Laravel's Dependency Injection

A small lightning talk for non-laravel users on why I like the dependency injection options that Laravel gives you.

Transcript

1. Laravel Intro
2. Master in Science, web developer Hannes Van De Vreken ABOUT
3. Dependency Injection
4. GREAT STUFF • IoC container • ServiceProviders • Facades
5. IOC CONTAINER • Illuminate\Container\Container • Application container • Can create instances by class name
6. IOC CONTAINER
7. IOC CONTAINER • Illuminate\Container\Container • Application container • Can create instances by class name • Recursively
8. IOC CONTAINER
9. No configuration?
10. IOC CONTAINER
11. IOC CONTAINER • Illuminate\Container\Container • Application container • Can create instances by class name • Recursively • Interfaces
12. IOC CONTAINER
13. But… interfaces don’t have constructors?
14. IOC CONTAINER
15. SERVICE PROVIDER • Register • Boot
16. SERVICE PROVIDER
17. SERVICE PROVIDER
18. SERVICE PROVIDER - REGISTER • Bind closures • Define Interface aliases • Don’t use other stuff outside closures
19. SERVICE PROVIDER - BOOT • Register routes • Before/After • Global error handlers
20. FACADES • Allow static-like method calling • Resolve to instance on container
21. FACADES
22. FACADES
23. FACADES
24. FACADES - USAGE
25. FACADES • Inject dependencies • Real mockery mocks • More code if you don’t use facades
26. FACADES - MOCKING
27. Questions?
28. @hannesvdvreken Thank you.
29. • https:/ /github.com/laravel/laravel • http:/ /laravel.com/docs/ioc • https:/ /github.com/illuminate/container • http:/ /wikipedia.org/wiki/Dependency_injection • http:/ /laravel.com/docs/ioc#service-providers • http:/ /laravel.com/docs/packages#service-providers • http:/ /laravel.com/docs/facades • http:/ /laravel.com/docs/facades#mocking-facades REFERENCES