def post(self, *args, **kwargs):
seconds = self.request.POST.get('seconds')
if seconds: # 几秒后执行任务
# 重复任务
int_sche = IntervalSchedule.objects.filter(every=seconds, period='seconds')
if int_sche:
int_sche = int_sche[0]
else:
int_sche = IntervalSchedule()
int_sche.every = int(seconds)
int_sche.period = 'seconds'
int_sche.save()
# 定时任务(也可以是重复的，不能精确到秒)
# cron_sche = CrontabSchedule()
# cron_sche.minute = 1
# cron_sche.hour = 1
# cron_sche.day_of_week = '0,1,2'
# cron_sche.day_of_month = '0,1,2'
# cron_sche.month_of_year = '0,1,2'
# cron_sche.save()
pt = PeriodicTask()
pt.name = u'每隔 %sS 执行一次任务 %s' % (seconds, str(uuid.uuid1())) # name 是唯一的，故后缀了uuid
pt.task = 'demo_celery.tasks.add'
pt.interval = int_sche # interval 和 schedule 这两个属性只能选一个
# pt.crontab = cron_sche
# pt.expires = datetime.datetime.now() + datetime.timedelta(days=1)
pt.save()
return HttpResponse('添加成功')
else:
res = add.delay(2, 3)
return HttpResponse(HttpResponse(res.result))
def schedule_every(self, task_name, period, every, crontab='',args=None, kwargs=None, queue=''):
main_task = 'optimizer.tasks.base_task'
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
# create the periodic task and the interval
ptask_name = "%s_%s" % (task_name, datetime.datetime.now()) # create some name for the period task
if period and every:
if period not in permissible_periods:
raise Exception('Invalid period specified')
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=ptask_name, task=main_task, interval=interval_schedule)
elif crontab:
ptask = PeriodicTask(name=ptask_name, task=main_task, crontab=crontab)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.queue = queue
ptask.save()
return ptask
def update(self, task_name='test', period='', every='', crontab='', queue='', args=None, kwargs=None):
pt = self.task
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
ptask_name = "%s_%s" % (task_name, datetime.now())
pt.name=ptask_name
if period and every:
if period not in permissible_periods:
raise Exception('Invalid period specified')
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
pt.interval=interval_schedule
elif crontab:
pt.crontab = crontab
if args:
pt.args = args
if kwargs:
pt.kwargs = kwargs
pt.queue = queue
pt.save(update_fields=['name', 'task', 'queue', 'interval', 'args', 'kwargs',])
print(pt)
def schedule_every(task_name, period, every, args=None, kwargs=None):
"""
schedules a task by name every "every" "period". So an example call would be:
TaskScheduler('mycustomtask', 'seconds', 30, [1,2,3])
that would schedule your custom task to run every 30 seconds with the arguments 1,2 and 3 passed to the actual task.
"""
permissible_periods = ["days", "hours", "minutes", "seconds"]
if period not in permissible_periods:
raise Exception("Invalid period specified")
# create the periodic task and the interval
ptask_name = "%s_%s" % (task_name, datetime.now()) # create some name for the period task
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=ptask_name, task=task_name, interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return TaskScheduler.objects.create(periodic_task=ptask)
def schedule_every(task_name, period, every, args=None, kwargs=None):
"""
schedules a task by name every "every" "period". So an example call would be:
TaskScheduler('mycustomtask', 'seconds', 30, [1,2,3])
that would schedule your custom task to run every 30 seconds with the arguments 1,2 and 3 passed to the actual task.
