django-rest-framework视图和url

django-rest-framework视图

GenericView

class GenericView(GenericAPIView):
    queryset = models.Role.objects.all()
    serializer_class = serializers.RoleSerializer
    pagination_class = PageNumberPagination

    def get(self, request):
        # 获取数据
        data = self.get_queryset()
        # 获取分页数据
        page_data = self.paginate_queryset(data)
        # 获取序列化数据
        resp = self.get_serializer(instance=page_data, many=True)
        return Response(resp.data)

• GenericView在原来的ApiView上作了一点封装，主要使用的有三个方法
  • get_queryset : 获取查询的queryset对象
  • paginate_queryset： 获取分页后的对象，须要接受一个queryset对象参数
  • get_serializer： 序列化数据，制定序列化对象和制定many的参数

GenericViewSet

class GenericView(GenericViewSet):

    def list(self, request):
        return Response('list')

from django.conf.urls import re_path

from . import views

urlpatterns = [
    re_path(r'^index/', views.GenericView.as_view({'get': 'list'})),
]

• GenericViewSet的使用跟GenericView大体无差异，只是对应请求方法的函数须要自定义
  • url的as_view方法须要传递一个字典参数，字典的key就是对应的请求方法，value就是对应请求方法的处理函数

ModelViewSet

class GenericView(ModelViewSet):
    queryset = models.Role.objects.all()
    serializer_class = serializers.RoleSerializer
    pagination_class = PageNumberPagination

• ModelViewSet就更高级了，它默认实现了增删该查的方法，只须要配置好对应的属性就能够了

url

from django.conf.urls import re_path

from . import views

urlpatterns = [
    re_path(r'^index/', views.GenericView.as_view({'get': 'list', 'post': 'update'})),
]

全自动生成路由

from django.urls import path, include, re_path
from rest_framework import routers

from . import views

route = routers.DefaultRouter()

route.register('index', views.GenericView)

urlpatterns = [
    re_path('', include(route.urls))
]