perf: /contest/预先查询question__choice_set

这样初次访问`/contest/`时可以减少19次SQL（31 → 12）。
BITNP · Aug 25, 2024 · 389c0e5 · 389c0e5
1 parent 8f654dd
commit 389c0e5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/contest/quiz/views.py b/contest/quiz/views.py
@@ -232,7 +232,7 @@ def contest(request: AuthenticatedHttpRequest) -> HttpResponse:
         {
             "draft_response": draft_response,
             # 为渲染模板预先从数据库查询相关内容
-            "answer_set": draft_response.answer_set.select_related("question", "choice"),
+            "answer_set": draft_response.answer_set.select_related("question").prefetch_related('question__choice_set'),
             "constants": constants,
         },
     )