# serializers.py

class PostHyperLink(serializers.HyperlinkedRelatedField):
    view_name = 'post-detail'
    queryset = Post.objects.all()

    def get_url(self, obj, view_name, request, format):
        url_kwargs = {
            'user_id': obj.owner.pk,
            'post_id': obj.pk
        }
        return reverse(view_name, kwargs=url_kwargs, request=request, format=format)

    def get_object(self, view_name, view_args, view_kwargs):
        lookup_kwargs = {
            'user_id': view_kwargs['user_id'],
            'pk': view_kwargs['post_id']
        }
        return self.get_queryset().get(**lookup_kwargs)


class PostListSerializer(serializers.ModelSerializer):
    post_url = PostHyperLink()

    class Meta:
        model = Post
        fields = ['title', 'post_url']
# views.py

class PostListAPIView(generics.ListAPIView):
    queryset = User.objects.all()
    serializer_class = PostListSerializer

    def get_queryset(self):
        user_id = self.kwargs['user_id']
        return Post.objects.filter(owner=user_id)