Sources & Maintenance
Drupal Research Install
Claims here were checked against a local Drupal install of core and the modules named below, rather than quoted from documentation.
Web Sources
| Source | URL | Guide Sections | Last Verified |
|---|---|---|---|
| Drupal API Best Practices | https://api.drupal.org/api/drupal/core!core.api.php/group/best_practices/11.x | 1.1, 8.1, 8.2 | 2026-02-14 |
| Services and Dependency Injection | https://www.drupal.org/docs/drupal-apis/services-and-dependency-injection/services-and-dependency-injection-in-drupal | 2.1, 6.1 | 2026-02-14 |
| Drupal Plugin API | https://www.drupal.org/docs/drupal-apis/plugin-api | 3.1 | 2026-02-14 |
| Drupal Hook API | https://api.drupal.org/api/drupal/core!core.api.php/group/hooks/11.x | 3.2 | 2026-02-14 |
| Drupal 11.1 Hooks as Classes | https://drupalize.me/blog/drupal-111-adds-hooks-classes-history-how-and-tutorials-weve-updated | 2.3 | 2026-02-14 |
| Drupal 11 OOP Hooks Architecture | https://www.hashbangcode.com/article/drupal-11-object-oriented-hooks-and-hook-service-classes | 2.3 | 2026-02-14 |
| Altering Existing Services | https://www.drupal.org/docs/drupal-apis/services-and-dependency-injection/altering-existing-services-providing-dynamic-services | 3.3, 6.2 | 2026-02-14 |
| Drupal Service Container Deep Dive | https://www.thedroptimes.com/65134/drupal-service-container-deep-dive-part-2-aliases-autowiring-and-named-arguments | 6.1, 6.2 | 2026-02-14 |
| AutowireTrait for DI | https://www.drupal.org/node/3396179 | 5.2, 6.2 | 2026-02-14 |
| Autowiring in Drupal | https://www.oliverdavies.uk/daily/2025/07/11/easier-dependency-injection-autowiring | 6.2 | 2026-02-14 |
| Service Decorators | https://www.axelerant.com/blog/drupal-8-service-decorators | 6.2 | 2026-02-14 |
| What Are Plugins | https://drupalize.me/tutorial/what-are-plugins | 3.1 | 2026-02-14 |
| Drupal Module Development | https://www.zend.com/blog/drupal-module-development | 7.1 | 2026-02-14 |
| Mastering OOP and SOLID in Drupal | https://drupal.com.ua/152/mastering-oop-and-solid-principles-php-drupal-examples-complete-guide | 1.1 | 2026-02-14 |
Code Sources
| Module | Relative Path | Guide Sections | Drupal Version |
|---|---|---|---|
| Core | core/lib/Drupal/Core/ | All sections | 11.x |
| Core Access | core/lib/Drupal/Core/Access/ | 4.3, 9.1 | 11.x |
| Core Entity | core/lib/Drupal/Core/Entity/ | 4.1, 5.1, 9.1 | 11.x |
| Core Form | core/lib/Drupal/Core/Form/ | 2.2, 4.2, 9.1 | 11.x |
| Core Plugin | core/lib/Drupal/Core/Plugin/ | 3.1, 9.1 | 11.x |
| Core DependencyInjection | core/lib/Drupal/Core/DependencyInjection/ | 5.2, 6.1, 6.2, 9.1 | 11.x |
| Core services definitions | core/core.services.yml | 6.1, 9.1 | 11.x |
| Node module | core/modules/node/ | 2.1, 2.3, 3.2, 4.1, 9.1 | 11.x |
| Node services | core/modules/node/node.services.yml | 6.1, 9.1 | 11.x |