modify bug

search/views/topic.py

@@ -68,12 +68,11 @@ def get_home_recommend_topic_ids(user_id,device_id,offset,size,query=None,query_
         unread_topic_id_dict = dict()
         have_read_topic_id_set = set()
 
-        ori_unread_topic_id_dict = dict()
-
         if redis_field_val_list[1] and offset>0:
             if (user_id>0 and offset==last_offset_num) or user_id==-1:
                 ori_unread_topic_id_dict = json.loads(redis_field_val_list[1])
-                topic_id_dict = ori_unread_topic_id_dict.update(topic_id_dict)
+                if len(ori_unread_topic_id_dict) > 0:
+                    topic_id_dict.update(ori_unread_topic_id_dict)
 
                 for have_read_item in redis_field_val_list[2:]:
                     if have_read_item: