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<?php
/**
* @package Joomla.Site
* @subpackage com_jdownloads
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*
* Modified by Arno Betz for jDownloads
*/
namespace JDownloads\Component\JDownloads\Site\Helper;
\defined('_JEXEC') or die;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\LanguageHelper;
use Joomla\CMS\Language\Multilanguage;
use Joomla\Component\Categories\Administrator\Helper\CategoryAssociationHelper;
use Joomla\Database\DatabaseInterface;
use JLoader;
use JDownloads\Component\JDownloads\Administrator\Helper\JDownloadsHelper;
use JDownloads\Component\JDownloads\Administrator\Helper\AssociationsHelper;
use JDownloads\Component\JDownloads\Administrator\Helper\JDownloadsAssociationsHelper;
use JDownloads\Component\JDownloads\Site\Helper\RouteHelper;
require_once JPATH_SITE.'/administrator/components/com_categories/src/Helper/CategoryAssociationHelper.php';
JLoader::register('JDownloadsHelper', JPATH_ADMINISTRATOR . '/components/com_jdownloads/src/Helper/JDownloadsHelper.php');
JLoader::register('RouteHelper', JPATH_SITE . '/components/com_jdownloads/src/Helper/RouteHelper.php');
JLoader::register('JDownloadsAssociationsHelper', JPATH_ADMINISTRATOR . '/components/com_jdownloads/src/Helper/associations.php');
JLoader::register('CategoryAssociationHelper', JPATH_ADMINISTRATOR . '/components/com_categories/src/Helper/CategoryAssociationHelper.php');
/**
* jDownloads Component Association Helper
*
* @since 3.0
*/
abstract class AssociationHelper extends CategoryAssociationHelper
{
/**
* Method to get the associations for a given item
*
* @param integer $id Id of the item
* @param string $view Name of the view
* @param string $layout View layout
*
* @return array Array of associations for the item
*
* @since 3.0
*/
public static function getAssociations($id = 0, $view = null, $layout = null)
{
$jinput = Factory::getApplication()->getInput();
$view = $view === null ? $jinput->get('view') : $view;
$component = $jinput->getCmd('option');
$id = empty($id) ? $jinput->getInt('id') : (int)$id;
if ($layout === null && $jinput->get('view') == $view && $component == 'com_jdownloads')
{
$layout = $jinput->get('layout', '', 'string');
}
if ($view === 'download')
{
if ($id)
{
$user = Factory::getApplication()->getIdentity();
$groups = implode(',', $user->getAuthorisedViewLevels());
$db = Factory::getContainer()->get(DatabaseInterface::class);
$advClause = [];
// Filter by user groups
$advClause[] = 'c2.access IN (' . $groups . ')';
// Filter by current language
$advClause[] = 'c2.language != ' . $db->quote(Factory::getApplication()->getLanguage()->getTag());
if (!$user->authorise('core.edit.state', 'com_jdownloads') && !$user->authorise('core.edit', 'com_jdownloads'))
{
// Filter by start and end dates.
$nullDate = $db->quote($db->getNullDate());
$date = Factory::getDate();
$nowDate = $db->quote($date->toSql());
//$advClause[] = '(c2.publish_up = ' . $nullDate . ' OR c2.publish_up <= ' . $nowDate . ')';
//$advClause[] = '(c2.publish_down = ' . $nullDate . ' OR c2.publish_down >= ' . $nowDate . ')';
$advClause[] = '(c2.publish_up IS NULL OR c2.publish_up <= ' . $nowDate . ')';
$advClause[] = '(c2.publish_down IS NULL OR c2.publish_down >= ' . $nowDate . ')';
// Filter by published
$advClause[] = 'c2.published = 1';
}
$associations = self::getJDAssociations('#__jdownloads_files', 'com_jdownloads.item', $id, 'id', 'alias', 'catid', $advClause);
$return = [];
foreach ($associations as $tag => $item){
$return[$tag] = RouteHelper::getDownloadRoute($item->id, (int) $item->catid, $item->language, $layout);
}
return $return;
}
}
if ($view === 'category' || $view === 'categories')
{
return JDownloadsAssociationsHelper::getCategoryAssociations($id, 'com_jdownloads', $layout); // associations.php
}
return array();
}
/**
* Method to display in frontend the associations for a given download
*
* @param integer $id Id of the download
*
* @return array An array containing the association URL and the related language object
*
* @since 3.7.0
*/
public static function displayAssociations($id)
{
$return = array();
if ($associations = self::getAssociations($id, 'download'))
{
$levels = Factory::getApplication()->getIdentity()->getAuthorisedViewLevels();
$languages = LanguageHelper::getLanguages();
foreach ($languages as $language)
{
// Do not display language when no association
if (empty($associations[$language->lang_code]))
{
continue;
}
// Do not display language without frontend UI
if (!array_key_exists($language->lang_code, LanguageHelper::getInstalledLanguages(0)))
{
continue;
}
// Do not display language without specific home menu
if (!array_key_exists($language->lang_code, Multilanguage::getSiteHomePages()))
{
continue;
}
// Do not display language without authorized access level
if (isset($language->access) && $language->access && !in_array($language->access, $levels))
{
continue;
}
$return[$language->lang_code] = array('item' => $associations[$language->lang_code], 'language' => $language);
}
}
return $return;
}
/**
* Get the associations.
