From e341d6dc7135fa385cf853d10cdecf936ebb32e4 Mon Sep 17 00:00:00 2001
From: virusdefender <1670873886@qq.com>
Date: Mon, 12 Oct 2015 18:34:09 +0800
Subject: [PATCH] fix typo

---
 submission/views.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/submission/views.py b/submission/views.py
index f12b52cb..caa2e681 100644
--- a/submission/views.py
+++ b/submission/views.py
@@ -149,7 +149,7 @@ class SubmissionAdminAPIView(APIView):
         problem_id = request.GET.get("problem_id", None)
         if not problem_id:
             return error_response(u"参数错误")
-        submissions = Submission.objects.filter(problem_id=problem_id, contest_id__isnumm=True).order_by("-create_time")
+        submissions = Submission.objects.filter(problem_id=problem_id, contest_id__isnull=True).order_by("-create_time")
         return paginate(request, submissions, SubmissionSerializer)