django-simple-history

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django-simple-history stores Django model state on every create/update/delete.

This app supports the following combinations of Django and Python:

Django Python
3.2 3.7, 3.8, 3.9, 3.10
4.0 3.8, 3.9, 3.10
4.1 3.8, 3.9, 3.10, 3.11

Documentation

Changes

Unreleased

  • Fixed typos in the docs
  • Added feature to evaluate history model permissions explicitly when SIMPLE_HISTORY_ENFORCE_HISTORY_MODEL_PERMISSIONS is set to True in settings (gh-1017).
  • Fixed SimpleHistoryAdmin not properly integrating with custom user models (gh-1177)

3.3.0 (2023-03-08)

  • Made it possible to use the new m2m_fields with model inheritance (gh-1042)
  • Added two signals: pre_create_historical_m2m_records and post_create_historical_m2m_records (gh-1042)
  • Added tracked_fields attribute to historical models (gh-1038)
  • Fixed KeyError when running clean_duplicate_history on models with excluded_fields (gh-1038)
  • Added support for Python 3.11 (gh-1053)
  • Added Arabic translations (gh-1056)
  • Fixed a code example under “Tracking many to many relationships” (gh-1069)
  • Added a --base-manager option to the clean_duplicate_history management command (gh-1115)

3.2.0 (2022-09-28)

  • Fixed typos in the docs
  • Removed n+1 query from bulk_create_with_history utility (gh-975)
  • Started using exists query instead of count in populate_history command (gh-982)
  • Add basic support for many-to-many fields (gh-399)
  • Added support for Django 4.1 (gh-1021)

3.1.1 (2022-04-23)

Full list of changes:

  • Fix py36 references in pyproject.toml (gh-960)
  • Fix local setup.py install versioning issue (gh-960)
  • Remove py2 universal wheel cfg - only py3 needed now (gh-960)

3.1.0 (2022-04-09)

Breaking Changes:

  • Dropped support for Django 2.2 (gh-968)
  • Dropped support for Django 3.1 (gh-952)
  • Dropped support for Python 3.6, which reached end-of-life on 2021-12-23 (gh-946)

Upgrade Implications:

  • Run makemigrations after upgrading to realize the benefit of indexing changes.

Full list of changes:

  • Added queryset-based filtering with as_of (gh-397)
  • Added index on history_date column; opt-out with setting SIMPLE_HISTORY_DATE_INDEX (gh-565)
  • RecordModels now support a no_db_index setting, to drop indices in historical models, default stays the same (gh-720)
  • Support included_fields for history.diff_against (gh-776)
  • Improve performance of history.diff_against by reducing number of queries to 0 in most cases (gh-776)
  • Fixed prev_record and next_record performance when using excluded_fields (gh-791)
  • Fixed update_change_reason in pk (gh-806)
  • Fixed bug where serializer of djangorestframework crashed if used with OrderingFilter (gh-821)
  • Fixed make format so it works by using tox (gh-859)
  • Fixed bug where latest() is not idempotent for identical history_date records (gh-861)
  • Added excluded_field_kwargs to support custom OneToOneField that have additional arguments that don’t exist on ForeignKey. (gh-870)
  • Added Czech translations (gh-885)
  • Added ability to break into debugger on unit test failure (gh-890)
  • Added pre-commit for better commit quality (gh-896)
  • Russian translations update (gh-897)
  • Added support for Django 4.0 (gh-898)
  • Added Python 3.10 to test matrix (gh-899)
  • Fix bug with history.diff_against with non-editable fields (gh-923)
  • Added HistoricForeignKey (gh-940)
  • Support change reason formula feature. Change reason formula can be defined by overriding get_change_reason_for_object method after subclassing HistoricalRecords (gh-962)

3.0.0 (2021-04-16)

Breaking changes:

  • Removed support for Django 3.0
  • Removed changeReason in favor of _change_reason (see 2.10.0)

Full list of changes:

