protected function MergeableEntityReferenceHandler::setValues in CMS Content Sync 8

Same name and namespace in other branches

1. 2.1.x src/Plugin/cms_content_sync/field_handler/MergeableEntityReferenceHandler.php \Drupal\cms_content_sync\Plugin\cms_content_sync\field_handler\MergeableEntityReferenceHandler::setValues()
2. 2.0.x src/Plugin/cms_content_sync/field_handler/MergeableEntityReferenceHandler.php \Drupal\cms_content_sync\Plugin\cms_content_sync\field_handler\MergeableEntityReferenceHandler::setValues()

Overrides EntityReferenceHandlerBase::setValues

File

src/Plugin/cms_content_sync/field_handler/MergeableEntityReferenceHandler.php, line 48

Class

MergeableEntityReferenceHandler

Providing a minimalistic implementation for any field type.

Namespace

Drupal\cms_content_sync\Plugin\cms_content_sync\field_handler

Code

protected function setValues(PullIntent $intent) {

  /**
   * @var \Drupal\Core\Entity\FieldableEntityInterface $entity
   */
  $entity = $intent
    ->getEntity();
  $entityTypeManager = \Drupal::entityTypeManager();

  // Since this is only used for paragraphs, there is only one entity type
  // existent.
  $reference_type = $this
    ->getReferencedEntityTypes()[0];
  $storage = $entityTypeManager
    ->getStorage($reference_type);
  $data = $intent
    ->getProperty($this->fieldName);
  $merge = !empty($this->settings['handler_settings']['merge_local_changes']);
  if (!$merge && $intent
    ->shouldMergeChanges()) {
    return false;
  }
  if (empty($data) && !$merge) {
    $entity
      ->set($this->fieldName, null);
    return true;
  }
  if (!$merge) {
    return parent::setValues($intent);
  }
  $reference_ids = [];
  $ids = [];
  foreach ($data as $value) {
    $reference = $intent
      ->loadEmbeddedEntity($value);
    if ($reference) {
      $reference_data = [
        'target_id' => $reference
          ->id(),
      ];
      $ids[] = $reference
        ->id();
      if ($reference instanceof RevisionableInterface) {
        $reference_data['target_revision_id'] = $reference
          ->getRevisionId();
      }
      $reference_ids[] = $reference_data;
    }
  }
  $overwrite_ids = $reference_ids;
  if ($merge && $intent
    ->shouldMergeChanges()) {
    $last_overwrite_values = $intent
      ->getStatusData([
      'field',
      $this->fieldName,
      'last_overwrite_values',
    ]);
    $last_pull_order = $intent
      ->getStatusData([
      'field',
      $this->fieldName,
      'last_imported_values',
    ]);
    $previous = $entity
      ->get($this->fieldName)
      ->getValue();
    $previous_ids = [];
    $previous_id_to_definition = [];
    foreach ($previous as $value) {
      if (empty($value['target_id'])) {
        continue;
      }
      $previous_id_to_definition[$value['target_id']] = $value;
      $previous_ids[] = $value['target_id'];
    }

    // Check if there actually are any local overrides => otherwise just
    // overwrite local references with new references and new order.
    if (!is_null($last_pull_order)) {
      $merged = [];
      $merged_ids = [];

      // First add all existing entities to the new value (merged items)
      foreach ($previous_ids as $target_id) {
        $reference = $storage
          ->load($target_id);
        if (!$reference) {
          continue;
        }

        // Removed from remote => remove locally.
        if (!in_array($target_id, $ids)) {
          $info = EntityStatus::getInfoForEntity($reference
            ->getEntityTypeId(), $reference
            ->uuid(), $intent
            ->getFlow(), $intent
            ->getPool());

          // But only if it was actually pulled.
          if ($info && !$info
            ->isSourceEntity()) {
            continue;
          }
        }
        $merged[] = $previous_id_to_definition[$target_id];
        $merged_ids[] = $target_id;
      }

      // Next add all newly added items where they fit best.
      if (count($reference_ids)) {
        for ($i = 0; $i < count($reference_ids); ++$i) {
          $def = $reference_ids[$i];
          $id = $def['target_id'];

          // Already present? Ignore.
          if (in_array($id, $merged_ids)) {
            continue;
          }

          // Deleted locally? Ignore.
          if (in_array($def, $last_overwrite_values)) {
            continue;
          }

          // Get the index of the item before this one, so we can add ours
          // after it. If this doesn't work, it will be the first item
          // in the new item set.
          $n = $i - 1;
          $index = false;
          while (false === $index && $n >= 0) {
            $index = array_search($reference_ids[$n]['target_id'], $merged_ids);
            --$n;
          }

          // First and unfound come first.
          if (0 === $i || false === $index) {
            array_unshift($merged, $def);
            array_unshift($merged_ids, $id);
            continue;
          }

          // Everything else comes behind the last item that exists.
          array_splice($merged, $index + 1, 0, [
            $def,
          ]);
          array_splice($merged_ids, $index + 1, 0, $id);
        }
      }
      $reference_ids = $merged;
      $ids = $merged_ids;
    }
  }
  if ('paragraph' == $this->fieldDefinition
    ->getSetting('target_type')) {
    foreach ($reference_ids as $def) {
      $paragraph = Paragraph::load($def['target_id']);
      if (!$paragraph
        ->getParentEntity()) {

        /**
         * @var \Drupal\Core\Entity\ContentEntityInterface $entity
         */
        $paragraph
          ->setParentEntity($entity, $this->fieldName);
      }
    }
  }
  if (!$merge || !$intent
    ->shouldMergeChanges() || $overwrite_ids !== $last_overwrite_values) {
    $entity
      ->set($this->fieldName, count($reference_ids) ? $reference_ids : null);
    $intent
      ->setStatusData([
      'field',
      $this->fieldName,
      'last_imported_values',
    ], $ids);
    $intent
      ->setStatusData([
      'field',
      $this->fieldName,
      'last_overwrite_values',
    ], $overwrite_ids);
  }
  return true;
}