def update_key(self, stat_key, day):
# determine the value from the day before
query = self.session.query(Stat).filter(Stat.key == stat_key).filter(Stat.time < day).order_by(Stat.time.desc())
before = query.first()
old_value = 0
if before:
old_value = before.value
# get the value from redis for the day in question
stat_counter = StatCounter(stat_key, day)
value = stat_counter.get(self.redis_client)
# insert or update a new stat value
hashkey = Stat.to_hashkey(key=stat_key, time=day)
Stat.incr(self.session, hashkey, value, old=old_value)
# queue the redis value to be decreased
stat_counter.decr(self.pipe, value)
def add_counter(self, stat_key, time, value):
stat_counter = StatCounter(stat_key, time)
with redis_pipeline(self.redis_client) as pipe:
stat_counter.incr(pipe, value)
