Mastering Drupal Custom Modules: A Step-by-Step Development Guide

Kyon, a seasoned developer, recently shared insights into creating custom modules for Drupal in a blog post. This guide is tailored for developers using Drupal 10.3.6, PHP 8.3.10, and MySQL 5.7.44, focusing on extending the CMS functionality through custom modules.

Custom modules, one of three module types in Drupal, allow developers to add personalized features. Kyon’s example involves creating a module named "test" to export data from a specific view, “XX Management List,” to a CSV file when a button is pressed.

Key steps include setting up the directory structure under 'web/modules/custom,' defining a configuration file (test.info.yml) for module metadata, and creating routing (test.routing.yml) to handle URL paths and permissions. The module also includes a custom PHP controller (TestController.php) to manage its functionality.

The final step involves enabling the module via the Drupal admin panel, ensuring seamless integration. Kyon emphasizes caution during uninstallation to avoid mismatches in Drupal’s management system. For more, explore Kyon’s detailed guide.