Use FacilityUser instead of AUTH_USER_MODEL in migrations

[jredrejo]

Summary

Using settings.AUTH_USER_MODEL breaks migrations when using kolibri in context where this model points to something different than FacilityUser. For example, PortalUser in KDP

References

For the future, any time migrations are created that relate to the user model, we should ensure that they point to FacilityUser. When changing AUTH_USER_MODEL, we may not want the kolibri models to be used for this new user type.

Reviewer guidance

Migrations should continue working fine

Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• Critical user journeys are covered by Gherkin stories
• Critical and brittle code paths are covered by unit tests

PR process

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
• If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')
• If this is an important user-facing change, PR or related issue has a 'changelog' label
• If this includes an internal dependency change, a link to the diff is provided

Reviewer checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[github-actions]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.16.1.dev0_git.20240313163013.pex
Windows Installer (EXE)	kolibri-0.16.1.dev0+git.20240313163013-unsigned.exe
Debian Package	kolibri_0.16.1.dev0+git.20240313163013-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.16.1.dev0+git.20240313163013-0.4.0.dmg
Android Package (APK)	kolibri-0.16.1.dev0+git.20240313163013-0.1.0-debug.apk
TAR file	kolibri-0.16.1.dev0+git.20240313163013.tar.gz
WHL file	kolibri-0.16.1.dev0+git.20240313163013-py2.py3-none-any.whl

[bjester]

The changes make sense to me. My only worry is whether this will affect Kolibri upgrades when its released. I assume this will cause some pain to rollout on KDP?

[jredrejo]

The changes make sense to me. My only worry is whether this will affect Kolibri upgrades when its released. I assume this will cause some pain to rollout on KDP?

probably, we'll test it in staging when the new kolibri release comes