drf--ViewSet -第二波 进阶版 ----含更高度封装类ModelViewSet

https://www.bilibili.com/video/BV1z5411D7BQ?p=19&vd_source=caabcbd2a759a67e2a3de8acbaaf08ea

view.py

GenericViewSet 是继承了ViewSet 

from sers.models import  Book
from rest_framework import serializers
from rest_framework.mixins import ListModelMixin,CreateModelMixin,UpdateModelMixin,DestroyModelMixin,RetrieveModelMixin
from rest_framework.generics import RetrieveDestroyAPIView

from rest_framework.viewsets import GenericViewSet

class BookSerializers(serializers.ModelSerializer):
    class Meta:
        model=Book
        fields = "__all__"

# ListModelMixin中的list方法获取所有数据 ----所以在路由处制定该方法即可
# CreateModelMixin中的create方法新增一条数据    ----所以在路由处制定该方法即可
# RetrieveModelMixin中retrieve方法，为根据id查看单条    ----所以在路由处制定该方法即可
# UpdateModelMixin中update方法,为根据id更新某条   ----所以在路由处制定该方法即可
# DestroyModelMixin中destroy方法,为根据id删除某条   ----所以在路由处制定该方法即可
class BookView(GenericViewSet,ListModelMixin,CreateModelMixin,RetrieveModelMixin,UpdateModelMixin,DestroyModelMixin):
    # 获取所有书籍---操作数据库
    queryset = Book.objects.all()
    # 序列化模型(序列化器)
    serializer_class = BookSerializers

url.py

urlpatterns = [
    path('admin/', admin.site.urls),

    # 新
    url('^book/$', views.BookView.as_view({"get":"list","post":"create"})),
    # 新
    # 加有名分组?P<pk>
    url('^book/(?P<pk>\d+)/$', views.BookView.as_view({"get":"retrieve","put":"update","delete":"destroy"})),
]

 

 

-----------ModelViewSet

实际就是 ModelViewSet 是继承了GenericViewSet,ListModelMixin,CreateModelMixin,RetrieveModelMixin,UpdateModelMixin,DestroyModelMixin6个方法 ，不用写那么多类集成，写一个ModelViewSet就够了

# ListModelMixin中的list方法获取所有数据 ----所以在路由处制定该方法即可
# CreateModelMixin中的create方法新增一条数据    ----所以在路由处制定该方法即可
# RetrieveModelMixin中retrieve方法，为根据id查看单条    ----所以在路由处制定该方法即可
# UpdateModelMixin中update方法,为根据id更新某条   ----所以在路由处制定该方法即可
# DestroyModelMixin中destroy方法,为根据id删除某条   ----所以在路由处制定该方法即可v
# ModelViewSet 是继承了GenericViewSet,ListModelMixin,CreateModelMixin,RetrieveModelMixin,UpdateModelMixin,DestroyModelMixin6个方法
from rest_framework.viewsets import ModelViewSet

class BookSerializers(serializers.ModelSerializer):
    class Meta:
        model=Book
        fields = "__all__"

class BookView(ModelViewSet):
    # 获取所有书籍---操作数据库
    queryset = Book.objects.all()
    # 序列化模型(序列化器)
    serializer_class = BookSerializers

 

踩坑:

如果用modelViwSet url那边一定要用 re_path

from django.urls import re_path as url
urlpatterns = [
    # 巡检任务 增、删、改、查
    url('^task/$', patroltaskviews.PatrolTaskViews.as_view({"get":"list","post":"create"})),
    url('^task/(?P<pk>\d+)/$', patroltaskviews.PatrolTaskViews.as_view({"get":"retrieve","put":"update","delete":"destroy"})),
]