django.git/django/db/models/fields/related.py, branch main

Fixed #36973 -- Made fields.E348 check detect further clashes between managers and related_names.

2026-04-02T19:54:23Z

Clashes were only detected for self-referential relationships, i.e. ForeignKey("self"). Refs #22977. Bug in 6888375c53476011754f778deabc6cdbfa327011. Thanks JaeHyuckSa for the thorough review!

Refs #21961 -- Added DatabaseFeatures.supports_on_delete_db_(cascade/null) feature flags.

2025-11-23T10:53:24Z

Needed on MongoDB. Co-Authored-By: Mariusz Felisiak

Fixed #21961 -- Added support for database-level delete options for ForeignKey.

2025-10-18T13:03:50Z

Thanks Simon Charette for pair programming. Co-authored-by: Nick Stefan Co-authored-by: Akash Kumar Sen <71623442+Akash-Kumar-Sen@users.noreply.github.com> Co-authored-by: Simon Charette

Fixed #35453 -- Made ManyToManyField.concrete False.

2025-09-22T13:52:22Z

ManyToManyField was already excluded from fields, concrete_fields, and local_concrete_fields in Options.

Fixed #36530 -- Extended fields.E347 to check for ManyToManyField involving CompositePrimaryKey on either side.

2025-08-05T11:34:40Z

Thanks to Jacob Walls for the report.

Refs #36500 -- Rewrapped long docstrings and block comments via a script.

2025-07-23T23:17:55Z

Rewrapped long docstrings and block comments to 79 characters + newline using script from https://github.com/medmunds/autofix-w505.

Fixed #22977 -- Added system check for clashing managers and reverse related fields.

2025-03-31T20:20:43Z

With thanks to Konrad Świat, Loïc Bistuer, Russell Keith-Magee, and Mariusz Felisiak. Co-authored-by: Mariusz Felisiak

Fixed #36239 -- Fixed a crash in ManyToManyField.through_fields check when to model is invalid.

2025-03-28T11:37:57Z

Signed-off-by: saJaeHyukc

Fixed #36061 -- Added migration support for ManyToManyField.through_fields.

2025-02-06T14:26:12Z

Added through_fields support to ManyToManyField.deconstruct. Thanks to Simon Charette for pointers and the review.

Refs #16055 -- Removed get_joining_columns()/get_reverse_joining_columns() methods per deprecation timeline.

2025-01-15T21:28:37Z