The Yaf_Plugin_Abstract class

    (Yaf >=1.0.0)

    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 registering, 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 $request, Yaf_Response_Abstract $response) {
    /* before router
    in this hook, user can do some url rewrite */
    var_dump("routerStartup");
    }
    public function     routerShutdown(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) {
    /* router complete
    in this hook, user can do login check */
    var_dump("routerShutdown");
    }
    public function     dispatchLoopStartup(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) {
    var_dump("dispatchLoopStartup");
    }
    public function     preDispatch(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) {
    var_dump("preDispatch");
    }
    public function     postDispatch(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) {
    var_dump("postDispatch");
    }
    public function     dispatchLoopShutdown(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) {
    /* final hook
    in this hook user can do logging 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

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

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    User Contributed Notes 1 note

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    1
    gianjason#gmail.com
    11 years ago
    All the methods which the plugin implemented according to this interface, will be called at the proper time automatically.
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