ds-8.x-3.9/src/Plugin/Derivative/BundleField.php

<?php

namespace Drupal\ds\Plugin\Derivative;

use Drupal\Component\Plugin\Derivative\DeriverBase;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a derivative for bundle fields.
 */
class BundleField extends DeriverBase implements ContainerDeriverInterface {

  /**
   * Stores all entity row plugin information.
   *
   * @var array
   */
  protected $derivatives = [];

  /**
   * The base plugin ID that the derivative is for.
   *
   * @var string
   */
  protected $basePluginId;

  /**
   * The entity manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * Constructs a Bundlefield object.
   *
   * @param string $base_plugin_id
   *   The base plugin ID.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity manager.
   */
  public function __construct($base_plugin_id, EntityTypeManagerInterface $entity_type_manager) {
    $this->basePluginId = $base_plugin_id;
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, $base_plugin_id) {
    return new static(
      $base_plugin_id,
      $container->get('entity_type.manager')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function getDerivativeDefinitions($base_plugin_definition) {
    foreach ($this->entityTypeManager->getDefinitions() as $entity_type_id => $entity_type) {
      $base_table = $entity_type->getBaseTable();
      if ($entity_type->get('field_ui_base_route') && !empty($base_table)) {
        $this->derivatives[$entity_type_id] = $base_plugin_definition;
        $this->derivatives[$entity_type_id]['entity_type'] = $entity_type_id;
        $this->derivatives[$entity_type_id]['title'] = 'Bundle name';
      }
    }

    return $this->derivatives;
  }

}