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Closes #21303: Cache serialized post-change data on object (#21325)

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* Closes #21303: Cache serialized post-change data on object

* Set to_objectchange.alters_data

* Restructure logic for determining post-change snapshot
This commit is contained in:
Jeremy Stretch
2026-01-30 14:49:12 -05:00
committed by GitHub
parent 5c6fc2fb6f
commit aa4a9da955
2 changed files with 22 additions and 12 deletions
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30
netbox/extras/events.py
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@@ -51,18 +51,26 @@ def serialize_for_event(instance):
def get_snapshots(instance, event_type):
snapshots = {
'prechange': getattr(instance, '_prechange_snapshot', None),
'postchange': None,
}
if event_type != OBJECT_DELETED:
# Use model's serialize_object() method if defined; fall back to serialize_object() utility function
if hasattr(instance, 'serialize_object'):
snapshots['postchange'] = instance.serialize_object()
else:
snapshots['postchange'] = serialize_object(instance)
"""
Return a dictionary of pre- and post-change snapshots for the given instance.
"""
if event_type == OBJECT_DELETED:
# Post-change snapshot must be empty for deleted objects
postchange_snapshot = None
elif hasattr(instance, '_postchange_snapshot'):
# Use the cached post-change snapshot if one is available
postchange_snapshot = instance._postchange_snapshot
elif hasattr(instance, 'serialize_object'):
# Use model's serialize_object() method if defined
postchange_snapshot = instance.serialize_object()
else:
# Fall back to the serialize_object() utility function
postchange_snapshot = serialize_object(instance)
return snapshots
return {
'prechange': getattr(instance, '_prechange_snapshot', None),
'postchange': postchange_snapshot,
}
def enqueue_event(queue, instance, request, event_type):