function FieldFile::transform

Overrides ProcessPluginBase::transform

File

core/modules/file/src/Plugin/migrate/process/d6/FieldFile.php, line 66

Class

FieldFile

Namespace

Code

public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property) {
  $options = unserialize($value['data']);
  // Try to look up the ID of the migrated file. If one cannot be found, it
  // means the file referenced by the current field item did not migrate for
  // some reason -- file migration is notoriously brittle -- and we do NOT
  // want to send invalid file references into the field system (it causes
  // fatal errors), so return an empty item instead.
  $lookup_result = $this->migrateLookup
    ->lookup('d6_file', [
    $value['fid'],
  ]);
  if ($lookup_result) {
    return [
      'target_id' => $lookup_result[0]['fid'],
      'display' => $value['list'],
      'description' => $options['description'] ?? '',
      'alt' => $options['alt'] ?? '',
      'title' => $options['title'] ?? '',
    ];
  }
  else {
    return [];
  }
}