import Q, Max
+from django.db.models import Q, Max, prefetch_related_objects
 from django.http import Http404
 from django.urls import reverse, reverse_lazy
 from django.utils import timezone
@@ -88,7 +88,13 @@ class RaidDetailView(SingleObjectMixin, MultiModelFormView):
 
     def get_queryset(self):
         return Raid.objects.prefetch_related(
-            "responses", "responses__character", "comments", "comments__user__main"
+            "responses",
+            "responses__character",
+            "responses__character__user",
+            "responses__character__user__rank",
+            "responses__character__user__main",
+            "comments",
+            "comments__user__main"
         ).all()
 
     def get_form_classes(self):
@@ -138,6 +144,7 @@ class RaidDetailView(SingleObjectMixin, MultiModelFormView):
             .order_by("main__klass")
         pseudo_no_responses = [RaidResponse(character=user.main, status=None)
                                for user in no_response_users]
+        prefetch_related_objects(pseudo_no_responses, "character__user__rank", "character__user__main")
         context["responses"] = list(raid.responses.all()) + pseudo_no_responses
 
         return context