animethemes-server/app/GraphQL/Definition/Relations/HasOneRelation.php

<?php

declare(strict_types=1);

namespace App\GraphQL\Definition\Relations;

use App\Enums\GraphQL\RelationType;
use GraphQL\Type\Definition\Type;

/**
 * Class HasOneRelation.
 */
class HasOneRelation extends Relation
{
    /**
     * The type returned by the field.
     *
     * @return Type
     */
    protected function type(): Type
    {
        if (!$this->nullable) {
            return Type::nonNull($this->type);
        }

        return $this->type;
    }

    /**
     * The Relation type.
     *
     * @return RelationType
     */
    protected function relation(): RelationType
    {
        return RelationType::HAS_ONE;
    }
}