From 6335a3a1eaa162a24bacc285afaec621ecf9431c Mon Sep 17 00:00:00 2001
From: virusdefender <1670873886@qq.com>
Date: Wed, 23 Sep 2015 21:31:15 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=20None=20=E5=AF=BC=E8=87=B4?=
 =?UTF-8?q?=E7=9A=84=20xss=20filter=20=E9=94=99=E8=AF=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 utils/models.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/utils/models.py b/utils/models.py
index f9844903..99e39448 100644
--- a/utils/models.py
+++ b/utils/models.py
@@ -8,6 +8,8 @@ class RichTextField(models.TextField):
     __metaclass__ = models.SubfieldBase
 
     def get_prep_value(self, value):
+        if not value:
+            return value
         parser = XssHtml()
         parser.feed(value)
         parser.close()