CUserCounter::DeleteByCode

static function DeleteByCode($code)
{
	global $DB, $CACHE_MANAGER;

	if ($code == '')
	{
		return false;
	}

	$pullMessage = Array();
	$bPullEnabled = false;

	$connection = BitrixMainApplication::getConnection();

	$isLiveFeed = (
		mb_strpos($code, self::LIVEFEED_CODE) === 0
		&& $code !== self::LIVEFEED_CODE
	);

	if ($isLiveFeed)
	{
		$DB->Query(
			"DELETE FROM b_user_counter WHERE CODE = '".$code."'",
			false,
			"FILE: " . __FILE__ . "
 LINE: " . __LINE__
		);

		self::$counters = [];
		$CACHE_MANAGER->CleanDir("user_counter");

		if (self::$isLiveFeedJobOn === false && self::CheckLiveMode())
		{
			$application = BitrixMainApplication::getInstance();
			$application && $application->addBackgroundJob([__CLASS__, 'sendLiveFeedPull']);

			self::$isLiveFeedJobOn = true;
		}

		return true;
	}

	if (
		self::CheckLiveMode()
		&& $connection->lock('pull')
	)
	{
		$bPullEnabled = true;

		$arSites = [];
		$by = '';
		$order = '';
		$res = CSite::GetList($by, $order, array("ACTIVE" => "Y"));
		while($row = $res->Fetch())
		{
			$arSites[] = $row['ID'];
		}

		$helper = $connection->getSqlHelper();
		$strSQL = "
			SELECT uc.USER_ID as CHANNEL_ID, uc.USER_ID, uc.SITE_ID, uc.CODE, uc.CNT
			FROM b_user_counter uc
			INNER JOIN b_user u ON u.ID = uc.USER_ID AND (CASE WHEN u.EXTERNAL_AUTH_ID IN ('" . implode("', '", BitrixMainUserTable::getExternalUserTypes()) . "') THEN 'Y' ELSE 'N' END) = 'N' AND u.LAST_ACTIVITY_DATE > ".$helper->addSecondsToDateTime('(-3600)')."
			WHERE uc.CODE = '" . $code . "'";

		$res = $DB->Query($strSQL, false, "FILE: ".__FILE__."
 LINE: ".__LINE__);

		while($row = $res->Fetch())
		{
			self::addValueToPullMessage($row, $arSites, $pullMessage);
		}
	}

	$DB->Query("DELETE FROM b_user_counter WHERE CODE = '".$code."'", false, "FILE: ".__FILE__."
 LINE: ".__LINE__);

	self::$counters = [];
	$CACHE_MANAGER->CleanDir("user_counter");

	if ($bPullEnabled)
	{
		$connection->unlock('pull');
	}

	if (self::CheckLiveMode())
	{
		foreach ($pullMessage as $channelId => $arMessage)
		{
			BitrixPullEvent::add($channelId, Array(
				'module_id' => 'main',
				'command' => 'user_counter',
				'expiry' 	=> 3600,
				'params' => $arMessage,
			));
		}
	}

	return null;
}