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@ -0,0 +1,22 @@
# Documentation: https://github.com/probot/stale
# Number of days of inactivity before an issue becomes stale
daysUntilStale: 60
# Number of days of inactivity before a stale issue is closed
daysUntilClose: 7
# Comment to post when marking an issue as stale. Set to `false` to disable
markComment: >
This issue has been automatically marked as stale because it has not had
recent activity. It will be closed if no further activity occurs. Thank you
for your contributions.
# Comment to post when closing a stale issue. Set to `false` to disable
closeComment: false
# Limit the number of actions per hour, from 1-30. Default is 30
limitPerRun: 1
# Label to use when marking as stale
staleLabel: stale

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@ -21,18 +21,13 @@ jobs:
- '3.10'
steps:
- uses: actions/checkout@v2
- uses: actions/checkout@v3
- uses: actions/setup-python@v2
- uses: actions/setup-python@v3
with:
python-version: ${{ matrix.python-version }}
- uses: actions/cache@v2
with:
path: ~/.cache/pip
key: ${{ runner.os }}-pip-${{ hashFiles('requirements/*.txt') }}
restore-keys: |
${{ runner.os }}-pip-
cache: 'pip'
cache-dependency-path: 'requirements/*.txt'
- name: Upgrade packaging tools
run: python -m pip install --upgrade pip setuptools virtualenv wheel

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@ -1,3 +1,7 @@
# Contributing to REST framework
See the [Contributing guide in the documentation](https://www.django-rest-framework.org/community/contributing/).
At this point in it's lifespan we consider Django REST framework to be essentially feature-complete. We may accept pull requests that track the continued development of Django versions, but would prefer not to accept new features or code formatting changes.
Apart from minor documentation changes, the [GitHub discussions page](https://github.com/encode/django-rest-framework/discussions) should generally be your starting point. Please only raise an issue or pull request if you've been recommended to do so after discussion.
The [Contributing guide in the documentation](https://www.django-rest-framework.org/community/contributing/) gives some more information on our process and code of conduct.

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@ -21,14 +21,14 @@ The initial aim is to provide a single full-time position on REST framework.
[![][sentry-img]][sentry-url]
[![][stream-img]][stream-url]
[![][rollbar-img]][rollbar-url]
[![][esg-img]][esg-url]
[![][spacinov-img]][spacinov-url]
[![][retool-img]][retool-url]
[![][bitio-img]][bitio-url]
[![][posthog-img]][posthog-url]
[![][cryptapi-img]][cryptapi-url]
[![][fezto-img]][fezto-url]
Many thanks to all our [wonderful sponsors][sponsors], and in particular to our premium backers, [Sentry][sentry-url], [Stream][stream-url], [Rollbar][rollbar-url], [ESG][esg-url], [Retool][retool-url], [bit.io][bitio-url], [PostHog][posthog-url], and [CryptAPI][cryptapi-url].
Many thanks to all our [wonderful sponsors][sponsors], and in particular to our premium backers, [Sentry][sentry-url], [Stream][stream-url], [Spacinov][spacinov-url], [Retool][retool-url], [bit.io][bitio-url], [PostHog][posthog-url], [CryptAPI][cryptapi-url], and [FEZTO][fezto-url].
---
@ -55,7 +55,7 @@ There is a live example API for testing purposes, [available here][sandbox].
# Requirements
* Python (3.6, 3.7, 3.8, 3.9, 3.10)
* Django (2.2, 3.0, 3.1, 3.2, 4.0)
* Django (2.2, 3.0, 3.1, 3.2, 4.0, 4.1)
We **highly recommend** and only officially support the latest patch release of
each Python and Django series.
@ -67,11 +67,12 @@ Install using `pip`...
pip install djangorestframework
Add `'rest_framework'` to your `INSTALLED_APPS` setting.
INSTALLED_APPS = [
...
'rest_framework',
]
```python
INSTALLED_APPS = [
...
'rest_framework',
]
```
# Example
@ -193,21 +194,21 @@ Please see the [security policy][security-policy].
[sentry-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/sentry-readme.png
[stream-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/stream-readme.png
[rollbar-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/rollbar-readme.png
[esg-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/esg-readme.png
[spacinov-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/spacinov-readme.png
[retool-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/retool-readme.png
[bitio-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/bitio-readme.png
[posthog-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/posthog-readme.png
[cryptapi-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/cryptapi-readme.png
[fezto-img]: https://raw.githubusercontent.com/encode/django-rest-framework/master/docs/img/premium/fezto-readme.png
[sentry-url]: https://getsentry.com/welcome/
[stream-url]: https://getstream.io/?utm_source=DjangoRESTFramework&utm_medium=Webpage_Logo_Ad&utm_content=Developer&utm_campaign=DjangoRESTFramework_Jan2022_HomePage
[rollbar-url]: https://rollbar.com/?utm_source=django&utm_medium=sponsorship&utm_campaign=freetrial
[esg-url]: https://software.esg-usa.com/
[spacinov-url]: https://www.spacinov.com/
[retool-url]: https://retool.com/?utm_source=djangorest&utm_medium=sponsorship
[bitio-url]: https://bit.io/jobs?utm_source=DRF&utm_medium=sponsor&utm_campaign=DRF_sponsorship
[posthog-url]: https://posthog.com?utm_source=drf&utm_medium=sponsorship&utm_campaign=open-source-sponsorship
[cryptapi-url]: https://cryptapi.io
[fezto-url]: https://www.fezto.xyz/?utm_source=DjangoRESTFramework
[oauth1-section]: https://www.django-rest-framework.org/api-guide/authentication/#django-rest-framework-oauth
[oauth2-section]: https://www.django-rest-framework.org/api-guide/authentication/#django-oauth-toolkit

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@ -2,8 +2,8 @@
## Reporting a Vulnerability
If you believe you've found something in Django REST framework which has security implications, please **do not raise the issue in a public forum**.
Security issues are handled under the supervision of the [Django security team](https://www.djangoproject.com/foundation/teams/#security-team).
Send a description of the issue via email to [rest-framework-security@googlegroups.com][security-mail]. The project maintainers will then work with you to resolve any issues where required, prior to any public disclosure.
**Please report security issues by emailing security@djangoproject.com**.
[security-mail]: mailto:rest-framework-security@googlegroups.com
The project maintainers will then work with you to resolve any issues where required, prior to any public disclosure.

