modify

trans2es/models/topic.py

@@ -85,9 +85,11 @@ class Topic(models.Model):
     def get_virtual_vote_num(self):
 
         try:
-            topic_extra = TopicExtra.object.get(topic_id=self.id)
-            return topic_extra.virtual_vote_num
+            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())
             return 0
 
     def get_pictorial_id(self):