It will give a quick introduction to Drupal 8 beginners.

1. D8 - Quick bites
Braham Pal Singh
Date: 01 Feb 2017

2. AGENDA
•
Core Initiatives
• SEMantic VERsioning
• Major Components
• Major Features
• Folder Structure
• Symfony Components
• Vendor Libraries In Core
System requirement
•

3. System
requirements

4. System requirements

5. CORE-
INITIATIVES

6. HTML5

7. LAYOUTS

8. MOBILE FIRST

9. MULTILINGUAL

10. VIEWS IN CORE

11. WEB SERVICES

12. SEMANTIC VERSIONING

13. 7.53 => 8.2.3

14. THE NUMBERS
SEMANTIC VERSIONING

15. MAJOR COMPONENTS
IN CORE

16. CONFIGURATION MANAGEMENT
Drush config-export
Drush config-import

17. TWIG TEMPLATES - BENEFITS
MAJOR COMPONENTS IN CORE
• Powerful, supporting macros, i18n, extensions, template
inheritance.
• Secure
• It will bring Symphony and Drupal communities closer, since we
are sharing more and more components
• Filters support
https://github.com/makinacorpus/php-twig-converter

18. WITH CO M POSER
DEPENDENCY MGMT. USING COMPOSER
• PSR-4 autoloader.
• Add composer.json to your custom module X.
• run composer update from webroot.
• Use the PHP library anywhere in the the custom module X or any
other custom Module.

19. FEATURES

20. EDITORIAL EXPERIENCE
WYSIWYG IN CORE

21. EDITORIAL EXPERIENCE
IN PLACE EDITING IN CORE

22. BREAKPOINTS IN CORE
DECLARING BREAKPOINTS AS A PART OF THEME NOT CSS

23. RESPONSIVE IMAGES
RESPONSIVE IMAGES - FALLBACKS FOR IMAGE STYLES

24. PHP UNIT FOR UNIT TESTING
FEATURES
• Actively Maintained.
• Most of the frameworks have shifted down to PHPUNIT e.g.,
symfony, Zend, Cake PHP etc.
• Quicker to test
• Better code coverage compared to simple test.
• Less dependencies & more extensions.
• Integrated with most of the IDEs.

25. IMPROVED CACHING
FEATURES
• Content being rendered are not cache-aware.
• Cache-invalidation is automated for a lot of regions.
• Swappable cache backends
• Introduction of cache contexts for cache variations.
• … and lot more…

26. Drupalconsole

27. DRUPAL 8 FOLDER
STRUCTURE

28. Folder structure

29. SYMFONY
COMPONENTS IN CORE

30. SYMFONY
COM PONENTS
IMPACTING
REQUEST-RESPONSE

31. HTTPFOUNDATION AND HTTPKERNEL
SYMFONY COMPONENTS
• Moving away from concept of hooks & towards Event driven
development.
• Standard Request & Response objects & interacting with them
made super easy
• Drupal built on top of a first-class REST server
• Drupal as a producer now instead of just being a consumer.
• Helped with Web Services and Context Core Initiative
(WSCCI).

32. ROUTIN G
SYMFONY COMPONENTS
• Maps HTTP Request with a set of config variables.
• Routes/paths defined in YAML format as a part of the module
• Action for the routes controlled via module’s classes in D8.

33. EVENT DISPATCHER
SYMFONY COMPONENTS
• Implements Observer pattern
• Starting point for replacement of hook system.
• Powers up the plugin system in D8 as well.

34. CLASSLOADER
SYMFONY COMPONENTS
• Loads project classes when needed rather than loading everything
in the memory always.
• Requires classes to use PSR-4 standard for directory structure.
• namespace DrupalCoreController
• Manual inclusion of classes no longer needed.

35. TWIG
SYMFONY COMPONENTS
• Developed by Fabien, creator of symfony
• Replaces phptemplate engine
• Plays well with other symfony components

36. TWIG
SYMFONY COMPONENTS
• Developed by Fabien, creator of symfony
• Replaces phptemplate engine
• Plays well with other symfony components

37. YAM L
SYMFONY COMPONENTS
• Serves as an integral part for the CMI
• Defining default configuration, exporting configurations from a
site - all YAML
• Good alternative to features module in D7

38. NON-
SYMFONY
COMPONENTS

39. COM PO SER
NON-SYMFONY COMPONENTS

40. DOCTRINE
NON-SYMFONY COMPONENTS
• Drupal 8 uses a part of it called Annotations that exposes
additional metadata to Drupal.

41. GUZZLE
NON-SYMFONY COMPONENTS
• replaces drupal_http_request()
• Can send both synchronous & asynchronous requests
• Multiple-request processing in parallel.
• Allows for streaming response.

42. EASYRDF
NON-SYMFONY COMPONENTS
• Consuming & producing RDF
• Easier debugging using dump methods provided by the library

43. References
• ** https://www.drupal.org/list-changes/drupal
• https://www.sitepoint.com/symfony-drupal-8/
https://www.drupal.com/why-drupal-8
https://dev.acquia.com/blog/drupal-8/10-new-features-in-drupal-8-
core/18/05/2016/6721
•
•

44. Questions?