The Drupal 8 plugin system: extensibility for all (DrupalCamp Baltics 2015)
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The document explains the Drupal 8 plugin system, which allows for extensibility through swappable extensions that execute specific tasks. It details plugin classification, discovery methods, and the structure of plugins, emphasizing a consistent API for instantiation. Additionally, it outlines how to create and manage plugins, including dynamic derivative definitions and configuration schemas.
The Drupal 8 plugin system: extensibility for all (DrupalCamp Baltics 2015)
- 1. THE DRUPAL 8 PLUGIN SYSTEM: EXTENSIBILITY FOR ALL I am , , and .Xano @BartFeenstra http://mynameisbart.com
- 2. WHAT ARE PLUGINS? Swappable extensions that provide logic for a specific (set of) task(s) Uniquely identifiable Metadata Multiple instances can co-exist (reuse)
- 3. DRUPAL 7 PLUGINS Hook discovery (core and most contributed modules) File-based discovery (ctools) Magic hooks/callbacks/includes Some plugins are classed
- 4. SAY WHAT?
- 5. DRUPAL 8 PLUGINS Are classed. Always. Should implement interfaces. Consistent API for discovering and instantiating plugins, regardless of type.
- 6. NO MORE DARK MAGIC
- 7. JARGON, DO YOU SPEAK IT?
- 8. PLUGIN TYPE
- 10. PLUGIN DISCOVERY
- 11. PLUGIN FACTORY
- 12. PLUGIN MANAGER (DISCOVERY + FACTORY + ...)
- 13. PLUGIN INSTANCE
- 15. RECREATING/CLONING PLUGIN INSTANCES Using Plugin type/manager, ID, and configuration through ConfigurablePluginInterface.
- 16. DISCOVERY METHODS Annotated class discovery (mostly different logic) YAML discovery (mostly reused logic) Static discovery (testing) Hook discovery (deprecated)
- 17. ANNOTATED CLASS DISCOVERY <?php /** * The plugin that handles Data response callbacks for REST resources. * * @ingroup views_display_plugins * * @ViewsDisplay( * id = "rest_export", * title = @Translation("REST export"), * help = @Translation("Create a REST export resource."), * uses_route = TRUE, * admin = @Translation("REST export"), * returns_response = TRUE * ) */ class RestExport extends PathPluginBase implements ResponseDisplayPluginInterface { // Class contents here... } ?>
- 18. YAML DISCOVERY system.admin: title: Administration route_name: system.admin weight: 9 menu_name: admin system.admin_content: title: Content description: 'Find and manage content.' route_name: system.admin_content parent: system.admin weight: -10 system.admin_structure: route_name: system.admin_structure parent: system.admin description: 'Administer blocks, content types, menus, etc.' title: Structure weight: -8
- 19. FORMS
- 20. DERIVATIVES One base plugin definition can be dynamically expanded into multiple derivative plugin definitions.
- 21. THERE'S A MODULE FOR THAT http://drupal.org/project/plugin
- 25. TYPED PLUGIN DEFINITION API Now: PluginDefinitionMapperInterface Future: PluginDefinitionInterface
- 26. PLUGIN SELECTORS
- 28. CONCLUSION EXTENDING DRUPAL HAS NEVER BEEN EASIER. Review this presentation at .http://slideshare.net/bartfeenstra Find the Plugin module at .http://drupal.org/project/plugin I am , , and .Xano @BartFeenstra http://mynameisbart.com DO YOU HAVE ANY QUESTIONS? © subsetsum @ Flickr (CC BY-NC-ND 2.0)