<?php namespace SilverStripe\ORM\Tests\DataObjectDuplicationTest; use SilverStripe\Dev\TestOnly; use SilverStripe\ORM\DataObject; class Class1 extends DataObject implements TestOnly { private static $table_name = 'DataObjectDuplicateTest_Class1'; private static $db = array( 'text' => 'Varchar' ); private static $has_many = array( 'twos' => Class2::class ); private static $many_many = array( 'threes' => Class3::class ); }