dispatch.Signal.connect()

Signal.connect(receiver, sender=None, weak=True, dispatch_uid=None) [source]

Parameters:

Parameters:	receiver – The callback function which will be connected to this signal. See Receiver functions for more information. sender – Specifies a particular sender to receive signals from. See Connecting to signals sent by specific senders for more information. weak – Django stores signal handlers as weak references by default. Thus, if your receiver is a local function, it may be garbage collected. To prevent this, pass `weak=False` when you call the signal’s `connect()` method. dispatch_uid – A unique identifier for a signal receiver in cases where duplicate signals may be sent. See Preventing duplicate signals for more information.

receiver – The callback function which will be connected to this signal. See Receiver functions for more information.
sender – Specifies a particular sender to receive signals from. See Connecting to signals sent by specific senders for more information.
weak – Django stores signal handlers as weak references by default. Thus, if your receiver is a local function, it may be garbage collected. To prevent this, pass weak=False when you call the signal’s connect() method.
dispatch_uid – A unique identifier for a signal receiver in cases where duplicate signals may be sent. See Preventing duplicate signals for more information.

Let’s see how this works by registering a signal that gets called after each HTTP request is finished. We’ll be connecting to the request_finished signal.

Links:

https://docs.djangoproject.com/en/1.10/topics/signals/#django.dispatch.Signal.connect

doc_Django

2016-10-09 18:36:29

Comments