Livefeed::changeFollowAction

public function changeFollowAction($logId, $value): ?array
{
	$result = [
		'success' => false
	];

	$logId = (int)$logId;
	if ($logId <= 0)
	{
		return $result;
	}

	$logId = (int)$logId;
	if ($logId <= 0)
	{
		$this->addError(new Error('No Log Id', 'SONET_CONTROLLER_LIVEFEED_NO_LOG_ID'));
		return null;
	}

	if (!Loader::includeModule('socialnetwork'))
	{
		$this->addError(new Error('Cannot include Socialnetwork module', 'SONET_CONTROLLER_LIVEFEED_NO_SOCIALNETWORK_MODULE'));
		return null;
	}

	$currentUserId = $this->getCurrentUser()->getId();
	$result['success'] = (
		$value === 'Y'
			? ComponentHelper::userLogSubscribe([
				'logId' => $logId,
				'userId' => $currentUserId,
				'typeList' => [ 'FOLLOW', 'COUNTER_COMMENT_PUSH' ]
			])
			: CSocNetLogFollow::set($currentUserId, 'L' . $logId, 'N')
	);

	return $result;
}