目录
- 写接口前的准备
- 一 继承APIView+序列化类+Resonse写5个接口
- 二 继承GenericAPIView + 序列化类 + Resonse写5个接口
- 三 继承GenericAPIView+5个视图扩展类+序列化类+Response写接口
- 四 基于视图子类写5 个接口:9个视图子类--->视图类
- 五 视图集合
- 5.1 ModelViewSet
- 5.2 ReadOnlyModelViewSet,只有两个方法
- 5.3 ViewSetMixin
- 5.4 ViewSet
- 5.5 GenericViewSet
写接口前的准备
1 表模型
from django.db import models
class Book(models.Model):
name = models.CharField(max_length=32)
price = models.CharField(max_length=32)
publish = models.ForeignKey(to='Publish', on_delete=models.DO_NOTHING, null=True, db_constraint=False)
authors = models.ManyToManyField(to='Author')
class Publish(models.Model):
name = models.CharField(max_length=32)
addr = models.CharField(max_length=32)
class Author(models.Model):
name = models.CharField(max_length=32)
phone = models.CharField(max_length=11)
# 本质就是ForeignKey,但是唯一,多的一方唯一,形成了一对一
author_detail = models.OneToOneField(to='AuthorDetail', on_delete=models.CASCADE)
class AuthorDetail(models.Model):
email = models.CharField(max_length=32)
age = models.IntegerField()
序列化类
from rest_framework import serializers
from .models import Book
class BookSerializer(serializers.ModelSerializer):
class Meta:
model = Book
fields = '__all__'
一 继承APIView+序列化类+Resonse写5个接口
视图类
from rest_framework.views import APIView
from rest_framework.response import Response
from .models import Book
from .serializer import BookSerializer
class BookView(APIView):
def get(self, request):
book_list = Book.objects.all()
ser = BookSerializer(book_list, many=True)
return Response({'code': 100, 'msg': '查询所有成功', 'data': ser.data})
def post(self, request):
ser = BookSerializer(data=request.data)
if ser.is_valid():
ser.save()
return Response({'code': 100, 'msg': '新增成功'})
else:
return Response({'code': 100, 'msg': ser.errors})
class BookDetailView(APIView):
def get(self, request, pk):
book = Book.objects.filter(pk=pk).first()
ser = BookSerializer(book)
return Response({'code': 101, 'msg': '查询一条成功', 'data': ser.data})
def put(self, request, pk):
book = Book.objects.filter(pk=pk).filter()
ser = BookSerializer(book, data=request.data)
if ser.is_valid():
ser.save()
return Response({'code': 100, 'msg': '更新成功'})
else:
return Response({'code': 101, 'msg': ser.errors})
def delete(self, request, pk):
Book.objects.fiter(pk=pk).delete()
return Response({'code': 100, 'msg': '删除成功'})
路由
urlpatterns = [
path('books/', views.BookView.as_view()),
path('books/<int:pk>/', views.BookDetailView.as_view()),
]
二 继承GenericAPIView + 序列化类 + Resonse写5个接口
视图类
from .models import Book
from .serializer import BookSerializer
from rest_framework.response import Response
from rest_framework.generics import GenericAPIView
class BookView(GenericAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
def get(self, request):
book_list = self.get_queryset()
ser = self.get_serializer(book_list, many=True)
return Response({'code': 100, 'msg': '成功', 'results': ser.data})
def post(self, request):
ser = self.get_serializer(data=request.data)
if ser.is_valid():
ser.save()
return Response({'code': 100, 'msg': '成功'})
else:
return Response({'code': 101, 'msg': ser.errors})
class BookDetailView(GenericAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
def get(self, request, pk):
book = self.get_object()
ser = self.get_serializer(book)
return Response({'code': 100, 'msg': '成功', 'results': ser.data})
def post(self, request, pk):
book = self.get_object()
ser = self.get_serializer(book, data=request.data)
if ser.is_valid():
ser.save()
return Response({'code': 100, 'msg': '更新成功'})
else:
return Response({'code': 101, 'msg': ser.errors})
def delete(self, request, pk):
self.get_object().delete()
return Response({'code': 100, 'msg': '删除成功'})
路由
urlpatterns = [
path('books/', views.BookView.as_view()),
path('books/<int:pk>/', views.BookDetailView.as_view()),
]
三 继承GenericAPIView+5个视图扩展类+序列化类+Response写接口
视图类
from .models import Book
from .serializer import BookSerializer
from rest_framework.generics import GenericAPIView
from rest_framework.mixins import ListModelMixin, CreateModelMixin, RetrieveModelMixin, UpdateModelMixin, \
DestroyModelMixin
class BookView(GenericAPIView, ListModelMixin, CreateModelMixin):
queryset = Book.objects.all()
serializer_class = BookSerializer
def get(self, request):
return self.list(request)
def post(self, request):
return self.create(request)
class BookDetailView(GenericAPIView, RetrieveModelMixin, UpdateModelMixin, DestroyModelMixin):
queryset = Book.objects.all()
serializer_class = BookSerializer
def get(self, request, pk):
return self.retrieve(request, pk)
def put(self, request, pk):
return self.update(request, pk)
def delete(self, request, pk):
return self.destroy(request, pk)
路由
urlpatterns = [
path('books/', views.BookView.as_view()),
path('books/<int:pk>/', views.BookDetailView.as_view()),
]
四 基于视图子类写5 个接口:9个视图子类--->视图类
单独使用5个类:
视图类
from .models import Book
from .serializer import BookSerializer
from rest_framework.generics import ListAPIView, CreateAPIView, RetrieveAPIView, UpdateAPIView, DestroyAPIView
class BookView(ListAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
class BookView(CreateAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
class BookDetailView(RetrieveAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
