No migrations to apply 発生 - hoshikuzucsのブログ

1) PyCharm から migrate を実行すると No migrations to apply が発生する。

 No migrations to apply.
 Your models in app(s): 'account' have changes that are not yet reflected 
in a migration, and so won't be applied.

2) Macのターミナルから showmigrations を実行してみた。

python manage.py showmigrations

 raise ImproperlyConfigured("settings.DATABASES is improperly configured. "
django.core.exceptions.ImproperlyConfigured: settings.DATABASES is improperly 
configured. Please supply the ENGINE value. Check settings documentation for more 
details.

ということで、DB設定が不適切ということで怒られました。

settings.DATABASES is improperly configured. Please supply the ENGINE value.

settings.py(本件ではsettings_common.py)でDBの設定は下記のとおり。手詰まり。

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'private_diary',
        'USER': os.environ.get('DB_USER'),
        'PASSWORD': os.environ.get('DB_PASSWORD'),
        'HOST': 'localhost',
        'PORT': '',
    }
}

3) エラーメッセージの指示に従って、makemigrations をPyCharm で実行してみる。

OKが出たが、書籍の内容とは異なる。 (0001, 0002 が終わって 0003まで進んだってこと？）

/Users/y50xave/venv_private_diary/bin/python 
/Users/y50xave/venv_private_diary/private_diary/manage.py makemigrations
Migrations for 'account':
 /Users/y50xave/venv_private_diary/lib/python3.8/site-packages/allauth/account/
migrations/0003_auto_20211107_0118.py
 - Alter field id on emailaddress
 - Alter field id on emailconfirmation

Process finished with exit code 0

/Users/y50xave/venv_private_diary/bin/python /Users/y50xave/venv_private_diary/
private_diary/manage.py migrate
Operations to perform:
 Apply all migrations: account, accounts, admin, auth, contenttypes, sessions, sites
Running migrations:
 Applying account.0003_auto_20211107_0118... OK

Process finished with exit code 0

正常性確認ってどうすればよいのだろう。

4) DB

エラーが出ているのだから DBには反映されていない？？

private_diary=# \dt;
 List of relations
 Schema | Name | Type | Owner 
--------+--------------------------------------+-------+---------
 public | account_emailaddress | table | y50xave
 public | account_emailconfirmation | table | y50xave
 public | accounts_customuser | table | y50xave
 public | accounts_customuser_groups | table | y50xave
 public | accounts_customuser_user_permissions | table | y50xave
 public | auth_group | table | y50xave
 public | auth_group_permissions | table | y50xave
 public | auth_permission | table | y50xave
 public | django_admin_log | table | y50xave
 public | django_content_type | table | y50xave
 public | django_migrations | table | y50xave
 public | django_session | table | y50xave
 public | django_site | table | y50xave
(13 rows)

private_diary=# select * from django_migrations
private_diary-# select * from django_admin_log
private_diary-# select * from django_session