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This documentation covers Review Board 3.0. You can see the latest Review Board documentation or all other versions.


reviewboard.extensions.hooks.SignalHook allows extensions to easily connect to signals without worrying about manually disconnecting when the extension is disabled.

To connect to a signal, the extension needs to instantiate SignalHook and pass in the signal to connect to, the callback function, and an optional sender.


import logging

from reviewboard.extensions.base import Extension
from reviewboard.extensions.hooks import SignalHook
from reviewboard.reviews.signals import review_request_published

class SampleExtension(Extension):
    def initialize(self):
        SignalHook(self, review_request_published, self.on_published)

    def on_published(self, review_request=None, **kwargs):
        logging.info('Review request %s was published!',