ItemListBloc filterSource - Manage lists with Flutter Bloc

item_list_bloc.dart

Iterable<I> _filterSource(List<I> items) {
  final activeConditions =
      (_filterConditionsBloc.state as ConditionsInitialized).activeConditions;

  if (activeConditions.isEmpty) {
    return items;
  }

  // If any active condition matches we can immediately return that item.
  return items.where((item) => activeConditions.any((conditionKey) {
        final conditionKeyValue = splitConditionKey(conditionKey);
        return item[conditionKeyValue[0]] == conditionKeyValue[1];
      }));
}