Redis use of bitmap implement user check-ins

First, the scene needs

Application scenarios such as sign points to send, receive attendance incentives, roughly requirements are as follows:

• Send a sign such as one day integral, continuous integral sign 2 Tiansong 2, 3 Tiansong 3 points, more than 3 days were sent to the integrator 3 and the like.
• If continuous attendance is interrupted, reset the count, the count is reset at the beginning of each month.
• It displays the user check-ins a month and the first sign of the time.
• Show users monthly check-ins, you can switch the date on the calendar display and so on ...... control.

Second, the code

The following code logic no points, only sign

import datetime
import redis

class Redis(object):
    def __init__(self):
        self.redis_store = redis.Redis(
            host="127.0.0.1",
            port="6379",
            db="8"
        )


class RedisSignIn(Redis):
    @staticmethod
    def GetDaliySignKey(time=datetime.datetime.now()):
        # 拼接redis的key
        bitmap_key_daily_sign = "daily_sign_{date}"
        return bitmap_key_daily_sign.format(date=time.date())

    def UserDailySign(self, session):
        user_id = session.get("user")
        if not user_id:
            print( "验证失败")
            return
        if self.UserDaliySignByUserId(user_id):
            rec = self.GetSignRecordByUserId(user_id, 7)
            l = len(rec.split('0')[0])
            print(L)
             # consecutive sign 
            IF L>. 1 :
                 Pass 
            IF L>. 6 :
                 Pass 
        return 
    # acquired record monthly check- 
    DEF GetUserDailySignRecordMonthly (Self, the session): 
        user_id = Session.get ( " User " )
         IF  Not user_id:
             Print ( " verification failure " )
             return 
        RES = self.GetSignRecordByUserId (user_id)
         Print (int (RES, 2 ))
         #10 converts the binary data into binary, the decimal number to get returned to the front end, the front end and then resolved into a binary number is judged 
        return int (RES, 2 ) 


    DEF GetSignRecordByUserId (Self, user_id, = 30 Days ):
         # open pipeline simulation transaction 
        with self.redis_store.pipeline (True) AS the p-:
             for i in the Range (Days):
                 # get key corresponding to the value of someone binary representation of the value of 
                p = p.getbit (self.GetDaliySignKey (datetime.datetime.now () - the datetime.timedelta (Days = I)), user_id)
             # closure line 
            RES = p.execute ()
             # RES is a [1,0,0,0 ...] list 
            Print (RES)
             # transformed into binary string
            return  '' .join ([str (the X-) for the X- in RES]) 

    # do daily attendance by user user_id 
    DEF UserDaliySignByUserId (Self, user_id):
         IF self.GetDailySignByUserId (user_id):
             Print ( " Today you have to sign " )
             return 
        key = self.GetDaliySignKey ()
         # key is to check the date, the user_id is set to 1, it indicates the sign corresponding to the key positions on 
        self.redis_store.setbit (key, user_id, 1 )
         # set the expiration time of the key 
        self. redis_store.expire (Key, 60 * 60 * 24 * 30 )
         return True

    # Through daily attendance information obtaining user user_id 
    DEF GetDailySignByUserId (Self, user_id):
         return self.redis_store.getbit (self.GetDaliySignKey (), user_id) 


IF  the __name__ == ' __main__ ' : 
    the session = { " User " : 1003 } 
    Sign = RedisSignIn () 
    sign.UserDailySign (the session) 
    sign.GetUserDailySignRecordMonthly (the session)