oncall-engine/engine/apps/user_management
Vadim Stepanov b2f4ffb98a
apps.get_model -> import (#2619)
# What this PR does

Remove
[`apps.get_model`](https://docs.djangoproject.com/en/3.2/ref/applications/#django.apps.apps.get_model)
invocations and use inline `import` statements in places where models
are imported within functions/methods to avoid circular imports.

I believe `import` statements are more appropriate for most use cases as
they allow for better static code analysis & formatting, and solve the
issue of circular imports without being unnecessarily dynamic as
`apps.get_model`. With `import` statements, it's possible to:

- Jump to model definitions in most IDEs
- Automatically sort inline imports with `isort`
- Find import errors faster/easier (most IDEs highlight broken imports)
- Have more consistency across regular & inline imports when importing
models

This PR also adds a flake8 rule to ban imports of `django.apps.apps`, so
it's harder to use `apps.get_model` by mistake (it's possible to ignore
this rule by using `# noqa: I251`). The rule is not enforced on
directories with migration files, because `apps.get_model` is often used
to get a historical state of a model, which is useful when writing
migrations ([see this SO answer for more
details](https://stackoverflow.com/a/37769213)). So `apps.get_model` is
considered OK in migrations (even necessary in some cases).

## Checklist

- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
2023-07-25 09:43:23 +00:00
..
migrations mark manual_severity and resolution_note_ts columns on alertgroup table as deprecated (#2564) 2023-07-18 09:41:58 +00:00
models apps.get_model -> import (#2619) 2023-07-25 09:43:23 +00:00
subscription_strategy apps.get_model -> import (#2619) 2023-07-25 09:43:23 +00:00
tests remove SlackActionRecord model/table (#2201) 2023-06-13 10:56:06 +00:00
__init__.py World, meet OnCall! 2022-06-03 08:09:47 -06:00
admin.py World, meet OnCall! 2022-06-03 08:09:47 -06:00
apps.py Update ical event/user email matching to be case-insensitive 2022-10-20 16:12:41 -03:00
exceptions.py Org soft-delete (#1073) 2023-01-05 12:42:55 +08:00
middlewares.py Add organization moved exception to mobile app auth (#2422) 2023-07-05 06:11:56 +00:00
signals.py add several new database columns + emit two new Django signals (#1522) 2023-04-14 09:15:57 +02:00
sync.py apps.get_model -> import (#2619) 2023-07-25 09:43:23 +00:00
user_representative.py apps.get_model -> import (#2619) 2023-07-25 09:43:23 +00:00