深入解析前后端分离组件django-rest_framework IV

from rest_framework.parsers import JSONParser,FormParser
class PublishViewSet(generics.ListCreateAPIView):
    parser_classes = [FormParser,JSONParser]
    queryset = Publish.objects.all()
    serializer_class = PublshSerializers
    def post(self, request, *args, **kwargs):
        print("request.data",request.data)
        return self.create(request, *args, **kwargs)

REST_FRAMEWORK={
    "DEFAULT_AUTHENTICATION_CLASSES":["app01.service.auth.Authentication",],
    "DEFAULT_PERMISSION_CLASSES":["app01.service.permissions.SVIPPermission",],
    "DEFAULT_THROTTLE_CLASSES":["app01.service.throttles.VisitThrottle",],
    "DEFAULT_THROTTLE_RATES":{
        "visit_rate":"5/m",
    },
    "DEFAULT_PARSER_CLASSES":['rest_framework.parsers.FormParser',]
}

DEFAULTS = {
    # Base API policies
    'DEFAULT_PARSER_CLASSES': (
        'rest_framework.parsers.JSONParser',
        'rest_framework.parsers.FormParser',
        'rest_framework.parsers.MultiPartParser'
    ),

from rest_framework.pagination import PageNumberPagination,LimitOffsetPagination
class PNPagination(PageNumberPagination):
        page_size = 1     # 每页显示的数据个数
        page_query_param = 'page'    #翻页的参数  ?page=num
        page_size_query_param = "size"    #每页临时显示的数据个数  覆盖page_size
        max_page_size = 5     #每页允许显示的最大条数
class BookViewSet(viewsets.ModelViewSet):
    queryset = Book.objects.all()
    serializer_class = BookSerializers
    def list(self,request,*args,**kwargs):
　　　　　# 单写某个视图时的用法
        book_list=Book.objects.all()
        pp=LimitOffsetPagination()
        pager_books=pp.paginate_queryset(queryset=book_list,request=request,view=self)
        print(pager_books)
        bs=BookSerializers(pager_books,many=True)
        #return Response(bs.data)
        return pp.get_paginated_response(bs.data)

from rest_framework.pagination import LimitOffsetPagination

from rest_framework.views import APIView
from .models import UserInfo
from rest_framework.response import Response
from rest_framework import serializers
from rest_framework.pagination import CursorPagination
class MyPagination(CursorPagination):
    # URL传入的游标参数
    cursor_query_param = 'cursor'
    # 默认每页显示的数据条数
    page_size = 2
    # URL传入的每页显示条数的参数
    page_size_query_param = 'page_size'
    # 每页显示数据最大条数
    max_page_size = 1000
    # 根据ID从大到小排列
    ordering = "id"
class PagerSerialize(serializers.ModelSerializer):
    '''数据序列化'''
    class Meta:
        model = UserInfo
        fields = "__all__"
        depth = 2     #用于显示关联字段的对应的表的详细内容
class PagerView(APIView):
    def get(self,request,*args,**kwargs):
        user_list=UserInfo.objects.all().order_by('-id')  #将数据按照id从大到小排序
        #根据url参数，获取分页数据
        obj=MyPagination()
        page_user_list=obj.paginate_queryset(user_list,request,self)
        #数据进行序列化
        ser=PagerSerialize(instance=page_user_list,many=True)
        response=obj.get_paginated_response(ser.data)  #返回带上下页连接的数据
        return response
        # return Response(ser.data)   #不含上下页链接

from rest_framework import routers

DEFAULTS = {
    # Base API policies
    'DEFAULT_RENDERER_CLASSES': (
        'rest_framework.renderers.JSONRenderer',
        'rest_framework.renderers.BrowsableAPIRenderer',
    ),

from rest_framework.renderers import JSONRenderer

class APIView(View):
    # 版本控制的默认配置    可以在局部中定义versoning_class=的自定义配置
    versioning_class = api_settings.DEFAULT_VERSIONING_CLASS
     def initial(self, request, *args, **kwargs):
        #  版本控制相关
        # Determine the API version, if versioning is in use.
        version, scheme = self.determine_version(request, *args, **kwargs)
        request.version, request.versioning_scheme = version, scheme

REST_FRAMEWORK = {
             ....
'DEFAULT_VERSIONING_CLASS':'rest_framework.versioning.URLPathVersioning',
             'ALLOWED_VERSIONS':['v1','v2'], # 允许的版本
             'VERSION_PARAM':'version', # 参数
             'DEFAULT_VERSION':'v1', # 默认版本
             ....
      }

BeesCity/urls.py
             urlpatterns = [
                    #url(r'^admin/', admin.site.urls),
                    url(r'^api/(?P<version>\w+)/', include('api.urls')),
             ]
      api/urls.py
             urlpatterns = [
                    url(r'^course/$', course.CourseView.as_view()),
             ]

http://127.0.0.1:8000/api/v1/course/

from rest_framework.versioning import QueryParameterVersioning
class Course(APIView):
    versioning_class = QueryParameterVersioning

http://127.0.0.1:8000/api/course/?version=1