"""
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# create the periodic task and the interval
ptask_name = "%s_%s" % (task_name, datetime.now()
) # create some name for the period task
interval_schedules = IntervalSchedule.objects.filter(period=period,
every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=ptask_name,
task=task_name,
interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return TaskScheduler.objects.create(periodic_task=ptask)
def make_periodic_interval_task(name, task, every_sec, *args, **kwargs):
'''creates a new periodic interval task, with name=name, updates fields if already exists'''
pt, created = PeriodicTask.objects.get_or_create(name= name)
if pt.crontab:
print("Warning, old task entry had a crontab")
if pt.crontab.periodictask_set.count() == 1:
print("Was the only one used , deleting it")
ct = pt.crontab
ct.delete()
pt.crontab = None
if not pt.interval:
i= IntervalSchedule()
else:
i= pt.interval
i.period = "seconds"
i.every = str(every_sec)
i.save()
pt.interval = i
pt.task = task
pt.args = anyjson.serialize(args)
pt.kwargs = anyjson.serialize(kwargs)
pt.save()
print ("saved task: %s, created: %s" % (str(pt), str(created)))
def add_task(request, nums):
if request.method == 'GET':
logging.info(nums)
if nums: # 几秒后执行任务
# 重复任务
int_sche = IntervalSchedule.objects.filter(every=nums, period='seconds')
if int_sche:
int_sche = int_sche[0]
else:
int_sche = IntervalSchedule()
int_sche.every = nums
int_sche.period = 'seconds'
int_sche.save()
# 定时任务(也可以是重复的，不能精确到秒)
# cron_sche = CrontabSchedule()
# cron_sche.minute = 1
# cron_sche.hour = 1
# cron_sche.day_of_week = '0,1,2'
# cron_sche.day_of_month = '0,1,2'
# cron_sche.month_of_year = '0,1,2'
# cron_sche.save()
pt = PeriodicTask()
pt.name = u'每隔 %sS 执行一次任务 %s' % (nums, str(uuid.uuid1())) # name 是唯一的，故后缀了uuid
pt.task = 'celery_demo.tasks.add'
pt.interval= int_sche # interval 和 schedule 这两个属性只能选一个
# pt.crontab = cron_sche
# pt.expires = datetime.datetime.now() + datetime.timedelta(days=1)
pt.save()
else:
res = add.delay(2, 3)
return HttpResponse(HttpResponse(res.result))
def schedule_every(self, every, period, args=None, kwargs=None):
print "Scheduling %s to run every %s %s" % (self.name, every, period)
if self.periodic_task:
self.periodic_task.delete()
print "Cleared all current periodic tasks"
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified: %s, must be one of: %s' % (period, ','.join(permissible_periods)))
# create the periodic task and the interval
ptask_name = "%s_%s" % (self.celery_task_name, self.name)
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else:
interval_schedule = IntervalSchedule()
interval_schedule.every = every
interval_schedule.period = period
interval_schedule.save()
print "Creating new periodic task"
periodic_task = PeriodicTask(name=ptask_name, task=self.celery_task_name, interval=interval_schedule)
if args:
periodic_task.args = args
if kwargs:
periodic_task.kwargs = kwargs
periodic_task.save()
print "Attached the periodic task to the project task"
self.periodic_task = periodic_task
print "Saving project task"
self.save()
def schedule_every(task_name, task, period, every, args=None, kwargs=None):
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# create the periodic task and the interval
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=task_name, task=task, interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return TaskScheduler.objects.create(periodic_task=ptask)
def schedule_task_every(task_name, every, period, args=None, kwargs=None):
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# create the periodic task and the interval
ptask_name = "%s_%s" % (task_name, datetime.datetime.now())
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else:
interval_schedule = IntervalSchedule()
interval_schedule.every = every
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=ptask_name, task=task_name, interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return ProjectTask.objects.create(periodic_task=ptask, name=task_name)
def schedule_every(task_name, task, period, every, args=None, kwargs=None):
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# create the periodic task and the interval
interval_schedules = IntervalSchedule.objects.filter(period=period,
every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=task_name,
task=task,
interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return TaskScheduler.objects.create(periodic_task=ptask)
def manage_interval(period, every):
""" adapted from
https://groups.google.com/forum/#!msg/celery-users/CZXCh8sCK5Q/ihZgMV2HWWYJ
c/o Jean Mark
"""
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# query intervals
interval_schedules = IntervalSchedule.objects.filter(period=period,
every=every)
# just check if interval schedules exist like that already and reuse em
if interval_schedules:
interval_schedule = interval_schedules[0]
# else, create a brand new interval schedule
else:
interval_schedule = IntervalSchedule()
interval_schedule.every = abs(every)
interval_schedule.period = period
interval_schedule.save()
return interval_schedule
