How to display MMTP tree comments?

Question

Django

model.py

from django.db import models
from posts.models import Post
from django.utils import timezone
from django.conf import settings
from mptt.models import MPTTModel, TreeForeignKey

class Comment(MPTTModel):
  post = models.ForeignKey(Post, related_name='comments', on_delete=models.CASCADE)
  author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
  content = models.TextField()
  date_add = models.DateTimeField(default=timezone.now)
  approved_comment = models.BooleanField(default=False)
  parent = TreeForeignKey('self', related_name='children',null=True, blank=True, db_index=True, on_delete=models.CASCADE)

  class MPTTMeta:
    order_insertion_by = ['content']

  def approve(self):
    self.approved_comment = False
    self.save()

  def get_absolute_url(self):
    return reverse('post', kwargs={'slug': self.slug})

  def __str__(self):
    return self.content

views.py

from django.shortcuts import render
from comments.forms import CommentForm
from posts.models import Post
from django.http import HttpResponseRedirect
from django.urls import reverse

def add_comment(request, slug):
  if request.method == 'POST':
    comment_form = CommentForm(data=request.POST)
    if comment_form.is_valid():
      comment = comment_form.save(commit=False)
      comment.post = Post.objects.get(slug=slug)
      comment.author = request.user
      comment.save()
  return HttpResponseRedirect(reverse('posts:fullstory', kwargs={'slug': slug}))

forms.py

from django import forms
from comments.models import Comment

class CommentForm(forms.ModelForm):
  class Meta():
    model = Comment
    fields = ('content',)

  def __init__(self, *args, **kwargs):
    super(CommentForm, self).__init__(*args, **kwargs)
    self.fields['content'].label = ""

How to display and add a reply in a template?
Help

Answer 1

Example from documentation :

<ul class="root">
    {% recursetree comments %}
        <li>
            {{ node.content }}
            {% if not node.is_leaf_node %}
                <ul class="children">
                    {{ children }}
                </ul>
            {% endif %}
        </li>
    {% endrecursetree %}
</ul>