  • Removed support for Django versions prior to 2.2 (gh-652)
  • Migrate from TravisCI to Github Actions (gh-739)
  • Add Python 3.9 support (gh-745)
  • Support ignore_conflicts in bulk_create_with_history (gh-733)
  • Use asgiref when available instead of thread locals (gh-747)
  • Sort imports with isort (gh-751)
  • Queryset history.as_of speed improvements by calculating in the DB (gh-758)
  • Increase black and isort python version to 3.6 (gh-817)
  • Remove Django 3.0 support (gh-817)
  • Add Django 3.2 support (gh-817)
  • Improve French translations (gh-811)
  • Remove support for changeReason (gh-819)

2.12.0 (2020-10-14)

  • Add default date to bulk_create_with_history and bulk_update_with_history (gh-687)
  • Exclude ManyToManyFields when using bulk_create_with_history (gh-699)
  • Added --excluded_fields argument to clean_duplicate_history command (gh-674)
  • Exclude ManyToManyFields when fetching excluded fields (gh-707)
  • Use default model manager for bulk_create_with_history and bulk_update_with_history instead of objects (gh-703)
  • Add optional manager argument to bulk_update_with_history to use instead of the default manager (gh-703)
  • Add support for Django 3.1 (gh-713)
  • Fix a bug with clean_old_history command’s –days argument (gh-722)

* NOTE: This will be the last minor release before 3.0.0.

2.11.0 (2020-06-20)

  • Added clean_old_history management command (gh-675)
  • Added user_db_constraint param to history to avoid circular reference on delete (gh-676)
  • Leverages get_user from HistoricalRecords in order to set a fallback user on bulk update and bulk create (gh-677)

2.10.0 (2020-04-27)

  • Added bulk_update_with_history utility function (gh-650)
  • Add default user and default change reason to bulk_create_with_history and bulk_update_with_history (gh-653)
  • Add french translation (gh-654)
  • Start using _change_reason instead of changeReason to add change reasons to historical objects. changeReason is deprecated and will be removed in version 3.0.0 (gh-655)

2.9.0 (2020-04-23)

  • Add simple filtering if provided a minutes argument in clean_duplicate_history (gh-606)
  • Add setting to convert FileField to CharField instead of TextField (gh-625)
  • Added notes on BitBucket Pipelines (gh-627)
  • import model ContentType in SimpleHistoryAdmin using django_apps.get_model to avoid possible AppRegistryNotReady exception (gh-630)
  • Fix utils.update_change_reason when user specifies excluded_fields (gh-637)
  • Changed how now is imported from timezone (timezone module is imported now) (gh-643)
  • settings.SIMPLE_HISTORY_REVERT_DISABLED if True removes the Revert button from the history form for all historical models (gh-632))

2.8.0 (2019-12-02)

  • Fixed bulk_create_with_history support for HistoryRecords with relation_name attribute (gh-591)
  • Added support for bulk_create_with_history for databases different from PostgreSQL (gh-577)
  • Fixed DoesNotExist error when trying to get instance if object is deleted (gh-571)
  • Fix model_to_dict to detect changes in a parent model when using inherit=True (backwards-incompatible for users who were directly using previous version) (gh-576)
  • Use an iterator for clean_duplicate_history (gh-604)
  • Add support for Python 3.8 and Django 3.0 (gh-610)

2.7.3 (2019-07-15)

  • Fixed BigAutoField not mirrored as BigInt (gh-556)
  • Fixed most_recent() bug with excluded_fields (gh-561)
  • Added official Django 2.2 support (gh-555)

2.7.2 (2019-04-17)

  • Fixed ModuleNotFound issue for six (gh-553)

2.7.1 (2019-04-16)

  • Added the possibility to create a relation to the original model (gh-536)
  • Fix router backward-compatibility issue with 2.7.0 (gh-539, gh-547)
  • Fix hardcoded history manager (gh-542)
  • Replace deprecated django.utils.six with six (gh-526)
  • Allow custom_model_name parameter to be a callable (gh-489)

