如何获取相关对象发布？

Question

问题很简单。我有一个func lazy_load_posts（），它通过AJAX请求将我所有的模型注释附加到所有相同的文章上，但是我只需要将相关注释附加到一篇文章上。我已经尝试过filter方法和prefetch_related，但是没有用。我还收到控制台POST http://localhost:8000/lazy_load_posts/ 500错误（内部服务器错误）

我的view.py

PhotoDetailView（DetailView）类：

queryset = Photo.objects.select_related('user').prefetch_related('comments', 'comments__user', 'likes')
context_object_name = 'photo'
template_name = 'photo_detail.html'

def get_success_url(self):
    return reverse('photo_detail', kwargs={'pk': self.object.pk})

def get_context_data(self, **kwargs):
    context = super(PhotoDetailView, self).get_context_data(**kwargs)
    comments = self.object.comments.all()[:5]
    context['comments'] = comments
    context['form'] = AddCommentForm(initial={'post': self.object.pk})
    context['is_liked_by_user'] = self.request.user in self.object.likes.all()

    return context

def lazy_load_posts（请求）：

    page = request.POST.get('page')
    comments = Comment.objects.all()
    results_per_page = 5
    paginator = Paginator(comments, results_per_page)
    try:
        comments = paginator.page(page)
    except PageNotAnInteger:
        comments = paginator.page(2)
    except EmptyPage:
        comments = paginator.page(paginator.num_pages)
    posts_html = loader.render_to_string(
        'comments.html',
        {'comments': comments}
    )
    output_data = {
        'posts_html': posts_html,
        'has_next': comments.has_next(),
    }
    return JsonResponse(output_data)


and my script.js

$('#lazyLoadLink').on('click', function() {
    var link = $(this);
    var page = link.data('page');
    $.ajax({
      type: 'post',
      url: '/lazy_load_posts/',
      data: {
        'page': page,
        'csrfmiddlewaretoken': window.CSRF_TOKEN
      },
      success: function(data) {
        console.log(data)
        if (data.has_next) {
            link.data('page', page+1);
        } else {
          link.hide();
        }

        $('#posts').append(data.posts_html);
      },
      error: function(xhr, status, error) {

      }
    });
  });