Kohana Framework

Kohana is an elegant HMVC PHP5 framework that provides a rich set of components for building web applications. These slides describe some useful features in Kohana.

Transcript

1. Kohana Framework Leong Hean Hong @hongster 2012-11-28
2. About • Describe some of the features of Kohana that I (dis)like.
3. Origin • Fork from CodeIgniter • v2.x = CI + ORM on PHP5 • v3.x = Complete rewrite of v2.x
4. Code Organization /vendor/ - 3rd party libraries. /system/ - System core. /modules/ - Sub MVC modules. E.g. Auth, ORM, Database, Unit Test, ... /application/classes/ - All classes, including controllers & models. /application/config/ /application/views/ /application/i18n/ - Translations
5. Convention • Underscore instead of underscore/camelcase mixture. • Underscores in class name reflects location. Controller_Welcome -> classes/Controller/Welcome.php Database_Query -> classes/Database/Query.php • BSD/Allman style bracketing
6. Namespace • Have not utilized PHP namespacing. • Depends on underscore naming convention to avoid conflicts. (not ideal)
7. Cascading Filesystem
8. Cascading Filesystem • EVERY (system) classes can be extended/replaced. • /application/classes/Encrypt.php replaces /system/classes/Encrypt.php • /application/config/auth.php replaces /modules/auth/config/auth.php
9. Autoloading • The cascading filesystem defines how Kohana search for files. Kohana: $foo = new Foo; CakePHP: App::uses('Lib', 'Foo'); $foo = new Foo();
10. Model • Non-ORM by default. • Model can extend ORM class. • Supports query builder. • Query returns model objects, instead of array • Associated models loads on demand.
11. Model $user = ORM::factory('User') ->where('id', '=', 20) ->find(); $posts = $user->Posts->find_all(); foreach ($posts as $post) { echo $post->publish_date; }
12. View • Normal PHP, no templating engine. • Supports views in views echo View::factory('user/login')->bind('user', $user); Loading view in controller: public function action_about() { $this->response->body(View::factory('pages/about')); }
13. Routing • Supports regex Route::set('default', '(<controller>(/<action>(/<id>)))') ->defaults(array( 'controller' => 'Welcome', 'action' => 'index', )); Route::set('gallery', '<action>(<controller>):<id>', array( 'controller' => '[A-Z][a-z]++', 'action' => '[A-Z][a-z]++', )) ->defaults(array( 'controller' => 'Slideshow', ));
14. Routing • Custom function Route::set('testing', 'foo') ->filter(array('Class', 'method_to_process_my_uri')); Route::set('save-form', 'save') ->filter(function($route, $params, $request) { if ($request->method() !== HTTP_Request::POST) { return FALSE; // This route only matches POST requests } });
15. Routing • Name based routing Route::set('feeds', '<user_id>(/<action>).<format>', array( 'user_id' => '\d+', 'format' => '(rss|atom|json)', )) ->defaults(array( 'controller' => 'Feeds', 'action' => 'status', )); $url = Route::get('feeds')->uri(array( 'user_id' => $user_id, 'action' => 'comments', 'format' => 'rss' ));
16. HMVC Ref: http://bit.ly/ToEXSt
17. HMVC $resp = Request::factory('http://site.com/foo/bar') ->execute() ->response; $resp = Request::factory('foo/bar') ->execute() ->response;
18. Support • Active and helpful forum. • Get answers at StackOverflow • Lack documentation. • Source code well documented, easy to understand. • API browser generated using PHPDoc.
19. Thanks!
20. Automagic Overload Kohana: echo Form::input('name', 'home'); <input type="text" name="name" value="hong" /> CakePHP: <?php echo $this->Form->input('name'); ?> <div class="input text"><label for="UserName" >Name</label><input name="data[User][name]" type="text" id="UserName"/></div> <?php echo $this->Form->input('name', array('div' => false, 'label' => false)); ?> <input name="data[User][name]" type="text" id="UserName"/>