Many queries, including the default ordering, for the LogEntry
model rely on the timestamp field. Adding an index will ensure
reasonable scalability for large audit logs.
The `django-jsonfield` module is not maintained anymore and raises some
errors with Django 4.0. So, as a recommendation in this package, and as
Django 2.2 is still maintained, `django-jsonfield-backport` will do the
job for the `JSONField` field.
Ref #43
Ref #334
For some applications the possibility to filter by the `action` field might be really interesting. However the lack of an index can lead to severe reduction of such queries.
The simplest solution: Let's a DB index on that field :)
