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Simplify changelog cleanup logic

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This commit is contained in:
Jeremy Stretch 2019-08-28 10:44:05 -04:00
parent 22b8a45a71
commit 3078e366e2
1 changed files with 6 additions and 6 deletions
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12
netbox/extras/middleware.py
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@ -45,7 +45,7 @@ def purge_objectchange_cache(sender, **kwargs):
"""
Delete any queued object changes waiting to be written.
"""
_thread_locals.changed_objects = None
_thread_locals.changed_objects = []
class ObjectChangeMiddleware(object):
@ -84,9 +84,8 @@ class ObjectChangeMiddleware(object):
# Process the request
response = self.get_response(request)
# If the change cache has been purged (e.g. due to an exception) abort the logging of all changes resulting from
# this request.
if _thread_locals.changed_objects is None:
# If the change cache is empty, there's nothing more we need to do.
if not _thread_locals.changed_objects:
return response
# Create records for any cached objects that were created/updated.
@ -108,8 +107,9 @@ class ObjectChangeMiddleware(object):
elif objectchange.action == OBJECTCHANGE_ACTION_DELETE:
model_deletes.labels(obj._meta.model_name).inc()
# Housekeeping: 1% chance of clearing out expired ObjectChanges
if _thread_locals.changed_objects and settings.CHANGELOG_RETENTION and random.randint(1, 100) == 1:
# Housekeeping: 1% chance of clearing out expired ObjectChanges. This applies only to requests which result in
# one or more changes being logged.
if settings.CHANGELOG_RETENTION and random.randint(1, 100) == 1:
cutoff = timezone.now() - timedelta(days=settings.CHANGELOG_RETENTION)
purged_count, _ = ObjectChange.objects.filter(
time__lt=cutoff