关于python:django rest framework:序列化程序响应错误

Django Rest Framework: serializer response error

我在DRF中的视图集有问题：

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def get_queryset(self):
"""
:return: filtered queryset based on request query_param

"""
# todo#amedeo: improve the readability code
qs = super(ChecklistViewSet, self).get_queryset()
_pk = self.kwargs['pk']

if self.request.method == 'PUT':
instance = qs.filter(pk=int(_pk)).first()
# pass in the instance we want to update
serializer = ChecklistSerializer(instance, self.request.data)

# validate and update
if serializer.is_valid():
serializer.save()
serializer_dict = serializer.data
serializer_dict["message"] ="Checklist updated successfully."
return response.Response(serializer_dict, status=status.HTTP_200_OK)

else:
return response.Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

在我的代码中，objetc被保存，但是响应给出了一个错误，即：

AttributeError: 'Response' object has no attribute 'model'

我的序列化程序是：

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class ChecklistSerializer(serializers.ModelSerializer):

class Meta:
model = Checklist
fields = ('id', 'approved_by', 'role', 'hardship_classification',
'total_capacity', 'capacity_for_residents', 'checklist_type',
'state', 'pdf', 'submitting_afp', 'disabled', 'location')

我通过传递json的client-put方法调用：

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{
"approved_by":"Test",
"role":"test_role_4",
"hardship_classification":"test_6",
"total_capacity":"50",
"capacity_for_residents":"350",
"checklist_type":"permanent",
"state":"qcl_draft",
"pdf": null,
"submitting_afp": 3999,
"disabled": false,
"location": 97
}

但我收到了那个错误。模型已保存，但响应给出了错误

Internal Server Error: /api/v1/checklists/3/
Traceback (most recent call last):
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/django/core/handlers/exception.py", line 41, in inner
response = get_response(request)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
return view_func(*args, **kwargs)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/rest_framework/viewsets.py", line 116, in view
return self.dispatch(request, *args, **kwargs)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/rest_framework/views.py", line 495, in dispatch
response = self.handle_exception(exc)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/rest_framework/views.py", line 455, in handle_exception
self.raise_uncaught_exception(exc)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/rest_framework/views.py", line 483, in dispatch
self.initial(request, *args, **kwargs)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/rest_framework/views.py", line 401, in initial
self.check_permissions(request)
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/rest_framework/views.py", line 334, in check_permissions
if not permission.has_permission(request, self):
File"/home/adifilippo/.envs/accomodation/local/lib/python2.7/site-packages/rest_framework/permissions.py", line 206, in has_permission
perms = self.get_required_permissions(request.method, queryset.model)
AttributeError: 'Response' object has no attribute 'model'
"PUT /api/v1/checklists/3/ HTTP/1.1" 500 42934

在这里输入代码