modify

trans2es/models/topic.py

@@ -87,6 +87,7 @@ class Topic(models.Model):
         try:
             topic_extra = TopicExtra.objects.filter(topic_id=self.id).first()
             virtual_vote_num = topic_extra.virtual_vote_num if topic_extra else 0
+            
             return virtual_vote_num
         except:
             logging.error("catch exception,err_msg:%s" % traceback.format_exc())