# Dokumentasi Django 5.2.8

# Pengecualian Django

Django raises some of its own exceptions as well as standard Python exceptions.

## Pengecualian Inti Django

Kelas-kelas pengecualian inti django ditentukan dalam `django.core.exceptions`.

### `AppRegistryNotReady`

exception AppRegistryNotReady

  This exception is raised when attempting to use models before the app loading process, which initializes the ORM, is complete.

### `ObjectDoesNotExist`

exception ObjectDoesNotExist

  The base class for `Model.DoesNotExist` exceptions. A `try/except` for `ObjectDoesNotExist` will catch `DoesNotExist` exceptions for all models.

  See `get()`.

### `ObjectNotUpdated`

New in Django 6.0.

exception ObjectNotUpdated

  The base class for `Model.NotUpdated` exceptions. A `try/except` for `ObjectNotUpdated` will catch `NotUpdated` exceptions for all models.

  See `save()`.

### `EmptyResultSet`

exception EmptyResultSet

  `EmptyResultSet` may be raised during query generation if a query won't return any results. Most Django projects won't encounter this exception, but it might be useful for implementing custom lookups and expressions.

### `FullResultSet`

exception FullResultSet

  `FullResultSet` may be raised during query generation if a query will match everything. Most Django projects won't encounter this exception, but it might be useful for implementing custom lookups and expressions.

### `FieldDoesNotExist`

exception FieldDoesNotExist

  The `FieldDoesNotExist` exception is raised by a model's `_meta.get_field()` method when the requested field does not exist on the model or on the model's parents.

### `MultipleObjectsReturned`

exception MultipleObjectsReturned

  The base class for `Model.MultipleObjectsReturned` exceptions. A `try/except` for `MultipleObjectsReturned` will catch `MultipleObjectsReturned` exceptions for all models.

  See `get()`.

### `SuspiciousOperation`

exception SuspiciousOperation

  The `SuspiciousOperation` exception is raised when a user has performed an operation that should be considered suspicious from a security perspective, such as tampering with a session cookie. Subclasses of `SuspiciousOperation` include:

  - `DisallowedHost`

  - `DisallowedModelAdminLookup`

  - `DisallowedModelAdminToField`

  - `DisallowedRedirect`

  - `InvalidSessionKey`

  - `RequestDataTooBig`

  - `SuspiciousFileOperation`

  - `SuspiciousMultipartForm`

  - `SuspiciousSession`

  - `TooManyFieldsSent`

  - `TooManyFilesSent`

  If a `SuspiciousOperation` exception reaches the ASGI/WSGI handler level it is logged at the `Error` level and results in a `HttpResponseBadRequest`. See the logging documentation for more information.

### `PermissionDenied`

exception PermissionDenied

  Pengecualian `PermissionDenied` dimunculkan ketika seorang pengguna tidak memiliki perizinan untuk melakukan tindakan diminta.

### `ViewDoesNotExist`

exception ViewDoesNotExist

  Pengecualian `ViewDoesNotExist` dimunculkan oleh `django.urls` ketika tampilan diminta tidak ada.

### `MiddlewareNotUsed`

exception MiddlewareNotUsed

  Pengecualian `MiddlewareNotUsed` dimunculkan ketika sebuah middleware tidak digunakan dalam konfigurasi peladen.

### `ImproperlyConfigured`

exception ImproperlyConfigured

  The `ImproperlyConfigured` exception is raised when Django is somehow improperly configured -- for example, if a value in `settings.py` is incorrect or unparseable.

### `FieldError`

exception FieldError

  Pengecualian `FieldError` dimunculkan ketika ada masalah dengan bidang model. Ini terjadi untuk beberapa alasan:

  - Sebuah bidang dalam sebuah model bertabrakan dengan sebuah bidang dari nama sama dari sebuah kelas dasar abstrak

  - Sebuah putaran tidak terbatasdisebutkan oleh pengurutan

  - Sebuah kata kunci tidak dapat diuraikan dari saringan prameter

  - Sebuah bidang tidak dapat ditentukan dari katakunci dalam parameter permintaan

  - Gabungan tidak diizinkan pada bidang tertentu

  - Nama bidang tidak sah

  - Sebuah permintaan mengandung argumen order_by tidak sah

### `ValidationError`

exception ValidationError

  The `ValidationError` exception is raised when data fails form or model field validation. For more information about validation, see Form and Field Validation, Model Field Validation and the Validator Reference.