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@ -120,6 +120,14 @@ Unauthenticated responses that are denied permission will result in an `HTTP 401
## TokenAuthentication
---
**Note:** The token authentication provided by Django REST framework is a fairly simple implementation.
For an implementation which allows more than one token per user, has some tighter security implementation details, and supports token expiry, please see the [Django REST Knox][django-rest-knox] third party package.
---
This authentication scheme uses a simple token-based HTTP Authentication scheme. Token authentication is appropriate for client-server setups, such as native desktop and mobile clients.
To use the `TokenAuthentication` scheme you'll need to [configure the authentication classes](#setting-the-authentication-scheme) to include `TokenAuthentication`, and additionally include `rest_framework.authtoken` in your `INSTALLED_APPS` setting:
@ -129,11 +137,9 @@ To use the `TokenAuthentication` scheme you'll need to [configure the authentica
'rest_framework.authtoken'
]
---
Make sure to run `manage.py migrate` after changing your settings.
**Note:** Make sure to run `manage.py migrate` after changing your settings. The `rest_framework.authtoken` app provides Django database migrations.
---
The `rest_framework.authtoken` app provides Django database migrations.
You'll also need to create tokens for your users.
@ -146,7 +152,7 @@ For clients to authenticate, the token key should be included in the `Authorizat
Authorization: Token 9944b09199c62bcf9418ad846dd0e4bbdfc6ee4b
**Note:** If you want to use a different keyword in the header, such as `Bearer`, simply subclass `TokenAuthentication` and set the `keyword` class variable.
*If you want to use a different keyword in the header, such as `Bearer`, simply subclass `TokenAuthentication` and set the `keyword` class variable.*
If successfully authenticated, `TokenAuthentication` provides the following credentials.
@ -355,6 +361,10 @@ The following example will authenticate any incoming request as the user given b
The following third-party packages are also available.
## django-rest-knox
[Django-rest-knox][django-rest-knox] library provides models and views to handle token-based authentication in a more secure and extensible way than the built-in TokenAuthentication scheme - with Single Page Applications and Mobile clients in mind. It provides per-client tokens, and views to generate them when provided some other authentication (usually basic authentication), to delete the token (providing a server enforced logout) and to delete all tokens (logs out all clients that a user is logged into).
## Django OAuth Toolkit
The [Django OAuth Toolkit][django-oauth-toolkit] package provides OAuth 2.0 support and works with Python 3.4+. The package is maintained by [jazzband][jazzband] and uses the excellent [OAuthLib][oauthlib]. The package is well documented, and well supported and is currently our **recommended package for OAuth 2.0 support**.
@ -420,13 +430,9 @@ There are currently two forks of this project.
* [Django-rest-auth][django-rest-auth] is the original project, [but is not currently receiving updates](https://github.com/Tivix/django-rest-auth/issues/568).
* [Dj-rest-auth][dj-rest-auth] is a newer fork of the project.
## django-rest-framework-social-oauth2
## drf-social-oauth2
[Django-rest-framework-social-oauth2][django-rest-framework-social-oauth2] library provides an easy way to integrate social plugins (facebook, twitter, google, etc.) to your authentication system and an easy oauth2 setup. With this library, you will be able to authenticate users based on external tokens (e.g. facebook access token), convert these tokens to "in-house" oauth2 tokens and use and generate oauth2 tokens to authenticate your users.
## django-rest-knox
[Django-rest-knox][django-rest-knox] library provides models and views to handle token-based authentication in a more secure and extensible way than the built-in TokenAuthentication scheme - with Single Page Applications and Mobile clients in mind. It provides per-client tokens, and views to generate them when provided some other authentication (usually basic authentication), to delete the token (providing a server enforced logout) and to delete all tokens (logs out all clients that a user is logged into).
[Drf-social-oauth2][drf-social-oauth2] is a framework that helps you authenticate with major social oauth2 vendors, such as Facebook, Google, Twitter, Orcid, etc. It generates tokens in a JWTed way with an easy setup.
## drfpasswordless
@ -473,7 +479,7 @@ More information can be found in the [Documentation](https://django-rest-durin.r
[djoser]: https://github.com/sunscrapers/djoser
[django-rest-auth]: https://github.com/Tivix/django-rest-auth
[dj-rest-auth]: https://github.com/jazzband/dj-rest-auth
[django-rest-framework-social-oauth2]: https://github.com/PhilipGarnero/django-rest-framework-social-oauth2
[drf-social-oauth2]: https://github.com/wagnerdelima/drf-social-oauth2
[django-rest-knox]: https://github.com/James1345/django-rest-knox
[drfpasswordless]: https://github.com/aaronn/django-rest-framework-passwordless
[django-rest-authemail]: https://github.com/celiao/django-rest-authemail

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@ -260,6 +260,15 @@ Set as `handler400`:
handler400 = 'rest_framework.exceptions.bad_request'
# Third party packages
The following third-party packages are also available.
## DRF Standardized Errors
The [drf-standardized-errors][drf-standardized-errors] package provides an exception handler that generates the same format for all 4xx and 5xx responses. It is a drop-in replacement for the default exception handler and allows customizing the error response format without rewriting the whole exception handler. The standardized error response format is easier to document and easier to handle by API consumers.
[cite]: https://doughellmann.com/blog/2009/06/19/python-exception-handling-techniques/
[authentication]: authentication.md
[django-custom-error-views]: https://docs.djangoproject.com/en/dev/topics/http/views/#customizing-error-views
[drf-standardized-errors]: https://github.com/ghazi-git/drf-standardized-errors

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@ -42,7 +42,7 @@ Set to false if this field is not required to be present during deserialization.
Setting this to `False` also allows the object attribute or dictionary key to be omitted from output when serializing the instance. If the key is not present it will simply not be included in the output representation.
Defaults to `True`.
Defaults to `True`. If you're using [Model Serializer](https://www.django-rest-framework.org/api-guide/serializers/#modelserializer) default value will be `False` if you have specified `blank=True` or `default` or `null=True` at your field in your `Model`.
### `default`

