Version 1
[yaffs-website] / web / core / modules / migrate_drupal / src / Plugin / migrate / source / EmptySource.php
diff --git a/web/core/modules/migrate_drupal/src/Plugin/migrate/source/EmptySource.php b/web/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\EntityManagerInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+
+
+/**
+ * Source returning an empty row with Drupal specific config dependencies.
+ *
+ * @MigrateSource(
+ *   id = "md_empty"
+ * )
+ */
+class EmptySource extends BaseEmptySource implements ContainerFactoryPluginInterface, DependentPluginInterface {
+
+  use DependencyTrait;
+
+  /**
+   * The entity manager.
+   *
+   * @var \Drupal\Core\Entity\EntityManagerInterface
+   */
+  protected $entityManager;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration, EntityManagerInterface $entity_manager) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition, $migration);
+    $this->entityManager = $entity_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,
+      $container->get('entity.manager')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function calculateDependencies() {
+    // The empty source plugin supports the entity_type constant.
+    if (isset($this->configuration['constants']['entity_type'])) {
+      $this->addDependency('module', $this->entityManager->getDefinition($this->configuration['constants']['entity_type'])->getProvider());
+    }
+    return $this->dependencies;
+  }
+
+}