显示已联系租金

Question

许多用户可以联系租金购买。我想显示已联系特定租金的所有用户的列表。我应该创建一个UserAPIView并在那里显示或显示RentDetail中的用户列表？哪一个是最好的设计？

这是我的模型和序列化器

class Rental(models.Model):
    user = models.ForeignKey(User)
    name = models.CharField(max_length=300, blank=False, null=False)
    phone_number = models.PositiveIntegerField(null=False, blank=False)

class Contact(models.Model):
    buyer = models.ForeignKey(User)
    rental = models.ForeignKey(Rental, related_name="rent")
    phone_number = models.PositiveIntegerField(null=False, blank=False)
    buyer_choice = models.CharField(choices=BUYER_CHOICES, max_length=1, null=False, blank=False)


class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ('username', 'email',)

class RentalSerializer(serializers.ModelSerializer):
    user = serializers.ReadOnlyField(source='user.username')
    galleries = GallerySerializer(many=True)
    class Meta:
        model = Rental
        fields = ('__all__')

class UserAPI(APIView):
    def get(self, request, format=None):
        """
        List all the users
        """
        reply = {}
        try:
            users = User.objects.all()
            reply['data'] = UserSerializer(users, many=True).data
        except:
            reply['data'] = []
        return Response(reply, status.HTTP_200_OK)


class RentAPIView(APIView):
    def get(self, request, token=None, format=None):
        """
         Returns a list of rents (or just rent if token is given)
        """
        reply = {}
        try:
            rents = Rental.objects.filter(user=request.user)
            buyer_id = self.request.query_params.get('buyer_id', None)
            if buyer_id:
                print ('buyer_id', buyer_id)
                rents = rents.filter(rent__buyer__id=buyer_id)
            if token:
                rent = rents.get(id=token)
                reply['data'] = RentalSerializer(rent).data
            else:
                reply['data'] = RentalSerializer(rents, many=True).data
        except Rental.DoesNotExist:
            return error.RequestedResourceNotFound().as_response()
        except:
            return error.UnknownError().as_response()
        else:
            return Response(reply, status.HTTP_200_OK)