我对 django-rest-framework 很陌生。我正在尝试将示例无限深度嵌套和超链接用于drf-nested-routers中的嵌套资源
我添加了一个 MailReply 对象只是为了尝试无限深度嵌套。当我尝试访问收件人时，它给了我这个 AttributeError。
AttributeError at /api/clients/1/maildrops/1/recipients/
'MailRecipient' object has no attribute 'maildrop'
序列化程序.py
class MailReplySerializer(NestedHyperlinkedModelSerializer):
parent_lookup_kwargs = {
'mailrecipient_pk' : 'mailrecipient__pk',
}
class Meta:
model = MailReply
fields = ('id','url','title',)
class MailRecipientMailReplySerializer(NestedHyperlinkedModelSerializer):
parent_lookup_kwargs = {
'mailrecipient_pk' : 'mailrecipient__pk',
}
class Meta:
model = MailReply
fields = ('url','title')
class MailRecipientSerializer(NestedHyperlinkedModelSerializer):
parent_lookup_kwargs = {
'maildrop_pk' : 'maildrop__pk',
}
class Meta:
model = MailRecipient
fields = ('id','url','name','mailreplies')
mailreplies = MailRecipientMailReplySerializer(many=True, read_only=True)
class MailDropMailRecipientSerializer(NestedHyperlinkedModelSerializer):
parent_lookup_kwargs = {
'maildrop_pk' : 'maildrop__pk'
}
class Meta:
model = MailRecipient
fields = ('url','name')
class MailDropSerializer(NestedHyperlinkedModelSerializer):
parent_lookup_kwargs = {
'client_pk' : 'client__pk'
}
class Meta:
model = MailDrop
fields = ('id','url','title','recipients')
recipients = MailDropMailRecipientSerializer(many=True, read_only=True)
class ClientMailDropSerializer(NestedHyperlinkedModelSerializer):
parent_lookup_kwargs = {
'client_pk' : 'client__pk',
}
class Meta:
model = MailDrop
fields = ('url','title',)
class ClientSerializer(HyperlinkedModelSerializer):
class Meta:
model = Client
fields = ('id','url','name','maildrops')
maildrops =ClientMailDropSerializer(many=True, read_only=True)
视图.py
class ClientViewSet(viewsets.ViewSet):
serializer_class = ClientSerializer
queryset = Client.objects.all()
def list(self, request,):
queryset = Client.objects.filter()
serializer = ClientSerializer(queryset, many=True, context={'request': request})
return Response(serializer.data)
def retrieve(self, request, pk=None):
queryset = Client.objects.filter()
client = get_object_or_404(queryset, pk=pk)
serializer = ClientSerializer(client, context={'request': request})
return Response(serializer.data)
class MailDropViewSet(viewsets.ViewSet):
serializer_class = MailDropSerializer
def list(self, request, client_pk=None):
queryset = MailDrop.objects.filter(client=client_pk)
serializer = MailDropSerializer(queryset, many=True, context={'request': request})
return Response(serializer.data)
def retrieve(self, request, pk=None, client_pk=None):
queryset = MailDrop.objects.filter(pk=pk, client=client_pk)
maildrop = get_object_or_404(queryset, pk=pk)
serializer = MailDropSerializer(maildrop, context={'request': request})
return Response(serializer.data)
class MailRecipientViewSet(viewsets.ViewSet):
serializer_class = MailRecipientSerializer
def list(self, request, client_pk=None, maildrop_pk=None):
queryset = MailRecipient.objects.filter(mail_drop__client=client_pk, mail_drop=maildrop_pk)
serializer = MailRecipientSerializer(queryset, many=True, context={'request': request})
return Response(serializer.data)
def retrieve(self, request, pk=None, client_pk=None, maildrop_pk=None):
queryset = MailRecipient.objects.filter(pk=pk, mail_drop=maildrop_pk, mail_drop__client=client_pk)
maildrop = get_object_or_404(queryset, pk=pk)
serializer = MailRecipientSerializer(maildrop, context={'request': request})
return Response(serializer.data)
class MailReplyViewSet(viewsets.ViewSet):
serializer_class = MailReplySerializer
def list(self, request, client_pk=None, maildrop_pk=None, mailrecipient_pk=None):
queryset = MailReply.objects.filter(mail_recipient=mailrecipient_pk, mail_recipient__mail_drop=maildrop_pk, mail_recipient__mail_drop__client=client_pk)
serializer = MailReplySerializer(queryset, many=True, context={'request': request})
return Response(serializer.data)
def retrieve(self, request, pk=None, client_pk=None, maildrop_pk=None, mailrecipient_pk=None):
queryset = MailReply.objects.filter(pk=pk, mail_recipient=mailrecipient_pk, mail_recipient__mail_drop=maildrop_pk, mail_recipient__mail_drop__client=client_pk)
mailreply = get_object_or_404(queryset, pk=pk)
serializer = MailReplySerializer(mailreply, context={'request': request})
return Response(serializer.data)
非常感谢任何建议或示例，在此先感谢。