drupal-at-your-fingertips

Drupal hooks and services are extension points that let you modify core behavior and inject reusable functionality. This skill covers defining custom hooks, creating services, and injecting them into controllers and other classes to extend Drupal's core features without modifying core files.

AJAX-enabled forms in Drupal use Form API callbacks to validate and update fields without page reloads. This skill provides patterns for defining AJAX triggers, handling callbacks, and rendering form elements dynamically while maintaining data integrity.

Yes. Drupal's Entity API lets you define custom entities with fields, bundles, and storage handlers. This skill explains entity structure, field attachment, and how to integrate entities with forms and the content management workflow.

Drupal debugging relies on logging, Drush commands, and Drupal Test Traits for automated testing. This skill covers logging best practices, test structure, and common debugging workflows to identify and fix issues quickly.

Hooks are procedural callbacks, events use an event dispatcher pattern, and plugins are registered service objects. This skill clarifies when to use each extension mechanism, how they interact with core APIs, and best practices for each approach.

Theming in Drupal uses template files and render arrays; caching controls performance through tags and contexts. This skill covers theme inheritance, template preprocessing, cache invalidation, and performance optimization for complex pages.