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@ -19,7 +19,7 @@ Relational fields are used to represent model relationships. They can be applie
---
**Note:** REST Framework does not attempt to automatically optimize querysets passed to serializers in terms of `select_related` and `prefetch_related` since it would be too much magic. A serializer with a field spanning an orm relation through its source attribute could require an additional database hit to fetch related object from the database. It is the programmer's responsibility to optimize queries to avoid additional database hits which could occur while using such a serializer.
**Note:** REST Framework does not attempt to automatically optimize querysets passed to serializers in terms of `select_related` and `prefetch_related` since it would be too much magic. A serializer with a field spanning an orm relation through its source attribute could require an additional database hit to fetch related objects from the database. It is the programmer's responsibility to optimize queries to avoid additional database hits which could occur while using such a serializer.
For example, the following serializer would lead to a database hit each time evaluating the tracks field if it is not prefetched:

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@ -338,5 +338,5 @@ The [`DRF-extensions` package][drf-extensions] provides [routers][drf-extensions
[drf-extensions-nested-viewsets]: https://chibisov.github.io/drf-extensions/docs/#nested-routes
[drf-extensions-collection-level-controllers]: https://chibisov.github.io/drf-extensions/docs/#collection-level-controllers
[drf-extensions-customizable-endpoint-names]: https://chibisov.github.io/drf-extensions/docs/#controller-endpoint-name
[url-namespace-docs]: https://docs.djangoproject.com/en/1.11/topics/http/urls/#url-namespaces
[include-api-reference]: https://docs.djangoproject.com/en/2.0/ref/urls/#include
[url-namespace-docs]: https://docs.djangoproject.com/en/4.0/topics/http/urls/#url-namespaces
[include-api-reference]: https://docs.djangoproject.com/en/4.0/ref/urls/#include

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@ -165,7 +165,7 @@ In order to customize the top-level schema, subclass
as an argument to the `generateschema` command or `get_schema_view()` helper
function.
### get_schema(self, request)
### get_schema(self, request=None, public=False)
Returns a dictionary that represents the OpenAPI schema:
@ -313,6 +313,11 @@ Computes the component's name from the serializer.
You may see warnings if your API has duplicate component names. If so you can override `get_component_name()` or pass the `component_name` `__init__()` kwarg (see below) to provide different names.
#### `get_reference()`
Returns a reference to the serializer component. This may be useful if you override `get_schema()`.
#### `map_serializer()`
Maps serializers to their OpenAPI representations.

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@ -299,7 +299,7 @@ similar way as with `RequestsClient`.
# API Test cases
REST framework includes the following test case classes, that mirror the existing Django test case classes, but use `APIClient` instead of Django's default `Client`.
REST framework includes the following test case classes, that mirror the existing [Django's test case classes][provided_test_case_classes], but use `APIClient` instead of Django's default `Client`.
* `APISimpleTestCase`
* `APITransactionTestCase`
@ -413,5 +413,6 @@ For example, to add support for using `format='html'` in test requests, you migh
[client]: https://docs.djangoproject.com/en/stable/topics/testing/tools/#the-test-client
[requestfactory]: https://docs.djangoproject.com/en/stable/topics/testing/advanced/#django.test.client.RequestFactory
[configuration]: #configuration
[refresh_from_db_docs]: https://docs.djangoproject.com/en/1.11/ref/models/instances/#django.db.models.Model.refresh_from_db
[refresh_from_db_docs]: https://docs.djangoproject.com/en/stable/ref/models/instances/#django.db.models.Model.refresh_from_db
[session_objects]: https://requests.readthedocs.io/en/master/user/advanced/#session-objects
[provided_test_case_classes]: https://docs.djangoproject.com/en/stable/topics/testing/tools/#provided-test-case-classes

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@ -19,7 +19,9 @@ Multiple throttles can also be used if you want to impose both burst throttling
Throttles do not necessarily only refer to rate-limiting requests. For example a storage service might also need to throttle against bandwidth, and a paid data service might want to throttle against a certain number of a records being accessed.
**The application-level throttling that REST framework provides should not be considered a security measure or protection against brute forcing or denial-of-service attacks. Deliberately malicious actors will always be able to spoof IP origins, and application-level throttling is intended for implementing policies such as different business tiers and basic protections against service over-use.**
**The application-level throttling that REST framework provides should not be considered a security measure or protection against brute forcing or denial-of-service attacks. Deliberately malicious actors will always be able to spoof IP origins. In addition to this, the built-in throttling implementations are implemented using Django's cache framework, and use non-atomic operations to determine the request rate, which may sometimes result in some fuzziness.
The application-level throttling provided by REST framework is intended for implementing policies such as different business tiers and basic protections against service over-use.**
## How throttling is determined
@ -104,6 +106,12 @@ If you need to use a cache other than `'default'`, you can do so by creating a c
You'll need to remember to also set your custom throttle class in the `'DEFAULT_THROTTLE_CLASSES'` settings key, or using the `throttle_classes` view attribute.
## A note on concurrency
The built-in throttle implementations are open to [race conditions][race], so under high concurrency they may allow a few extra requests through.
If your project relies on guaranteeing the number of requests during concurrent requests, you will need to implement your own throttle class. See [issue #5181][gh5181] for more details.
---
# API Reference
@ -212,3 +220,5 @@ The following is an example of a rate throttle, that will randomly throttle 1 in
[identifying-clients]: http://oxpedia.org/wiki/index.php?title=AppSuite:Grizzly#Multiple_Proxies_in_front_of_the_cluster
[cache-setting]: https://docs.djangoproject.com/en/stable/ref/settings/#caches
[cache-docs]: https://docs.djangoproject.com/en/stable/topics/cache/#setting-up-the-cache
[gh5181]: https://github.com/encode/django-rest-framework/issues/5181
[race]: https://en.wikipedia.org/wiki/Race_condition#Data_race

