Files
awx/awx/main/registrar.py
2015-06-11 16:10:23 -04:00

48 lines
2.1 KiB
Python

# Copyright (c) 2015 Ansible, Inc.
# All Rights Reserved.
import logging
from django.conf import settings
from django.db.models.signals import pre_save, post_save, post_delete, m2m_changed
logger = logging.getLogger('awx.main.registrar')
class ActivityStreamRegistrar(object):
def __init__(self):
self.models = []
def connect(self, model):
if not getattr(settings, 'ACTIVITY_STREAM_ENABLED', True):
return
from awx.main.signals import activity_stream_create, activity_stream_update, activity_stream_delete, activity_stream_associate
if model not in self.models:
self.models.append(model)
post_save.connect(activity_stream_create, sender=model, dispatch_uid=str(self.__class__) + str(model) + "_create")
pre_save.connect(activity_stream_update, sender=model, dispatch_uid=str(self.__class__) + str(model) + "_update")
post_delete.connect(activity_stream_delete, sender=model, dispatch_uid=str(self.__class__) + str(model) + "_delete")
for m2mfield in model._meta.many_to_many:
try:
m2m_attr = getattr(model, m2mfield.name)
m2m_changed.connect(activity_stream_associate, sender=m2m_attr.through,
dispatch_uid=str(self.__class__) + str(m2m_attr.through) + "_associate")
except AttributeError:
pass
def disconnect(self, model):
if model in self.models:
post_save.disconnect(dispatch_uid=str(self.__class__) + str(model) + "_create")
pre_save.disconnect(dispatch_uid=str(self.__class__) + str(model) + "_update")
post_delete.disconnect(dispatch_uid=str(self.__class__) + str(model) + "_delete")
self.models.pop(model)
for m2mfield in model._meta.many_to_many:
m2m_attr = getattr(model, m2mfield.name)
m2m_changed.disconnect(dispatch_uid=str(self.__class__) + str(m2m_attr.through) + "_associate")
activity_stream_registrar = ActivityStreamRegistrar()