CSocNetUserToGroup::Add

static function Add($arFields)
{
	global $DB, $CACHE_MANAGER;

	$arFields1 = Util::getEqualityFields($arFields);

	if (!self::CheckFields("ADD", $arFields))
	{
		return false;
	}

	$db_events = GetModuleEvents("socialnetwork", "OnBeforeSocNetUserToGroupAdd");
	while ($arEvent = $db_events->Fetch())
	{
		if (ExecuteModuleEventEx($arEvent, array(&$arFields)) === false)
		{
			return false;
		}
	}

	$arInsert = $DB->PrepareInsert("b_sonet_user2group", $arFields);
	$strUpdate = $DB->PrepareUpdate("b_sonet_user2group", $arFields);

	Util::processEqualityFieldsToInsert($arFields1, $arInsert);
	Util::processEqualityFieldsToUpdate($arFields1, $strUpdate);

	$ID = false;
	if ($arInsert[0] <> '')
	{
		$strSql =
			"INSERT INTO b_sonet_user2group(".$arInsert[0].") ".
			"VALUES(".$arInsert[1].") 
			ON DUPLICATE KEY UPDATE ".$strUpdate;

		$DB->Query($strSql, False, "File: ".__FILE__."
Line: ".__LINE__);

		$ID = (int)$DB->LastID();
	}

	if ($ID)
	{
		CSocNetGroup::SetStat($arFields["GROUP_ID"]);
		CSocNetSearch::OnUserRelationsChange($arFields["USER_ID"]);

		$events = GetModuleEvents("socialnetwork", "OnSocNetUserToGroupAdd");
		while ($arEvent = $events->Fetch())
		{
			ExecuteModuleEventEx($arEvent, array($ID, &$arFields));
		}

		EventServiceService::addEvent(EventServiceEventDictionary::EVENT_WORKGROUP_USER_ADD, [
			'GROUP_ID' => $arFields['GROUP_ID'],
			'USER_ID' => $arFields['USER_ID'],
			'ROLE' => $arFields['ROLE'],
		]);

		if (
			$arFields['INITIATED_BY_TYPE'] === SONET_INITIATED_BY_GROUP
			&& $arFields['SEND_MAIL'] !== 'N'
			&& !ModuleManager::isModuleInstalled('im')
		)
		{
			self::SendEvent($ID);
		}

		self::$roleCache[$arFields["USER_ID"]."_".$arFields["GROUP_ID"]] = array(
			"ROLE" => $arFields["ROLE"],
			"AUTO_MEMBER" => (isset($arFields["AUTO_MEMBER"]) ? $arFields["AUTO_MEMBER"] : "N")
		);

		if (defined("BX_COMP_MANAGED_CACHE"))
		{
			$CACHE_MANAGER->ClearByTag("sonet_user2group_G".$arFields["GROUP_ID"]);
			$CACHE_MANAGER->ClearByTag("sonet_user2group_U".$arFields["USER_ID"]);
			$CACHE_MANAGER->ClearByTag("sonet_user2group");
		}

		CounterCounterService::addEvent(CounterEventEventDictionary::EVENT_WORKGROUP_USER_ADD, [
			'GROUP_ID' => (int)$arFields['GROUP_ID'],
			'USER_ID' => (int)$arFields['USER_ID'],
			'ROLE' => $arFields['ROLE'],
			'INITIATED_BY_TYPE' => $arFields['INITIATED_BY_TYPE'],
			'RELATION_ID' => $ID,
		]);
	}

	return $ID;
}