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@ -6,6 +6,12 @@
There are many ways you can contribute to Django REST framework. We'd like it to be a community-led project, so please get involved and help shape the future of the project.
---
**Note**: At this point in it's lifespan we consider Django REST framework to be essentially feature-complete. We may accept pull requests that track the continued development of Django versions, but would prefer not to accept new features or code formatting changes.
---
## Community
The most important thing you can do to help push the REST framework project forward is to be actively involved wherever possible. Code contributions are often overvalued as being the primary way to get involved in a project, we don't believe that needs to be the case.
@ -26,14 +32,13 @@ The [Django code of conduct][code-of-conduct] gives a fuller set of guidelines f
# Issues
It's really helpful if you can make sure to address issues on the correct channel. Usage questions should be directed to the [discussion group][google-group]. Feature requests, bug reports and other issues should be raised on the GitHub [issue tracker][issues].
Our contribution process is that the [GitHub discussions page](https://github.com/encode/django-rest-framework/discussions) should generally be your starting point. Please only raise an issue or pull request if you've been recommended to do so after discussion.
Some tips on good issue reporting:
Some tips on good potential issue reporting:
* When describing issues try to phrase your ticket in terms of the *behavior* you think needs changing rather than the *code* you think need changing.
* Search the issue list first for related items, and make sure you're running the latest version of REST framework before reporting an issue.
* If reporting a bug, then try to include a pull request with a failing test case. This will help us quickly identify if there is a valid issue, and make sure that it gets fixed more quickly if there is one.
* Feature requests will often be closed with a recommendation that they be implemented outside of the core REST framework library. Keeping new feature requests implemented as third party libraries allows us to keep down the maintenance overhead of REST framework, so that the focus can be on continued stability, bugfixes, and great documentation.
* Search the GitHub project page for related items, and make sure you're running the latest version of REST framework before reporting an issue.
* Feature requests will often be closed with a recommendation that they be implemented outside of the core REST framework library. Keeping new feature requests implemented as third party libraries allows us to keep down the maintenance overhead of REST framework, so that the focus can be on continued stability, bugfixes, and great documentation. At this point in it's lifespan we consider Django REST framework to be essentially feature-complete.
* Closing an issue doesn't necessarily mean the end of a discussion. If you believe your issue has been closed incorrectly, explain why and we'll consider if it needs to be reopened.
## Triaging issues

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@ -148,6 +148,8 @@ To submit new content, [open an issue][drf-create-issue] or [create a pull reque
* [django-elasticsearch-dsl-drf][django-elasticsearch-dsl-drf] - Integrate Elasticsearch DSL with Django REST framework. Package provides views, serializers, filter backends, pagination and other handy add-ons.
* [django-api-client][django-api-client] - DRF client that groups the Endpoint response, for use in CBVs and FBV as if you were working with Django's Native Models..
* [fast-drf] - A model based library for making API development faster and easier.
* [django-requestlogs] - Providing middleware and other helpers for audit logging for REST framework.
* [drf-standardized-errors][drf-standardized-errors] - DRF exception handler to standardize error responses for all API endpoints.
[cite]: http://www.software-ecosystems.com/Software_Ecosystems/Ecosystems.html
[cookiecutter]: https://github.com/jpadilla/cookiecutter-django-rest-framework
@ -237,3 +239,5 @@ To submit new content, [open an issue][drf-create-issue] or [create a pull reque
[graphwrap]: https://github.com/PaulGilmartin/graph_wrap
[rest-framework-actions]: https://github.com/AlexisMunera98/rest-framework-actions
[fast-drf]: https://github.com/iashraful/fast-drf
[django-requestlogs]: https://github.com/Raekkeri/django-requestlogs
[drf-standardized-errors]: https://github.com/ghazi-git/drf-standardized-errors

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@ -68,16 +68,16 @@ continued development by **[signing up for a paid plan][funding]**.
<ul class="premium-promo promo">
<li><a href="https://getsentry.com/welcome/" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/sentry130.png)">Sentry</a></li>
<li><a href="https://getstream.io/?utm_source=DjangoRESTFramework&utm_medium=Webpage_Logo_Ad&utm_content=Developer&utm_campaign=DjangoRESTFramework_Jan2022_HomePage" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/stream-130.png)">Stream</a></li>
<li><a href="https://software.esg-usa.com" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/esg-new-logo.png)">ESG</a></li>
<li><a href="https://rollbar.com" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/rollbar2.png)">Rollbar</a></li>
<li><a href="https://www.spacinov.com/" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/spacinov.png)">Spacinov</a></li>
<li><a href="https://retool.com/?utm_source=djangorest&utm_medium=sponsorship" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/retool-sidebar.png)">Retool</a></li>
<li><a href="https://bit.io/jobs?utm_source=DRF&utm_medium=sponsor&utm_campaign=DRF_sponsorship" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/bitio_logo_gold_background.png)">bit.io</a></li>
<li><a href="https://posthog.com?utm_source=DRF&utm_medium=sponsor&utm_campaign=DRF_sponsorship" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/135996800-d49fe024-32d9-441a-98d9-4c7596287a67.png)">PostHog</a></li>
<li><a href="https://cryptapi.io" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/cryptapi.png)">CryptAPI</a></li>
<li><a href="https://www.fezto.xyz/?utm_source=DjangoRESTFramework" style="background-image: url(https://fund-rest-framework.s3.amazonaws.com/fezto.png)">FEZTO</a></li>
</ul>
<div style="clear: both; padding-bottom: 20px;"></div>
*Many thanks to all our [wonderful sponsors][sponsors], and in particular to our premium backers, [Sentry](https://getsentry.com/welcome/), [Stream](https://getstream.io/?utm_source=DjangoRESTFramework&utm_medium=Webpage_Logo_Ad&utm_content=Developer&utm_campaign=DjangoRESTFramework_Jan2022_HomePage), [ESG](https://software.esg-usa.com/), [Rollbar](https://rollbar.com/?utm_source=django&utm_medium=sponsorship&utm_campaign=freetrial), [Cadre](https://cadre.com), [Kloudless](https://hubs.ly/H0f30Lf0), [Lights On Software](https://lightsonsoftware.com), [Retool](https://retool.com/?utm_source=djangorest&utm_medium=sponsorship), [bit.io](https://bit.io/jobs?utm_source=DRF&utm_medium=sponsor&utm_campaign=DRF_sponsorship), [PostHog](https://posthog.com?utm_source=DRF&utm_medium=sponsor&utm_campaign=DRF_sponsorship), and [CryptAPI](https://cryptapi.io).*
*Many thanks to all our [wonderful sponsors][sponsors], and in particular to our premium backers, [Sentry](https://getsentry.com/welcome/), [Stream](https://getstream.io/?utm_source=DjangoRESTFramework&utm_medium=Webpage_Logo_Ad&utm_content=Developer&utm_campaign=DjangoRESTFramework_Jan2022_HomePage), [Spacinov](https://www.spacinov.com/), [Retool](https://retool.com/?utm_source=djangorest&utm_medium=sponsorship), [bit.io](https://bit.io/jobs?utm_source=DRF&utm_medium=sponsor&utm_campaign=DRF_sponsorship), [PostHog](https://posthog.com?utm_source=DRF&utm_medium=sponsor&utm_campaign=DRF_sponsorship), [CryptAPI](https://cryptapi.io), and [FEZTO](https://www.fezto.xyz/?utm_source=DjangoRESTFramework).*
---
@ -86,7 +86,7 @@ continued development by **[signing up for a paid plan][funding]**.
REST framework requires the following:
* Python (3.6, 3.7, 3.8, 3.9, 3.10)
* Django (2.2, 3.0, 3.1, 3.2, 4.0)
* Django (2.2, 3.0, 3.1, 3.2, 4.0, 4.1)
We **highly recommend** and only officially support the latest patch release of
each Python and Django series.
@ -194,9 +194,11 @@ For priority support please sign up for a [professional or premium sponsorship p
## Security
If you believe youve found something in Django REST framework which has security implications, please **do not raise the issue in a public forum**.
Security issues are handled under the supervision of the [Django security team](https://www.djangoproject.com/foundation/teams/#security-team).
Send a description of the issue via email to [rest-framework-security@googlegroups.com][security-mail]. The project maintainers will then work with you to resolve any issues where required, prior to any public disclosure.
**Please report security issues by emailing security@djangoproject.com**.
The project maintainers will then work with you to resolve any issues where required, prior to any public disclosure.
## License

