Drupal 8 Plugin System

Drupal 8 introduces a new, yet familiar sub-system for extending and managing Drupal's default behavior: it's The Plugin System. If you've ever developed for Views or CTools than these concepts will probably already be familiar to you. The plugin architecture provides you with a common interface that allows you to easily extend and swap out functionality without having to re-implement boiler-plate code, all while keep all your logic in one place instead of scattered around info hooks and procedural callbacks.

Video: http://youtu.be/2o5uY-iOoMo
Source Code: https://github.com/helior/pilot

Transcript

1. Drupal 8: Plugin System
2. @helior Helior Colorado
3. Do you even lift, bro? Disclaimer: Made for Nerds
4. Overview 1. Explain plugins 2. Why this matters 3. Critical Drupal 8 concepts 4. DEMO writing plugins 5. Internals of Plugin System 6. Create your own plugin-type
5. What is a Plugin? A discreet class that executes an operation within the context of a given scope, as a means to extend Drupal’s functionality. Limited in scope Does one thing Configurable, reusable
6. Plugins in action!
7. Blocks
8. Field Types
9. Field Widget
10. Field Formatters
11. Actions
12. Image Effects
13. Input Filter
14. CKEditor Buttons
15. Entity Types
16. Plugins everywhere
17. hook_whatever_info()
18. Benefits of ❤ Plugins ❤
19. Definition + Implementation in one place
20. Plugins are lazy-loaded
21. Code is unified
22. Plugins are extensible
23. Plugins are consistent
24. Interchangeable within plugin types
25. Reusable across different projects
26. Core Concepts used in Drupal 8 Dependency Injection Service Containers Annotations PSR-0
27. PSR-0: Autoloading Standard 1. Fully-qualified namespace should be in the format of 
 Vendor/Namespace/Classname 2. Directory structure must match namespace for plugin http://www.php-fig.org/psr/psr-0
28. Annotations http://www.slideshare.net/rdohms/annotations-in-php-they-exist Metadata inside of docblocks. Regular comment: Docblock:
29. Dependency Injection Inversion of control. http://fabien.potencier.org/article/11/what-is-dependency-injection
30. Service Containers Auto-instantiate service-oriented classes with all its registered dependencies. https://jtreminio.com/2012/10/an-introduction-to-pimple-and-service-containers
31. Review 1. Explained plugins 2. Why that matters 3. Core concepts used in Drupal 8 Time for demos
32. Plugin System Internals Plugin Manager Discovery Factory Mapper
33. Discovery
34. Factory
35. Mapper
36. Plugin Manager
37. Discovery Classes
38. AnnotatedClassDiscovery YamlDiscovery StaticDiscovery HookDiscovery
39. Decorator Classes
40. DerivativeDiscoveryDecorator AlterDecorator CacheDecorator ProcessDecorator
41. Discovery Classes Factory Classes
42. DefaultFactory WidgetFactory ReflectionFactory ContainerFactory
43. Mapper Classes
45. Demo creating a Person Plugin Manager
46. Final Thoughts
47. @helior Thanks!