EntityContentBase.php in Multiversion 8

Namespace

Drupal\multiversion\Plugin\migrate\source

File

src/Plugin/migrate/source/EntityContentBase.php

<?php

namespace Drupal\multiversion\Plugin\migrate\source;


/**
 * Migration source class for content entities.
 *
 * @MigrateSource(
 *   id = "multiversion"
 * )
 */
class EntityContentBase extends SourcePluginBase {

  /**
   * {@inheritdoc}
   */
  protected function initializeIterator() {

    // At this point Multiversion is obviously installed and the new storage
    // handler is already active. But since the new schema isn't applied yet
    // and the new handler doesn't know how to load from the old schema, we have
    // to initialize the previously installed storage handler and use that to
    // load the entities.
    $last_definition = $this->entityManager
      ->getLastInstalledDefinition($this->entityTypeId);
    $storage_class = $last_definition
      ->getStorageClass();
    $last_storage = $this->entityManager
      ->createHandlerInstance($storage_class, $last_definition);
    $entities = $last_storage
      ->loadMultiple();
    $results = [];
    foreach ($entities as $entity_id => $entity) {
      if (isset($entity->_deleted->value) && $entity->_deleted->value) {
        continue;
      }
      foreach ($entity
        ->getTranslationLanguages(TRUE) as $language) {
        $result = [];
        foreach ($entity
          ->getTranslation($language
          ->getId()) as $field_name => $field) {
          if (!$field
            ->isEmpty()) {

            /** @var \Drupal\Core\Field\FieldItemListInterface $field */
            $value = $field
              ->getValue();

            // If there is only one value in the field, unwrap it.
            if (count($value) == 1) {
              $value = reset($value);

              // If there's only one property in the field value, unwrap it.
              if (count($value) == 1 && empty($value['langcode'])) {
                $value = reset($value);
              }
            }
            $result[$field_name] = $value;
          }
        }
        $results[] = $result;
      }
    }
    return new \ArrayIterator(array_values($results));
  }

}

Classes

Name	Description
EntityContentBase	Migration source class for content entities.