View File

@ -112,8 +112,8 @@ Here's our re-wired `snippets/urls.py` file.
# Create a router and register our viewsets with it.
router = DefaultRouter()
router.register(r'snippets', views.SnippetViewSet, basename="snippets")
router.register(r'users', views.UserViewSet, basename="users")
router.register(r'snippets', views.SnippetViewSet, basename="snippet")
router.register(r'users', views.UserViewSet, basename="user")
# The API URLs are now determined automatically by the router.
urlpatterns = [

View File

@ -1,2 +1,3 @@
# MkDocs to build our documentation.
mkdocs>=1.1.2,<1.2
jinja2>=2.10,<3.1.0 # contextfilter has been renamed

View File

@ -27,7 +27,6 @@ from django.utils.duration import duration_string
from django.utils.encoding import is_protected_type, smart_str
from django.utils.formats import localize_input, sanitize_separators
from django.utils.ipv6 import clean_ipv6_address
from django.utils.timezone import utc
from django.utils.translation import gettext_lazy as _
from pytz.exceptions import InvalidTimeError
@ -63,6 +62,9 @@ def is_simple_callable(obj):
"""
True if the object is a callable that takes no arguments.
"""
if not callable(obj):
return False
# Bail early since we cannot inspect built-in function signatures.
if inspect.isbuiltin(obj):
raise BuiltinSignatureError(
@ -1190,7 +1192,7 @@ class DateTimeField(Field):
except InvalidTimeError:
self.fail('make_aware', timezone=field_timezone)
elif (field_timezone is None) and timezone.is_aware(value):
return timezone.make_naive(value, utc)
return timezone.make_naive(value, datetime.timezone.utc)
return value
def default_timezone(self):

View File

@ -10,7 +10,7 @@ from django.utils.encoding import smart_str, uri_to_iri
from django.utils.translation import gettext_lazy as _
from rest_framework.fields import (
Field, empty, get_attribute, is_simple_callable, iter_options
Field, SkipField, empty, get_attribute, is_simple_callable, iter_options
)
from rest_framework.reverse import reverse
from rest_framework.settings import api_settings
@ -535,7 +535,30 @@ class ManyRelatedField(Field):
if hasattr(instance, 'pk') and instance.pk is None:
return []
relationship = get_attribute(instance, self.source_attrs)
try:
relationship = get_attribute(instance, self.source_attrs)
except (KeyError, AttributeError) as exc:
if self.default is not empty:
return self.get_default()
if self.allow_null:
return None
if not self.required:
raise SkipField()
msg = (
'Got {exc_type} when attempting to get a value for field '
'`{field}` on serializer `{serializer}`.\nThe serializer '
'field might be named incorrectly and not match '
'any attribute or key on the `{instance}` instance.\n'
'Original exception text was: {exc}.'.format(
exc_type=type(exc).__name__,
field=self.field_name,
serializer=self.parent.__class__.__name__,
instance=instance.__class__.__name__,
exc=exc
)
)
raise type(exc)(msg)
return relationship.all() if hasattr(relationship, 'all') else relationship
def to_representation(self, iterable):

View File

@ -636,7 +636,7 @@ class AutoSchema(ViewInspector):
"""
return self.get_serializer(path, method)
def _get_reference(self, serializer):
def get_reference(self, serializer):
return {'$ref': '#/components/schemas/{}'.format(self.get_component_name(serializer))}
def get_request_body(self, path, method):
@ -650,7 +650,7 @@ class AutoSchema(ViewInspector):
if not isinstance(serializer, serializers.Serializer):
item_schema = {}
else:
item_schema = self._get_reference(serializer)
item_schema = self.get_reference(serializer)
return {
'content': {
@ -674,7 +674,7 @@ class AutoSchema(ViewInspector):
if not isinstance(serializer, serializers.Serializer):
item_schema = {}
else:
item_schema = self._get_reference(serializer)
item_schema = self.get_reference(serializer)
if is_list_view(path, method, self.view):
response_schema = {
@ -808,3 +808,11 @@ class AutoSchema(ViewInspector):
RemovedInDRF314Warning, stacklevel=2
)
return self.allows_filters(path, method)
def _get_reference(self, serializer):
warnings.warn(
"Method `_get_reference()` has been renamed to `get_reference()`. "
"The old name will be removed in DRF v3.14.",
RemovedInDRF314Warning, stacklevel=2
)
return self.get_reference(serializer)

