FolderNew::execute

public function execute(array &$result, ?int $siteId = null): bool
{
	Rights::setGlobalOff();
	$finished = true;

	$globalFilter = [
		'=FOLDER' => 'Y',
		//'=DELETED' => ['Y', 'N'],
		//'=SITE.DELETED' => ['Y', 'N']
	];

	if ($siteId)
	{
		$globalFilter['SITE_ID'] = $siteId;
	}

	// gets common quantity
	$res = LandingTable::getList([
		'select' => [
			new BitrixMainEntityExpressionField(
				'CNT', 'COUNT(*)'
			)
		],
		'filter' => $globalFilter
	]);
	if ($row = $res->fetch())
	{
		$result['count'] = $row['CNT'];
	}

	// gets group for update
	$res = LandingTable::getList([
		'select' => [
			'ID', 'TITLE', 'CODE', 'ACTIVE', 'DELETED', 'SITE_ID'
		],
		'filter' => $globalFilter,
		'order' => [
			'ID' => 'ASC'
		]
	]);
	while ($page = $res->fetch())
	{
		$folderId = null;
		// create new folder and update folder to page
		$resFolder = Folder::add([
			'SITE_ID' => $page['SITE_ID'],
			'TITLE' => $page['TITLE'],
			'CODE' => $page['CODE'],
			'ACTIVE' => $page['ACTIVE'],
			'DELETED' => $page['DELETED']
		]);
		if ($resFolder->isSuccess())
		{
			$folderId = $resFolder->getId();
		}
		else
		{
			foreach ($resFolder->getErrors() as $error)
			{
				if ($error->getCode() === 'FOLDER_IS_NOT_UNIQUE')
				{
					$resFolder = Folder::getList([
						'select' => [
							'ID'
						],
						'filter' => [
							'SITE_ID' => $page['SITE_ID'],
							'PARENT_ID' => null,
							'=CODE' => $page['CODE']
						]
					]);
					if ($rowFolder = $resFolder->fetch())
					{
						$folderId = $rowFolder['ID'];
						break;
					}
				}
			}
		}

		if ($folderId)
		{
			Folder::update($folderId, [
				'INDEX_ID' => $page['ID']
			]);
			LandingTable::update($page['ID'], [
				'FOLDER' => 'N',
				'FOLDER_ID' => $folderId
			]);
			Debug::log('FU:LandingTable::update', var_export([
				'ID' => $page['ID'],
				'FOLDER' => 'N',
				'FOLDER_ID' => $folderId
			], true));
			// fetch old folder's pages and move it to the new folder
			$resPage = LandingTable::getList([
				'select' => [
					'ID', 'FOLDER_ID'
				],
				'filter' => [
					'FOLDER_ID' => $page['ID'],
					//'=DELETED' => ['Y', 'N'],
					//'=SITE.DELETED' => ['Y', 'N']
				]
			]);
			while ($rowPage = $resPage->fetch())
			{
				LandingTable::update($rowPage['ID'], [
					'FOLDER_ID' => $folderId
				]);
				Debug::log('FU:LandingTable::update', var_export([
					'ID' => $rowPage['ID'],
					'FOLDER_ID_OLD' => $rowPage['FOLDER_ID'],
					'FOLDER_ID' => $folderId
				], true));
			}
		}

		$finished = false;
	}

	if ($finished && !$siteId)
	{
		Manager::setOption('landing_new', 'Y');
	}

	Rights::setGlobalOn();

	return !$finished;
}