Inheritance Mapping

A source or target class may inherit from another class.

When creating the mapping, AutoMapper can determine the correct mapping by using the inheritance information from the Symfony Serializer #[DiscriminatorMap] attribute.

#[DiscriminatorMap(typeProperty: 'type', mapping: [
    'cat' => Cat::class,
    'dog' => Dog::class,
    'fish' => Fish::class,
])]
abstract class Pet
{
    /** @var string */
    public $type;

    /** @var string */
    public $name;

    /** @var PetOwner */
    public $owner;
}

When mapping a Pet object, AutoMapper will automatically determine the correct class to instantiate based on the type property.

Learn more about the Symfony Serializer inheritance mapping

Note

If you don't use the Symfony Serializer we do not provide, yet, any way to determine the correct class to instantiate.