How to display related objects in a separate ListView?

Question

Django

Good afternoon!
I can't figure out how to do it right.
Let's say we have the following models:

class Post(models.Model):
    ...

class Comment(models.Model):
    ...
    post = models.ForeignKey(Post)

To display a list of posts, use:

class PostListView(ListView):
    model = Post

Comments for each post should be displayed on a separate page, for example, for a post with ID 2, this is: /posts/2/comments/
At the moment, the comment list view looks like this:

# views.py

class CommentListView(ListView):
    model = Comment
    
    def get_queryset(self):
        return Comment.objects.filter(post=self.kwargs.get('post_pk'))

# urls.py
url(r'^post/(?P<post_pk>\d+)/comments/$', CommentListView.as_view(), name='comment-list')

It seems to work, but what if you need to organize a more complex structure. For example /countries/1/regions/3/city/2 ? Do everything by hand?

Answer 1

Well, yes. Add the rest manually in get_context_data.
By the way, I advise you to replace get_queryset with:

def get_queryset(self):
    return super().get_queryset().filter(post=self.kwargs.get('post_pk'))

Answer 2

If I understood you correctly, then for /countries/1/regions/3/city/2 in urls.py there should be something like
And redo the get_queryset method accordingly

Answer 3

django-filter