コアライブラリのエレガントなハック

第 5 回 CakePHP 勉強会@Tokyo

ON 2010/5/29( 土 )

Files

http://bit.ly/cakestudy_hiromi

About me Name: 清水 紘己（ Shimizu Hiroki ） Call me hiromi ! （ @hiromi2424 ） Action about CakePHP

TranslationNew features reportTransitionComponentFew Patches/Tickets

I love singing, Ramen and Beer!

INDEX Introduction Hacks

ComponentsHelpersModelsCakeRouteEngines

Introduction

Why hack?

Embedding Application Policy

Why hack?

Deep Debugging

Why hack?

For Stub (Mock object)

How hack? Hook object mapping like alias

This session focuses this Provided hook

Userland import App/libs/* Copy the file from Core to App Replace, done

Dirty Hack

Impossible/Non-elegance Static Classes Basic functions

Use Lithium

Hacks

Hack components

Components - ACL Provided hook Configure::write('Acl.classname‘, ‘MyAcl’) MyAclComponent extends AclBase Implements methods

… lots of.

Components - Others Replaces mapped objects Component::_loaded[$key]

Reference to object Hook timing

Initialize()

Components - Others

init() initialize() startup()

Configuration

Component class flow

Mapping objects

Startingprocess

Hook

Components - Others

Auth::__construct() Auth::initialize()

$loaded[‘Session’] Existent

Existent$loaded[‘Auth’] Undefined

$loaded[‘Security’] Undefined

Session initialized NO YES

Auth initialized NO Initializing now

Security initialized NO NO

var $components = (‘Session’, ’Auth’, ‘Security’);

Components - Others $Component->enabled = boolean SessionComponent::__construct($base) Workaround double initialized Import original settings

AliasComponent

Hack helpers

Helpers Replaces mapped objects $view::loaded[$key]

Reference to object Hook timing

beforeRender() View::_loadHelpers()

AliasHelper

Hacks Models

Models ClassRegistry::init() alias option Example

ClassRegistry::init(array(‘class’ => ‘MockPost’,‘alias’ => ‘Post’,

)) Initialization timing

Before Controller::constructClasses

Hacks CakeRoute

CakeRoute From 1.3 (Plugin | App)/libs/routes/my_route.php App::import(‘Lib’, ‘routes/MyRoute’) Router::connect(…, …, array(‘routeClass’ => ‘MyRoute’))

class MyRoute extends CakeRoute Implement methods

parse()match()ETC…

CakeRoute parse()

Parsing given URL to parameters.Helping additional parameters

CakeRoute match()

Convert parameters to proper URL.Reverse RoutingHelping generation of URL

CakeRoute Example

Mark Story wrote great example on his BLOG I added reverse routing

Engines

Cache (Plugin | App)/libs/cache/my_cache.php Cache::config(‘default’, array(‘engine’ => MyCache))

class MyCache extends CacheEngine Implement methods

write()read()delete()

CakeLog From 1.3 (Plugin | App)/libs/log/my_logger.php CakeLog::config(‘my’, array(‘engine’ => MyCache))

class MyLogger Implement methods

write() only Example

if($type == ‘error’) file logging and mail to admin

Conclusion

Hacks rarely needed? CakePHP is realy needed? Learn Possible/Impossible CakePHP2.0 features -> alias