def add_crontab_occurrences(self, count=2):
""" Ajouter des occurrences selon le crontab """
crontab = self.get_data('crontab', '')
scheduler = CronTab(crontab)
occurrence_time = timezone.now()
occurrences_added = 0
for index in range(count):
delay = scheduler.next(now=occurrence_time)
occurrence_time += delay
success = self.add_occurrence(occurrence_time)
occurrences_added += 1 if success else 0
return occurrences_added
class CronSchedule(Schedule):
'''
>>> from datetime import datetime
>>> schedule = CronSchedule('0 * * * *')
>>> str(schedule)
'0 * * * *'
>>> schedule.is_overdue(datetime(2000, 1, 1, 1, 0, 0), datetime(2000, 1, 1, 0, 0, 0))
True
>>> schedule.is_overdue(datetime(2000, 1, 1, 0, 30, 0), datetime(2000, 1, 1, 0, 0, 0))
False
'''
def __init__(self, expression):
super(CronSchedule, self).__init__()
self._expression = expression
self._cron = CronTab(expression)
def __str__(self):
return self._expression
def is_overdue(self, now, last):
delta = self._cron.next(last)
delta = timedelta(seconds=delta)
return last + delta <= now
def __init__(self, expression):
super(CronSchedule, self).__init__()
self._expression = expression
self._cron = CronTab(expression)