View File

@ -218,7 +218,7 @@ def format_value(value):
return template.render(context)
elif isinstance(value, str):
if (
(value.startswith('http:') or value.startswith('https:')) and not
(value.startswith('http:') or value.startswith('https:') or value.startswith('/')) and not
re.search(r'\s', value)
):
return mark_safe('<a href="{value}">{value}</a>'.format(value=escape(value)))

View File

@ -288,7 +288,7 @@ class APIClient(APIRequestFactory, DjangoClient):
def get(self, path, data=None, follow=False, **extra):
response = super().get(path, data=data, **extra)
if follow:
response = self._handle_redirects(response, **extra)
response = self._handle_redirects(response, data=data, **extra)
return response
def post(self, path, data=None, format=None, content_type=None,
@ -296,7 +296,7 @@ class APIClient(APIRequestFactory, DjangoClient):
response = super().post(
path, data=data, format=format, content_type=content_type, **extra)
if follow:
response = self._handle_redirects(response, **extra)
response = self._handle_redirects(response, data=data, format=format, content_type=content_type, **extra)
return response
def put(self, path, data=None, format=None, content_type=None,
@ -304,7 +304,7 @@ class APIClient(APIRequestFactory, DjangoClient):
response = super().put(
path, data=data, format=format, content_type=content_type, **extra)
if follow:
response = self._handle_redirects(response, **extra)
response = self._handle_redirects(response, data=data, format=format, content_type=content_type, **extra)
return response
def patch(self, path, data=None, format=None, content_type=None,
@ -312,7 +312,7 @@ class APIClient(APIRequestFactory, DjangoClient):
response = super().patch(
path, data=data, format=format, content_type=content_type, **extra)
if follow:
response = self._handle_redirects(response, **extra)
response = self._handle_redirects(response, data=data, format=format, content_type=content_type, **extra)
return response
def delete(self, path, data=None, format=None, content_type=None,
@ -320,7 +320,7 @@ class APIClient(APIRequestFactory, DjangoClient):
response = super().delete(
path, data=data, format=format, content_type=content_type, **extra)
if follow:
response = self._handle_redirects(response, **extra)
response = self._handle_redirects(response, data=data, format=format, content_type=content_type, **extra)
return response
def options(self, path, data=None, format=None, content_type=None,
@ -328,7 +328,7 @@ class APIClient(APIRequestFactory, DjangoClient):
response = super().options(
path, data=data, format=format, content_type=content_type, **extra)
if follow:
response = self._handle_redirects(response, **extra)
response = self._handle_redirects(response, data=data, format=format, content_type=content_type, **extra)
return response
def logout(self):

View File

@ -217,15 +217,9 @@ def get_field_kwargs(field_name, model_field):
]
if getattr(model_field, 'unique', False):
unique_error_message = model_field.error_messages.get('unique', None)
if unique_error_message:
unique_error_message = unique_error_message % {
'model_name': model_field.model._meta.verbose_name,
'field_label': model_field.verbose_name
}
validator = UniqueValidator(
queryset=model_field.model._default_manager,
message=unique_error_message)
message=get_unique_error_message(model_field))
validator_kwarg.append(validator)
if validator_kwarg:
@ -281,7 +275,9 @@ def get_relation_kwargs(field_name, relation_info):
if model_field.validators:
kwargs['validators'] = model_field.validators
if getattr(model_field, 'unique', False):
validator = UniqueValidator(queryset=model_field.model._default_manager)
validator = UniqueValidator(
queryset=model_field.model._default_manager,
message=get_unique_error_message(model_field))
kwargs['validators'] = kwargs.get('validators', []) + [validator]
if to_many and not model_field.blank:
kwargs['allow_empty'] = False
@ -300,3 +296,13 @@ def get_url_kwargs(model_field):
return {
'view_name': get_detail_view_name(model_field)
}
def get_unique_error_message(model_field):
unique_error_message = model_field.error_messages.get('unique', None)
if unique_error_message:
unique_error_message = unique_error_message % {
'model_name': model_field.model._meta.verbose_name,
'field_label': model_field.verbose_name
}
return unique_error_message

View File

@ -94,6 +94,7 @@ setup(
'Framework :: Django :: 3.1',
'Framework :: Django :: 3.2',
'Framework :: Django :: 4.0',
'Framework :: Django :: 4.1',
'Intended Audience :: Developers',
'License :: OSI Approved :: BSD License',
'Operating System :: OS Independent',

View File

@ -1,7 +1,8 @@
from django.urls import path
from .views import MockView
from .views import BasicModelWithUsersViewSet, MockView
urlpatterns = [
path('', MockView.as_view()),
path('basicviewset', BasicModelWithUsersViewSet.as_view({'get': 'list'})),
]

View File

@ -0,0 +1,8 @@
from rest_framework.serializers import ModelSerializer
from tests.models import BasicModelWithUsers
class BasicSerializer(ModelSerializer):
class Meta:
model = BasicModelWithUsers
fields = '__all__'

View File

@ -1,8 +1,35 @@
from django.contrib.auth.models import User
from django.test import TestCase, override_settings
from rest_framework.permissions import IsAuthenticated
from rest_framework.test import APIClient
from .views import BasicModelWithUsersViewSet, OrganizationPermissions
@override_settings(ROOT_URLCONF='tests.browsable_api.no_auth_urls')
class AnonymousUserTests(TestCase):
"""Tests correct handling of anonymous user request on endpoints with IsAuthenticated permission class."""
def setUp(self):
self.client = APIClient(enforce_csrf_checks=True)
def tearDown(self):
self.client.logout()
def test_get_raises_typeerror_when_anonymous_user_in_queryset_filter(self):
with self.assertRaises(TypeError):
self.client.get('/basicviewset')
def test_get_returns_http_forbidden_when_anonymous_user(self):
old_permissions = BasicModelWithUsersViewSet.permission_classes
BasicModelWithUsersViewSet.permission_classes = [IsAuthenticated, OrganizationPermissions]
response = self.client.get('/basicviewset')
BasicModelWithUsersViewSet.permission_classes = old_permissions
self.assertEqual(response.status_code, 403)
@override_settings(ROOT_URLCONF='tests.browsable_api.auth_urls')
class DropdownWithAuthTests(TestCase):

