Question

我在django rest_framework中创建了一个api，我正在用邮递员对其进行测试 GET ,DELETE方法没有任何问题，但是在PUT ,POST方法中，它提供了一些错误。

这是我在views.py中的Book_list视图：

class Book_list(mixins.ListModelMixin,
                mixins.CreateModelMixin,
                generics.GenericAPIView):
    queryset = Book.objects.all()
    serializer_class = Bookserializer

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

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

这是我在views.py中的Book_detail视图：

class Book_detail(mixins.RetrieveModelMixin,
                  mixins.UpdateModelMixin,
                  mixins.DestroyModelMixin,
                  generics.GenericAPIView):

    queryset = Book.objects.all()
    serializer_class = Bookserializer

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

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

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

这是我的Bookserializer在serializers.py中：

class Bookserializer(serializers.ModelSerializer):
    class Meta():
        model = Book
        fields = ('id','name','publisher',
                  'author','isbn','genere')

这是我的应用的urls.py：

from django.urls import path , re_path ,register_converter,include
from rest_framework import routers
from . import views

urlpatterns = [

    path('Books' , views.Book_list.as_view() ,
    name = 'Book_L_2'),
    path('Book/<int:pk>' , views.Book_detail.as_view() ,
    name = 'Book_D_2'),
    path('Authors' , views.Author_list.as_view() ,
    name = 'Author_L_2'),
    path('Author/<int:pk>' , views.Author_detail.as_view() ,
    name = 'Author_D_2'),

]

但是当我想用 POSTMAN POST跟随json（api2 / Books url）时：

{
        "name": "biganeh",
        "publisher": "ghoghnoos",
        "author": 2,
        "isbn": 4,
        "genere": "Horror"
    }

发生此错误：

 AttributeError at /api2/Books
'Book_list' object has no attribute 'data'

这意味着request.data不存在！该如何解决？

Answer 1

由于通过Book_detail类中的参数阻止了POST＆PUT方法，因此仅指定了PUT，DELETE和GET方法。这也是阻止http请求方法的一种方法。如下更改代码，

class Book_detail(mixins.RetrieveModelMixin,
              mixins.UpdateModelMixin,
              mixins.DestroyModelMixin,
              mixins.CreateModelMixin,
              mixins.UpdateModelMixin,
              generics.GenericAPIView):

queryset = Book.objects.all()
serializer_class = Bookserializer

任何问题都可以通过此链接访问Mixins views

我的建议是改为指定您可以使用ModelViewset

django rest框架http发布方法问题

1 个答案: