test updating view

generic/views.py

@@ -2816,16 +2816,22 @@ class ExamViews(View, LoginRequiredMixin):
 
         if self.app_name in ("physics", "sbas", "longs", "shorts"):
             cached_scores = False
-            questions = exam.get_questions()
+            questions_qs = exam.get_questions()
         else:
-            questions = exam.get_questions().prefetch_related("answers")
+            questions_qs = exam.get_questions().prefetch_related("answers")
 
-        # We could prefect the UserAnswers.answers here (if we didn't cache them)
-        cid_user_answers = self.UserAnswer.objects.select_related("question").filter(
-            question__in=questions, exam__id=pk
+        # Materialize questions into a list so we can index and build a question->index map
+        questions = list(questions_qs)
+        question_index_map = {q: i for i, q in enumerate(questions)}
+
+        # We could prefetch the UserAnswers.answers here (if we didn't cache them)
+        # Also select_related the user to avoid per-answer user lookups in the loop
+        cid_user_answers = (
+            self.UserAnswer.objects.select_related("question", "user")
+            .filter(question__in=questions, exam__id=pk)
         )
 
-        question_number = questions.count()
+        question_number = len(questions)
 
         cids = set()
 
@@ -2869,7 +2875,9 @@ class ExamViews(View, LoginRequiredMixin):
 
             answer_score = s.get_answer_score()
             if answer_score == "unmarked":
-                index = exam.get_question_index(q)
+                # Use precomputed map to avoid repeated scanning/indexing of questions
+                index = question_index_map.get(q)
+                if index is not None:
                     unmarked.add(index)
             # user_answers[cid].append(ans)
             user_answers_marks[cid].append(answer_score)