Declare nativeType of parent property explicitly as workaround for bug in symfony TypeInfo

Symfony/type-info returns an invalid property type for the parent property based on the @phpstan-var static phpdoc in the parent. It returns some App\Entity\Base\AttachmentType which does not exists.
Symfony issue: https://github.com/symfony/symfony/issues/62922

src/Entity/Attachments/AttachmentType.php

@@ -47,6 +47,8 @@ use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -93,7 +95,7 @@ class AttachmentType extends AbstractStructuralDBElement
     #[ORM\ManyToOne(targetEntity: AttachmentType::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['attachment_type:read', 'attachment_type:write'])]
-    #[ApiProperty(readableLink: true, writableLink: false)]
+    #[ApiProperty(readableLink: true, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     /**

src/Entity/Parts/Category.php

@@ -50,6 +50,8 @@ use App\Entity\Parameters\CategoryParameter;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -98,7 +100,7 @@ class Category extends AbstractPartsContainingDBElement
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['category:read', 'category:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     #[Groups(['category:read', 'category:write'])]

src/Entity/Parts/Footprint.php

@@ -49,6 +49,8 @@ use App\Entity\Parameters\FootprintParameter;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -93,7 +95,7 @@ class Footprint extends AbstractPartsContainingDBElement
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['footprint:read', 'footprint:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     #[ORM\OneToMany(mappedBy: 'parent', targetEntity: self::class)]

src/Entity/Parts/Manufacturer.php

@@ -48,6 +48,8 @@ use App\Entity\Parameters\ManufacturerParameter;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -92,7 +94,7 @@ class Manufacturer extends AbstractCompany
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['manufacturer:read', 'manufacturer:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     #[ORM\OneToMany(mappedBy: 'parent', targetEntity: self::class)]

src/Entity/Parts/MeasurementUnit.php

@@ -50,6 +50,8 @@ use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 use Symfony\Component\Validator\Constraints\Length;
 
@@ -130,7 +132,7 @@ class MeasurementUnit extends AbstractPartsContainingDBElement
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['measurement_unit:read', 'measurement_unit:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     /**

src/Entity/Parts/PartCustomState.php

@@ -46,6 +46,8 @@ use Doctrine\Common\Collections\Collection;
 use Doctrine\Common\Collections\Criteria;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -87,7 +89,7 @@ class PartCustomState extends AbstractPartsContainingDBElement
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['part_custom_state:read', 'part_custom_state:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     /**

src/Entity/Parts/StorageLocation.php

@@ -50,6 +50,8 @@ use App\Entity\UserSystem\User;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -97,7 +99,7 @@ class StorageLocation extends AbstractPartsContainingDBElement
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['location:read', 'location:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     #[Groups(['location:read', 'location:write'])]

src/Entity/Parts/Supplier.php

@@ -53,6 +53,8 @@ use Brick\Math\BigDecimal;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -99,7 +101,7 @@ class Supplier extends AbstractCompany
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['supplier:read', 'supplier:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     /**

src/Entity/PriceInformations/Currency.php

@@ -52,6 +52,8 @@ use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 
 /**
@@ -125,7 +127,7 @@ class Currency extends AbstractStructuralDBElement
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['currency:read', 'currency:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     /**

src/Entity/ProjectSystem/Project.php

@@ -49,6 +49,8 @@ use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use InvalidArgumentException;
 use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\TypeInfo\Type\NullableType;
+use Symfony\Component\TypeInfo\Type\ObjectType;
 use Symfony\Component\Validator\Constraints as Assert;
 use Symfony\Component\Validator\Context\ExecutionContextInterface;
 
@@ -95,7 +97,7 @@ class Project extends AbstractStructuralDBElement
     #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     #[ORM\JoinColumn(name: 'parent_id')]
     #[Groups(['project:read', 'project:write'])]
-    #[ApiProperty(readableLink: false, writableLink: false)]
+    #[ApiProperty(readableLink: false, writableLink: false, nativeType: new NullableType(new ObjectType(self::class)))]
     protected ?AbstractStructuralDBElement $parent = null;
 
     #[Groups(['project:read', 'project:write'])]