Hit counter for Django blog post - django

Question

In my search to find a way to add hit counter to my blog posts without any third party library I found this answer on StackOverflow.
However as I'm not a Django expert I can't figure out how to use that Mixin with my view.
Here's how my model is defined:
class Post(models.Model):
STATUS_CHOICES = (('draft', 'Draft'), ('published', 'Published'))
title = models.CharField(max_length=250)
slug = models.SlugField(max_length=250, unique_for_date='publish')
author = models.ForeignKey(User, on_delete=models.CASCADE, related_name='blog_posts')
body = models.TextField()
publish = models.DateTimeField(default=timezone.now)
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
status = models.CharField(max_length=10, choices=STATUS_CHOICES, default='draft')
And my views:
def post_list(request):
posts = Post.published.all()
return render(request, 'blog/post/list.html', {'posts': posts})
class PostDetailView(DetailView):
model = Post
context_object_name = 'post'
And here's the mixin provided in that answer:
class BlogPostCounterMixin(object):
def get_context_data(self, **kwargs):
context = super(BlogPostCounterMixin, self).get_context_data(**kwargs)
blog_post_slug = self.kwargs['slug']
if not blog_post_slug in self.request.session:
bp = BlogPost.objects.filter(slug=blog_post_slug).update(counter=+1)
# Insert the slug into the session as the user has seen it
self.request.session[blog_post_slug] = blog_post_slug
return context
I would ask the user provided that answer, but he's inactive for more than 2 years.
Appreciate your help.

Answer 1

you can create a IntegerField called views in your Model
then in your post_detail view you could do this just before return statement
post.views += 1
post.save(update_fields=['views'])
Obviously this solution has the drawback of some views that happen at exactly the same moment being missed.
Edit:
before using a mixin you must first use a class based view instead of a function based view then you can use this mixin and in your case you would want to use a DetailView
https://docs.djangoproject.com/en/3.2/ref/class-based-views/generic-display/#detailview
class BlogPostCounterMixin:
def get_object(self, *args, **kwargs):
# get_object will be available if you use a DetailView
obj = super().get_object(*args, **kwargs):
post_unique_key = 'post_%s' % obj.pk # or whatever unique key is
if not post_unique_key in self.request.session:
obj.views += 1
obj.save(update_fields=['views'])
self.request.session[post_unique_key] = post_unique_key
return obj
and can be used like this
class PostDetailView(BlogPostCounterMixin, DetailView):
model = Post
context_object_name = 'post'