Plugin Structure

@see: https://engineering.hmn.md/standards/structure/#plugin-structure

Description

This plugin adds a custom post type for books.

Installation

1. Clone the repository into your wp-content/plugins directory
2. Activate the plugin via the WordPress admin interface
3. Use the Books custom post type to add books to your site
4. View the books at /books/
5. View a single book at /books/{slug}/
6. Click on the subscribe button to subscribe to the book
7. View the subscribers at /wp-admin/admin.php?page=subscribers-list

Further Development

1. Fork the repository
2. Create a new branch for your feature or changes
3. Create a new issue in the repository for the feature or changes
4. Create a pull request for your changes

Improvements

The following improvements can make your plugin development more efficient and maintainable.

1. Use classes for the plugin files.
2. Autoload classes using spl_autoload_register or PSR-4 autoloading.
3. Use WP PHPCS for coding standards.
4. Send an email to the site admin when a new subscriber is added.
5. Add a column to the books list table to show the number of subscribers.