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)