#### `NON_FIELD_ERRORS`

NON_FIELD_ERRORS

`ValidationError`s that don't belong to a particular field in a form or model are classified as `NON_FIELD_ERRORS`. This constant is used as a key in dictionaries that otherwise map fields to their respective list of errors.

### `BadRequest`

exception BadRequest

  The `BadRequest` exception is raised when the request cannot be processed due to a client error. If a `BadRequest` exception reaches the ASGI/WSGI handler level it results in a `HttpResponseBadRequest`.

### `RequestAborted`

exception RequestAborted

  The `RequestAborted` exception is raised when an HTTP body being read in by the handler is cut off midstream and the client connection closes, or when the client does not send data and hits a timeout where the server closes the connection.

  It is internal to the HTTP handler modules and you are unlikely to see it elsewhere. If you are modifying HTTP handling code, you should raise this when you encounter an aborted request to make sure the socket is closed cleanly.

### `SynchronousOnlyOperation`

exception SynchronousOnlyOperation

  The `SynchronousOnlyOperation` exception is raised when code that is only allowed in synchronous Python code is called from an asynchronous context (a thread with a running asynchronous event loop). These parts of Django are generally heavily reliant on thread-safety to function and don't work correctly under coroutines sharing the same thread.

  If you are trying to call code that is synchronous-only from an asynchronous thread, then create a synchronous thread and call it in that. You can accomplish this is with `asgiref.sync.sync_to_async()`.

## Pengecualian Penyelesai URL

Pengecualian Penyelesai URL ditentukan dalam `django.urls`.

### `Resolver404`

exception Resolver404

  The `Resolver404` exception is raised by `resolve()` if the path passed to `resolve()` doesn't map to a view. It's a subclass of `django.http.Http404`.

### `NoReverseMatch`

exception NoReverseMatch

  Pengecualian `NoReverseMatch` dimunculkan dengan `django.urls` ketika URL cocok dalam URLconf anda tidak dapat dicirikan berdasarkan pada parameter disokong.

## Pengecualian Basisdata

Pengecualian basisdata mungkin diimpor dari `django.db`.

Django membungkus pengecualian basisdata standar sehingga kode Django anda mempunyai jaminan penerapan umum pada kelas-kelas ini.

exception Error

exception InterfaceError

exception DatabaseError

exception DataError

exception OperationalError

exception IntegrityError

exception InternalError

exception ProgrammingError

exception NotSupportedError

Pembungkus Django untuk pengecualian basisdata berperilaku tepatnya sama seperti pengecualian basisdata pokok. Lihat:pep:249, Spesifikasi API Basisdata Python v2.0, untuk informasi lebih jauh.

As per PEP 3134, a `__cause__` attribute is set with the original (underlying) database exception, allowing access to any additional information provided.

exception models.ProtectedError

Raised to prevent deletion of referenced objects when using `django.db.models.PROTECT`. `models.ProtectedError` is a subclass of `IntegrityError`.

exception models.RestrictedError

Raised to prevent deletion of referenced objects when using `django.db.models.RESTRICT`. `models.RestrictedError` is a subclass of `IntegrityError`.

## HTTP Exceptions

HTTP exceptions may be imported from `django.http`.

### `UnreadablePostError`

exception UnreadablePostError

  `UnreadablePostError` dimunculkan ketika pengguna membatalkan unggahan.

## Eksepsi Sesi

Eksepsi sesi ditentukan dalam `django.contrib.sessions.exceptions`.

### `SessionInterrupted`

exception SessionInterrupted

  `SessionInterrupted` is raised when a session is destroyed in a concurrent request. It's a subclass of `BadRequest`.

## Pengecualian Transaksi

Pengecualian transaksi ditentukan dalam `django.db.transaction`.

### `TransactionManagementError`

exception TransactionManagementError

  `TransactionManagementError` dimunculkan untuk apapun dan semua masalah terkait pada transaksi basisdata.

## Pengecualian Kerangka Kerja Percobaan

Pengecualian disediakan oleh paket `django.test`.

### `RedirectCycleError`

exception client.RedirectCycleError

  `RedirectCycleError` is raised when the test client detects a loop or an overly long chain of redirects.

## Pengecualian Python

Django raises built-in Python exceptions when appropriate as well. See the Python documentation for further information on the Built-in Exceptions.