intelligencebank-8.x-2.x-dev/modules/ib_dam_media/ib_dam_media.install

<?php

/**
 * @file
 * Contains install/uninstall hooks.
 */

/**
 * Update existing embedded field structures.
 */
function ib_dam_media_update_8601() {
  static $type       = 'ib_dam_embed';
  static $field_name = 'field_media_ib_dam_embed';
  /** @var \Drupal\media\MediaInterface[] $medias */
  $medias = \Drupal::entityTypeManager()
    ->getStorage('media')
    ->loadByProperties(['bundle' => $type]);

  if (empty($medias)) {
    return t('No items found to update');
  }
  $updated_count = 0;

  foreach ($medias as $media) {
    $need_upd = FALSE;

    if (!$media->hasField($field_name)) {
      continue;
    }
    $field = $media->get($field_name);
    if ($field->isEmpty()) {
      continue;
    }

    $fix_value_cb = function (&$value, $index) use (&$field, &$need_upd) {
      $options =& $value['options'];

      foreach (['asset_type', 'filemimetype'] as $name) {
        if (!isset($options[$name])) {
          continue;
        }
        $need_upd ?: $need_upd = TRUE;
        $options['attributes']['ib_dam'][$name] = $options[$name];
        unset($options[$name]);
      }

      $field->set($index, $value);
    };

    array_walk($field->getValue(), $fix_value_cb);

    if ($need_upd) {
      $media->save();
      $updated_count++;
    }
  }

  return $updated_count > 0
    ? t('Successfully updated @count embed media items', ['@count' => $updated_count])
    : t('No items found to update');
}