View File

@ -1,6 +1,16 @@
from rest_framework import authentication, renderers
from rest_framework.permissions import BasePermission
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.viewsets import ModelViewSet
from ..models import BasicModelWithUsers
from .serializers import BasicSerializer
class OrganizationPermissions(BasePermission):
def has_object_permission(self, request, view, obj):
return request.user.is_staff or (request.user == obj.owner.organization_user.user)
class MockView(APIView):
@ -9,3 +19,15 @@ class MockView(APIView):
def get(self, request):
return Response({'a': 1, 'b': 2, 'c': 3})
class BasicModelWithUsersViewSet(ModelViewSet):
queryset = BasicModelWithUsers.objects.all()
serializer_class = BasicSerializer
permission_classes = [OrganizationPermissions]
# permission_classes = [IsAuthenticated, OrganizationPermissions]
renderer_classes = (renderers.BrowsableAPIRenderer, renderers.JSONRenderer)
def get_queryset(self):
qs = super().get_queryset().filter(users=self.request.user)
return qs

View File

@ -1,5 +1,6 @@
import uuid
from django.contrib.auth.models import User
from django.db import models
from django.utils.translation import gettext_lazy as _
@ -33,6 +34,10 @@ class ManyToManySource(RESTFrameworkModel):
targets = models.ManyToManyField(ManyToManyTarget, related_name='sources')
class BasicModelWithUsers(RESTFrameworkModel):
users = models.ManyToManyField(User)
# ForeignKey
class ForeignKeyTarget(RESTFrameworkModel):
name = models.CharField(max_length=100)

View File

@ -1,15 +1,16 @@
from datetime import date, datetime, timedelta
from datetime import date, datetime, timedelta, timezone
from decimal import Decimal
from uuid import uuid4
import pytest
from django.test import TestCase
from django.utils.timezone import utc
from rest_framework.compat import coreapi
from rest_framework.utils.encoders import JSONEncoder
from rest_framework.utils.serializer_helpers import ReturnList
utc = timezone.utc
class MockList:
def tolist(self):

View File

@ -9,7 +9,7 @@ import pytz
from django.core.exceptions import ValidationError as DjangoValidationError
from django.http import QueryDict
from django.test import TestCase, override_settings
from django.utils.timezone import activate, deactivate, override, utc
from django.utils.timezone import activate, deactivate, override
import rest_framework
from rest_framework import exceptions, serializers
@ -17,6 +17,8 @@ from rest_framework.fields import (
BuiltinSignatureError, DjangoImageField, is_simple_callable
)
utc = datetime.timezone.utc
# Tests for helper functions.
# ---------------------------
@ -73,6 +75,10 @@ class TestIsSimpleCallable:
assert is_simple_callable(valid_vargs_kwargs)
assert not is_simple_callable(invalid)
@pytest.mark.parametrize('obj', (True, None, "str", b'bytes', 123, 1.23))
def test_not_callable(self, obj):
assert not is_simple_callable(obj)
def test_4602_regression(self):
from django.db import models
@ -1859,9 +1865,9 @@ class TestMultipleChoiceField(FieldValues):
def test_against_partial_and_full_updates(self):
field = serializers.MultipleChoiceField(choices=(('a', 'a'), ('b', 'b')))
field.partial = False
assert field.get_value(QueryDict({})) == []
assert field.get_value(QueryDict('')) == []
field.partial = True
assert field.get_value(QueryDict({})) == rest_framework.fields.empty
assert field.get_value(QueryDict('')) == rest_framework.fields.empty
class TestEmptyMultipleChoiceField(FieldValues):

View File

@ -12,6 +12,7 @@ import sys
import tempfile
from collections import OrderedDict
import django
import pytest
from django.core.exceptions import ImproperlyConfigured
from django.core.serializers.json import DjangoJSONEncoder
@ -452,11 +453,14 @@ class TestPosgresFieldsMapping(TestCase):
model = ArrayFieldModel
fields = ['array_field', 'array_field_with_blank']
validators = ""
if django.VERSION < (4, 1):
validators = ", validators=[<django.core.validators.MaxLengthValidator object>]"
expected = dedent("""
TestSerializer():
array_field = ListField(allow_empty=False, child=CharField(label='Array field', validators=[<django.core.validators.MaxLengthValidator object>]))
array_field_with_blank = ListField(child=CharField(label='Array field with blank', validators=[<django.core.validators.MaxLengthValidator object>]), required=False)
""")
array_field = ListField(allow_empty=False, child=CharField(label='Array field'%s))
array_field_with_blank = ListField(child=CharField(label='Array field with blank'%s), required=False)
""" % (validators, validators))
self.assertEqual(repr(TestSerializer()), expected)
@pytest.mark.skipif(hasattr(models, 'JSONField'), reason='has models.JSONField')
@ -1021,6 +1025,73 @@ class Issue2704TestCase(TestCase):
assert serializer.data == expected
class Issue7550FooModel(models.Model):
text = models.CharField(max_length=100)
bar = models.ForeignKey(
'Issue7550BarModel', null=True, blank=True, on_delete=models.SET_NULL,
related_name='foos', related_query_name='foo')
class Issue7550BarModel(models.Model):
pass
class Issue7550TestCase(TestCase):
def test_dotted_source(self):
class _FooSerializer(serializers.ModelSerializer):
class Meta:
model = Issue7550FooModel
fields = ('id', 'text')
class FooSerializer(serializers.ModelSerializer):
other_foos = _FooSerializer(source='bar.foos', many=True)
class Meta:
model = Issue7550BarModel
fields = ('id', 'other_foos')
bar = Issue7550BarModel.objects.create()
foo_a = Issue7550FooModel.objects.create(bar=bar, text='abc')
foo_b = Issue7550FooModel.objects.create(bar=bar, text='123')
assert FooSerializer(foo_a).data == {
'id': foo_a.id,
'other_foos': [
{
'id': foo_a.id,
'text': foo_a.text,
},
{
'id': foo_b.id,
'text': foo_b.text,
},
],
}
def test_dotted_source_with_default(self):
class _FooSerializer(serializers.ModelSerializer):
class Meta:
model = Issue7550FooModel
fields = ('id', 'text')
class FooSerializer(serializers.ModelSerializer):
other_foos = _FooSerializer(source='bar.foos', default=[], many=True)
class Meta:
model = Issue7550FooModel
fields = ('id', 'other_foos')
foo = Issue7550FooModel.objects.create(bar=None, text='abc')
assert FooSerializer(foo).data == {
'id': foo.id,
'other_foos': [],
}
class DecimalFieldModel(models.Model):
decimal_field = models.DecimalField(
max_digits=3,

