CAllPullWatch::Extend

static function Extend($userId, $tags)
{
	global $DB, $CACHE_MANAGER;

	if (intval($userId) == 0)
	{
		return false;
	}

	if (is_array($tags))
	{
		$isMulti = true;
		$searchTag = '';
		if (empty($tags))
		{
			return false;
		}
	}
	else
	{
		$isMulti = false;
		$searchTag = trim($tags);
		if ($searchTag == '')
		{
			return false;
		}
		else
		{
			$tags = Array($searchTag);
		}
	}

	$result = Array();
	foreach ($tags as $id => $tag)
	{
		$result[$tag] = false;
		$tags[$id] = $DB->ForSQL($tag);
	}

	$updateIds = Array();
	$strSql = "SELECT ID, TAG FROM b_pull_watch WHERE USER_ID = ".intval($userId)." AND TAG IN ('".implode("', '", $tags)."')";
	$dbRes = $DB->Query($strSql, false, "File: ".__FILE__."
Line: ".__LINE__);
	while ($arRes = $dbRes->Fetch())
	{
		$updateIds[] = $arRes['ID'];
		$result[$arRes['TAG']] = true;
	}

	if ($updateIds)
	{
		$DB->Query("UPDATE b_pull_watch SET DATE_CREATE = ".$DB->CurrentTimeFunction()." WHERE ID IN (".implode(', ', $updateIds).")");
		$CACHE_MANAGER->Clean("b_pw_".$userId, "b_pull_watch");
	}

	return $isMulti? $result: $result[$searchTag];
}