class EntityReferenceArgument

class EntityReferenceArgument extends NumericArgument implements ContainerFactoryPluginInterface {
    public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityRepositoryInterface $entityRepository, EntityTypeManagerInterface $entityTypeManager) {
        parent::__construct($configuration, $plugin_id, $plugin_definition);
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
        return new static($configuration, $plugin_id, $plugin_definition, $container->get('entity.repository'), $container->get('entity_type.manager'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function titleQuery() {
        $titles = [];
        $entities = $this->entityTypeManager
            ->getStorage($this->definition['target_entity_type_id'])
            ->loadMultiple($this->value);
        foreach ($entities as $entity) {
            $titles[$entity->id()] = $this->entityRepository
                ->getTranslationFromContext($entity)
                ->label();
        }
        return $titles;
    }
    
    /**
     * {@inheritdoc}
     */
    public function summaryName($data) {
        $id = $data->{$this->name_alias};
        $entity = $id ? $this->entityTypeManager
            ->getStorage($this->definition['target_entity_type_id'])
            ->load($id) : NULL;
        if ($entity) {
            return $this->entityRepository
                ->getTranslationFromContext($entity)
                ->label();
        }
        if (($id === NULL || $id === '') && isset($this->definition['empty field name'])) {
            return $this->definition['empty field name'];
        }
        return $id;
    }

}