<?php
/**
 * HelperAssign.php
 * 
 * @category   Naneau
 * @package    Naneau_Action_Helper
 * @copyright  Copyright (c) 2007 Maurice Fonk - http://naneau.nl
 * @version    0.1
 */

/**
 * action helper base class
 */
require_once 'Zend/Controller/Action/Helper/Abstract.php';

/**
 * Naneau_Action_Helper_HelperAssign
 * 
 * Small helper to assign all helpers to controllers for direct access
 *
 * @category   Naneau
 * @package    Naneau_Action_Helper
 * @copyright  Copyright (c) 2007 Maurice Fonk - http://naneau.nl
 */
class Naneau_Action_Helper_HelperAssign extends Zend_Controller_Action_Helper_Abstract {

    /**
     * use underscore?
     * 
     * Using underscores is the proper way of doing it, given the coding
     * standard for the Zend Framework.
     *
     * @var bool
     */
    private $_useUnderscore = true;
    
    private $_plugins;

    
    public function preDispatch() {
        $controller = $this->getActionController();
        
        foreach (Zend_Controller_Action_HelperBroker::getExistingHelpers() as $helper) {
            $name = $helper->getName();
            if ($name != 'HelperAssign') {
                $this->assign($name, $helper);
            }
        }
        
        $controller = $this->getActionController();
        foreach($this->_plugins as $name => $plugin) {
            $controller->$name = $plugin;
        }
    }
    
    public function assign($name, $class)
    {
        if ($this->_useUnderscore) {
            $name = ltrim($name, '_');
        }
        
        if (! array_key_exists($name, $this->_plugins)) {
            $this->_plugins[$name] = $class;
        }
    }
}