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zf2-for-common

Ralph Schindler
April 10, 2013
160

 zf2-for-common

Ralph Schindler

April 10, 2013
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  1. ZF2 For COMMON
    by Ralph Schindler
    Wednesday, April 10, 13

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  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
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  3. Before we get started
    •Slides:
    https://speakerdeck.com/ralphschindler/zf2-for-common
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  4. Outline of Talk
    •ZF2 Intro
    •ZF2 Application Quickstart
    •MVC Application Core Concepts
    •Zend\Db Connectivity
    •Modules / Exploring / Development
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  5. ZF 2.0
    •Next generation of Zend Framework
    •Embrace 5.3 (and 5.4 in some places, not required)
    •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
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  6. Insert->Header & Footer
    ZF2 Application Quickstart
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  7. Quickstart
    •Get ZF2 Application Skeleton:
    download the zip
    [or] use composer’s create-skeleton
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  8. Skeleton
    •Download skeleton
    https://github.com/zendframework/ZendSkeletonApplication
    •Copy files to project on i
    •Start coding!
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  9. Insert->Header & Footer
    Tutorial / Demo
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  10. Insert->Header & Footer
    Core Concepts
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  11. Why Core Concepts
    •“How does my action controller get dispatched?”
    •“How do I create re-usable components/modules
    for my team/public consumption?”
    •“I’m just generally curious about the
    architecture.”
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  12. 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
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  13. Insert->Header & Footer
    Zend\EventManager
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  14. Events
    •Some objects trigger an events
    •Some objects listen for events
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  15. 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.
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  16. Example: Listener
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  17. Example: Triggering
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  18. Example: Implication
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  19. Other Features
    •Shared listeners
    attach listeners even when you don't have the
    target instance
    •Priority
    specify the order in which listeners are
    triggered
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  20. •Stop propagation
    from inside a listener, or based on the result of a
    listener
    •Aggregate and introspect listener results
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  21. Insert->Header & Footer
    Zend\ServiceManager
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  22. Services
    •Objects you work with (including Controllers!)
    •Substitutable, replaceable
    •Define how you want them built
    •Inversion of Control
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  23. 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)
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  24. Examples notes
    •Can be done programmatically
    •Or in Zend\Mvc Application: via configuration
    •(both shown)
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  25. Instances
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  26. Invokables
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  27. Factories
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  28. Abstract Factories
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  29. Aliases
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  30. Initializers
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  31. 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
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  32. Services Are Configurable
    •Application configuration
    •Module classes (we'll get to that...)
    •Module configuration
    •"Global" and "Local" override configuration
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  33. Insert->Header & Footer
    Modules &
    Zend\ModuleManager
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  34. 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
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  35. “stuff”
    •At least a namespaced “Module.php”
    •... anything:
    file assets
    classes
    mvc members
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  36. Zend\ModuleManager
    •Loops through modules
    •Consumes the EventManager to:
    Triggers an event for each module
    allowing listeners to act on Module classes
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  37. 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
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  38. 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
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  39. Simple Example
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  40. Insert->Header & Footer
    Zend\Mvc
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  41. Zend\Mvc
    •Composes EventManager so that Everything is an
    Event
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  42. Everything Is An Event
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  43. The MVC Events
    •bootstrap
    •route
    •dispatch and dispatch.error
    •render (and, in 2.1, render.error)
    •finish
    •(These are actual event names)
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  44. 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)
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  45. Mvc: Routing
    •Literal: /foo
    •Segment: /literal/:id[/:optional]
    •Regex:/literal(?P[a-f0-9]{8})
    •Scheme
    •Method
    •Wildcard
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  46. Mvc: Controllers
    •Controllers are Services
    •Controllers must implement Zend\Stdlib
    \DispatchableInterface
    more useful to extend a base controller:
    •AbstractController
    •AbstractActionController
    •AbstractRestfulController
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  48. Everything is a Module
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  49. Philosophy
    •Models are still up to you to decide how to
    implement
    •More functionality can be found in 3rd party
    modules ...
    •so .........
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  50. Insert->Header & Footer
    Back to Modules
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  51. Build your own
    •Module Skeleton available for download tarball
    •Via composer
    •https://github.com/zendframework/
    ZendSkeletonModule
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  52. 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/
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  53. Enabling them
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  54. Insert->Header & Footer
    Exploring / Development / Misc.
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  55. 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\*
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  56. Want ZF2 As a Microframework?
    •https://github.com/weierophinney/phlyty
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  57. 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
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  58. Insert->Header & Footer
    Zend\Db (for the i)
    Just a few words & examples
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  59. Connecting
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  60. •SQL Examples
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  61. Insert->Header & Footer
    Wrapping up
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  62. Per-component Packages
    •http://packages.zendframework.com/
    •http://framework.zend.com/downloads
    Composer
    Pyrus
    Git submodules
    Tarball/zipball
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  63. 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
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  64. Participate
    •IRC
    General help: #zftalk
    Framework development: #zftalk.dev
    •Mailing lists
    http://framework.zend.com/archives
    •GitHub Issues / Pull Requests
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  65. Insert->Header & Footer
    Thank You!
    Q / A?
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