def get_next_fire_time(self, start_date): if start_date < self.start_date: return self.start_date timediff_seconds = timedelta_seconds(start_date - self.start_date) next_interval_num = int(ceil(timediff_seconds / self.interval_length)) return self.start_date + self.interval * next_interval_num
def set_interval(self, interval): self.interval = interval self.interval_length = timedelta_seconds(self.interval) if self.interval_length == 0: self.interval = timedelta(seconds=1) self.interval_length = 1