2.7.0 (2019-01-16)

  • * Add support for using chained manager method and save/delete keyword argument (gh-507)
  • Added management command clean_duplicate_history to remove duplicate history entries (gh-483)
  • Updated most_recent to work with excluded_fields (gh-477)
  • Fixed bug that prevented self-referential foreign key from using 'self' (gh-513)
  • Added ability to track custom user with explicit custom history_user_id_field (gh-511)
  • Don’t resolve relationships for history objects (gh-479)
  • Reorganization of docs (gh-510)

* NOTE: This change was not backward compatible for users using routers to write history tables to a separate database from their base tables. This issue is fixed in 2.7.1.

2.6.0 (2018-12-12)

  • Add app parameter to the constructor of HistoricalRecords (gh-486)
  • Add custom_model_name parameter to the constructor of HistoricalRecords (gh-451)
  • Fix header on history pages when custom site_header is used (gh-448)
  • Modify pre_create_historical_record to pass history_instance for ease of customization (gh-421)
  • Raise warning if HistoricalRecords(inherit=False) is in an abstract model (gh-341)
  • Ensure custom arguments for fields are included in historical models’ fields (gh-431)
  • Add german translations (gh-484)
  • Add extra_context parameter to history_form_view (gh-467)
  • Fixed bug that prevented next_record and prev_record to work with custom manager names (gh-501)

2.5.1 (2018-10-19)

  • Add '+' as the history_type for each instance in bulk_history_create (gh-449)
  • Add support for history_change_reason for each instance in bulk_history_create (gh-449)
  • Add history_change_reason in the history list view under the Change reason display name (gh-458)
  • Fix bug that caused failures when using a custom user model (gh-459)

2.5.0 (2018-10-18)

  • Add ability to cascade delete historical records when master record is deleted (gh-440)
  • Added Russian localization (gh-441)

2.4.0 (2018-09-20)

  • Add pre and post create_historical_record signals (gh-426)
  • Remove support for django_mongodb_engine when converting AutoFields (gh-432)
  • Add support for Django 2.1 (gh-418)

2.3.0 (2018-07-19)

  • Add ability to diff HistoricalRecords (gh-244)

2.2.0 (2018-07-02)

  • Add ability to specify alternative user_model for tracking (gh-371)
  • Add util function bulk_create_with_history to allow bulk_create with history saved (gh-412)

2.1.1 (2018-06-15)

  • Fixed out-of-memory exception when running populate_history management command (gh-408)
  • Fix TypeError on populate_history if excluded_fields are specified (gh-410)

2.1.0 (2018-06-04)

  • Add ability to specify custom history_reason field (gh-379)
  • Add ability to specify custom history_id field (gh-368)
  • Add HistoricalRecord instance properties prev_record and next_record (gh-365)
  • Can set admin methods as attributes on object history change list template (gh-390)
  • Fixed compatibility of >= 2.0 versions with old-style middleware (gh-369)

2.0 (2018-04-05)

  • Added Django 2.0 support (gh-330)
  • Dropped support for Django<=1.10 (gh-356)
  • Fix bug where history_view ignored user permissions (gh-361)
  • Fixed HistoryRequestMiddleware which hadn’t been working for Django>1.9 (gh-364)

1.9.1 (2018-03-30)

  • Use get_queryset rather than model.objects in history_view. (gh-303)
  • Change ugettext calls in models.py to ugettext_lazy
  • Resolve issue where model references itself (gh-278)
  • Fix issue with tracking an inherited model (abstract class) (gh-269)
  • Fix history detail view on django-admin for abstract models (gh-308)
  • Dropped support for Django<=1.6 and Python 3.3 (gh-292)

1.9.0 (2017-06-11)

  • Add --batchsize option to the populate_history management command. (gh-231)
  • Add ability to show specific attributes in admin history list view. (gh-256)
  • Add Brazilian Portuguese translation file. (gh-279)
  • Fix locale file packaging issue. (gh-280)
  • Add ability to specify reason for history change. (gh-275)
  • Test against Django 1.11 and Python 3.6. (gh-276)
  • Add excluded_fields option to exclude fields from history. (gh-274)

1.8.2 (2017-01-19)

  • Add Polish locale.
  • Add Django 1.10 support.

