dailyactive.py

"""
Python that records information to compute daily active users for your site, assuming your site is running with python. :D (obviously)

Assumes you're concerned about the eastern timezone.
"""

from redis import StrictRedis
from datetime import datetime
from pytz import timezone

def log_user(user_id):
    """
    Log the user activity for the purpose of a daily active user system.
    """

    today = datetime.now(timezone('US/Eastern'))

    # daily:user_id:YYYY-MM-DD
    key = 'daily:%s:%s' % (user_id, str(today.date()))

    r = StrictRedis(host=REDIS_HOST, port=6379)
    r.incr(key)
    r.expire(key, 60 * 60 * 24 * 2) # expires after two days after last update
    
    return