有关Django-Rest-Framework特殊类的解释及应用

分页相关

page

序列化相关

Serializer

数据验证

validation

序列化相关类

View

路由相关

router

代码示例

基于ModelViewSet自定制

class P2(PageNumberPagination):
    page_size = 3  #每一页显示的条数
    page_query_param = 'page' #获取参数中传入的页码
    page_size_query_param = 'size' #获取url参数中每页显示的数据条数
    max_page_size = 5 # url传入的参数的最大有效值

class IndexSerializer(ModelSerializer):
    x2 = serializers.SerializerMethodField()
    class Meta:
        model = models.UserInfo
        fields = ['name','pwd','x2']
    def get_x2(self, obj):
        return obj.name + 'hello word'


class IndexView(ModelViewSet):
    queryset = models.UserInfo.objects.all()
    serializer_class = IndexSerializer
    pagination_class = P2

##########下面的方法对已覆盖默认的方法,进行自定制#########
    def list(self, request, *args, **kwargs):
        '''获取get请求的所有'''
        pass

    def retrieve(self, request, *args, **kwargs):
        '''查看单条数据'''
        pass
    def destroy(self, request, *args, **kwargs):
        '''删除DELETE'''
        pass
    def create(self, request, *args, **kwargs):
        '''添加数据POST'''
        pass
    def update(self, request, *args, **kwargs):
        '''全部修改PUT'''
        pass
    def partial_update(self, request, *args, **kwargs):
        '''局部修改PATCH'''
        pass

路由的两种方式

urlpatterns = [
url(r'^index/$', views.IndexView.as_view({'get':'list','post':'create'})),
url(r'^index\.(?P[a-z0-9]+)$', views.IndexView.as_view({'get':'list','post':'create'})),
url(r'^index/(?P\d+)/$', views.IndexView.as_view({'get':'retrieve','delete':'destroy','put':'update','patch':'partial_update'})),
url(r'^index(?P\d+)\.(?P[a-z0-9]+)$', views.IndexView.as_view({'get':'retrieve','delete':'destroy','put':'update','patch':'partial_update'})),
]


router = DefaultRouter()
router.register('index',views.IndexViewSet)
urlpatterns = [
    url(r'^', include(router.urls)),
]