<?php namespace SilverStripe\ORM\Tests\DataObjectTest; use SilverStripe\Dev\TestOnly; class SubTeam extends Team implements TestOnly { private static $table_name = 'DataObjectTest_SubTeam'; private static $db = array( 'SubclassDatabaseField' => 'Varchar' ); private static $has_one = array( "ParentTeam" => Team::class, ); private static $many_many = array( 'FormerPlayers' => Player::class ); private static $many_many_extraFields = array( 'FormerPlayers' => array( 'Position' => 'Varchar(100)' ) ); }