ZF2 For User Groups (Draft)

Transcript

1. ZF2 For User Groups by Ralph Schindler Tuesday, January 15, 13
2. Who Am I? •Ralph Schindler (ralphschindler) Software Engineer on the Zend Framework team •At Zend for 5 years •Before that TippingPoint/3Com Programming PHP for 13+ years Live in New Orleans, LA. •Lived in Austin, Tx for 5 years 2 Tuesday, January 15, 13
3. Outline of Talk •ZF2 Intro •ZF2 Application Quickstart •MVC Application Core Concepts •Modules / Exploring / Development 3 Tuesday, January 15, 13
4. ZF 2.0 •Next generation of Zend Framework •Embrace 5.3 (and 5.4 in some places) •Embrace multiple programming paradigms AOP Event driven programming •More SOLID http://en.wikipedia.org/wiki/SOLID_(object-oriented_design) More interfaces, more possibility for extension Practice dependency injection •More Agile and open! No more CLA Code on github.com 4 Tuesday, January 15, 13
5. Insert->Header & Footer ZF2 Application Quickstart 5 Tuesday, January 15, 13
6. Quickstart •Get ZF2 Application Skeleton: download the zip [or] use composer’s create-skeleton 6 Tuesday, January 15, 13
7. Composer Skeleton •Download composer •Run command to create skeleton •Setup Apache [or] PHP 5.4 built-in web server •Start coding 7 Tuesday, January 15, 13
8. Insert->Header & Footer Tutorial / Demo 8 Tuesday, January 15, 13
9. Insert->Header & Footer Core Concepts 9 Tuesday, January 15, 13
10. Why Core Concepts •“How does my action controller get dispatched?” •“How do I create re-usable compoents/modules for my team/public consumption?” •“I’m just generally curious about the architecture.” 10 Tuesday, January 15, 13
11. 3 Central Components •Zend\Mvc composes: Zend\EventManager to build a workflow based on an event model Zend\ServiceManager for members in this workflow to consume and provide instances of objects Zend\ModuleManager to encapsulate members together 11 Tuesday, January 15, 13
12. Insert->Header & Footer Zend\EventManager 12 Tuesday, January 15, 13
13. Events •Some objects trigger an events •Some objects listen for events 13 Tuesday, January 15, 13
14. Terminology •An Event is both an action and a value object. •A Listener is a callback that accepts an Event and acts on it. •An Event Manager is an object that aggregates listeners for named events, and which triggers events. 14 Tuesday, January 15, 13
15. Example: Listener 15 Tuesday, January 15, 13
16. Example: Triggering 16 Tuesday, January 15, 13
17. Example: Implication 17 Tuesday, January 15, 13
18. Other Features •Shared listeners attach listeners even when you don't have the target instance •Priority specify the order in which listeners are triggered 18 Tuesday, January 15, 13
19. •Stop propagation from inside a listener, or based on the result of a listener •Aggregate and introspect listener results 19 Tuesday, January 15, 13
20. Insert->Header & Footer Zend\ServiceManager 20 Tuesday, January 15, 13
21. Services •Objects you work with (including Controllers!) •Substitutable, replaceable •Define how you want them built •Inversion of Control 21 Tuesday, January 15, 13
22. Types •Instances (services) •Constructor-less classes (invokables) •Factories when objects have dependencies (factories) •Factories for multiple related objects (abstract_factories) •Aliased services (aliases) •Automated initialization (initializers) 22 Tuesday, January 15, 13
23. Examples notes •Can be done programmatically •Or in Zend\Mvc Application: via configuration •(both shown) 23 Tuesday, January 15, 13
24. Instances 24 Tuesday, January 15, 13
25. Invokables 25 Tuesday, January 15, 13
26. Factories 26 Tuesday, January 15, 13
27. Abstract Factories 27 Tuesday, January 15, 13
28. Aliases 28 Tuesday, January 15, 13
29. Initializers 29 Tuesday, January 15, 13
30. ZF2 MVC Implications / Other Features •All plugin managers are service managers! You can now inject dependencies into helpers, plugins, etc! •Services are shared by default; you can disable this selectively •Manager "peering" is available 30 Tuesday, January 15, 13
31. Services Are Configurable •Application configuration •Module classes (we'll get to that...) •Module configuration •"Global" and "Local" override configuration 31 Tuesday, January 15, 13
32. Insert->Header & Footer Modules & Zend\ModuleManager 32 Tuesday, January 15, 13
