starter-lumen/app/Http/Business/DnsDomainsBusiness.php

<?php

namespace App\Http\Business;

use Luticate\Utils\LuBusiness;
use App\Http\DataAccess\DnsDomainsDataAccess;
use App\Http\DBO\DnsDomainsDbo;

class DnsDomainsBusiness extends LuBusiness {
    protected static function getDataAccess()
    {
        return new DnsDomainsDataAccess();
    }

    public static function checkDomain(DnsDomainsDbo $domain)
    {
        if (is_null($domain->getName()) || !is_string($domain->getName())) {
            self::badInput("Name must be an string");
        }
        if (strtoupper($domain->getType()) != "MASTER" && strtoupper($domain->getType()) != "SLAVE") {
            self::badInput("Type must be SLAVE or MASTER");
        }
        $domain->setType(strtoupper($domain->getType()));
        $domain->setLastCheck(null);
        $domain->setNotifiedSerial(null);
        $domain->setAccount(null);
    }

    public static function add(DnsDomainsDbo $domain)
    {
        self::checkDomain($domain);
        return DnsDomainsDataAccess::addId($domain);
    }
}