Question

我正在尝试使用序列化程序在Django Rest Framework中上传CSV文件。

下面的图像提供了包含模型，视图和序列化器的代码以及当我尝试提交CSV文件时控制台输出的图像。

在我验证print（serializer.initial_data）之前，在验证序列化程序之前，序列化程序内部有一个文件，但是一旦序列化程序进行验证，它说没有文件提交。

models.py

class InventoryFile(models.Model):
    shop           = models.ForeignKey(Shop,on_delete=models.CASCADE)
    shop_inventory = models.FileField(upload_to='inventory/')

serializers.py

class InventoryFile_Serializer(serializers.ModelSerializer):
    class Meta:
        model = InventoryFile
        fields = ('shop_inventory',)

views.py

class InvertoryUpload(APIView):
    serializer_class = InventoryFile_Serializer
    parser_classes = [ MultiPartParser,FormParser ]

    def post(self,request):
        try:
            serializer = InventoryFile_Serializer(data=request.data)
            print(serializer.initial_data)

            if serializer.is_valid():
                print(serializer.data)
                return Response("Done")
            else:
                print(serializer.errors)
                return Response("Not Done")

        except Exception as e:
            return Response(str(e))

输出

System check identified no issues (0 silenced).
January 30, 2019 - 11:22:06
Django version 2.1, using settings 'hoplet.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
<QueryDict: {'inventory': [<InMemoryUploadedFile: MOCK_DATA_2.csv (application/vnd.ms-excel)>]}>
{'shop_inventory': [ErrorDetail(string='No file was submitted.', code='required')]}
[30/Jan/2019 11:22:18] "POST /uploadinv HTTP/1.1" 200 10

Answer 1

请求中的文件的密钥名称为inventory，而序列化程序正在寻找的密钥名称为is shop_inventory。它们应该是相同的。更改其中之一，它应该可以工作。

Answer 2

Please try in this way        

urls.py
              urlpatterns = [
            url(r'^', include(router.urls)),
            url(r'^upload_file', InvertoryUpload.as_view())

        ]

        models.py

        class InventoryFile(models.Model):
            shop = models.ForeignKey(Shop,on_delete=models.CASCADE)
            shop_inventory = models.FileField(upload_to='inventory/')


        views.py

        from rest_framework.parsers import MultiPartParser, FormParser
        from rest_framework.generics import CreateAPIView

        class InvertoryUpload(CreateAPIView):
            serializer_class = InventoryFile_Serializer
            parser_classes = [ MultiPartParser, FormParser ]

        serializers.py

        class InventoryFile_Serializer(serializers.ModelSerializer):

            class Meta:
                model = InventoryFile
                fields = ('shop_inventory','shop')

Django Rest Framework-导入CSV（“未提交文件”）

2 个答案: