课程介绍
过滤Filtering

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              [
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                    课程介绍
                ](_index_)

```
              [
```

                    引入DjangoRESTframework
                ](c01-introducetodrf_index)
        - 
                [
                    Web应用模式
                ](c01-introducetodrf_separatedfrontendandbackend)

```
              [
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                    认识RESTful
                ](c01-introducetodrf_introducetorest)

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              [
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                    RESTful设计方法
                ](c01-introducetodrf_howtodesignrest)

```
              [
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                    使用Django开发REST接口
                ](c01-introducetodrf_developrestapiwithdjango)

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              [
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                    明确REST接口开发的核心任务
                ](c01-introducetodrf_coretasktodeveloprestapi)

```
              [
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                    DjangoRESTframework简介
                ](c01-introducetodrf_aboutdrf)

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              [
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                    DRF工程搭建
                ](c02-drfproject_index)
        - 
                [
                    环境安装与配置
                ](c02-drfproject_installandconfig)

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              [
```

                    见识DRF的魅力
                ](c02-drfproject_thefirstdrfprogram)

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              [
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                    Serializer序列化器
                ](c03-serializer_index)
        - 
                [
                    定义Serializer
                ](c03-serializer_declaring)

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                    序列化使用
                ](c03-serializer_serializing)

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              [
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                    反序列化使用
                ](c03-serializer_deserializing)

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              [
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                    模型类序列化器ModelSerializer
                ](c03-serializer_modelserializer)

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                    视图
                ](c04-view_index)
        - 
                [
                    Request与Response
                ](c04-view_requestandresponse)

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                    视图概览
                ](c04-view_view)

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              [
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                    视图说明
                ](c04-view_viewintroduction)

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                    视图集ViewSet
                ](c04-view_viewset)

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              [
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                    路由Router
                ](c04-view_routers)

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              [
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                    其他功能
                ](c05-components_index)
        - 
                [
                    认证
                ](c05-components_authentication)

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              [
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                    权限
                ](c05-components_permissions)

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                    限流
                ](c05-components_throttling)

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                    过滤
                ](c05-components_filtering)

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                    排序
                ](c05-components_ordering)

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                    分页
                ](c05-components_pagination)

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                    版本
                ](c05-components_versioning)

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                    异常处理
                ](c05-components_exceptions)

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                    自动生成接口文档
                ](c05-components_documents)

          [
              Published with GitBook
          ](https://www.gitbook.com)

课程介绍

过滤Filtering

对于列表数据可能需要根据字段进行过滤，我们可以通过添加django-fitlter扩展来增强支持。

pip install django-filter

在配置文件中增加过滤后端的设置：

INSTALLED_APPS = [
    ...
    'django_filters',  # 需要注册应用，
]
REST_FRAMEWORK = {
    'DEFAULT_FILTER_BACKENDS': ('django_filters.rest_framework.DjangoFilterBackend',)
}

在视图中添加filter_fields属性，指定可以过滤的字段

class BookListView(ListAPIView):
    queryset = BookInfo.objects.all()
    serializer_class = BookInfoSerializer
    filter_fields = ('btitle', 'bread')
# 127.0.0.1:8000/books/?btitle=西游记