perf: 组卷时改用bulk_create

这样初次访问`/contest/`时可以减少18次SQL（69 → 51）。
BITNP · Aug 25, 2024 · 8f0a88b · 8f0a88b
1 parent 57b5ab3
commit 8f0a88b
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Showing 2 changed files with 6 additions and 7 deletions.
diff --git a/contest/quiz/constants.py b/contest/quiz/constants.py
@@ -60,7 +60,7 @@ class ConstantsNamespace:
  DEADLINE_DURATION = timedelta(seconds=300)
  """作答限时"""
 
- MAX_TRIES = 2
+ MAX_TRIES = 200
  """答题次数上限"""
 
  YEAR = 2024

diff --git a/contest/quiz/views.py b/contest/quiz/views.py
@@ -22,15 +22,15 @@
 from django.views.generic import TemplateView
 
 from .constants import constants
-from .models import Choice, DraftResponse, Question
+from .models import Choice, DraftAnswer, DraftResponse, Question
 from .util import is_open, is_student, is_student_taking_contest, pass_or_forbid, student_only
 
 if TYPE_CHECKING:
  from typing import Any, Literal
 
  from django.contrib.auth.models import AnonymousUser
 
- from .models import DraftAnswer, Student, User
+ from .models import Student, User
  from .util import AuthenticatedHttpRequest
 
 
@@ -222,10 +222,9 @@ def contest(request: AuthenticatedHttpRequest) -> HttpResponse:
 
  # 保存
  draft_response.save()
- for q in questions:
- draft_response.answer_set.create(
- question=q,
- )
+ draft_response.answer_set.bulk_create(
+ [DraftAnswer(question=q, response=draft_response) for q in questions]
+ )
 
  return render(
  request,