Add update hook to make documents translatable.

modules/newsroom_connector_item/newsroom_connector_item.install

@@ -111,6 +111,17 @@ function newsroom_connector_item_update_9004(&$sandbox) {
   _newsroom_connector_item_install_field('field_newsroom_is_machine_trans');
 }
 
+/**
+ * Make documents field translatable.
+ */
+function newsroom_connector_item_update_9005(&$sandbox) {
+  $fields = \Drupal::service('entity_field.manager')->getFieldDefinitions('node', 'newsroom_item');
+  $field_config = $fields['field_newsroom_documents']->getConfig('newsroom_item');
+  $field_config
+    ->setTranslatable(TRUE)
+    ->save();
+}
+
 /**
  * Install field from module config files.
  *

modules/newsroom_connector_item/src/EventSubscriber/NewsroomItemMigrateSubscriber.php

@@ -0,0 +1,83 @@
+<?php
+
+namespace Drupal\newsroom_connector_item\EventSubscriber;
+
+use Drupal\entity_data\EntityData;
+use Drupal\migrate\Event\MigrateEvents;
+use Drupal\migrate\Event\MigratePostRowSaveEvent;
+use Drupal\newsroom_connector_item\Plugin\newsroom\NewsroomItemNewsroomProcessor;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * Handle newsroom item imports.
+ */
+class NewsroomItemMigrateSubscriber implements EventSubscriberInterface {
+
+  /**
+   * The event dispatcher.
+   *
+   * @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
+   */
+  protected $dispatcher;
+
+  /**
+   * EntityData service.
+   *
+   * @var \Drupal\entity_data\EntityData
+   */
+  protected $entityData;
+
+  /**
+   * EntityData service.
+   *
+   * @param \Symfony\Component\EventDispatcher\EventDispatcherInterface $dispatcher
+   *   The event dispatcher.
+   * @param \Drupal\entity_data\EntityData $entity_data
+   *   The entity data service.
+   */
+  public function __construct(EventDispatcherInterface $dispatcher, EntityData $entity_data) {
+    $this->dispatcher = $dispatcher;
+    $this->entityData = $entity_data;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    $events = [];
+    $events[MigrateEvents::POST_ROW_SAVE][] = ['updateDocuments'];
+    return $events;
+  }
+
+  /**
+   * Event callback to sync source and destination.
+   *
+   * @param \Drupal\migrate\Event\MigratePostRowSaveEvent $event
+   *   The migration import event.
+   */
+  public function updateDocuments(MigratePostRowSaveEvent $event) {
+    $migration_id = $event->getMigration()->id();
+    if (strpos($migration_id, 'newsroom_item_translations') !== FALSE || $migration_id == NewsroomItemNewsroomProcessor::MIGRATION_ITEM) {
+      $nid = $event->getDestinationIdValues()[0] ?? NULL;
+      if (empty($nid)) {
+        return;
+      }
+      $row = $event->getRow();
+      $related_documents_urls = $row->getSourceProperty('related_documents_url');
+      $related_documents_machine_translations = $row->getSourceProperty('related_documents_machine_translation');
+
+      if (!empty($related_documents_urls)) {
+        if (is_array($related_documents_urls)) {
+          foreach ($related_documents_urls as $key => $item) {
+            $this->entityData->set('newsroom_connector_item', $nid, $related_documents_urls[$key], 'node', $related_documents_machine_translations[$key] == 'True' ? 1 : 0);
+          }
+        }
+        else {
+          $this->entityData->set('newsroom_connector_item', $nid, $related_documents_urls, 'node', $related_documents_machine_translations == 'True' ? 1 : 0);
+        }
+      }
+    }
+  }
+
+}