Restframework 视图组件与序列号组件的应用.

 

 

models

 

from django.db import models

# Create your models here.


class Course(models.Model):
    title=models.CharField(max_length=32)
    desc=models.CharField(max_length=32)



from django.db import models

# Create your models here.


class Author(models.Model):
    nid = models.AutoField(primary_key=True)
    name=models.CharField( max_length=32)
    age=models.IntegerField()

    def __str__(self):
        return self.name


class Publish(models.Model):
    nid = models.AutoField(primary_key=True)
    name=models.CharField( max_length=32)
    city=models.CharField( max_length=32)
    email=models.EmailField()

    def __str__(self):
        return self.name


class Book(models.Model):

    nid = models.AutoField(primary_key=True)
    title = models.CharField( max_length=32)
    publishDate=models.DateField()
    price=models.DecimalField(max_digits=5,decimal_places=2)

    # 与Publish建立一对多的关系,外键字段建立在多的一方
    publish=models.ForeignKey(to="Publish",to_field="nid",on_delete=models.CASCADE)
    # 与Author表建立多对多的关系,ManyToManyField可以建在两个模型中的任意一个，自动创建第三张表
    authors=models.ManyToManyField(to='Author',)

 

urls

 

from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
    url(r'^admin/', admin.site.urls),

    #方式一
    url(r"^books/$",views.BookView.as_view()),
    url(r"^books/(\d+)/$",views.BookViewDetail.as_view()),

    #方式二
    url(r"^publish/$",views.PublishView.as_view()),
    url(r"^publish/(\d+)/$",views.PublishView.as_view()),

    #方式三
    url(r"^authors/$", views.AuthorsView.as_view()),
    url(r"^authors/(\d+)/$", views.AuthorsViewDetail.as_view()),

    #方式四
    url(r"^authors/$", views.AuthorsModelView.as_view({"get":"list","post":"create"})),
    url(r"^authors/(?P<pk>\d+)/$", views.AuthorsModelView.as_view({"get":"retrieve","delete":"destroy","put":"update"})),

]

 

serializers

 

from app01.models import *
from rest_framework import serializers
class BookSerializer(serializers.ModelSerializer):
    class Meta:
        model =Book
        fields="__all__"

class PublishSerializer(serializers.ModelSerializer):
    class Meta:
        model=Publish
        fields="__all__"

class AuthorSerializer(serializers.ModelSerializer):
    class Meta:
        model= Author
        fields="__all__"

 

视图：

 

 

from django.shortcuts import render

# Create your views here.
###########################################BookView############################方式一
from rest_framework.views import APIView
from rest_framework.response import Response
from app01.models import Book,Author,Publish
from app01.serializer import BookSerializer,PublishSerializer,AuthorSerializer

class BookView(APIView):
    def get(self,request):
        """
        查看所有书籍
        :param request:
        :return:
        """
        book_list=Book.objects.all()
        serializer= BookSerializer(book_list,many=True)
        return Response(serializer.data)

    def post(self,request):
        """
        添加一条书籍
        :param request:
        :return:
        """
        serializer=BookSerializer(data=request.data,many=True)
        if serializer.is_valid():
            serializer.save()#create操作.
            return Response(serializer.data)
        else:
            return Response(serializer.errors)

class BookViewDetail(APIView):
    def get(self,request,pk):
        edit_book =Book.objects.get(pk=pk)
        serializer =BookSerializer(edit_book,many=False)
        return Response(serializer.data)
    def put(self,request,pk):
        edit_book=Book.objects.get(pk=pk)
        serializer =BookSerializer(data=request.data,instance=edit_book)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        else:
            return Response(serializer.errors)
    def delelte(self,request,id):
        edit_obj =Book.objects.get(pk=id).delete()
        return Response("11")

##################################PublishView#######################################方式二

from rest_framework import generics
from rest_framework.mixins import ListModelMixin,CreateModelMixin,UpdateModelMixin,DestroyModelMixin,RetrieveModelMixin

class PublishView(ListModelMixin,CreateModelMixin,generics.GenericAPIView):
    queryset = Publish.objects.all()
    serializer_class = PublishSerializer

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

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

class PublishViewDetail(UpdateModelMixin,DestroyModelMixin,RetrieveModelMixin,generics.GenericAPIView):
    queryset = Publish.objects.all()
    serializer_class = PublishSerializer

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

    def put(self,request,*args,**kwargs):
        return self.update(request,*args,**kwargs)

    def delete(self,request,*args,**kwargs):
        return self.destroy(request,*args,**kwargs)

##############################################AuthorView##################################方式三
class AuthorsView(generics.ListCreateAPIView):
    queryset = Author.objects.all()
    print(queryset)
    serializer_class = AuthorSerializer
    print(serializer_class)

class AuthorsViewDetail(generics.RetrieveUpdateDestroyAPIView):
    queryset = Author.objects.all()
    print(queryset)
    serializer_class = AuthorSerializer
    print(serializer_class)


#############################################AuthorView#ModelView###########################方式四

from rest_framework.viewsets import ModelViewSet

class AuthorsModelView(ModelViewSet):
    queryset = Author.objects.all()
    serializer_class = AuthorSerializer