33. What is a Module? •A named encapsulation of “stuff” •Provide the MVC with: Autoloading Configuration Services (including controllers, plugins, etc.) Event listeners / event wiring •Are reusable 33 Tuesday, January 15, 13
34. “stuff” •At least a namespaced “Module.php” •... anything: file assets classes mvc members 34 Tuesday, January 15, 13
35. Zend\ModuleManager •Loops through modules •Consumes the EventManager to: Triggers an event for each module allowing listeners to act on Module classes 35 Tuesday, January 15, 13
36. ModuleManager Events •loadModules: the loop in which modules are loaded •loadModule: triggered once we have a Module class instance •loadModules.post: to allow listeners to act on aggregated information from all Modules 36 Tuesday, January 15, 13
37. ModuleManager Built-in Listeners •AutoloaderListener •ConfigListener: aggregate config from all modules •ServiceListener: aggregate `ServiceManager` (and plugin manager) !configurations from Module classes and/or module configuration •OnBootstrapListener: register a Module as a "bootstrap" event listener !more ... including any you want to write 37 Tuesday, January 15, 13
38. Simple Example 38 Tuesday, January 15, 13
39. Insert->Header & Footer Zend\Mvc 39 Tuesday, January 15, 13
40. Zend\Mvc •Composes EventManager so that Everything is an Event 40 Tuesday, January 15, 13
41. Everything Is An Event 41 Tuesday, January 15, 13
42. The MVC Events •bootstrap •route •dispatch and dispatch.error •render (and, in 2.1, render.error) •finish •(These are actual event names) 42 Tuesday, January 15, 13
43. Mvc: Routing •Routing matches the Request to a Controller (really a set of parameters that the dispatch listener will use to marshall a controller) •Route definitions are a tree structure (i.e., routes can have child routes!) Zend\Mvc\Router implementation •(See Ben Scholzens Zendcon Router Slides) 43 Tuesday, January 15, 13
44. Mvc: Routing •Literal: /foo •Segment: /literal/:id[/:optional] •Regex:/literal(?P<id>[a-f0-9]{8}) •Scheme •Method •Wildcard 44 Tuesday, January 15, 13
45. Mvc: Controllers •Controllers are Services •Controllers must implement Zend\Stdlib \DispatchableInterface more useful to extend a base controller: •AbstractController •AbstractActionController •AbstractRestfulController 45 Tuesday, January 15, 13
46. 46 Tuesday, January 15, 13
47. Everything is a Module 47 Tuesday, January 15, 13
48. Philosophy •Models are still up to you to decide how to implement •More functionality can be found in 3rd party modules ... •so ......... 48 Tuesday, January 15, 13
49. Insert->Header & Footer Back to Modules 49 Tuesday, January 15, 13
50. Build your own •Module Skeleton available for download tarball •Via composer •https://github.com/zendframework/ ZendSkeletonModule 50 Tuesday, January 15, 13
51. Or, 3rd Party Modules •“Theres a module for that” •http://modules.zendframework.com/ ZfcUser (ZF Commons) PhlyRestfully (Matthews Rest module) DoctrineModule ScnSocialAuth •Download or use composer to put in vendor/ 51 Tuesday, January 15, 13
52. Enabling them 52 Tuesday, January 15, 13
53. Insert->Header & Footer Exploring / Development / Misc. 53 Tuesday, January 15, 13
54. Explore via Debugging •Places for breakpoints: Inside Zend\Mvc\Route::onRoute() Inside Zend\Mvc\DispatchListener::onDispatch() Inside Zend\Mvc\Controller \AbstactActionController::onDispatch() Various: Zend\Mvc\View\Http\* 54 Tuesday, January 15, 13
55. Want ZF2 As a Microframework? •https://github.com/weierophinney/phlyty 55 Tuesday, January 15, 13
56. Other components? •Zend\Db re-written •Service components moved out to own namespace / repository •Full auto-wiring / auto-instantiation in Zend\DI •Zend\Form re-architected ground up •Zend\Http re-architected ground up 56 Tuesday, January 15, 13
57. Per-component Packages •http://packages.zendframework.com/ •http://framework.zend.com/downloads Composer Pyrus Git submodules Tarball/zipball 57 Tuesday, January 15, 13
58. Contributing •http://framework.zend.com/participate •https://github.com/zendframework/zf2 Create issue reports Submit patches (pull requests) Review others patches Write tests •- Write documentation 58 Tuesday, January 15, 13
59. Participate •IRC General help: #zftalk Framework development: #zftalk.dev •Mailing lists http://framework.zend.com/archives •GitHub Issues / Pull Requests 59 Tuesday, January 15, 13
60. Insert->Header & Footer Thank You! Q / A? 60 Tuesday, January 15, 13