해결됨) insert or update on table "django_admin_log" violates foreign key

(2024.10.10. 수정됨.)

문제 상황

장고 관리자 페이지에서 게시물의 내용을 변경하려는데 에러가 발생합니다.

django.db.utils.IntegrityError: insert or update on table "django_admin_log" violates foreign key constraint "django_admin_log_user_id_********_fk_auth_user_id"
DETAIL:  Key (user_id)=(1) is not present in table "auth_user".

auth_user 테이블을 참조하는 것 같은데, 저는 별도로 작성한 User Model을 사용하며, 해당 모델을 settings.py에서 AUTH_USER_MODEL을 선언하여 사용하고 있습니다.

전체 에러 코드

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/contrib/admin/options.py", line 716, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/utils/decorators.py", line 188, in _view_wrapper
    result = _process_exception(request, e)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/utils/decorators.py", line 186, in _view_wrapper
    response = view_func(request, *args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/views/decorators/cache.py", line 80, in _view_wrapper
    response = view_func(request, *args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/contrib/admin/sites.py", line 240, in inner
    return view(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/contrib/admin/options.py", line 1948, in change_view
    return self.changeform_view(request, object_id, form_url, extra_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/utils/decorators.py", line 48, in _wrapper
    return bound_method(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/utils/decorators.py", line 188, in _view_wrapper
    result = _process_exception(request, e)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/utils/decorators.py", line 186, in _view_wrapper
    response = view_func(request, *args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/contrib/admin/options.py", line 1804, in changeform_view
    return self._changeform_view(request, object_id, form_url, extra_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/contrib/admin/options.py", line 1864, in _changeform_view
    self.log_change(request, new_object, change_message)
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/contrib/admin/options.py", line 967, in log_change
    return LogEntry.objects.log_action(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/contrib/admin/models.py", line 38, in log_action
    return self.model.objects.create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/manager.py", line 87, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/query.py", line 679, in create
    obj.save(force_insert=True, using=self.db)
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/base.py", line 822, in save
    self.save_base(
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/base.py", line 909, in save_base
    updated = self._save_table(
              ^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/base.py", line 1067, in _save_table
    results = self._do_insert(
              ^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/base.py", line 1108, in _do_insert
    return manager._insert(
           ^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/manager.py", line 87, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/query.py", line 1847, in _insert
    return query.get_compiler(using=using).execute_sql(returning_fields)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/models/sql/compiler.py", line 1823, in execute_sql
    cursor.execute(sql, params)
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/backends/utils.py", line 122, in execute
    return super().execute(sql, params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/backends/utils.py", line 79, in execute
    return self._execute_with_wrappers(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/backends/utils.py", line 92, in _execute_with_wrappers
    return executor(sql, params, many, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/backends/utils.py", line 100, in _execute
    with self.db.wrap_database_errors:
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/utils.py", line 91, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "/home/ubuntu/django/lib/python3.12/site-packages/django/db/backends/utils.py", line 105, in _execute
    return self.cursor.execute(sql, params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
django.db.utils.IntegrityError: insert or update on table "django_admin_log" violates foreign key constraint "django_admin_log_user_id_********_fk_auth_user_id"
DETAIL:  Key (user_id)=(1) is not present in table "auth_user".

댓글 (2개)

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[글쓴이] 하얀설표

2024.10.10. 15:29

(2024.10.10. 수정됨)

질문자 채택

장고 공식 문서에서 프로젝트 생성 이후에 AUTH_USER_MODEL을 변경하는 것은 많은 문제를 야기할 수 있다고 경고하고 있습니다.

https://docs.djangoproject.com/en/dev/topics/auth/customizing/#changing-to-a-custom-user-model-mid-project

해당 문제는 장고 프로젝트를 생성할 당시 AUTH_USER_MODEL과 현재 적용 중인 AUTH_USER_MODEL이 다르기 때문에 발생하는 문제입니다.
초기에 AUTH_USER_MODEL을 선언하지 않았다면 django_admin_log의 user_id 항목이 auth_user 테이블을 참조하도록 설정되어 database를 생성하게 됩니다.

이 문제를 해결하는 방법에는 여러 방법들이 있겠지만, django_admin_log 테이블을 삭제하고 다시 생성하는 것으로 문제를 해결할 수 있습니다.

참고 링크 : https://stackoverflow.com/questions/70274885/insert-or-update-on-table-django-admin-log-violates-foreign-key-constraint

장고 프로젝트의 마이그레이션을 최신으로 유지합니다.
```
> python manage.py makemigrations
> python manage.py migrate
```
장고 프로젝트에서 사용하는 db를 열어 "django_admin_log"을 삭제합니다.
--fake zero 옵션을 이용해 admin 마이그레이션을 해제한 다음, --fake-initial 명령으로 django_admin_log 테이블을 생성합니다.
```
> python manage.py migrate --fake admin zero
> python manage.py migrate --fake-initial
```
장고 프로젝트를 재실행합니다.

위 과정을 거친다면 문제없이 관리자 페이지를 이용할 수 있게 됩니다.
단, 이전에 관리자 페이지에서 행한 기록들이 제거되므로 주의해주세요.

공감 : 0

[글쓴이] 하얀설표

2024.10.10. 15:31

To. "하얀설표"

(2024.10.10. 수정됨)

질문자 채택

SQLite 또는 psql(PostgreSQL)을 사용하는 경우 테이블 삭제 방법은 다음과 같습니다.

터미널에서 psql 테이블을 삭제하는 방법

> \connect {database 이름} # django_admin_log 테이블이 있는 db로 이동
> \dt # 테이블 목록 조회
> DROP TABLE django_admin_log; # django_admin_log 테이블 삭제

pgAdmin(PostgreSQL)을 사용하는 경우
https://www.pgadmin.org/
DB Browser(SQlite)를 사용하는 경우
https://sqlitebrowser.org/

공감 : 0