/**
* getAuthorisedCategories method.
*
* @return array
*/
public static function getAuthorised()
{
if (is_null(self::$authorised)) {
// Get database
$db = JFactory::getDbo();
// Get authorised view levels
$viewlevels = array_unique(JFactory::getUser()->getAuthorisedViewLevels());
// Get query
$query = $db->getQuery(true);
// Build query
$query->select($db->quoteName('id'))->from('#__k2_categories')->where($db->quoteName('state') . ' = 1')->where($db->quoteName('access') . ' IN (' . implode(',', $viewlevels) . ')');
// Set query
$db->setQuery($query);
// Load result
self::$authorised = $db->loadColumn();
}
return self::$authorised;
}
