DRF 视图

前提

序列化

from rest_framework import serializers
from app01 import models


class CommentSerializer(serializers.ModelSerializer):
    class Meta:
        model = models.Comment
        fields = "__all__"
        extra_kwargs = {
            "content": {"error_messages": {"required": "评论内容不能为空"}},
            "article": {"error_messages": {"required": "文章不能为空"}}
        }


class SchoolSerializer(serializers.ModelSerializer):
    class Meta:
        model = models.School
        fields = "__all__"

初生牛犊之徒手垒代码阶段

视图

class SchoolView(APIView):
    def get(self, request, *args, **kwargs):
        query_set = models.School.objects.all()
        ser_obj = app01_serializers.SchoolSerializer(query_set, many=True)
        return Response(ser_obj.data)


class SchoolDetail(APIView):
    def get(self, request, pk, *args, **kwargs):
        obj = models.School.objects.filter(pk=pk).first()
        ser_obj = app01_serializers.SchoolSerializer(obj)
        return Response(ser_obj.data)

小试牛刀之使用混合类阶段

视图

class SchoolView(GenericAPIView, mixins.ListModelMixin):
    queryset = models.School.objects.all()
    serializer_class = app01_serializers.SchoolSerializer

    def get(self, request, *args, **kwargs):
        return self.list(request, *args, **kwargs)


class SchoolDetail(GenericAPIView, mixins.RetrieveModelMixin, mixins.CreateModelMixin):
    queryset = models.School.objects.all()
    serializer_class = app01_serializers.SchoolSerializer

    def get(self, request, pk, *args, **kwargs):
        return self.retrieve(request, pk, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        return self.create(request, *args, **kwargs)

路由

url(r'school/$', views.SchoolView.as_view()),
url(r'school/(?P<pk>\d+)/$', views.SchoolDetail.as_view()),

牛气冲天之使用通用类

视图

class SchoolView(ListCreateAPIView):
    queryset = models.School.objects.all()
    serializer_class = app01_serializers.SchoolSerializer


class SchoolDetail(RetrieveUpdateDestroyAPIView):
    queryset = models.School.objects.all()
    serializer_class = app01_serializers.SchoolSerializer

路由

同上

牛牛牛牛之使用视图集

视图

lass SchoolView(ModelViewSet):
    queryset = models.School.objects.all()
    serializer_class = app01_serializers.SchoolSerializer

路由

url(r'school/$', views.SchoolView.as_view({
    "get": "list",
    "post": "create",
})),
url(r'school/(?P<pk>\d+)/$', views.SchoolView.as_view({
    'get': 'retrieve',
    'put': 'update',
    'patch': 'partial_update',
    'delete': 'destroy'
})),

再来一牛之高级路由

视图

同上

路由

from rest_framework.routers import DefaultRouter

router = DefaultRouter()
router.register(r'school', views.SchoolView)
urlpatterns += router.urls

赠图一张