demos.php

<?php
namespace Bitrix\Landing;
 
class Demos extends \Bitrix\Landing\Internals\BaseTable
{
    const TPL_TYPE_SITE = 'S';
 
    const TPL_TYPE_PAGE = 'P';
 
    public static $internalClass = 'DemosTable';
 
    public static function deleteByAppCode($code)
    {
        $demos = [];
 
        // delete blocks from repo
        $res = self::getList([
            'select' => [
                'ID', 'APP_CODE', 'XML_ID'
            ],
            'filter' => [
                '=APP_CODE' => $code
            ]
        ]);
        while ($row = $res->fetch())
        {
            $demos[$row['APP_CODE'] . '.' . $row['XML_ID']] = $row;
            self::delete($row['ID']);
        }
 
        // and pages, which created with this templates
        if ($demos)
        {
            $res = Landing::getList([
                'select' => [
                    'ID'
                ],
                'filter' => [
                    '=TPL_CODE' => array_keys($demos)
                ]
            ]);
            while ($row = $res->fetch())
            {
                Landing::delete($row['ID'], true);
            }
        }
 
        unset($demos, $row, $res);
    }
}