Pengecualian DjangoLink to this heading#

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

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

See get().

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.

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.

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

See get().

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

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.

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

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

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

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

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

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.

The RequestAborted exception is raised when a 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.

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().

Pengeculian Resolver404 dimunculkan dengan resolve() jika jalur dilewatkan ke resolve() tidak memetakan ke tampilan. Itu adalah sebuah subkelas dari django.http.Http404.

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

UnreadablePostError dimunculkan ketika pengguna membatalkan unggahan.

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

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