addUploader method

@override FutureOr<void> addUploader(String name, String email)

Implementation

@override
FutureOr<void> addUploader(String name, String email) async {
  final existing = await query(name);
  if (existing == null) {
    throw StateError('$name not exist!');
  }
  final uploaders = [...?existing.uploaders];
  if (!uploaders.contains(email)) {
    uploaders.add(email);
  }
  await _put(existing.copyWith(uploaders: uploaders));
}