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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2013 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Helper;
\defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Access\Access;
use Joomla\CMS\Application\ApplicationHelper;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\LanguageHelper;
use Joomla\CMS\Language\Multilanguage;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Log\Log;
use Joomla\CMS\Object\CMSObject;
use Joomla\CMS\Plugin\PluginHelper;
use Joomla\CMS\Table\Table;
use Joomla\Registry\Registry;
/**
* Helper for standard content style extensions.
* This class mainly simplifies static helper methods often repeated in individual components
*
* @since 3.1
*/
class ContentHelper
{
/**
* Configure the Linkbar. Must be implemented by each extension.
*
* @param string $vName The name of the active view.
*
* @return void
*
* @since 3.1
*/
public static function addSubmenu($vName)
{
}
/**
* Adds Count relations for Category and Tag Managers
*
* @param \stdClass[] &$items The category or tag objects
* @param \stdClass $config Configuration object allowing to use a custom relations table
*
* @return \stdClass[]
*
* @since 3.9.1
*/
public static function countRelations(&$items, $config)
{
$db = Factory::getDbo();
// Allow custom state / condition values and custom column names to support custom components
$counter_names = isset($config->counter_names) ? $config->counter_names : array(
'-2' => 'count_trashed',
'0' => 'count_unpublished',
'1' => 'count_published',
'2' => 'count_archived',
);
// Index category objects by their ID
$records = array();
foreach ($items as $item)
{
$records[(int) $item->id] = $item;
}
// The relation query does not return a value for cases without relations of a particular state / condition, set zero as default
foreach ($items as $item)
{
foreach ($counter_names as $n)
{
$item->{$n} = 0;
}
}
// Table alias for related data table below will be 'c', and state / condition column is inside related data table
$related_tbl = '#__' . $config->related_tbl;
$state_col = 'c.' . $config->state_col;
// Supported cases
switch ($config->relation_type)
{
case 'tag_assigments':
$recid_col = 'ct.' . $config->group_col;
$query = $db->getQuery(true)
->from($db->quoteName('#__contentitem_tag_map', 'ct'))
->join(
'INNER',
$db->quoteName($related_tbl, 'c'),
$db->quoteName('ct.content_item_id') . ' = ' . $db->quoteName('c.id')
. ' AND ' . $db->quoteName('ct.type_alias') . ' = :extension'
)
->bind(':extension', $config->extension);
break;
case 'category_or_group':
$recid_col = 'c.' . $config->group_col;
$query = $db->getQuery(true)
->from($db->quoteName($related_tbl, 'c'));
break;
default:
return $items;
}
/**
* Get relation counts for all category objects with single query
* NOTE: 'state IN', allows counting specific states / conditions only, also prevents warnings with custom states / conditions, do not remove
*/
$query
->select(
[
$db->quoteName($recid_col, 'catid'),
$db->quoteName($state_col, 'state'),
'COUNT(*) AS ' . $db->quoteName('count'),
]
)
->whereIn($db->quoteName($recid_col), array_keys($records))
->whereIn($db->quoteName($state_col), array_keys($counter_names))
->group($db->quoteName([$recid_col, $state_col]));
$relationsAll = $db->setQuery($query)->loadObjectList();
// Loop through the DB data overwriting the above zeros with the found count
foreach ($relationsAll as $relation)
{
// Sanity check in case someone removes the state IN above ... and some views may start throwing warnings
if (isset($counter_names[$relation->state]))
{
$id = (int) $relation->catid;
$cn = $counter_names[$relation->state];
$records[$id]->{$cn} = $relation->count;
}
}
return $items;
}
/**
* Gets a list of the actions that can be performed.
*
* @param string $component The component name.
* @param string $section The access section name.
* @param integer $id The item ID.
*
* @return CMSObject
*
* @since 3.2
*/
public static function getActions($component = '', $section = '', $id = 0)
{
$assetName = $component;
if ($section && $id)
{
$assetName .= '.' . $section . '.' . (int) $id;
}
$result = new CMSObject;
$user = Factory::getUser();
$actions = Access::getActionsFromFile(
JPATH_ADMINISTRATOR . '/components/' . $component . '/access.xml', '/access/section[@name="component"]/'
);
if ($actions === false)
{
Log::add(
Text::sprintf('JLIB_ERROR_COMPONENTS_ACL_CONFIGURATION_FILE_MISSING_OR_IMPROPERLY_STRUCTURED', $component), Log::ERROR, 'jerror'
);
return $result;
}
foreach ($actions as $action)
{
$result->set($action->name, $user->authorise($action->name, $assetName));
}
return $result;
}
/**
* Gets the current language
*
* @param boolean $detectBrowser Flag indicating whether to use the browser language as a fallback.
*
* @return string The language string
*
* @since 3.1
* @note CmsHelper::getCurrentLanguage is the preferred method
*/
public static function getCurrentLanguage($detectBrowser = true)
{
$app = Factory::getApplication();
$langCode = null;
// Get the languagefilter parameters
if (Multilanguage::isEnabled())
{
$plugin = PluginHelper::getPlugin('system', 'languagefilter');
$pluginParams = new Registry($plugin->params);
if ((int) $pluginParams->get('lang_cookie', 1) === 1)
{
$langCode = $app->input->cookie->getString(ApplicationHelper::getHash('language'));
}
else
{
$langCode = $app->getSession()->get('plg_system_languagefilter.language');
}
}
// No cookie - let's try to detect browser language or use site default
if (!$langCode)
{
if ($detectBrowser)
{
$langCode = LanguageHelper::detectLanguage();
}
else
{
$langCode = ComponentHelper::getParams('com_languages')->get('site', 'en-GB');
}
}
return $langCode;
}
/**
* Gets the associated language ID
*
* @param string $langCode The language code to look up
*
* @return integer The language ID
*
* @since 3.1
* @note CmsHelper::getLanguage() is the preferred method.
*/
public static function getLanguageId($langCode)
{
$db = Factory::getDbo();
$query = $db->getQuery(true)
->select($db->quoteName('lang_id'))
->from($db->quoteName('#__languages'))
->where($db->quoteName('lang_code') . ' = :language')
->bind(':language', $langCode);
$db->setQuery($query);
return $db->loadResult();
}
/**
* Gets a row of data from a table
*
* @param Table $table Table instance for a row.
*
* @return array Associative array of all columns and values for a row in a table.
*
* @since 3.1
*/
public function getRowData(Table $table)
{
$data = new CMSHelper;
return $data->getRowData($table);
}
}