I would like to create a handler for the course_published event.
Based on the comments in the SignalHandler class:
class SignalHandler(object):
"""
This class is to allow the modulestores to emit signals that can be
caught
by other parts of the Django application. If your app needs to do
something
every time a course is published (e.g. search indexing), you can listen
for
that event and kick off a celery task when it happens.
To listen for a signal, do the following::
from django.dispatch import receiver
from celery.task import task
from xmodule.modulestore.django import modulestore, SignalHandler
@receiver(SignalHandler.course_published)
def listen_for_course_publish(sender, course_key, **kwargs):
do_my_expensive_update.delay(course_key)
@task()
def do_my_expensive_update(course_key):
# ...
Things to note:
1. We receive using the Django Signals mechanism.
2. The sender is going to be the class of the modulestore sending it.
3. The names of your handler function's parameters *must* be "sender"
and "course_key".
4. Always have **kwargs in your signal handler, as new things may be
added.
5. The thing that listens for the signal lives in process, but should do
almost no work. Its main job is to kick off the celery task that will
do the actual work.
"""
I understand what the code should look like. What I don't understand is
where this code should go. Do I need to create a new django app and install
it or is there a simpler way?
Thanks
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