/**
* Public function that creates a single instance
*/
public static function getInstance()
{
if (!isset(self::$_instance)) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* Get container image
*
* @param resource $container
* @return string
*/
private function getContainerImage($container)
{
$result = '';
$group_manager = GalleryGroupManager::getInstance();
$membership_manager = GalleryGroupMembershipManager::getInstance();
$items = $membership_manager->getItems(array('group'), array('container' => $container->id), array('RAND()'));
if (count($items) > 0) {
$membership = $items[array_rand($items)];
$id = $membership->group;
$group = $group_manager->getSingleItem(array('id', 'thumbnail'), array('id' => $id));
if (is_object($group)) {
$result = $this->getGroupImage($group);
}
}
return $result;
}