Workgroup::getRelation

static function getRelation(array $filter = []): BitrixSocialnetworkEO_UserToGroup
{
	$res = UserToGroupTable::getList([
		'filter' => $filter,
		'select' => [ 'ID', 'USER_ID', 'GROUP_ID', 'ROLE', 'INITIATED_BY_TYPE', 'INITIATED_BY_USER_ID', 'AUTO_MEMBER' ]
	]);

	if (!$result = $res->fetchObject())
	{
		throw new ObjectNotFoundException(Loc::getMessage('SOCIALNETWORK_HELPER_WORKGROUP_ERROR_RELATION_NOT_FOUND'));
	}

	return $result;
}