Проблема с публикацией нового модуля. er.php и class в нем - Joomla 3.x: Общие вопросы

...
<field name="enable_cat" type="textarea" default="0" label="Show only category ID" description="Show only category ID. Сomma separated categories. Еxample for several categories: '1,2,3,...' or '1, 2, 3, ...' " />
...

[code]defined('_JEXEC') or die;
require_once dirname(__FILE__). '/helper.php';
$enable_cat = $params->get('enable_cat', 0);
$categories = modJoomshoppingChildscatHelper::getParentcategory($params);
require JModuleHelper::getLayoutPath('mod_joomshopping_childscat', $params->get('layout', 'default'));

defined('_JEXEC') or die;

class modJoomshoppingChildscatHelper
{
	public static function getParentcategory(&$params)
	{

		$module = JModuleHelper::getModule('mod_joomshopping_childscat'); 
		$moduleParams = new JRegistry(); 
		$moduleParams->loadString($module->params); 
		$enable_cat = $moduleParams->get('enable_cat', 0);
		
		$cid   = JRequest::getInt('category_id');
		$lang  = JSFactory::getLang();
		$db    = JFactory::getDbo();
		$query = $db->getQuery(true);
		$query->select('`category_id` AS id, `' . $lang->get('name'). '` AS name,`short_description_ru-RU` AS descript');
		$query->select('`category_image` AS image');
		$query->from('#__jshopping_categories');
		$query->where('category_parent_id > 0');
		$query->where('category_publish = 1');
		$query->where('category_parent_id =' . $cid);
		
		if($enable_cat!=0) {
		$query->where('category_id IN ('.$enable_cat.')');
		}
		
		$query->order('ordering ASC');
		$db->setQuery($query);

		$categories = $db->loadObjectList();

		return $categories;
	}

}

<ul id="js_ccmenu" class="art-vmenu">
<?php
	defined('_JEXEC') or die;
	foreach ($categories as $category)
	{
		$link = SEFLink('index.php?option=com_jshopping&controller=category&task=view&category_id=' . $category->id, 1);
		echo '<li class="js_childscat"><a class="js_childscat_a" href="' . $link . '">' . $category->name . '</a></li>';
	}
	?>
</ul>

вместо
require_once dirname(__FILE__). '/helper.php';

прописал
JLoader::register('modJoomshoppingChildscatHelper', __DIR__ . '/helper.php');

вместо
$module = JModuleHelper::getModule('mod_joomshopping_childscat'); 
$moduleParams = new JRegistry(); 
$moduleParams->loadString($module->params); 
$enable_cat = $moduleParams->get('enable_cat', 0);

прописал
$enable_cat = $params->get('enable_cat', 0);