From c179d183c862e230ad8fe1ab3923aa1b4d9bca29 Mon Sep 17 00:00:00 2001
From: "sxw@401" <sxwxs@msn.com>
Date: Sun, 13 Sep 2015 20:00:42 +0800
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---
 contest/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contest/models.py b/contest/models.py
index 190fce3..8b8a260 100644
--- a/contest/models.py
+++ b/contest/models.py
@@ -95,7 +95,7 @@ class ContestSubmission(models.Model):
     # 总的时间，用于acm 类型的，也需要保存罚时
     total_time = models.IntegerField(default=0)
     # 第一个解出此题目
-    first_achieved = models.BooleanField()
+    first_achieved = models.BooleanField(default=False)
 
     class Meta:
         db_table = "contest_submission"