Group::getLastViewedProject

static function getLastViewedProject($userId): int
{
	$res = BitrixSocialnetworkWorkgroupViewTable::getList(array(
		'select' => array(
			'GROUP_ID'
		),
		'filter' => array(
			'USER_ID' => $userId,
			'=GROUP.ACTIVE' => 'Y',
			'=GROUP.CLOSED' => 'N',
		),
		'order' => array(
			'DATE_VIEW' => 'DESC'
		)
	));
	while ($row = $res->fetch())
	{
		if (self::canReadGroupTasks($userId, $row['GROUP_ID']))
		{
			$lastGroupId = $row['GROUP_ID'];
			break;
		}
	}
	if (!$lastGroupId)
	{
		// get by date activity
		$res = CSocNetUserToGroup::GetList(
			array(
				'GROUP_DATE_ACTIVITY' => 'DESC'
			),
			array(
				'USER_ID' => $userId,
				'!ROLE' => array(
					SONET_ROLES_BAN,
					SONET_ROLES_REQUEST
				),
				'USER_ACTIVE' => 'Y',
				'GROUP_ACTIVE' => 'Y'
			),
			false, false,
			array(
				'GROUP_ID'
			)
		);
		while ($row = $res->fetch())
		{
			if (self::canReadGroupTasks($userId, $row['GROUP_ID']))
			{
				$lastGroupId = $row['GROUP_ID'];
				break;
			}
		}
	}
	return (int) $lastGroupId;
}