Yaf_Controller_Abstract (class)

The Yaf_Controller_Abstract class

Introduction

(Yaf >=1.0.0)

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()).

Note:

These arguments are directly fetched without filtering, it should be carefully processed before use them.

Class synopsis

final private void __clone ( void )

final private __construct ( void )

protected bool display ( string $tpl [, array $parameters ] )

public void forward ( string $action [, array $paramters ] )

public void getInvokeArg ( string $name )

public void getInvokeArgs ( void )

public string getModuleName ( void )

public Yaf_Request_Abstract getRequest ( void )

public Yaf_Response_Abstract getResponse ( void )

public Yaf_View_Interface getView ( void )

public void getViewpath ( void )

public void init ( void )

public void initView ([ array $options ] )

public bool redirect ( string $url )

protected string render ( string $tpl [, array $parameters ] )

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) {
       /* $name and $id are unsafe raw data */
       assert($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

controller name

_request

current request object

_response

current response object

_invoke_args

_view

view engine object

Table of Contents

• Yaf_Controller_Abstract::__clone — Yaf_Controller_Abstract can not be cloned
• Yaf_Controller_Abstract::__construct — Yaf_Controller_Abstract constructor
• Yaf_Controller_Abstract::display — The display purpose
• Yaf_Controller_Abstract::forward — foward to another action
• Yaf_Controller_Abstract::getInvokeArg — The getInvokeArg purpose
• Yaf_Controller_Abstract::getInvokeArgs — The getInvokeArgs purpose
• Yaf_Controller_Abstract::getModuleName — Get module name
• Yaf_Controller_Abstract::getRequest — Retrieve current request object
• Yaf_Controller_Abstract::getResponse — Retrieve current response object
• Yaf_Controller_Abstract::getView — Retrieve the view engine
• Yaf_Controller_Abstract::getViewpath — The getViewpath purpose
• Yaf_Controller_Abstract::init — Controller initializer
• Yaf_Controller_Abstract::initView — The initView purpose
• Yaf_Controller_Abstract::redirect — Redirect to a URL
• Yaf_Controller_Abstract::render — Render view template
• Yaf_Controller_Abstract::setViewpath — The setViewpath purpose