django.git/django/db/models/init.py, branch 4.2.29

Refs #33476 -- Reformatted code with Black.

2022-02-07T19:37:05Z

Fixed #12990, Refs #27694 -- Added JSONField model field.

2020-05-08T05:23:31Z

Thanks to Adam Johnson, Carlton Gibson, Mariusz Felisiak, and Raphael Michel for mentoring this Google Summer of Code 2019 project and everyone else who helped with the patch. Special thanks to Mads Jensen, Nick Pope, and Simon Charette for extensive reviews. Co-authored-by: Mariusz Felisiak

Simplified imports from django.db and django.contrib.gis.db.

2020-02-04T12:20:06Z

Fixed #27272 -- Added an on_delete RESTRICT handler to allow cascading deletions while protecting direct ones.

2019-11-19T09:55:05Z

Fixed #27910 -- Added enumeration helpers for use in Field.choices.

2019-09-04T12:42:49Z

These classes can serve as a base class for user enums, supporting translatable human-readable names, or names automatically inferred from the enum member name. Additional properties make it easy to access the list of names, values and display labels. Thanks to the following for ideas and reviews: Carlton Gibson, Fran Hrženjak, Ian Foote, Mariusz Felisiak, Shai Berger. Co-authored-by: Shai Berger Co-authored-by: Nick Pope Co-authored-by: Mariusz Felisiak

Fixed #11964 -- Added support for database check constraints.

2018-07-10T19:32:33Z

Refs #18974 -- Removed @models.permalink() decorator per deprecation timeline.

2017-09-22T16:51:18Z

Fixed #27332 -- Added FilteredRelation API for conditional join (ON clause) support.

2017-09-22T15:53:17Z

Thanks Anssi Kääriäinen for contributing to the patch.

Fixed #26608 -- Added support for window expressions (OVER clause).

2017-09-18T13:42:29Z

Thanks Josh Smeaton, Mariusz Felisiak, Sergey Fedoseev, Simon Charettes, Adam Chainz/Johnson and Tim Graham for comments and reviews and Jamie Cockburn for initial patch.

Refs #18974 -- Added stacklevel for permalink() deprecation.

2017-03-28T21:58:10Z

django.git/django/db/models/__init__.py, branch 4.2.29