[VarExporter][DoctrineBundle] Accessing unknown properties on lazy ghost objects generates notices instead exceptions #48970
Description
Symfony version(s) affected
6.2.4
Description
Initially this bug looked like an issue with EasyAdmin Bundle, as it is triggered by its code. The simplest way to do it is to add a field which doesn't exist on an entity, e.g.:
yield TextField::new('type.thresholds_matches', 'Thresholds')
->setVirtual(true)
->setTemplatePath('admin/field/measurement_threshold.html.twig');
When enable_lazy_ghost_objects is disabled this works correctly and simply renders an empty field/custom template. However, the issue isn't actually in EAB but in LazyGhostTrait breaking the PropertyAccessorInterface promise:
->getValue() should produce an exception when a given property doesn't exist, which EAB relies on: https://github.com/EasyCorp/EasyAdminBundle/blob/4db1860871809ca0be610ba5dab9be26ba165351/src/Field/Configurator/CommonPreConfigurator.php#L49-L53
How to reproduce
PoC reproducer, pick your own entity of course. In my case the type field is configured as:
#[ORM\ManyToOne]
#[ORM\JoinColumn(nullable: false)]
private ?MeasurementType $type = null;The test code I used:
<php declare(strict_types=1);
#[AsCommand(name: 'app:sandbox')]
class SandboxCommand extends Command
{
public function __construct(private ManagerRegistry $doctrine, private PropertyAccessorInterface $propertyAccessor)
{
parent::__construct();
}
protected function execute(InputInterface $input, OutputInterface $output): int
{
$repo = $this->doctrine->getRepository(InanimateObjectMeasurement::class);
$ent = $repo->findOneBy([]);
dump($ent);
dump($this->propertyAccessor->getValue($ent, 'value'));
dump($this->propertyAccessor->getValue($ent, 'type.thresholds_matches'));
return 0;
}With enable_lazy_ghost_objects=false:
% bin/console app:sandbox -v
"183/88"
In PropertyAccessor.php line 453:
[Symfony\Component\PropertyAccess\Exception\NoSuchPropertyException]
Can't get a way to read the property "thresholds_matches" in class "Proxies\__CG__\App\Entity\Measurement\MeasurementType".
With enable_lazy_ghost_objects=true:
% bin/console app:sandbox -v
"183/88"
In LazyGhostTrait.php line 191:
[ErrorException]
User Notice: Undefined property: Proxies\__CG__\App\Entity\Measurement\MeasurementType::$thresholds_matches in /app/vendor/symfony/property-access/PropertyAccessor.php on line 428
Possible Solution
No response
Additional Context
No response