Python Decorators & more Likes - Building a web app with Django - Part 14

Step-by-Step Tutorial: Building a Web App with Django - Part 14

1. Update Models for Like Logic:

• Open the models.py file in the posts folder.
• Add a new property likes to the Comment class as a many-to-many field.
• Implement the likes on the Post class as well.
• Add a through table named LikeComment for the Comment likes.

2. Make Migrations and Apply Changes:

• Save the file.
• Run migrations:

  python manage.py makemigrations
  python manage.py migrate
  

• Start the server:

  python manage.py runserver
  

3. Register Models in Admin Panel:

• Update the admin.py file to register the LikedComment model.

4. Update Comment Template:

• Navigate to templates/posts/comments.html.
• Use {% include %} to include the likes snippet.
• Create a new file likes_comment.html in the Snippets folder and paste the code.

5. Update URL Patterns:

• Update the URL pattern for liking a comment.
• Modify the URL structure to include the primary key at the end for reference.

6. Implement Custom Decorator for Like Toggle Functionality:

• Create a custom decorator named like_toggle that handles adding and removing likes.
• Implement the decorator with nested functions for better code organization.

7. Add Like Comment Function:

• Implement the like_comment function using the custom decorator.
• Update the template to use the likes_comment.html snippet.

8. Implement Like Reply Functionality:

• Add a likes property to the Comment class for likes on replies.
• Create a through table named LikeReply for the Comment replies.

9. Register Like Reply in Admin Panel:

• Register the LikeReply model in the admin.py file.

10. Update Reply Template:

• Copy the code from the likes snippet and create a new file likes_reply.html.
• Update the URLs and include the snippet in the reply.html template.

11. Test the Functionality:

• Add a new reply in the backend.
• Refresh the page to see the new reply.
• Test liking a reply and a comment.

By following these steps, you can implement like functionality for comments and replies in your Django web application.