自动生成路由和action

自动生成路由

from django.contrib import admin
from django.urls import path, re_path

from app01 import views
from rest_framework import routers
#自动生成路由，需要继承ModelViewSet 才可以使用
# rou = routers.SimpleRouter()
rou = routers.DefaultRouter()
rou.register('BookModelViewSet',views.BookModelViewSet)
print(rou.urls)
urlpatterns = [
    path('admin/', admin.site.urls),
    path('reg/', views.reg),
    path('login/', views.login),
    path('index/', views.index),
    re_path('Books/(?P<pk>\d+)', views.Books.as_view()),
    path('Books/', views.BooksAll.as_view()),

    re_path('Booksmod/(?P<pk>\d+)', views.BooksMod.as_view()),
    path('Booksmod/', views.BooksModAll.as_view()),

    re_path('BooksGeneri/(?P<pk>\d+)', views.BooksGeneri.as_view()),
    path('BooksGeneri/', views.BooksGeneriAll.as_view()),

    re_path('BoosListView/(?P<pk>\d+)', views.BookRetrieveView.as_view()),
    path('BoosListView/', views.BoosListView.as_view()),

    # re_path('BookModelViewSet/(?P<pk>\d+)', views.BookModelViewSet.as_view(actions={'get':'retrieve','put':'retrieve','delete':'distroy'})),
    # path('BookModelViewSet/', views.BookModelViewSet.as_view(actions={'get':'list','post':'create'})),
]
urlpatterns += rou.urls

# ^BookModelViewSet/$ [name='book-list']
# ^BookModelViewSet\.(?P<format>[a-z0-9]+)/?$ [name='book-list']
# ^BookModelViewSet/(?P<pk>[^/.]+)/$ [name='book-detail']
# ^BookModelViewSet/(?P<pk>[^/.]+)\.(?P<format>[a-z0-9]+)/?$ [name='book-detail']
# ^$ [name='api-root']
# ^\.(?P<format>[a-z0-9]+)/?$ [name='api-root']

　action的使用：

# action干什么用？为了给继承自ModelViewSet的视图类中定义的函数也添加路由
# 使用
class BookViewSet(ModelViewSet):
    queryset =Book.objects.all()
    serializer_class = BookSerializer
    # methods第一个参数，传一个列表，列表中放请求方式，
    # ^books/get_1/$ [name='book-get-1'] 当向这个地址发送get请求，会执行下面的函数
    # detail：布尔类型 如果是True
    #^books/(?P<pk>[^/.]+)/get_1/$ [name='book-get-1']
    @action(methods=['GET','POST'],detail=True)
    def get_1(self,request,pk):
        print(pk)
        book=self.get_queryset()[:2]  # 从0开始截取一条
        ser=self.get_serializer(book,many=True)
        return Response(ser.data)
    
# 装饰器，放在被装饰的函数上方，method：请求方式，detail：是否带pk