How to create breadcrumb in my view function BY mptt - django

Question

How to create breadcrumb in my view function?
class Category(MPTTModel):
name = models.CharField(max_length=50, unique=True)
parent = TreeForeignKey('self', on_delete=models.CASCADE, null=True, blank=True, related_name='children')
slug = models.SlugField( null=True, blank=True)
description = models.TextField(null=True, blank=True)
image = models.ImageField(
upload_to=user_directory_path, default='posts/default.jpg')
def get_absolute_url(self):
return reverse('Category:post_single', args=[self.slug])
class Meta:
ordering = ('-name',)
def __str__(self):
return self.name
class Post(models.Model):
class NewManager(models.Manager):
def get_queryset(self):
return super().get_queryset() .filter(status='published')
options = (
('draft', 'Draft'),
('published', 'Published'),
)
category = TreeForeignKey('Category', on_delete=models.CASCADE, null=True, blank=True)
title = models.CharField(max_length=250)
excerpt = models.TextField(null=True)
image = models.ImageField(
upload_to='uploads/', default='posts/default.jpg')
image_caption = models.CharField(max_length=100, default='Photo by Blog')
slug = models.SlugField(max_length=250, unique_for_date='publish')
publish = models.DateTimeField(default=timezone.now)
author = models.ForeignKey(
User, on_delete=models.CASCADE, related_name='blog_posts')
content = models.TextField()
status = models.CharField(
max_length=10, choices=options, default='published')
favourites = models.ManyToManyField(
User, related_name='favourite', default=None, blank=True)
likes = models.ManyToManyField(
User, related_name='like', default=None, blank=True)
like_count = models.BigIntegerField(default='0')
views = models.PositiveIntegerField(default=0)
thumbsup = models.IntegerField(default='0')
thumbsdown = models.IntegerField(default='0')
thumbs = models.ManyToManyField(User, related_name='thumbs', default=None, blank=True)
objects = models.Manager() # default manager
newmanager = NewManager() # custom manager
def get_absolute_url(self):
return reverse('blog:post_single', args=[self.slug])
class Meta:
ordering = ('-publish',)
def __str__(self):
return self.title
#views
def post_single(request, post):
post = get_object_or_404(Post, slug=post, status='published')
postcat = Post.objects.filter(category=post.category)
fav = bool
if post.favourites.filter(id=request.user.id).exists():
fav = True
allcomments = post.comments.filter(status=True)
page = request.GET.get('page', 1)
paginator = Paginator(allcomments, 10)
try:
comments = paginator.page(page)
except PageNotAnInteger:
comments = paginator.page(1)
except EmptyPage:
comments = paginator.page(paginator.num_pages)
user_comment = None
if request.method == 'POST':
comment_form = NewCommentForm(request.POST)
if comment_form.is_valid():
user_comment = comment_form.save(commit=False)
user_comment.post = post
user_comment.save()
return HttpResponseRedirect('/' + post.slug)
else:
comment_form = NewCommentForm()
session_key = 'view_post_{}'.format(post)
if not request.session.get(session_key,False):
post.views +=1
post.save()
request.session[session_key] = True
return render(request, 'blog/single.html', {'post': post,'Category': Category.objects.all(),'Category2': postcat,
'comments': user_comment, 'comments': comments, 'comment_form': comment_form, 'allcomments': allcomments, 'fav': fav})
blog/single.html
{{ node.name }}
I want in my single post info (post_single) breadcrumb with category. Something like this: Category > Subcategory > Sub-Subcategory .,,,
Someone told me to use get_ancestors:
Example:
<nav aria-label="breadcrumb">
<ol class="breadcrumb">
<li class="breadcrumb-item">🏠</li>
{% for node in post.category.ancestors %}
<li class="breadcrumb-item">{{node.name}}</li>
{% endfor %}
<li class="breadcrumb-item active" aria-current="page">{{ object }}</li>
</ol>
</nav>
{{ post.category }}
How to implement this with my model?
Thank you. I would be grateful.