Introduction to Symfony Components and helper components in Drupal 8
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The document provides an introduction to Symfony components and helper components in Drupal 8, detailing key programming concepts such as functional vs OOP, HTTP request-response lifecycle, and routing via YAML. It showcases sample code for a 'Hello World' controller and how dependency injection is implemented using a mailer class. Additionally, it includes references to various resources and documentation related to Symfony and Drupal 8.
Introduction to Symfony Components and helper components in Drupal 8
- 1. Introduction to Symfony components and helper components in Drupal 8 Ankit Babbar Drupal Developer at Valuebound Volunteer at SPIC MACAY twitter: ankitbabbar
- 3. History of PHP Functional vs OOPs Programming Frameworks 3rd Party Libraries Namespace PHP-FIG YAML Composer
- 4. Awesome Drupal CMS + Symfony2 Framework + Best PHP Practices from Community
- 10. HTTP request looks like: GET /foo.html HTTP/1.1 Host: example.com Accept: text/html User-Agent: Mozialla/5.0 (Macintosh) GET Retrieve the resource from the server POST Create a resource on the server PUT Update the resource on the server DELETE Delete the resource from the server Request
- 15. HTTP response looks like: HTTP/1.1 200 OK Date: Sat, 25 Jul 2015 10:30:00 IST Server: apache2/2.xx Content-Type: text/html <html> Response
- 16. Routing
- 17. YAML: YAML Ain’t Markup Language Sample Router hello_world.content: path: ‘/hello-world' defaults: _controller: 'DrupalhelloControllerHelloController::content' _title: 'Hello World' requirements: _permission: 'access content'
- 18. Controllers
- 19. Sample Hello World Controller class HelloController extends ControllerBase { public function content() { return array( '#type' => 'markup', '#markup' => t('Hello, World!'), ); } }
- 20. Application Flow
- 21. Event Dispatcher
- 23. HTTP Kernel
- 36. class Notifier { private $mailer; public function __construct() { $this->mailer = new Mailer(); } public function notify() { … $this->mailer->send($from, $to, $msg); … } }
- 37. class Notifier { private $mailer; public function __construct(MailInterface $m) { $this->mailer = $m; } public function notify() { …. $this->mailer->send($from, $to, $msg); … } } $mailer = new SpecialMailer(); $notifier = new Notifier($mailer);
- 38. Composer Sample composer.json for hello_world module { "name": “drupal/hello_world", "require": { "mailchimp/mailchimp": "2.0.6" } }
- 40. Full Controller File Look like: <?php /** * @file * Contains DrupalhelloControllerHelloController. */ namespace DrupalhelloController; use DrupalCoreControllerControllerBase; class HelloController extends ControllerBase { public function content() { return array( '#type' => 'markup', '#markup' => t('Hello, World!'), ); } } ?>
- 42. Validator
- 44. 1. Symfony Documentation 2. DrupalCon Denver 2012: DRUPAL 8 MEETS SYMFONY2 https://www.youtube.com/watch?v=Gr71z_WoejM 3. UNDERSTANDING DRUPAL 8: https://cipix.nl/understanding-drupal-8-part-1-general- structure-framework 4. DrupalCon Portland 2013: DEPENDENCY INJECTION IN DRUPAL 8 https://www.youtube.com/watch?v=kocJ6pn9kEc 5. DrupalCon Denver 2012: DRUPAL 8 MEETS SYMFONY2 https://www.youtube.com/watch?v=Gr71z_WoejM 6. Symfony en Drupal 8 http://symfony.com/doc/current/components/event_dispatcher/introduction.html#introduction 7. Unravelling the Drupal 8 Plugin System https://drupalize.me/blog/201409/unravelling-drupal- 8-plugin-system 8. Drupal 8 Plugin System https://www.youtube.com/watch?v=2o5uY-iOoMo 9. PSR-4 http://www.php-fig.org/psr/psr-4/ 10. Namespaces http://php.net/manual/en/language.namespaces.php References and Resources
- 45. Thank You!
- 46. Questions?