Django Rest Framework--2

from django.shortcuts import render,HttpResponse
from django.views import View
from blog.models import Book,Publish,Author
from rest_framework.response import Response
from rest_framework import serializers
#为queryset,model对象做序列化
class PublishSerializers(serializers.Serializer):
    name=serializers.CharField()
    email=serializers.CharField()

# class BookSerializers(serializers.Serializer):
#     title=serializers.CharField(max_length=32)
#     price=serializers.IntegerField()
#     pub_date=serializers.DateField()
#     publish=serializers.CharField(source="publish.name")
#     # authors=serializers.CharField(source="authors.all")
#     authors = serializers.SerializerMethodField()
#     def get_authors(self,obj):
#         temp = []
#         for author in obj.authors.all():
#             temp.append(author.name)
#         return temp
class BookSerializers(serializers.ModelSerializer):
    class Meta:
        model = Book
        fields = "__all__"
        # depth = 1
    # publish=serializers.CharField(source="publish.pk",read_only=True)
    publish = serializers.HyperlinkedIdentityField(
        view_name='publish_detail',
        lookup_field="publish_id",
        lookup_url_kwarg="pk"

    )
    # authors=serializers.CharField(source="authors.all")
    # authors = serializers.SerializerMethodField()
    # def get_authors(self,obj):
    #     temp = []
    #     for author in obj.authors.all():
    #         temp.append(author.pk)
    #     return temp

    def create(self, validated_data):
        print("validated_data",validated_data)
        # authors = validated_data.pop('authors')
        # obj = Book.objects.create(**validated_data)
        # obj.authors.add(*authors)
        # return obj
        book=Book.objects.create(title=validated_data['title'],
                                 price=validated_data['price'],
                                 pub_date=validated_data['pub_date'],
                                 publish_id=validated_data['publish']['pk'])
        book.authors.add(*validated_data['authors'])
        return book

# from django.utils.decorators import method_decorator
from rest_framework.views import APIView
# from rest_framework.response import Response

class PublishesView(APIView):
    # def dispatch(self, request, *args, **kwargs):
    #     print("dispatch......")
    #     ret=super(LoginView,self).dispatch(self, request, *args, **kwargs)
    #     return ret
    def get(self,request,*args,**kwargs):
        print("GET", request.POST)
        print("body", request.body)
        return HttpResponse("get")

    def post(self,request,*args,**kwargs):
        # 原生的request支持的操作
        # print("POST",request.POST)
        # print("body",request.body)
        # # print(request)
        # print(type(request))
        # from django.core.handlers.wsgi import WSGIRequest

        # 新的request支持的操作
        #request._request.POST    #如果需要原来的request
        print("request.data  新的request",request.data)



        return HttpResponse("post")

class PublishDetailViewSet(APIView):
    pass

class BookView(APIView):
    def get(self,request):
        book_list=Book.objects.all()
        bs=BookSerializers(book_list,many=True,context={'request': request})
        # return HttpResponse(bs.data)
        return Response(bs.data)

    def post(self, request, *args, **kwargs):

        bs = BookSerializers(data=request.data, many=False)
        if bs.is_valid():
            # print(bs.validated_data)
            bs.save()
            return Response(bs.data)
        else:
            # return HttpResponse(bs.errors)
            return Response(bs.errors)

class BookDetailViewSet(APIView):
    def get(self,request,id):
        book=Book.objects.filter(pk=id).first()
        #quryset using many=True    or model_object nothing
        bs = BookSerializers(book,context={'request': request})
        return Response(bs.data)

    def put(self,request,id):
        book = Book.objects.filter(pk=id).first()
        bs=BookSerializers(book,data=request.data)
        if bs.is_valid():
            bs.save()
            return Response(bs.data)
        else:
            return Response(bs.errors)
    def delete(self,request,id):
        Book.objects.filter(pk=id).first().delete()
        return Response()

"""mysite1 URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.1/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path,re_path
from blog import views
urlpatterns = [
    path('admin/', admin.site.urls,),
    re_path("^publishes/", views.PublishesView.as_view(),name="publishes"),  # 用来调用CBV 调用类
    re_path('^publishers/(?P<pk>d+)$', views.PublishDetailViewSet.as_view(),name="publish_detail"),

    re_path("^books/$", views.BookView.as_view()),  # 用来调用CBV 调用类
    re_path(r'^books/(d+)/$', views.BookDetailViewSet.as_view(), name="book_detail"),

]

from django.db import models

# Create your models here.

class Book(models.Model):
    title=models.CharField(max_length=32)
    price=models.IntegerField()
    pub_date=models.DateField(null=True)
    publish=models.ForeignKey("Publish",on_delete=models.CASCADE)
    authors=models.ManyToManyField("Author")


    def __str__(self):
        return self.title
class Publish(models.Model):
    name=models.CharField(max_length=32)
    email=models.EmailField()
    def __str__(self):
        return self.name

class Author(models.Model):
    name=models.CharField(max_length=32)
    age=models.IntegerField()

    def __str__(self):
        return self.name

"""
Django settings for mysite1 project.

Generated by 'django-admin startproject' using Django 2.1.2.

For more information on this file, see
https://docs.djangoproject.com/en/2.1/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/2.1/ref/settings/
"""

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/2.1/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'cnclo%stfy&xw$oo58*5qm!2*7y1te57*dkx!9ci$yha-=s=-6'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'blog.apps.BlogConfig',
    'rest_framework',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    # 'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'mysite1.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')]
        ,
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'mysite1.wsgi.application'


# Database
# https://docs.djangoproject.com/en/2.1/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/2.1/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.1/howto/static-files/

STATIC_URL = '/static/'



REST_FRAMEWORK = {
    # Use Django's standard `django.contrib.auth` permissions,
    # or allow read-only access for unauthenticated users.
    'DEFAULT_PERMISSION_CLASSES': [
        # 'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'
    ]
}
#
# 将设置里的'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'一句删除，重启项目再次访问，不在报错。
#
# 　　注：'rest_framewo