Attachments to Doctrine Jira Issue DDC-599 - https://github.com/doctrine/doctrine2/issues/5105

10628_DDC599Test.php

<?php
namespace Doctrine\Tests\ORM\Functional\Ticket;

require_once __DIR__ . '/../../../TestInit.php';

class DDC599Test extends \Doctrine\Tests\OrmFunctionalTestCase
{
    protected function setUp()
    {
        parent::setUp();
        try {
            $this->_schemaTool->createSchema(array(
                $this->_em->getClassMetadata(__NAMESPACE__ . '\DDC599Subitem'),
                $this->_em->getClassMetadata(__NAMESPACE__ . '\DDC599Item'),
                $this->_em->getClassMetadata(__NAMESPACE__ . '\DDC599Child'),
            ));
        } catch(\Exception $e) {
            
        }
    }

    public function testCascadeRemoveOnInheritanceHierachy()
    {
        $item = new DDC599Subitem;
        $item->elem = "foo";
        $child = new DDC599Child;
        $child->parent = $item;
        $item->getChildren()->add($child);
        $this->_em->persist($item);
        $this->_em->persist($child);
        $this->_em->flush();
        $this->_em->clear();

        $item = $this->_em->find(__NAMESPACE__ . '\DDC599Item', $item->id);

        $this->_em->remove($item);
        $this->_em->flush(); // Crashes
    }

    public function testCascadeRemoveOnChildren()
    {
        $class = $this->_em->getClassMetadata(__NAMESPACE__ . '\DDC599Subitem');

        $this->assertArrayHasKey('children', $class->associationMappings);
        $this->assertTrue($class->associationMappings['children']->isCascadeRemove);
    }
}

/**
 * @Entity
 * @InheritanceType("SINGLE_TABLE")
 * @DiscriminatorColumn(name="type", type="integer")
 * @DiscriminatorMap({"0" = "DDC599Item", "1" = "DDC599Subitem"})
 */
class DDC599Item
{
    /**
     * @Id
     * @Column(type="integer")
     * @GeneratedValue(strategy="AUTO")
     */
    public $id;

    /**
     * @OneToMany(targetEntity="DDC599Child", mappedBy="parent", cascade={"remove"})
     */
    protected $children;

    public function __construct()
    {
        $this->children = new \Doctrine\Common\Collections\ArrayCollection;
    }

    public function getChildren()
    {
        return $this->children;
    }
}

/**
 * @Entity
 */
class DDC599Subitem extends DDC599Item
{
    /**
     * @Column(type="string")
     */
    public $elem;
}

/**
 * @Entity
 */
class DDC599Child
{
    /**
     * @Id
     * @Column(type="integer")
     * @GeneratedValue(strategy="AUTO")
     */
    public $id;

    /**
     * @ManyToOne(targetEntity="DDC599Item", inversedBy="children")
     * @JoinColumn(name="parentId", referencedColumnName="id")
     */
    public $parent;
}