The Yaf_Plugin_Abstract class

The Yaf_Plugin_Abstract class

(No version information available, might only be in SVN)

Introduction

Plugins allow for easy extensibility and customization of the framework.

Plugins are classes. The actual class definition will vary based on the component -- you may need to implement this interface, but the fact remains that the plugin is itself a class.

A plugin could be loaded into Yaf by using Yaf_Dispatcher::registerPlugin(), after registerd, All the methods which the plugin implemented according to this interface, will be called at the proper time.

Examples

Example #1 Plugin example

<?php
   
/* bootstrap class should be defined under ./application/Bootstrap.php */
   
class Bootstrap extends Yaf_Bootstrap_Abstract {
        public function 
_initPlugin(Yaf_Dispatcher $dispatcher) {
            
/* register a plugin */
            
$dispatcher->registerPlugin(new TestPlugin());
        }
   }

   
/* plugin class should be placed under ./application/plugins/ */
   
class TestPlugin extends Yaf_Plugin_Abstract {
        public function 
routerStartup(Yaf_Request_Abstract $requestYaf_Response_Abstract $response) {
            
/* before router 
               in this hook,  user can do some url rewrite */
            
var_dump("routerStartup");
        }
        public function 
routerShutdown(Yaf_Request_Abstract $requestYaf_Response_Abstract $response) {
            
/* router complete 
               in this hook, user can do login check */
            
var_dump("routerShutdown");
        }
        public function 
dispatchLoopStartup(Yaf_Request_Abstract $requestYaf_Response_Abstract $response) {
            
var_dump("dispatchLoopStartup");
        }
        public function 
preDispatch(Yaf_Request_Abstract $requestYaf_Response_Abstract $response) {
            
var_dump("preDispatch");
        }
        public function 
postDispatch(Yaf_Request_Abstract $requestYaf_Response_Abstract $response) {
            
var_dump("postDispatch");
        }
        public function 
dispatchLoopShutdown(Yaf_Request_Abstract $requestYaf_Response_Abstract $response) {
            
/* final hoook
               in this hook user can do loging or implement layout */
            
var_dump("dispatchLoopShutdown");
        }
   }

   Class 
IndexController extends Yaf_Controller_Abstract {
        public function 
indexAction() {
            return 
FALSE//prevent rendering
        
}
   }

   
$config = array(
       
"application" => array(
           
"directory" => dirname(__FILE__) . "/application/",
       ),
   );
 
   
$app = new Yaf_Application($config);
   
$app->bootstrap()->run();
?>

The above example will output something similar to:

string(13) "routerStartup"
string(14) "routerShutdown"
string(19) "dispatchLoopStartup"
string(11) "preDispatch"
string(12) "postDispatch"
string(20) "dispatchLoopShutdown"

Class synopsis

Yaf_Plugin_Abstract {
/* Methods */
public void dispatchLoopStartup ( Yaf_Request_Abstract $request , Yaf_Response_Abstract $response )
public void postDispatch ( Yaf_Request_Abstract $request , Yaf_Response_Abstract $response )
public void preDispatch ( Yaf_Request_Abstract $request , Yaf_Response_Abstract $response )
public void preResponse ( Yaf_Request_Abstract $request , Yaf_Response_Abstract $response )
public void routerShutdown ( Yaf_Request_Abstract $request , Yaf_Response_Abstract $response )
public void routerStartup ( Yaf_Request_Abstract $request , Yaf_Response_Abstract $response )
}

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