View File

@ -1,7 +1,10 @@
import itertools
from io import BytesIO
from unittest.mock import patch
import django
from django.contrib.auth.models import User
from django.http import HttpResponseRedirect
from django.shortcuts import redirect
from django.test import TestCase, override_settings
from django.urls import path
@ -14,7 +17,7 @@ from rest_framework.test import (
)
@api_view(['GET', 'POST'])
@api_view(['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'])
def view(request):
return Response({
'auth': request.META.get('HTTP_AUTHORIZATION', b''),
@ -36,6 +39,11 @@ def redirect_view(request):
return redirect('/view/')
@api_view(['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'])
def redirect_307_308_view(request, code):
return HttpResponseRedirect('/view/', status=code)
class BasicSerializer(serializers.Serializer):
flag = fields.BooleanField(default=lambda: True)
@ -51,6 +59,7 @@ urlpatterns = [
path('view/', view),
path('session-view/', session_view),
path('redirect-view/', redirect_view),
path('redirect-view/<int:code>/', redirect_307_308_view),
path('post-view/', post_view)
]
@ -146,41 +155,32 @@ class TestAPITestClient(TestCase):
"""
Follow redirect by setting follow argument.
"""
response = self.client.get('/redirect-view/')
assert response.status_code == 302
response = self.client.get('/redirect-view/', follow=True)
assert response.redirect_chain is not None
assert response.status_code == 200
for method in ('get', 'post', 'put', 'patch', 'delete', 'options'):
with self.subTest(method=method):
req_method = getattr(self.client, method)
response = req_method('/redirect-view/')
assert response.status_code == 302
response = req_method('/redirect-view/', follow=True)
assert response.redirect_chain is not None
assert response.status_code == 200
response = self.client.post('/redirect-view/')
assert response.status_code == 302
response = self.client.post('/redirect-view/', follow=True)
assert response.redirect_chain is not None
assert response.status_code == 200
response = self.client.put('/redirect-view/')
assert response.status_code == 302
response = self.client.put('/redirect-view/', follow=True)
assert response.redirect_chain is not None
assert response.status_code == 200
response = self.client.patch('/redirect-view/')
assert response.status_code == 302
response = self.client.patch('/redirect-view/', follow=True)
assert response.redirect_chain is not None
assert response.status_code == 200
response = self.client.delete('/redirect-view/')
assert response.status_code == 302
response = self.client.delete('/redirect-view/', follow=True)
assert response.redirect_chain is not None
assert response.status_code == 200
response = self.client.options('/redirect-view/')
assert response.status_code == 302
response = self.client.options('/redirect-view/', follow=True)
assert response.redirect_chain is not None
assert response.status_code == 200
def test_follow_307_308_preserve_kwargs(self, *mocked_methods):
"""
Follow redirect by setting follow argument, and make sure the following
method called with appropriate kwargs.
"""
methods = ('get', 'post', 'put', 'patch', 'delete', 'options')
codes = (307, 308)
for method, code in itertools.product(methods, codes):
subtest_ctx = self.subTest(method=method, code=code)
patch_ctx = patch.object(self.client, method, side_effect=getattr(self.client, method))
with subtest_ctx, patch_ctx as req_method:
kwargs = {'data': {'example': 'test'}, 'format': 'json'}
response = req_method('/redirect-view/%s/' % code, follow=True, **kwargs)
assert response.redirect_chain is not None
assert response.status_code == 200
for _, call_args, call_kwargs in req_method.mock_calls:
assert all(call_kwargs[k] == kwargs[k] for k in kwargs if k in call_kwargs)
def test_invalid_multipart_data(self):
"""

View File

@ -42,6 +42,12 @@ class RelatedModelSerializer(serializers.ModelSerializer):
fields = ('username', 'email')
class RelatedModelUserSerializer(serializers.ModelSerializer):
class Meta:
model = RelatedModel
fields = ('user',)
class AnotherUniquenessModel(models.Model):
code = models.IntegerField(unique=True)
@ -83,6 +89,13 @@ class TestUniquenessValidation(TestCase):
assert not serializer.is_valid()
assert serializer.errors == {'username': ['uniqueness model with this username already exists.']}
def test_relation_is_not_unique(self):
RelatedModel.objects.create(user=self.instance)
data = {'user': self.instance.pk}
serializer = RelatedModelUserSerializer(data=data)
assert not serializer.is_valid()
assert serializer.errors == {'user': ['related model with this user already exists.']}
def test_is_unique(self):
data = {'username': 'other'}
serializer = UniquenessSerializer(data=data)

View File

@ -3,7 +3,7 @@ envlist =
{py36,py37,py38,py39}-django22,
{py36,py37,py38,py39}-django31,
{py36,py37,py38,py39,py310}-django32,
{py38,py39,py310}-{django40,djangomain},
{py38,py39,py310}-{django40,django41,djangomain},
base,dist,docs,
[travis:env]
@ -12,6 +12,7 @@ DJANGO =
3.1: django31
3.2: django32
4.0: django40
4.1: django41
main: djangomain
[testenv]
@ -24,7 +25,8 @@ deps =
django22: Django>=2.2,<3.0
django31: Django>=3.1,<3.2
django32: Django>=3.2,<4.0
django40: Django>=4.0,<5.0
django40: Django>=4.0,<4.1
django41: Django>=4.1a1,<4.2
djangomain: https://github.com/django/django/archive/main.tar.gz
-rrequirements/requirements-testing.txt
-rrequirements/requirements-optionals.txt