<?php namespace SilverStripe\ORM\Tests\DataQueryTest; use SilverStripe\Dev\TestOnly; use SilverStripe\ORM\DataObject; class ObjectA extends DataObject implements TestOnly { private static $table_name = 'DataQueryTest_A'; private static $db = [ 'Name' => 'Varchar', ]; private static $has_one = [ 'TestC' => ObjectC::class, ]; }