<?php namespace SilverStripe\ORM\Tests\CascadeDeleteTest; use SilverStripe\Dev\TestOnly; use SilverStripe\ORM\DataObject; class GrandChildObject extends DataObject implements TestOnly { private static $table_name = 'CascadeDeleteTest_GrandChildObject'; private static $db = [ 'Title' => 'Varchar', ]; private static $belongs_many_many = [ 'Parents' => ChildObject::class, ]; }