django.git/tests/model_fields, branch main

Fixed #35870 -- Made blank choice label in forms more accessible.

2026-04-22T21:06:29Z

Added new constant django.db.models.fields.BLANK_CHOICE_LABEL for an accessible and translatable blank choice label in forms. Deprecated django.db.models.fields.BLANK_CHOICE_DASH constant. Added the immediately deprecated transitional setting USE_BLANK_CHOICE_DASH. Co-Authored-By: Marijke Luttekes

Refs #36494 -- Prevented crash in JSONField numeric lookups with expressions.

2026-03-24T21:54:02Z

Fixed #36906 -- Handled coalescing JSON-primitive strings and JSON values on Oracle.

2026-03-16T15:53:25Z

Fixed #36727 -- Deprecated Field.get_placeholder in favor of get_placeholder_sql.

2026-03-13T00:01:02Z

The lack of ability of the get_placeholder call chain to return SQL and parameters separated so they can be mogrified by the backend at execution time forced implementations to dangerously interpolate potentially user controlled values. The get_placeholder_sql name was chosen due to its proximity to the previous method, but other options such as Field.as_sql were considered but ultimately rejected due to its different input signature compared to Expression.as_sql that might have lead to confusion. There is a lot of overlap between what Field.get_db_prep_value and get_placeholder_sql do but folding the latter in the former would require changing its return signature to return expression which is a way more invasive change than what is proposed here. Given we always call get_db_prep_value it might still be an avenue worth exploring in the future to offer a publicly documented interface to allow field to take an active part in the compilation chain. Thanks Jacob for the review.

Fixed #36847 -- Ensured auto_now_add fields are set on pre_save().

2026-01-29T13:11:33Z

Regression in 94680437a45a71c70ca8bd2e68b72aa1e2eff337. Refs #27222. During INSERT operations, `field.pre_save()` is called to prepare values for db insertion. The `add` param must be `True` for `auto_now_add` fields to be populated. The regression commit passed `False`, causing `auto_now_add` fields to remain `None` when used by other fields, such as `upload_to` callables. Thanks Ran Benita for the report.

Fixed #36233 -- Avoided quantizing integers stored in DecimalField on SQLite.

2026-01-28T22:04:39Z

Co-authored-by: Simon Charette Co-authored-by: Jacob Walls

Refs #36806 -- Removed unnecessary null=True from GeneratedField in test models.

2025-12-23T01:38:55Z

Test coverage is preserved because the tests only verify that generated fields can produce NULL values when the source field is nullable. This addresses system check warnings in the test suite after 6025eab3c509b4de922117e16866bbfe0ee99aa6.

Fixed #36508 -- Interpreted iexact=None on KeyTransforms as exact=None.

2025-12-22T19:20:07Z

Thanks Jacob Walls for the report.

Replaced per-object create() calls with bulk_create in tests/model_fields/test_jsonfield.py