Multiple Extbase Plugins on same Page (PHP)

<?php

// @see http://pastebin.com/Gn08KMN0 for TypoScript Code

/*                                                                      *
 *  COPYRIGHT NOTICE                                                    *
 *                                                                      *
 *  (c) 2011 Tim Schoch <[email protected]>                               *
 *           GSTALTIG GMBH                                              *
 *           All rights reserved                                        *
 *                                                                      *
 *  This script is part of the TYPO3 project. The TYPO3 project is      *
 *  free software; you can redistribute it and/or modify                *
 *  it under the terms of the GNU General Public License as published   *
 *  by the Free Software Foundation; either version 2 of the License,   *
 *  or (at your option) any later version.                              *
 *                                                                      *
 *  The GNU General Public License can be found at                      *
 *  http://www.gnu.org/copyleft/gpl.html.                               *
 *                                                                      *
 *  This script is distributed in the hope that it will be useful,      *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of      *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the       *
 *  GNU General Public License for more details.                        *
 *                                                                      *
 *  This copyright notice MUST APPEAR in all copies of the script!      *
 *                                                                      */

/**
 * Extended RequestBuilder that allows the same Plugin to be placed on the page more then once
 * if the switchableControllerActions are used to determine what actions can be displayed
 *
 * @package Gstbase
 * @subpackage MVC\Web
 */
class Tx_Gstbase_MVC_Web_RequestBuilder extends Tx_Extbase_MVC_Web_RequestBuilder {

  /**
   * Extends the default Method allowing the same Plugin to be placed on the page more then once
   * if the switchableControllerActions are used to determine what actions can be displayed
   *
   * Original Description:
   * Returns the current actionName extracted from given $parameters.
   * If no action is specified, the defaultActionName will be returned.
   * If that's not available or the specified action is not defined in the current plugin, an exception is thrown.
   *
   * @param $controllerName
   * @param array $parameters
   * @return string
   * @throws t3lib_error_http_PageNotFoundException|Tx_Extbase_MVC_Exception|Tx_Extbase_MVC_Exception_InvalidActionName if the action could not be resolved
   */
   protected function resolveActionName($controllerName, array $parameters) {
    try{
      return parent::resolveActionName( $controllerName, $parameters );
    }
    catch( Exception $e ) {
        // catch «not allowed by this plugin» Exception only
      if( $e instanceof Tx_Extbase_MVC_Exception_InvalidActionName ) {
        unset( $parameters['action'] );
        return parent::resolveActionName( $controllerName, $parameters );
      }
        // forward other exceptions
      else {
        throw $e;
      }
    }
  }
}
?>