Question

我无法使用Django Rest API更新图片。我已经浏览了堆栈溢出中的一些类似问题，但没有帮助。

我得到的错误如下：

Exception Value: __init__() got an unexpected keyword argument &#39;files&#39;

views.py

@api_view(['PUT'])
def screenshot(request,uid):
    try:
        details=portal.objects.get(uid=uid)
    except portal.DoesNotExist:
        return Response(status=status.HTTP_404_NOT_FOUND)

    if request.method=='PUT':
        serializer=portalimage(details, data=request.DATA, files=request.FILES)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data,status=status.HTTP_201_CREATED)
        else:
            return Response(serializer.errors,status=status.HTTP_400_BAD_REQUEST)

serializer.py

class portalimage(serializers.ModelSerializer):
    image=serializers.ImageField(use_url=True)
    class Meta:
        model=portal
        fields=('image',)

models.py

image = models.ImageField(upload_to='media/')

我使用curl上传图片

curl -k -X PUT https://localhost/screenshot/5caed0 -d "image=/path/image1.jpg"

回溯

Traceback:
File "/var/www/display/env/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response

132. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/var/www/display/env/lib/python2.7/site-packages/django/views/decorators/csrf.py" in wrapped_view

58. return view_func(*args, **kwargs)
File "/var/www/display/env/lib/python2.7/site-packages/django/views/generic/base.py" in view

71.  return self.dispatch(request, *args, **kwargs)
File "/var/www/display/env/lib/python2.7/site-packages/rest_framework/views.py" in dispatch

456. response = self.handle_exception(exc)
File "/var/www/display/env/lib/python2.7/site-packages/rest_framework/views.py" in dispatch

453. response = handler(request, *args, **kwargs)
File "/var/www/display/env/lib/python2.7/site-packages/rest_framework/decorators.py" in handler

50. return func(*args, **kwargs)
File "/var/www/display/portal/views.py" in screenshot

57.   serializer=portalimage(details, data=request.DATA, files=request.FILES)
File "/var/www/display/env/lib/python2.7/site-packages/rest_framework/serializers.py" in __init__

94. super(BaseSerializer, self).__init__(**kwargs)

Exception Type: TypeError at /screenshot/5caed0
Exception Value: __init__() got an unexpected keyword argument &#39;files&#39;

Answer 1

如果您正在使用DRF v3，则应该可以使用

serializer = portalimage(details, data=request.data)

正如评论中所提到的，文件并不是有效的kwarg，但是在查看DRF ViewSet代码时，没有提及文件，但是（根据经验）它＆＃34;只是工作＆＃34;。

此外，您需要确保将Content-Type标题设置为＆＃34; multipart / form-data＆＃34;

Django RestAPI-通过PUT方法更新图像

1 个答案: