Attributed entities

Shopware 6 (English) Programming (EN)
1

Hey, do I have to create an collection or something like this for attributed entities when I create a relation to a core entity?
I have a custom entity with a OneToOne relation to the product but unfortunately I can’t find it with .addAssociation(‚accessories‘)

Here is my entity:

#[EntityAttribute('accessories')]
class AccessoriesEntity extends Entity{


    #[PrimaryKey]
    #[Field(type: FieldType::UUID, api: true)]
    public string $id;

    #[ForeignKey(entity: 'product', api: true)]
    public ?string $productId = null;

    #[OneToOne(entity: 'product', api: true, column:"product")]
    public ?ProductEntity $product = null;

    #[ReferenceVersion(entity: 'product')]
    public ?ProductEntity $ref = null;

}