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EmptySource.php in Drupal 10

File

core/modules/migrate_drupal/src/Plugin/migrate/source/EmptySource.php
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<?php

namespace Drupal\migrate_drupal\Plugin\migrate\source;

use Drupal\Component\Plugin\DependentPluginInterface;
use Drupal\Core\Entity\DependencyTrait;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\migrate\Plugin\MigrationInterface;
use Drupal\migrate\Plugin\migrate\source\EmptySource as BaseEmptySource;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;

/**
 * Source returning an empty row with Drupal specific config dependencies.
 *
 * For more information and available configuration keys, refer to the parent
 * classes.
 *
 * @see \Drupal\migrate\Plugin\migrate\source\EmptySource
 * @see \Drupal\migrate\Plugin\migrate\source\SourcePluginBase
 *
 * @MigrateSource(
 *   id = "md_empty",
 *   source_module = "system",
 * )
 */
class EmptySource extends BaseEmptySource implements ContainerFactoryPluginInterface, DependentPluginInterface {
  use DependencyTrait;

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

  /**
   * {@inheritdoc}
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration, EntityTypeManagerInterface $entity_type_manager) {
    parent::__construct($configuration, $plugin_id, $plugin_definition, $migration);
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration = NULL) {
    return new static($configuration, $plugin_id, $plugin_definition, $migration, $container
      ->get('entity_type.manager'));
  }

  /**
   * {@inheritdoc}
   */
  public function calculateDependencies() {

    // The empty source plugin supports the entity_type constant.
    if (isset($this->configuration['constants']['entity_type'])) {
      $this
        ->addDependency('module', $this->entityTypeManager
        ->getDefinition($this->configuration['constants']['entity_type'])
        ->getProvider());
    }
    return $this->dependencies;
  }

}

Classes

Namesort descending Description
EmptySource Source returning an empty row with Drupal specific config dependencies.