find() doesn't Hydrate object with Single Table Inheritance (SINGLE_TABLE) child object #6414

New Issue

admin · 2026-01-22T15:32:50+01:00

admin commented

2026-01-22 15:32:50 +01:00

Originally created by @yosvield on GitHub (Feb 27, 2020).

Bug Report

Q	A
BC Break	yes/no
Version	2.7.1

Summary

When the object is searched, the child object fields are in null

How to reproduce

i have relationship

/**
 * @ORM\Table(name="comun.person")
 * @ORM\InheritanceType("SINGLE_TABLE")
 * @ORM\DiscriminatorColumn(name="type",type="bigint")
 * @ORM\DiscriminatorMap({"1" = "PersonN", "2" = "PersonJ"})
 */
abstract class Person
{..}

children class

/**
 * @ORM\Table(name="comun.person")
 */
class PersonN extends Person
{...}

When the object is searched, the children class fields are in null

$person=$this->getDoctrine()
            ->getRepository(Person::class)
            ->find(22737);

Expected behavior
find child object

Originally created by @yosvield on GitHub (Feb 27, 2020). ### Bug Report | Q | A |------------ | ------ | BC Break | yes/no | Version | 2.7.1 #### Summary When the object is searched, the child object fields are in null #### How to reproduce i have relationship ```php /** * @ORM\Table(name="comun.person") * @ORM\InheritanceType("SINGLE_TABLE") * @ORM\DiscriminatorColumn(name="type",type="bigint") * @ORM\DiscriminatorMap({"1" = "PersonN", "2" = "PersonJ"}) */ abstract class Person {..} ``` children class ```php /** * @ORM\Table(name="comun.person") */ class PersonN extends Person {...} ``` When the object is searched, the children class fields are in null ```php $person=$this->getDoctrine() ->getRepository(Person::class) ->find(22737); ``` Expected behavior find child object

admin closed this issue

2026-01-22 15:32:51 +01:00

admin commented

2026-01-22 15:32:51 +01:00

@yosvield commented on GitHub (Feb 28, 2020):

I already solved the problem, in the mapping the data type of the discriminatorColumn had it as bigint and in the SimpleObjectHydrator.php class when compared with the discriminatorValue the data type is different. if (isset($cacheKeyInfo['discriminatorValues']) && ! in_array($discrColumnValue, $cacheKeyInfo['discriminatorValues'], true)) {

Fix

/**
* @Orm\Table(name="comun.person")
* @Orm\InheritanceType("SINGLE_TABLE")
* @Orm\DiscriminatorColumn(name="type",type="string")
* @Orm\DiscriminatorMap({"1" = "PersonN", "2" = "PersonJ"})
*/
abstract class Person
{..}

@yosvield commented on GitHub (Feb 28, 2020): I already solved the problem, in the mapping the data type of the discriminatorColumn had it as bigint and in the SimpleObjectHydrator.php class when compared with the discriminatorValue the data type is different. ` if (isset($cacheKeyInfo['discriminatorValues']) && ! in_array($discrColumnValue, $cacheKeyInfo['discriminatorValues'], true)) {` Fix > ``` /** * @Orm\Table(name="comun.person") * @Orm\InheritanceType("SINGLE_TABLE") * @Orm\DiscriminatorColumn(name="type",type="string") * @Orm\DiscriminatorMap({"1" = "PersonN", "2" = "PersonJ"}) */ abstract class Person {..} ```

admin commented

2026-01-22 15:32:51 +01:00

@beberlei commented on GitHub (Feb 29, 2020):

@yosvield the problem is really that bigints must be treated as strings, so you can keep the mapping, but your code must be:

$person = $this->getDoctrine()
            ->getRepository(Person::class)
            ->find("22737");

That can be a bit confusing at times

@beberlei commented on GitHub (Feb 29, 2020): @yosvield the problem is really that bigints must be treated as strings, so you can keep the mapping, but your code must be: ``` $person = $this->getDoctrine() ->getRepository(Person::class) ->find("22737"); ``` That can be a bit confusing at times

admin commented

2026-01-22 15:32:52 +01:00

@Russellmd commented on GitHub (Mar 2, 2020):

@beberlei is it mandatory to have @DiscriminatorColumn as string type? I found similar issue today, after upgrade (Symfony + Doctrine).

In my case I use Class Table Inheritance ( InheritanceType("JOINED") ), DiscriminatorColumn of type integer. The issue is that my object's fields from joined table are not initialized. Only if I change type for DiscriminatorColumn to string it works as expected.

@Russellmd commented on GitHub (Mar 2, 2020): @beberlei is it mandatory to have @DiscriminatorColumn as string type? I found similar issue today, after upgrade (Symfony + Doctrine). In my case I use Class Table Inheritance ( InheritanceType("JOINED") ), DiscriminatorColumn of type integer. The issue is that my object's fields from joined table are not initialized. Only if I change type for DiscriminatorColumn to string it works as expected.

admin commented

2026-01-22 15:32:52 +01:00

@beberlei commented on GitHub (Mar 2, 2020):

@Russellmd i don't know to be honest

@beberlei commented on GitHub (Mar 2, 2020): @Russellmd i don't know to be honest

admin referenced this issue

2026-01-22 16:06:02 +01:00

[PR #6414] onFlush and postFlush Entity Listeners #9974

admin referenced this issue

2026-01-22 16:07:18 +01:00

[PR #7203] onFlush and postFlush Entity Listeners #10370

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