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REST framework validators, like their Django counterparts, implement the __eq__ method, allowing you to compare instances for equality. UniqueValidator. This validator can be used to enforce the unique=True constraint on model fields. It takes a single required argument, and an optional messages argument:
REST framework supports HTTP content negotiation by providing a Response class which allows you to return content that can be rendered into multiple content types, depending on the client request. The Response class subclasses Django's SimpleTemplateResponse. Response objects are initialised with data, which should consist of native Python ...
Tutorial 1: Serialization Introduction. This tutorial will cover creating a simple pastebin code highlighting Web API. Along the way it will introduce the various components that make up REST framework, and give you a comprehensive understanding of how everything fits together.
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.
Django REST Framework教程. 大江狗原创的Django REST Framework系列教程终于姗姗而来。我们将以博客为例用不少于10篇的原创文章系统性地介绍如何使用这个DRF神器开发符合RESTful规范的API，并重点介绍API开发和管理中的核心知识比如序列化、认证、权限、分页、过滤、和限流等等。
REST_FRAMEWORK = { 'EXCEPTION_HANDLER': 'rest_framework.views.exception_handler' } Note that the exception handler will only be called for responses generated by raised exceptions. It will not be used for any responses returned directly by the view, such as the HTTP_400_BAD_REQUEST responses that are returned by the generic views when serializer validation fails.
The generic views provided by REST framework allow you to quickly build API views that map closely to your database models. If the generic views don't suit the needs of your API, you can drop down to using the regular APIView class, or reuse the mixins and base classes used by the generic views to compose your own set of reusable generic views.
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