def publish(self, message, *args, **kwargs):
""" publishes to the message queue and also to cache for each queue
It is expected that this will be connected with get message by a listeners setup method.
If the message passed to it is None it will publish nothing.
"""
if message is None:
return
for queue in self.get_publish_queues(*args, **kwargs):
publish(queue, message)
cache.set(self.cache_key % queue, (time.time(), message))
def publish(self, message, *args, **kwargs):
""" publish a message to queues.
publishes the message to `get_publish_queues(*args, **kwargs)`.
:arg message: the message to publish.
"""
# a message of None will not be sent. and empty dict should be used instead
if message is None:
return
for queue in self.get_publish_queues(*args, **kwargs):
publish(queue, message)
def __call__(self, **kwargs):
for q in self.get_queues(**kwargs):
publish(q, self.get_message(**kwargs))
def publish_demo(sender, instance, **kwargs):
message = dict(title=instance.title, summary=instance.summary, url=instance.link)
publish('test.queue1', message)