class BookDetailView(UpdateAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
class BookDetailView(DestroyAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
路由
urlpatterns = [
path('books/', views.BookView.as_view()),
path('books/<int:pk>/', views.BookDetailView.as_view()),
]
使用复合的类:
视图类
from rest_framework.generics import ListCreateAPIView, RetrieveUpdateDestroyAPIView, RetrieveDestroyAPIView, \
RetrieveUpdateAPIView
class BookView(ListCreateAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
class BookDetailView(RetrieveUpdateDestroyAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
路由
urlpatterns = [
path('books/', views.BookView.as_view()),
path('books/<int:pk>/', views.BookDetailView.as_view()),
]
上面的所有方法中使用的路由都一致,都是原始写法。
五 视图集合
5.1 ModelViewSet
视图类
from .models import Book
from .serializer import BookSerializer
from rest_framework.viewsets import ModelViewSet
class BookView(ModelViewSet):
queryset = Book.objects.all()
serializer_class = BookSerializer
路由
urlpatterns = [
path('books/', views.BookView.as_view({'get': 'list', 'post': 'create'})),
path('books/<int:pk>/', views.BookView.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy'})),
]
# 也可以使用自动生成路由
5.2 ReadOnlyModelViewSet,只有两个方法
视图类
from .models import Book
from .serializer import BookSerializer
from rest_framework.viewsets import ReadOnlyModelViewSet
class BookView(ReadOnlyModelViewSet):
queryset = Book.objects.all()
serializer_class = BookSerializer
路由
urlpatterns = [
path('books/', views.BookView.as_view({'get': 'list'})),
path('books/<int:pk>/', views.BookView.as_view({'get': 'retrieve'})),
]
# 也可以使用自动生成路由
5.3 ViewSetMixin
视图类
from .models import Book
from .serializer import BookSerializer
from rest_framework.viewsets import ViewSetMixin
from rest_framework.generics import ListCreateAPIView, RetrieveUpdateDestroyAPIView
class BookView(ViewSetMixin, ListCreateAPIView, RetrieveUpdateDestroyAPIView):
queryset = Book.objects.all()
serializer_class = BookSerializer
路由
路由可以这么写:
urlpatterns = [
path('books/', views.BookView.as_view({'get': 'list', 'post': 'create'})),
path('books/<int:pk>/', views.BookView.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy'})),
]
# 也可以使用自动生成路由
5.4 ViewSet
ViewSet =ViewSetMixin+APIView
视图类
from .models import Book
from .serializer import BookSerializer
from rest_framework.response import Response
from rest_framework.viewsets import ViewSet
class BookView(ViewSet):
def list(self, request):
book_list = Book.objects.all()
ser = BookSerializer(book_list, many=True)
return Response({'code': 100, 'msg': '查询所有成功', 'data': ser.data})
def create(self, request):
ser = BookSerializer(data=request.data)
if ser.is_valid():
ser.save()
return Response({'code': 100, 'msg': '新增成功'})
else:
return Response({'code': 100, 'msg': ser.errors})
def retrieve(self, request, pk):
book = Book.objects.filter(pk=pk).first()
ser = BookSerializer(book)
return Response({'code': 101, 'msg': '查询一条成功', 'data': ser.data})
def update(self, request, pk):
book = Book.objects.filter(pk=pk).filter()
ser = BookSerializer(book, data=request.data)
if ser.is_valid():
ser.save()
return Response({'code': 100, 'msg': '更新成功'})
else:
return Response({'code': 101, 'msg': ser.errors})
def destroy(self, request, pk):
Book.objects.fiter(pk=pk).delete()
return Response({'code': 100, 'msg': '删除成功'})
路由
urlpatterns = [
path('books/', views.BookView.as_view({'get': 'list', 'post': 'create'})),
path('books/<int:pk>/', views.BookView.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy'})),
]
# 也可以使用自动生成路由
5.5 GenericViewSet
GenericViewSet = ViewSetMixin+GenericAPIView
视图类
from .models import Book
from .serializer import BookSerializer
from rest_framework.response import Response
from rest_framework.viewsets import GenericViewSet
class BookView(GenericViewSet):
queryset = Book.objects.all()
serializer_class = BookSerializer
def list(self, request):
book_list = self.get_queryset()
ser = self.get_serializer(book_list, many=True)
return Response({'code': 100, 'msg': '成功', 'results': ser.data})
def create(self, request):
ser = self.get_serializer(data=request.data)
if ser.is_valid():
ser.save()
return Response({'code': 100, 'msg': '成功'})
else:
return Response({'code': 101, 'msg': ser.errors})
# class BookDetailView(GenericAPIView):
# queryset = Book.objects.all()
# serializer_class = BookSerializer
def retrieve(self, request, pk):
book = self.get_object()
ser = self.get_serializer(book)
return Response({'code': 100, 'msg': '成功', 'results': ser.data})
def update(self, request, pk):
book = self.get_object()
ser = self.get_serializer(book, data=request.data)
if ser.is_valid():
ser.save()
return Response({'code': 100, 'msg': '更新成功'})
else:
return Response({'code': 101, 'msg': ser.errors})
def destroy(self, request, pk):
self.get_object().delete()
return Response({'code': 100, 'msg': '删除成功'})
路由
urlpatterns = [
path('books/', views.BookView.as_view({'get': 'list', 'post': 'create'})),
path('books/<int:pk>/', views.BookView.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy'})),
]
# 也可以使用自动生成路由
标签:ser,self,request,接口,Book,import,class,drf
From: https://www.cnblogs.com/zjyao/p/17432932.html