Creating Reddit Styled Comment System with Django

Published: 06/28/2019

Okay, so you are probably blogging in this platform and have used the comment system once in a while. Those who have will notice that the comment system is pretty much like reddit without the upvote and downvote feature. This is actually pretty simple to create and can be created using only one django template which calls itself recursively! Yes you heard that right, recursing on django templates. It might sound pretty fancy, but is basically a very simple idea.

So let's begin with the model. We create a simple django model with the following fields

  • user (a foreign key to user referring to the author of the comment)
  • article (a foreign key to article referring to the article on which the comment was made)
  • content (the content of the comment)
  • parent (a self-referential field referring to the parent comment, and is a root comment if there is no parent)
  • created_at (the time and date of comment creation)

Once the model is made, we can create the migrations and migrate the database using the commands `python makemigrations` and `python migrate`. Now that the model is created and the database is migrated, we need to create views for addition and deletion of comments. We can also create a view for editing comments but that is not what we will discuss in this article. So the add view should be a POST view which takes an `user_id`, `article_id`, `content` and `parent`. Once we validate these data, we can create a new `Comment` using

Comment.objects.create(user=User.objects.get(id=user_id), article=Article.objects.get(id=article_id), content=content, parent=parent)

Make sure that `parent` is `None` if there is no parent comment.

Okay we are almost done. We just need to work on the template now.

So we will render the template with the context variables `root_comments` which will have all the root comments of the article. Now we will create another template called `comments.html` which will be passed some variables called `comments`, `user`, etc from the driver template. It will look something like this

{% include "aldryn_newsblog/includes/comments.html" with comments=root_comments article=article user=user csrf_token=csrf_token only %}

This `comments.html` will run a for loop to display all the comments and with each iteration it will also call the same template recursively like this

{% include "aldryn_newsblog/includes/comments.html" with comments=comment.replies.all parent=comment article=article user=user csrf_token=csrf_token only %}

We need to use the keyword only so that only these variables are passed and not the parent template variables which will override the correct ones. So, we will also need to pass some variables like `user`, `crsf_token`, etc. Also, we need to create a form which will POST to the add comment view with every template to reply to the parent comment in that template.

We can also implement a bunch of other features like hiding the reply threads, adding recaptcha verification, etc. The code can be found on this repo. Feel free to use it or take help from the same.

That's it for today. Hope it helps.

<a href=""></a>
Feb. 18, 2020, 2:25 p.m. Reply
April 4, 2020, 1:24 p.m. Reply
April 4, 2020, 1:24 p.m. Reply
<b><a href=>commercial property renovation</a></b>

Repair work residential premises turnkey - much better Solving problems through wizards.In order place an order for repair work dwellings in Diamond District, leave a request on site or by phone. To create hospitality interior decoration expertly as well as properly, it is vital to utilize effective and also extremely audio products that comply with all standards and technological criteria. However the primary distinction is not also in the components, but in how and just how correctly they are actually made use of. And also this is actually the work of the experts. Expert capabilities areactually an extremely essential situation. . Likewise in our firm, you can purchase personalized bathroom vanities, retail interior design on the most effective problems. With us, interior basements, in addition to Premium renovation Bay Terrace, will end up being straightfor
April 20, 2020, 3:28 a.m. Reply
<b><a href=>Фундамент заказать</a></b>

Создание дома вашей мечты - это оригинальная возможность, спланировать и претворить в жизнь нечто воистину уникальное во всех отношениях. Возведение фундамента - это в целом первоначальная модель ремонта, в процессе которой домик строится. При расчете замена фундамента под старым деревянным домом цена предусматривается весьма много факторов. Средняясумма возведения домов фундамента составляет приблизительно от 10$ за кв.метр . Погреб сможет умножить итоговую стоимость каждого объекта недвижимости, предоставляя необходимое помещение ради организации хранения и порой рабочее пространство. Наша профессиональная команда по конструированию и возведенью фундамент под памятник на кладбище цена может помочь выстроить жилище, о котором вы всегда мечтали. От начала до конца наша специализированная компания в Череповец позаботимся о всех без исключения процессах, чтобы заказчику не довелось тревожиться о деталях. Специализ
April 20, 2020, 8:32 a.m. Reply
спасибо интересное чтиво
играть в онлайн казино с бонусом без депозита <a href="">promo code pin up stars</a>, казино с моментальной выплатой денег.
Oct. 14, 2020, 6:29 p.m. Reply
Круто, давно искал
<a href="">Казино онлайн без регистрации бесплатно</a>
Oct. 28, 2020, 9:21 a.m. Reply
1000 characters left
1000 characters left
1000 characters left
1000 characters left
1000 characters left
1000 characters left
1000 characters left
1000 characters left