Django - rest - framework - 下

一、视图三部曲

使用混合（mixins）

之前得视图部分

# urls.py

from django.conf.urls import url
from django.contrib import admin

from app01 import views

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^publishes/$', views.PublishView.as_view(),name="publish"),
    url(r'^publishes/(?P<pk>\d+)/$', views.PublishDetailView.as_view(),name="detail_publish"),
    url(r"^books/$", views.BookView.as_view(),name="books"),
    url(r'^books/(?P<pk>\d+)/$',views.BookDetailView.as_view(),name="detail_book")

]

------------------------------------------------------

# views.py

from rest_framework.views import APIView, Response
from app01.serializers import *


class PublishView(APIView):
    def get(self, request):
        publish_list = Publish.objects.all()
        ret = PublishModelSerializers(publish_list, many=True)
        return Response(ret.data)

    def post(self, request):
        ps = PublishModelSerializers(data=request.data)
        if ps.is_valid():
            ps.save()
            return Response(ps.data)
        else:
            return Response(ps.errors)

class PublishDetailView(APIView):
    def get(self,request,pk):
        publish = Publish.objects.filter(pk=pk).first()
        ps = PublishModelSerializers(publish)
        return Response(ps.data)

    def put(self,request,pk):
        publish = Publish.objects.filter(pk=pk).first()
        ps = PublishModelSerializers(publish,data=request.data)
        if ps.is_valid():
            ps.save()
            return Response(ps.data)
        else:
            return Response(ps.errors)

    def delete(self,request,pk):
        Publish.objects.filter(pk=pk).delete()
        return Response()
    
class BookView(APIView):
    def get(self, request):
        book_list = Book.objects.all()
        ret = BookModelSerializers(book_list, many=True,context={"request":request})
        return Response(ret.data)

    def post(self, request):
        bms = BookModelSerializers(data=request.data, many=False,context={"request":request})
        if bms.is_valid():
            bms.save()
            return Response(bms.data)
        else:
            return Response(bms.errors)


class BookDetailView(APIView):
    def get(self,request,pk):
        book = Book.objects.filter(pk=pk).first()
        # 序列化
        bms = BookModelSerializers(book,context={"request":request})
        return Response(bms.data)

    def put(self,request,pk):
        book = Book.objects.filter(pk=pk).first()
        bms = BookModelSerializers(book,data=request.data,context={"request":request})
        if bms.is_valid():
            bms.save()
            return Response(bms.data)
        else:
            return Response(bms.errors)

    def delete(self,reqeust,pk):
        Book.objects.filter(pk=pk).delete()
        return Response()

---------------------------------------------------
# serializers.py

# -*- coding:utf-8 -*-
from .models import *
from rest_framework import serializers


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


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

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()
    publish = models.ForeignKey("Publish")
    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

models.py

mixin类编写视图

使用通用的基于类的视图

viewsets.ModelViewSet