helper.php
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<?php
/**
* @package Joomla.Site
* @subpackage mod_related_items
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
JLoader::register('ContentHelperRoute', JPATH_SITE . '/components/com_content/helpers/route.php');
/**
* Helper for mod_related_items
*
* @since 1.5
*/
abstract class ModRelatedItemsHelper
{
/**
* Get a list of related articles
*
* @param \Joomla\Registry\Registry &$params module parameters
*
* @return array
*/
public static function getList(&$params)
{
$db = JFactory::getDbo();
$app = JFactory::getApplication();
$user = JFactory::getUser();
$groups = implode(',', $user->getAuthorisedViewLevels());
$date = JFactory::getDate();
$maximum = (int) $params->get('maximum', 5);
// Get an instance of the generic articles model
JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_content/models');
$articles = JModelLegacy::getInstance('Articles', 'ContentModel', array('ignore_request' => true));
if ($articles === false)
{
JFactory::getApplication()->enqueueMessage(JText::_('JERROR_AN_ERROR_HAS_OCCURRED'), 'error');
return array();
}
// Set application parameters in model
$appParams = $app->getParams();
$articles->setState('params', $appParams);
$option = $app->input->get('option');
$view = $app->input->get('view');
if (!($option === 'com_content' && $view === 'article'))
{
return array();
}
$temp = $app->input->getString('id');
$temp = explode(':', $temp);
$id = $temp[0];
$nullDate = $db->getNullDate();
$now = $date->toSql();
$related = array();
$query = $db->getQuery(true);
if ($id)
{
// Select the meta keywords from the item
$query->select('metakey')
->from('#__content')
->where('id = ' . (int) $id);
$db->setQuery($query);
try
{
$metakey = trim($db->loadResult());
}
catch (RuntimeException $e)
{
JFactory::getApplication()->enqueueMessage(JText::_('JERROR_AN_ERROR_HAS_OCCURRED'), 'error');
return array();
}
// Explode the meta keys on a comma
$keys = explode(',', $metakey);
$likes = array();
// Assemble any non-blank word(s)
foreach ($keys as $key)
{
$key = trim($key);
if ($key)
{
$likes[] = $db->escape($key);
}
}
if (count($likes))
{
// Select other items based on the metakey field 'like' the keys found
$query->clear()
->select('a.id')
->from('#__content AS a')
->where('a.id != ' . (int) $id)
->where('a.state = 1')
->where('a.access IN (' . $groups . ')');
$wheres = array();
foreach ($likes as $keyword)
{
$wheres[] = 'a.metakey LIKE ' . $db->quote('%' . $keyword . '%');
}
$query->where('(' . implode(' OR ', $wheres) . ')')
->where('(a.publish_up = ' . $db->quote($nullDate) . ' OR a.publish_up <= ' . $db->quote($now) . ')')
->where('(a.publish_down = ' . $db->quote($nullDate) . ' OR a.publish_down >= ' . $db->quote($now) . ')');
// Filter by language
if (JLanguageMultilang::isEnabled())
{
$query->where('a.language in (' . $db->quote(JFactory::getLanguage()->getTag()) . ',' . $db->quote('*') . ')');
}
$db->setQuery($query, 0, $maximum);
try
{
$articleIds = $db->loadColumn();
}
catch (RuntimeException $e)
{
JFactory::getApplication()->enqueueMessage(JText::_('JERROR_AN_ERROR_HAS_OCCURRED'), 'error');
return array();
}
if (count($articleIds))
{
$articles->setState('filter.article_id', $articleIds);
$articles->setState('filter.published', 1);
$related = $articles->getItems();
}
unset($articleIds);
}
}
if (count($related))
{
// Prepare data for display using display options
foreach ($related as &$item)
{
$item->slug = $item->id . ':' . $item->alias;
/** @deprecated Catslug is deprecated, use catid instead. 4.0 */
$item->catslug = $item->catid . ':' . $item->category_alias;
$item->route = JRoute::_(ContentHelperRoute::getArticleRoute($item->slug, $item->catid, $item->language));
}
}
return $related;
}
}