update property

OnData<TParsed>? get update

Implementation

OnData<TParsed>? get update {
  if (options.update != null) {
    // dereference all variables that might be needed if the widget is disposed
    final OnMutationUpdate<TParsed>? widgetUpdate = options.update;
    final OnData<TParsed> optimisticUpdate = _optimisticUpdate;

    // wrap update logic to handle optimism
    FutureOr<void> updateOnData(QueryResult<TParsed>? result) {
      if (result!.isOptimistic) {
        return optimisticUpdate(result);
      } else {
        return widgetUpdate!(cache, result);
      }
    }

    return updateOnData;
  }
  return null;
}