Subclasses of subclasses don't hydrate #5877

New Issue

admin · 2026-01-22T15:20:57+01:00

admin commented

2026-01-22 15:20:57 +01:00

Originally created by @technetium on GitHub (Feb 8, 2018).

When I try to get all my entities of a subclass. The subclassed entities of those entities are null.

To reproduce:

Classes definitions:

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity()
 * @ORM\InheritanceType("JOINED")
 * @ORM\DiscriminatorColumn(name="customerDiscriminator",type="string")
 */
class Level1
{
    /* class properties and methods */
}

/**
 * @ORM\Entity()
 */
class Level2 extends Level1
{
    /* class properties and methods */
}

/**
 * @ORM\Entity()
 */
class Level3 extends Level2
{
    /* class properties and methods */
}

Expected result:

$this->getEntityManager(Level2:class)->getRepository(Level2:class)->findAll();
Should return an array of all Level2 and Level3 objects

Actual result:
Returns an array if all Level2 objects, and null records for all Level3 objects

Solution:
Check in Doctrine/ORM/Internal/Hydration/AbstractHydrator->gatherRowData() not only if the discriminator value in the database is not equal to the value of the discriminator of the class, but also not equal to the values of the subclasses. See my pull request #7051
.

I did not include any test with it. Can someone help me to create tests for this?

Originally created by @technetium on GitHub (Feb 8, 2018). When I try to get all my entities of a subclass. The subclassed entities of those entities are null. To reproduce: Classes definitions: ``` use Doctrine\ORM\Mapping as ORM; /** * @ORM\Entity() * @ORM\InheritanceType("JOINED") * @ORM\DiscriminatorColumn(name="customerDiscriminator",type="string") */ class Level1 { /* class properties and methods */ } /** * @ORM\Entity() */ class Level2 extends Level1 { /* class properties and methods */ } /** * @ORM\Entity() */ class Level3 extends Level2 { /* class properties and methods */ } ``` Expected result: `$this->getEntityManager(Level2:class)->getRepository(Level2:class)->findAll();` Should return an array of all Level2 and Level3 objects Actual result: Returns an array if all Level2 objects, and null records for all Level3 objects Solution: Check in Doctrine/ORM/Internal/Hydration/AbstractHydrator->gatherRowData() not only if the discriminator value in the database is not equal to the value of the discriminator of the class, but also not equal to the values of the subclasses. See my pull request #7051 . I did not include any test with it. Can someone help me to create tests for this?

admin added the Bug Duplicate labels 2026-01-22 15:20:57 +01:00

admin closed this issue

2026-01-22 15:20:58 +01:00

admin commented

2026-01-22 15:21:01 +01:00

@holtkamp commented on GitHub (Feb 8, 2018):

Might be related to https://github.com/doctrine/doctrine2/issues/6937, which got a test case included

@holtkamp commented on GitHub (Feb 8, 2018): Might be related to https://github.com/doctrine/doctrine2/issues/6937, which got a test case included

admin commented

2026-01-22 15:21:01 +01:00

@beberlei commented on GitHub (Dec 7, 2020):

Fixed in https://github.com/doctrine/orm/pull/6988