1.8.1 (2016-03-19)

  • Clear the threadlocal request object when processing the response to prevent test interactions. (gh-213)

1.8.0 (2016-02-02)

  • History tracking can be inherited by passing inherit=True. (gh-63)

1.7.0 (2015-12-02)

  • Add ability to list history in admin when the object instance is deleted. (gh-72)
  • Add ability to change history through the admin. (Enabled with the SIMPLE_HISTORY_EDIT setting.)
  • Add Django 1.9 support.
  • Support for custom tables names. (gh-196)

1.6.3 (2015-07-30)

  • Respect to_field and db_column parameters (gh-182)

1.6.2 (2015-07-04)

  • Use app loading system and fix deprecation warnings on Django 1.8 (gh-172)
  • Update Landscape configuration

1.6.1 (2015-04-21)

  • Fix OneToOneField transformation for historical models (gh-166)
  • Disable cascading deletes from related models to historical models
  • Fix restoring historical instances with missing one-to-one relations (gh-162)

1.6.0 (2015-04-16)

  • Add support for Django 1.8+
  • Deprecated use of CustomForeignKeyField (to be removed)
  • Remove default reverse accessor to auth.User for historical models (gh-121)

1.5.4 (2015-01-03)

  • Fix a bug when models have a ForeignKey with primary_key=True
  • Do NOT delete the history elements when a user is deleted.
  • Add support for latest
  • Allow setting a reason for change. [using option changeReason]

1.5.3 (2014-11-18)

  • Fix migrations while using order_with_respsect_to (gh-140)
  • Fix migrations using south
  • Allow history accessor class to be overridden in register()

1.5.2 (2014-10-15)

  • Additional fix for migrations (gh-128)

1.5.1 (2014-10-13)

  • Removed some incompatibilities with non-default admin sites (gh-92)
  • Fixed error caused by HistoryRequestMiddleware during anonymous requests (gh-115 fixes gh-114)
  • Added workaround for clashing related historical accessors on User (gh-121)
  • Added support for MongoDB AutoField (gh-125)
  • Fixed CustomForeignKeyField errors with 1.7 migrations (gh-126 fixes gh-124)

1.5.0 (2014-08-17)

  • Extended availability of the as_of method to models as well as instances.
  • Allow history_user on historical objects to be set by middleware.
  • Fixed error that occurs when a foreign key is designated using just the name of the model.
  • Drop Django 1.3 support

1.4.0 (2014-06-29)

  • Fixed error that occurs when models have a foreign key pointing to a one to one field.
  • Fix bug when model verbose_name uses unicode (gh-76)
  • Allow non-integer foreign keys
  • Allow foreign keys referencing the name of the model as a string
  • Added the ability to specify a custom history_date
  • Note that simple_history should be added to INSTALLED_APPS (gh-94 fixes gh-69)
  • Properly handle primary key escaping in admin URLs (gh-96 fixes gh-81)
  • Add support for new app loading (Django 1.7+)
  • Allow specifying custom base classes for historical models (gh-98)

1.3.0 (2013-05-17)

  • Fixed bug when using django-simple-history on nested models package
  • Allow history table to be formatted correctly with django-admin-bootstrap
  • Disallow calling simple_history.register twice on the same model
  • Added Python 3 support
  • Added support for custom user model (Django 1.5+)

1.2.3 (2013-04-22)

  • Fixed packaging bug: added admin template files to PyPI package

1.2.1 (2013-04-22)

  • Added tests
  • Added history view/revert feature in admin interface
  • Various fixes and improvements

Oct 22, 2010

  • Merged setup.py from Klaas van Schelven - Thanks!

Feb 21, 2010

  • Initial project creation, with changes to support ForeignKey relations.