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/home/develito/www/modules/mod_articles_faq/helper.php

<?php
/**
 * @package     Joomla.Site
 * @subpackage  mod_articles_thumbnails
 *
 * @copyright	Copyright © 2016 - All rights reserved.
 * @license		GNU General Public License v2.0
 * @author 		Sergio Iglesias (@sergiois)
 */

// no direct access
defined('_JEXEC') or die;

JLoader::register('ContentHelperRoute', JPATH_SITE . '/components/com_content/helpers/route.php');
JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_content/models', 'ContentModel');

class modarticlesfaqHelper {
    static function getItems($params){
		// Get an instance of the generic articles model
		$model     = JModelLegacy::getInstance('Articles', 'ContentModel', array('ignore_request' => true));
		
		// Set application parameters in model
		$app       = JFactory::getApplication();
		$appParams = $app->getParams();
		$model->setState('params', $appParams);

// Set the filters based on the module params
		$model->setState('list.start', 0);
		$model->setState('list.limit', (int) $params->get('count'));
		$model->setState('filter.published', 1);
		$model->setState('filter.featured', $params->get('show_front', 1) == 1 ? 'show' : 'hide');

// Access filter
		$access = !JComponentHelper::getParams('com_content')->get('show_noauth');
		$authorised = JAccess::getAuthorisedViewLevels(JFactory::getUser()->get('id'));
		$model->setState('filter.access', $access);

// Category filter
		$model->setState('filter.category_id', $params->get('catid', array()));

// Filer by tag
		$model->setState('filter.tag', $params->get('tag', array()));
		
		// Filter by language
		$model->setState('filter.language', $app->getLanguageFilter());

// Ordering
		if($params->get('ordering') == 'random')
        {
            $model->setState('list.ordering', JFactory::getDbo()->getQuery(true)->Rand());
        }
        else
        {
            $model->setState('list.ordering', 'a.'.$params->get('ordering', 'publish_up'));
            $model->setState('list.direction', $params->get('direction', 'DESC'));
        }

$items = $model->getItems();
		foreach ($items as &$item)
		{
			$item->slug    = $item->id . ':' . $item->alias;
			$item->catslug = $item->catid . ':' . $item->category_alias;

if ($access || in_array($item->access, $authorised))
			{
				// We know that user has the privilege to view the article
				$item->link = JRoute::_(ContentHelperRoute::getArticleRoute($item->slug, $item->catid, $item->language));
			}
			else
			{
				$item->link = JRoute::_('index.php?option=com_users&view=login');
			}
		}

return $items;
	}
}