silverstripe-framework/tests/php/ORM/DataObjectTest/Company.php

<?php

namespace SilverStripe\ORM\Tests\DataObjectTest;

use SilverStripe\Dev\TestOnly;
use SilverStripe\ORM\DataObject;

class Company extends DataObject implements TestOnly
{
	private static $table_name = 'DataObjectTest_Company';

	private static $db = [
		'Name' => 'Varchar'
	];

	private static $has_one = [
		'CEO' => CEO::class,
		'PreviousCEO' => CEO::class,
		'Owner' => DataObject::class // polymorphic
	];

	private static $has_many = array(
		'CurrentStaff' => 'SilverStripe\\ORM\\Tests\\DataObjectTest\\Staff.CurrentCompany',
		'PreviousStaff' => 'SilverStripe\\ORM\\Tests\\DataObjectTest\\Staff.PreviousCompany'
	);
}