def sched_flush(cls, name):
"""Tries to schedule a flush of the counter if there isn't any flush set"""
interval_num = get_interval_number(datetime.datetime.now(), INTERVAL)
task_name = '-'.join([str(el) for el in [cls._get_kind(), name, INTERVAL, interval_num]])
try:
deferred.defer(cls.flush_counter, name, _name=task_name,
_countdown=random.randint(0, INTERVAL))
except (taskqueue.TaskAlreadyExistsError, taskqueue.TombstonedTaskError):
pass
def update_tag_feeds(self):
"""Update the tag feed for each tags in this Twisk"""
# FIXME should be factored with TwiskUser.update_feeds and Tag.sched_flush
for tag in self.tags:
interval_num = get_interval_number(datetime.datetime.now(), UPDATE_INTERVAL)
# Generate task name for this tag and this interval
task_name = '-'.join([str(el) for el in [TAG_FEED_NAMESPACE,
tag, interval_num]])
try:
deferred.defer(Twisk.update_tag_feed, tag, _name=task_name,
_countdown=random.randint(0, UPDATE_INTERVAL))
# If this tasks already exists it means that this method has already
# been scheduled less than UPDATE_INTERVAL seconds ago
except (taskqueue.TaskAlreadyExistsError, taskqueue.TombstonedTaskError):
pass
def update_feeds(self):
"""Update the feeds for all of the user's followers (should be called
in a background task)"""
for k in self.followers + [self.key]:
# For each follower, schedule a task with a name unique for this
# user for UPDATE_INTERVAL seconds
# interval_num is going to change every UPDATE_INTERVAL seconds
interval_num = get_interval_number(datetime.datetime.now(), UPDATE_INTERVAL)
# Generate task name for this user and this interval
task_name = "-".join([str(el) for el in [USER_FEED_NAMESPACE, k.id(), interval_num]])
try:
deferred.defer(
TwiskUser.deferred_update_feed, k, _name=task_name, _countdown=random.randint(0, UPDATE_INTERVAL)
)
# If this tasks already exists it means that this method has already
# been scheduled less than UPDATE_INTERVAL seconds ago
except (taskqueue.TaskAlreadyExistsError, taskqueue.TombstonedTaskError):
pass