*
* @param string $tablename The name of the table.
* @param string $context The context
* @param integer $id The primary key value.
* @param string $pk The name of the primary key in the given $table.
* @param string $aliasField If the table has an alias field set it here. Null to not use it
* @param string $catField If the table has a catid field set it here. Null to not use it
* @param array $advClause Additional advanced 'where' clause; use c as parent column key, c2 as associations column key
*
* @return array The associated items
*
* @since 3.1
*
* @throws \Exception
*
* Modified function from JLanguageAssociations::getAssociations() to make it compatible for jDownloads Category structure
* Hard coded part for Joomla categories removed/modified
*/
public static function getJDAssociations($tablename, $context, $id, $pk = 'id', $aliasField = 'alias', $catField = 'catid', $advClause = array())
{
// To avoid doing duplicate database queries.
static $multilanguageAssociations = array();
// Multilanguage association array key. If the key is already in the array we don't need to run the query again, just return it.
$queryKey = md5(serialize(array_merge(array($tablename, $context, $id), $advClause)));
if (!isset($multilanguageAssociations[$queryKey]))
{
$multilanguageAssociations[$queryKey] = array();
$db = Factory::getContainer()->get(DatabaseInterface::class);
$categoriesExtraSql = '';
$query = $db->getQuery(true)
->select($db->quoteName('c2.language'))
->from($db->quoteName($tablename, 'c'))
->join('INNER', $db->quoteName('#__associations', 'a') . ' ON a.id = c.' . $db->quoteName($pk) . ' AND a.context=' . $db->quote($context))
->join('INNER', $db->quoteName('#__associations', 'a2') . ' ON ' . $db->quoteName('a.key') . ' = ' . $db->quoteName('a2.key'))
->join('INNER', $db->quoteName($tablename, 'c2') . ' ON a2.id = c2.' . $db->quoteName($pk) . $categoriesExtraSql);
// Use alias field ?
if (!empty($aliasField))
{
$query->select(
$query->concatenate(
array(
$db->quoteName('c2.' . $pk),
$db->quoteName('c2.' . $aliasField),
),
':'
) . ' AS ' . $db->quoteName($pk)
);
}
else
{
$query->select($db->quoteName('c2.' . $pk));
}
// Use catid field ?
if (!empty($catField))
{
$query->join(
'INNER',
$db->quoteName('#__jdownloads_categories', 'ca') . ' ON ' . $db->quoteName('c2.' . $catField) . ' = ca.id')
->select(
$query->concatenate(
array('ca.id', 'ca.alias'),
':'
) . ' AS ' . $db->quoteName($catField)
);
}
$query->where('c.' . $pk . ' = ' . (int) $id);
// Advanced where clause
if (!empty($advClause))
{
foreach ($advClause as $clause)
{
$query->where($clause);
}
}
$db->setQuery($query);
try
{
$items = $db->loadObjectList('language');
}
catch (\RuntimeException $e)
{
throw new \Exception($e->getMessage(), 500, $e);
}
if ($items)
{
foreach ($items as $tag => $item)
{
// Do not return itself as result
if ((int) $item->{$pk} !== $id)
{
$multilanguageAssociations[$queryKey][$tag] = $item;
}
}
}
}
return $multilanguageAssociations[$queryKey];
}
}