loadRequest method

  1. @protected
Future<Map<String, DynamicMap>?> loadRequest()

Implement internal processing when load, reload, or next is executed.

If Null is returned, the value is not updated.

loadやreload、nextを実行した際の内部処理を実装します。

Nullが返された場合は値をアップデートしません。

Implementation

@protected
Future<Map<String, DynamicMap>?> loadRequest() async {
  if (subscriptions.isNotEmpty) {
    await Future.forEach<StreamSubscription>(
      subscriptions,
      (subscription) => subscription.cancel(),
    );
    subscriptions.clear();
    _value.clear();
  }
  if (modelQuery.adapter.availableListen) {
    subscriptions.addAll(
      await modelQuery.adapter.listenCollection(databaseQuery),
    );
  }
  return await modelQuery.adapter.loadCollection(databaseQuery);
}