From 3b6cbc51a1219ebf7a3619a6b45bdb1e5ce57b87 Mon Sep 17 00:00:00 2001
From: virusdefender <qduliyang@outlook.com>
Date: Sun, 29 May 2016 16:12:29 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=88=97=E8=A1=A8=E8=B6=8A?=
 =?UTF-8?q?=E7=95=8C=E5=AF=BC=E8=87=B4=E7=9A=84=E5=BC=82=E5=B8=B8?=
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---
 contest/views.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contest/views.py b/contest/views.py
index 25dd52d..80e8669 100644
--- a/contest/views.py
+++ b/contest/views.py
@@ -485,7 +485,7 @@ def contest_rank_page(request, contest_id):
             rank = json.loads(rank)
 
             # 2016-05-19 增加了缓存项目,以前的缓存主动失效
-            if "rank_number" not in rank[0]:
+            if rank and "rank_number" not in rank[0]:
                 rank = _get_rank(contest_id)
                 r.set(cache_key, json.dumps([dict(item) for item in rank]))