The document discusses software design patterns particularly in the context of Laravel 4, detailing various patterns such as builder, observer, and singleton. It also includes information on notations, interfaces, and abstract classes involved in Laravel, alongside examples of their application within the framework. The author, Phil Sparks, is an experienced API engineer and a member of the Laravel core team.

1. Software Design Patterns
in Laravel 4
by Phill Sparks

2. Credits
• Rosalind Goodall - Graphics
• Taylor Otwell - Laravel

3. @PhillSparks

4. @PhillSparks
•API Engineer at CrowdLab

5. @PhillSparks
•API Engineer at CrowdLab
•From Leicester, UK

6. @PhillSparks
•API Engineer at CrowdLab
•From Leicester, UK
•Climbing Instructor

7. @PhillSparks
•API Engineer at CrowdLab
•From Leicester, UK
•Climbing Instructor
•Scout

8. @PhillSparks
•API Engineer at CrowdLab
•From Leicester, UK
•Climbing Instructor
•Scout
•Laravel Core Team

9. Laravel
• With Laravel since 1.5.9
• Core Team Member
• Past: Quality Team
• Now: Community engagement and support

10. Laravel
• With Laravel since 1.5.9
• Core Team Member
• Past: Quality Team
• Now: Community engagement and support
• Dayle still owes me 9000 support points!

11. Software Design Patterns
Each pattern describes a problem which occurs over
and over again in our environment, and then describes
the core of the solution to that problem, in such a
way that you can use this solution a million times
over, without ever doing it the same way twice.
-- Christopher Alexander, AIS+77
“ ”

12. Software Design Patterns

13. Software Design Patterns

14. The Patterns
• Builder
• Chain of Responsibility
• Command
• Facade
• Factory
• Iterator
• Mediator
• Observer
• Presenter
• Repository
• Singleton
• Strategy

15. Notations

16. Class
Notations

17. Sub-class
Notations

18. Abstract Class
Notations

19. Class Instance
Notations

20. Implementation
Notations

21. Building Blocks

22. Interfaces
namespace IlluminateAuth;
interface UserInterface {
public function getAuthIdentifier();
public function getAuthPassword();
}
class GenericUser implements UserInterface {

23. • 244 interfaces in Laravel (including vendors)
• 25 from Laravel Core
• 65 from Symfony
• 73 from Swiftmailer
Interface

24. Abstract Classes
namespace IlluminateDatabaseEloquentRelations;
abstract class Relation {
abstract public function addConstraints();
abstract public function getResults();
}
class BelongsTo extends Relation {

25. Abstract Classes
• 128 abstract classes in Laravel (including
vendors)
• 14 from Laravel Core
• 15 from Swiftmailer
• 40 from Symfony

26. Iterator

27. PHP’s Iterator Interface

28. Laravel’s Iterators
• Collection
• Paginator

29. Observer

30. Dispatcher
namespace IlluminateEvents;

31. Dispatcher
namespace IlluminateEvents;
class LoginHandler {
function handle($user) {
// do something with $data
}
}
Event::listen(‘user.login’, ‘LoginHandler’);
Event::fire(‘user.login’, $user);

32. Singleton

33. AliasLoader
namespace IlluminateFoundation;

34. Multiton

35. DatabaseManager
namespace IlluminateDatabase;

36. Facade

37. Facade
namespace IlluminateSupportFacades;

38. Input
namespace IlluminateSupportFacades;

39. Route
namespace IlluminateSupportFacades;

40. Response
namespace IlluminateSupportFacades;

41. Str
namespace IlluminateSupport;

42. Facade vs Singleton

43. Decorator

44. BootstrapPresenter
namespace IlluminatePagination;

45. BootstrapPresenter
namespace IlluminatePagination;

46. Repository
• Examples:
• IlluminateCacheRepository
• IlluminateConfigRepository

47. Builder (aka Manager)
• Examples:
• IlluminateAuthAuthManager
• IlluminateCacheCacheManager
• IlluminateQueueQueueManager
• IlluminateSessionSessionManager

48. Factory
• Examples:
• IlluminateDatabaseDatabaseManager
• IlluminateDatabaseConnectors
ConnectionFactory
• IlluminateValidationFactory

49. Service Provider
• Core to Laravel’s IoC
• See IlluminateSupportServiceProvider
• Examples:
• IlluminateAuthAuthServiceProvider
• IlluminateHashHashServiceProvider
• IlluminateLogLogServiceProvider

50. Strategy
• Examples:
• IlluminateCacheStoreInterface
• IlluminateConfigLoaderInterface
• IlluminateDatabase - Builders & Grammars
• IlluminateTranslationLoaderInterface
• IlluminateViewViewFinderInterface

51. s/PhillSparks//