我最近从 drf 2.4 升级到 v3，并一直在尝试覆盖def Create在我的一个视图集中。但是，当尝试访问我保存到序列化器变量的 request.data 时，我会收到错误：KeyError at /api/appointments/
'id'
我包括我的 ViewSet 代码、序列化器和以下错误的回溯：
class AppointmentViewSet(viewsets.ModelViewSet):
queryset = Appointment.objects.all()
serializer_class = AppointmentSerializer
permission_classes = (permissions.IsAuthenticatedOrReadOnly,
IsOwnerOrReadOnly,)
def create(self, request):
serializer = AppointmentSerializer(data=request.data)
if serializer.is_valid(raise_exception=True):
#get the datetime object from the request data and filter availability objects, datetime stored in attribute .when
avQueryset = Availability.objects.filter(date__range=(serializer.data.when, serializer.data.when))
def pre_save(self, obj):
obj.service_recipient = self.request.user
串行器
class AppointmentSerializer(serializers.ModelSerializer):
class Meta:
model = Appointment
fields = ('id','availability' , 'business_location', 'services', 'when', 'service_recipient', 'completed')
repr(serializer)
AppointmentSerializer():
id = IntegerField(label='ID', read_only=True)
availability = PrimaryKeyRelatedField(queryset=Availability.objects.all())
business_location = PrimaryKeyRelatedField(queryset=BusinessLocation.objects.all())
services = PrimaryKeyRelatedField(many=True, queryset=Service.objects.all())
when = DateTimeField(allow_null=True, required=False)
service_recipient = PrimaryKeyRelatedField(queryset=User.objects.all())
completed = BooleanField(help_text='Set to true when appointment has been completed.', required=False)
追溯
Environment:
Request Method: POST
Request URL: http://104.131.110.138/api/appointments/
Django Version: 1.7.1
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'webapp',
'rest_framework')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware')
Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
111. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/views/decorators/csrf.py" in wrapped_view
57. return view_func(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/viewsets.py" in view
85. return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/views.py" in dispatch
407. response = self.handle_exception(exc)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/views.py" in dispatch
404. response = handler(request, *args, **kwargs)
File "/home/appointments/appointments/webapp/views.py" in create
57. avQueryset = Availability.objects.filter(date__range=(serializer.data.when, serializer.data.when))
File "/usr/local/lib/python2.7/dist-packages/rest_framework/serializers.py" in data
422. ret = super(Serializer, self).data
File "/usr/local/lib/python2.7/dist-packages/rest_framework/serializers.py" in data
179. self._data = self.to_representation(self.validated_data)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/serializers.py" in to_representation
387. attribute = field.get_attribute(instance)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/fields.py" in get_attribute
277. return get_attribute(instance, self.source_attrs)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/fields.py" in get_attribute
65. instance = instance[attr]
Exception Type: KeyError at /api/appointments/
Exception Value: 'id'
