Как из контроллера перенести самописный код в плагин? - Общие вопросы и ошибки

$app = JFactory::getApplication();
$app->triggerEvent('onBeforeOrderSave', array($cid, $post));

public function onBeforeOrderSave($cid, $post){
}

// Вызываем com_finder для получения его результатов
$cpath = JPATH_SITE.'/components/com_finder';
if(!class_exists('FinderController')) require($cpath.'/controller.php');
if(!class_exists('JHtmlQuery')) require($cpath.'/helpers/html/query.php');
if(!class_exists('JHtmlFilter')) require($cpath.'/helpers/html/filter.php');
$config = array('base_path' => $cpath);
$ctrl = new FinderController($config);
$model = $ctrl->getModel('Search', 'FinderModel');
$view =& $ctrl->getView('search', 'html');
$view->addTemplatePath($cpath.'/views/search/tmpl');
$input->set('view', 'search');
$ctrl->display();

$cpath = JPATH_SITE.'/components/com_joomshopping';
if(!class_exists('JoomShoppingController')) require($cpath.'/controller.php');
$config = array('base_path' => $cpath);
$ctrl = new JoomShoppingController($config);
$ctrl->имя_метода_контроллера();

 JPluginHelper::importPlugin('jshoppingorder');

$cpath = JPATH_ADMINISTRATOR.'/components/com_joomshopping/controllers';
if(!class_exists('JshoppingControllerOrders')) require_once($cpath.'/orders.php');
$config = array('base_path' => $cpath);
$ctrl = new JshoppingControllerOrdersEx($config);

$cpath = JPATH_ADMINISTRATOR.'/components/com_jshopping/controllers';
if(!class_exists('JshoppingControllerOrders')) require_once($cpath.'/orders.php');
$config = array('base_path' => $cpath);
$ctrl = new JshoppingControllerOrders($config);

if(!class_exists('JshoppingControllerOrders')) require_once($cpath.'/orders.php');

$ctrl = new JshoppingControllerOrders($config);