The Yaf_Controller_Abstract class

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Introduction

Yaf_Controller_Abstract is the heart of Yaf's system. MVC stands for Model-View-Controller and is a design pattern targeted at separating application logic from display logic.

Every custom controller shall inherit Yaf_Controller_Abstract.

You will find that you can not define __construct function for your custom controller, thus, Yaf_Controller_Abstract provides a magic method: Yaf_Controller_Abstract::init().

If you have defined a init() method in your custom controller, it will be called as long as the controller was instantiated.

Action may have arguments, when a request coming, if there are the same name variable in the request parameters(see Yaf_Request_Abstract::getParam()) after routed, Yaf will pass them to the action method(see Yaf_Action_Abstract::execute()).

Class synopsis

abstract Yaf_Controller_Abstract {
/* Properties */
public $actions ;
protected $_module ;
protected $_name ;
protected $_request ;
protected $_response ;
protected $_invoke_args ;
protected $_view ;
/* Methods */
final private void __clone ( void )
final private __construct ( void )
final protected void display ( string $tpl [, array $parameters ] )
final public void forward ( string $module [, string $controller [, string $action [, array $paramters ]]] )
final public void getInvokeArg ( string $name )
final public void getInvokeArgs ( void )
final public void getModuleName ( void )
final public void getRequest ( void )
final public void getResponse ( void )
final public void getView ( void )
final public void getViewpath ( void )
final public void initView ([ array $options ] )
final public void redirect ( string $url )
final protected void render ( string $tpl [, array $parameters ] )
final public void setViewpath ( string $view_directory )
}

Properties

actions

You can also define a action method in a separate PHP script by using this property and Yaf_Action_Abstract.

Example #1 define action in a separate file

<?php
class IndexController extends Yaf_Controller_Abstract {
    protected $actions = array(
        /** now dummyAction is defined in a separate file */
        "dummy" => "actions/Dummy_action.php",
    );

    /* action method may have arguments */
    public indexAction($name, $id) {
       assert($name == $this->getRequest()->getParam("name"));
       assert($id   == $this->_request->getParam("id"));
    }
}
?>

Example #2 Dummy_action.php

<?php
class DummyAction extends Yaf_Action_Abstract {
    /* a action class shall define this method  as the entry point */
    public execute() {
    }
}
?>

_module

module name

_name

_request

the request object

_response

_invoke_args

_view

view engine object

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