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Utils

clean_duplicate_history

For performance reasons, django-simple-history always creates an HistoricalRecord when Model.save() is called regardless of data having actually changed. If you find yourself with a lot of history duplicates you can schedule the clean_duplicate_history command

$ python manage.py clean_duplicate_history --auto

You can use --auto to clean up duplicates for every model with HistoricalRecords or enumerate specific models as args. There is also -m/--minutes to specify how many minutes to go back in history while searching (default checks whole history), so you can schedule, for instance, an hourly cronjob such as

$ python manage.py clean_duplicate_history -m 60 --auto

You can also use --excluded_fields to provide a list of fields to be excluded from the duplicate check

$ python manage.py clean_duplicate_history --auto --excluded_fields field1 field2

clean_old_history

You may want to remove historical records that have existed for a certain amount of time.

If you find yourself with a lot of old history you can schedule the clean_old_history command

$ python manage.py clean_old_history --auto

You can use --auto to remove old historial entries with HistoricalRecords or enumerate specific models as args. You may also specify a --days parameter, which indicates how many days of records you want to keep. The default it 30 days, meaning that all records older than 30 days would be removed.

$ python manage.py clean_old_history --days 60 --auto
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