Summary

Fix issues when the default id field is BigAutoField.

Review Request #14747 — Created Dec. 23, 2025 and updated Dec. 29, 2025, 9:48 a.m.

Information

Owner

david

Repository

Django Evolution

Branch

master

Bugs

Depends On

Reviewers

Groups

django-evolution

People

Description

Django 6.0 changes the default type for automatically-added id fields to
use BigAutoField instead of AutoField. This change adds some compat
utilities to detect this, and updates tests to reflect the new types
that are used in this situation.

Testing Done

Ran unit tests.

Commits

Summary	ID
Fix issues when the default id field is BigAutoField. Django 6.0 changes the default type for automatically-added id fields to use `BigAutoField` instead of `AutoField`. This change adds some compat utilities to detect this, and updates tests to reflect the new types that are used in this situation. Testing Done: Ran unit tests.	yrsznrxrxrkustokpsrwtrukxmpnoomz

Issues

Description	From	Last Updated
Since we're supporting Python 3 only now, can you add typing for this?	chipx86	Dec. 29, 2025, 9:39 a.m.
Same here.	chipx86	Dec. 29, 2025, 9:39 a.m.
Somewhat food for thought here. Every time we call this, we do an import, and the results really aren't likely …	chipx86	Dec. 29, 2025, 9:46 a.m.
Two blank lines here.	chipx86	Dec. 29, 2025, 9:40 a.m.
This got indented incorrectly. Same with a whole bunch below.	chipx86	Dec. 29, 2025, 9:43 a.m.
To avoid visual alignment differences, which matter for string expectations, I'd like to keep each line in a multi-line string …	chipx86	Dec. 29, 2025, 9:43 a.m.

flake8 passed.

JSHint passed.

django_evolution/compat/models.py (Diff revision 1)

The issue has been dropped. Show all issues

Since we're supporting Python 3 only now, can you add typing for this?

david Dec. 29, 2025, 9:48 a.m.

I'm going to add type annotations in future changes. For this one I'd like to match the surrounding style.

django_evolution/compat/models.py (Diff revision 1)
The issue has been dropped. Show all issues
```
Same here.
```

django_evolution/compat/models.py (Diff revision 1)

The issue has been resolved. Show all issues

Somewhat food for thought here.

Every time we call this, we do an import, and the results really aren't likely to change. My first instinct is to just cache this result, and then clear it if we need to for testing purposes.

david Dec. 29, 2025, 9:48 a.m.

No existing tests need to clear this. I'll just wrap it in caching, and if we need to override for tests we can use a spy.

django_evolution/tests/db/postgresql.py (Diff revision 1)
The issue has been resolved. Show all issues
```
Two blank lines here.
```
django_evolution/tests/test_rename_field.py (Diff revision 1)
The issue has been resolved. Show all issues
```
This got indented incorrectly. Same with a whole bunch below.
```

django_evolution/tests/test_rename_field.py (Diff revision 1)

The issue has been resolved. Show all issues

To avoid visual alignment differences, which matter for string expectations, I'd like to keep each line in a multi-line string prefixed with f in these cases.

Commits:

	Summary	ID
	Fix issues when the default id field is BigAutoField. Django 6.0 changes the default type for automatically-added id fields to use `BigAutoField` instead of `AutoField`. This change adds some compat utilities to detect this, and updates tests to reflect the new types that are used in this situation. Testing Done: Ran unit tests.	yrsznrxrxrkustokpsrwtrukxmpnoomz
	Fix issues when the default id field is BigAutoField. Django 6.0 changes the default type for automatically-added id fields to use `BigAutoField` instead of `AutoField`. This change adds some compat utilities to detect this, and updates tests to reflect the new types that are used in this situation. Testing Done: Ran unit tests.	yrsznrxrxrkustokpsrwtrukxmpnoomz

Diff:

Revision 2 (+696 -500)

Show changes

	django_evolution/mock_models.py
	django_evolution/compat/models.py
	django_evolution/tests/test_rename_field.py
	django_evolution/tests/test_signature.py
	django_evolution/tests/db/mysql.py
	django_evolution/tests/db/postgresql.py
	django_evolution/tests/db/sqlite3.py

Checks run (2 succeeded)

flake8 passed.

JSHint passed.