Django Rest Framework文件上传

一尘不染

Django Rest Framework文件上传

django

我正在使用Django Rest Framework和AngularJs上传文件。我的视图文件如下所示：

class ProductList(APIView):
    authentication_classes = (authentication.TokenAuthentication,)
    def get(self,request):
        if request.user.is_authenticated(): 
            userCompanyId = request.user.get_profile().companyId
            products = Product.objects.filter(company = userCompanyId)
            serializer = ProductSerializer(products,many=True)
            return Response(serializer.data)

    def post(self,request):
        serializer = ProductSerializer(data=request.DATA, files=request.FILES)
        if serializer.is_valid():
            serializer.save()
            return Response(data=request.DATA)

由于post方法的最后一行应返回所有数据，因此我有几个问题：

如何检查里面是否有东西request.FILES？
如何序列化文件字段？
我应该如何使用解析器？

阅读 1313

2020-03-26

一尘不染

使用FileUploadParser，一切都在请求中。改用put方法，你会在docs中找到一个示例：)

class FileUploadView(views.APIView):
    parser_classes = (FileUploadParser,)

    def put(self, request, filename, format=None):
        file_obj = request.FILES['file']
        # do some stuff with uploaded file
        return Response(status=204)

2020-03-26

一尘不染

我使用的是同一堆栈，也在寻找文件上传的示例，但是由于我使用ModelViewSet而不是APIView，因此我的情况更简单。原来的钥匙是pre_save钩子。我最终将其与angular-file-upload模块一起使用，如下所示：

# Django
class ExperimentViewSet(ModelViewSet):
    queryset = Experiment.objects.all()
    serializer_class = ExperimentSerializer

    def pre_save(self, obj):
        obj.samplesheet = self.request.FILES.get('file')

class Experiment(Model):
    notes = TextField(blank=True)
    samplesheet = FileField(blank=True, default='')
    user = ForeignKey(User, related_name='experiments')

class ExperimentSerializer(ModelSerializer):
    class Meta:
        model = Experiment
        fields = ('id', 'notes', 'samplesheet', 'user')

// AngularJS
controller('UploadExperimentCtrl', function($scope, $upload) {
    $scope.submit = function(files, exp) {
        $upload.upload({
            url: '/api/experiments/' + exp.id + '/',
            method: 'PUT',
            data: {user: exp.user.id},
            file: files[0]
        });
    };
});

2020-03-26

Django Rest Framework文件上传

共2个答案