modify

search/views/topic.py

@@ -27,6 +27,7 @@ def home_recommend(session_id="",user_id=-1,offset=0,size=10):
             session_id = ""
         redis_key = "physical:home_recommend" + ":user_id:" + str(user_id) + ":session_id:" + session_id
         redis_val_dict = redis_client.hgetall(redis_key)
+        last_offset_num = redis_val_dict["last_offset_num"] if "last_offset_num" in redis_val_dict else -1
 
         recommend_topic_ids = []
 
@@ -35,9 +36,9 @@ def home_recommend(session_id="",user_id=-1,offset=0,size=10):
         unread_topic_id_list = list()
         have_read_topic_id_tuple = set()
 
-        if len(redis_val_dict)>0:
-            topic_id_list = json.loads(redis_val_dict[b"unread_topic_id"]) + topic_id_list
-            have_read_topic_id_tuple = set(json.loads(redis_val_dict[b"have_read_topic_id"]))
+        if len(redis_val_dict)>0 and offset>0 and user_id>0 and offset==(last_offset_num+1):
+            topic_id_list = redis_val_dict[b"unread_topic_id"] + topic_id_list
+            have_read_topic_id_tuple = set(redis_val_dict[b"have_read_topic_id"])
         for item in topic_id_list:
             if item["group_id"] in have_read_group_id_tuple:
                 unread_topic_id_list.append(item)
@@ -59,7 +60,8 @@ def home_recommend(session_id="",user_id=-1,offset=0,size=10):
         if len(unread_topic_id_list)>0:
             redis_dict = {
                 "unread_topic_id":json.dumps(unread_topic_id_list),
-                "have_read_topic_id":json.dumps(list(have_read_topic_id_tuple))
+                "have_read_topic_id":json.dumps(list(have_read_topic_id_tuple)),
+                "last_offset_num":offset
             }
             redis_client.hmset(redis_key,redis_dict)
             # 每个session key保存15分钟
@@ -89,6 +91,7 @@ def home_query(session_id="",user_id=-1,query="",offset=0,size=10):
             session_id = ""
         redis_key = "physical:home_query" + ":user_id:" + str(user_id) + ":session_id:" + session_id
         redis_val_dict = redis_client.hgetall(redis_key)
+        last_offset_num = redis_val_dict["last_offset_num"] if "last_offset_num" in redis_val_dict else -1
 
         recommend_topic_ids = []
 
@@ -97,7 +100,7 @@ def home_query(session_id="",user_id=-1,query="",offset=0,size=10):
         unread_topic_id_list = list()
         have_read_topic_id_tuple = set()
 
-        if len(redis_val_dict)>0:
+        if len(redis_val_dict)>0 and offset>0 and user_id>0 and offset==(last_offset_num+1):
             topic_id_list = json.loads(redis_val_dict[b"unread_topic_id"]) + topic_id_list
             have_read_topic_id_tuple = set(json.loads(redis_val_dict[b"have_read_topic_id"]))
         for item in topic_id_list:
@@ -121,7 +124,8 @@ def home_query(session_id="",user_id=-1,query="",offset=0,size=10):
         if len(unread_topic_id_list)>0:
             redis_dict = {
                 "unread_topic_id":json.dumps(unread_topic_id_list),
-                "have_read_topic_id":json.dumps(list(have_read_topic_id_tuple))
+                "have_read_topic_id":json.dumps(list(have_read_topic_id_tuple)),
+                "last_offset_num":offset
             }
             redis_client.hmset(redis_key,redis_dict)
             # 每个session key保存15分钟