UserFieldType::update

static function update($param, $n, CRestServer $server)
{
	static::checkPermission($server);

	$param = array_change_key_case($param, CASE_UPPER);

	$userTypeId = toLower($param['USER_TYPE_ID']);

	if($userTypeId == '')
	{
		throw new ArgumentNullException("USER_TYPE_ID");
	}

	$updateFields = array();
	if(!empty($param['HANDLER']))
	{
		$appInfo = AppTable::getByClientId($server->getClientId());;
		HandlerHelper::checkCallback($param['HANDLER'], $appInfo);

		$updateFields['PLACEMENT_HANDLER'] = $param['HANDLER'];
	}

	if (array_key_exists('OPTIONS', $param))
	{
		$updateFields['OPTIONS'] = static::prepareOption($param['OPTIONS']);
	}

	$updateFields = array_merge(
		$updateFields,
		Lang::fillCompatibility(
			$param,
			[
				'TITLE',
				'DESCRIPTION',
			],
			[
				'TITLE' => $updateFields['TITLE']
			]
		)
	);
	$langAll = [];
	if ($updateFields['LANG_ALL'])
	{
		$langAll = $updateFields['LANG_ALL'];
	}
	unset($updateFields['LANG_ALL']);

	if(count($updateFields) > 0)
	{
		$dbRes = PlacementTable::getList(array(
			'filter' => array(
				'=REST_APP.CLIENT_ID' => $server->getClientId(),
				'=ADDITIONAL' => $userTypeId
			),
			'select' => array('ID', 'APP_ID', 'ADDITIONAL')
		));
		$placementInfo = $dbRes->fetch();
		if($placementInfo)
		{
			$updateResult = PlacementTable::update($placementInfo['ID'], $updateFields);
			if($updateResult->isSuccess())
			{
				PlacementLangTable::deleteByPlacement($placementInfo['ID']);
				foreach ($langAll as $lang => $item)
				{
					$item['PLACEMENT_ID'] = $placementInfo['ID'];
					$item['LANGUAGE_ID'] = $lang;
					$res = PlacementLangTable::add($item);
					if (!$res->isSuccess())
					{
						throw new RestException(
							'Error: ' . implode(', ', $res->getErrorMessages()),
							RestException::ERROR_CORE
						);
					}
				}
				// rebind handler for failover reasons
				Callback::bind($placementInfo);
			}
			else
			{
				$errorMessage = $updateResult->getErrorMessages();
				throw new RestException(
					'Unable to update User Field Type: '.implode(', ', $errorMessage),
					RestException::ERROR_CORE
				);
			}
		}
		else
		{
			throw new RestException('User Field Type not found', RestException::ERROR_NOT_FOUND);
		}
	}
	else
	{
		throw new ArgumentNullException('HANDLER|TITLE|DESCRIPTION');
	}

	return true;
}