def id_score_list_by_user_id(user_id): key = REDIS_REC_USER_TAG_CAN_REC%user_id result = redis.get(key) if result is None: key_tag = REDIS_REC_USER_TAG%user_id if redis.exists(key_tag): #第一次初始化 result = redis.zrevrange(key_tag, 0, REDIS_REC_USER_TAG_LIMIT-1, True) id_score_list_new(user_id, result) else: result = None else: result = loads_id_score(result) return result
def id_list_by_str(self, query, limit=7): name_list = query.replace('`', "'").split() if not name_list: return [] name_list.sort() name_key = '`'.join(name_list) id_list = self._get_cache(name_key) id_list = None #TODO REMOVE ZSET_CID = self.ZSET_CID if id_list is None: mkey = ZSET_CID%name_key if len(name_list)>1 and not redis.exists(mkey): p = redis.pipeline() p.zinterstore(mkey, map(ZSET_CID.__mod__, name_list), 'MAX') p.expire(mkey, EXPIRE) p.execute() id_list = redis.zrevrange(mkey, 0, 10) id_list = list(map(int, id_list)) #id = self.id_by_name(query) #if id: # id = int(id) # if len(id_list) > 5: # id_list.insert(4, id) # else: # id_list.append(id) #id_list = unique(id_list) self._set_cache(name_key, id_list) #print redis.zrevrange(mkey, 0, 10,True) #print id_list return id_list[:limit]
def rec_read_by_user_id_tag_id(user_id, tag_id): po_id = 0 from_new = False now = time_new_offset() ut_id = (user_id, tag_id) key_to_rec = REDIS_REC_USER_PO_TO_REC%ut_id key_readed = REDIS_REC_USER_TAG_READED%ut_id exists_key_to_rec = redis.exists(key_to_rec) cache_key_to_rec = False for i in xrange(7): #如果有可以推荐的缓存 , 读取缓存 if exists_key_to_rec: po_id_list = redis.zrevrange(key_to_rec, 0, 0) if po_id_list: po_id = po_id_list[0] redis.zrem(key_to_rec, po_id) else: break else: key_tag_new = REDIS_REC_TAG_NEW%tag_id po_id = redis.srandmember(key_tag_new) #print 'srandmember' , po_id if po_id: from_new = True last = redis.zrevrange(key_readed, 0 , 0 , True) if last and (last[0][1] - now) < ONE_HOUR: cache_key_to_rec = True else: cache_key_to_rec = True if cache_key_to_rec: #生成缓存 有效期1天 推荐文章 p = redis.pipeline() #p = redis p.zunionstore(key_to_rec, {key_readed:-1, REDIS_REC_TAG_OLD%tag_id:1}) p.zremrangebyscore(key_to_rec, '-inf', 0) p.expire(key_to_rec, ONE_DAY) p.execute() exists_key_to_rec = True #方便没有的时候跳出循环 #print 'redis.zcard(key_readed)', redis.zcard(key_to_rec) if po_id: redis.zadd(key_readed, po_id, now) if redis.zrank(REDIS_REC_USER_LOG%user_id, po_id) is not None: po_id = 0 if po_id: break if po_id: redis.hincrby(REDIS_REC_PO_TIMES, po_id, 1) if from_new: if redis.hget(REDIS_REC_PO_TIMES, po_id) >= REDIS_REC_PO_SHOW_TIMES: redis.srem(key_tag_new, po_id) _user_tag_old_rank(po_id, tag_id) #else: #redis.zincrby(key, po_id, 1) else: k = random() if k < 0.01: _user_tag_old_rank(po_id, tag_id) return po_id
#!/usr/bin/env python #coding:utf-8 from _db import redis, R R_GID = R.GID() if not redis.exists(R_GID): redis.set(R_GID, 9912499) def gid(): return redis.incr(R_GID) if __name__ == '__main__': print gid() #redis.set(R_GID, 9912499)