Permissions::createWithUserId

static function createWithUserId($userId)
{
	if(isset(self::$instances[$userId]))
		return self::$instances[$userId];

	$instance = new self;
	$instance->setUserId($userId);
	$instance->permissions = self::getNormalizedPermissions(RoleManager::getUserPermissions($userId));

	self::$instances[$userId] = $instance;
	return $instance;
}