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我是颤振中的对象框的新手，并且在尝试将对象放入商店时已经遇到错误。我有以下代码：

对象框类

import 'package:finsec/features/income/data/models/Income.dart';

import '../../../../objectbox.g.dart';
import 'dart:async';

class ObjectBox {
  /// The Store of this app.
  late final Store store;
  late final Box<Income> incomeBox;

  /// A stream of all notes ordered by date.
  late final Stream<Query<Income>> incomeQueryStream;

  ObjectBox._create(this.store) {
    // Add any additional setup code, e.g. build queries.
    incomeBox = Box<Income>(store);

    final qBuilder = incomeBox.query(Income_.monthNumber.equals(1)  & Income_.calendarYear.equals(2022));
 
    incomeQueryStream = qBuilder.watch(triggerImmediately: true);
  //  Stream<Query<Income>> watchedQuery = incomeBox.query().watch();
  }

  /// Create an instance of ObjectBox to use throughout the app.
  static Future<ObjectBox> create() async {
    // Future<Store> openStore() {...} is defined in the generated objectbox.g.dart
    final store = await openStore();
    return ObjectBox._create(store);
  }
}

然后在我的 main.dart 文件中，我有以下内容


/// Provides access to the ObjectBox Store throughout the app.
late ObjectBox objectBox;
late SyncClient _syncClient;
bool hasBeenInitialized = false;

Future<void> main() async {
  // This is required so ObjectBox can get the application directory
  // to store the database in.
  WidgetsFlutterBinding.ensureInitialized();

  objectBox = await ObjectBox.create();

  runApp(new MyHomePage( initialDate: DateTime.now()));

}
class MyHomePage extends StatefulWidget  {
  final DateTime initialDate;

  const MyHomePage({required this.initialDate}) ;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage>  {
//some code here
}

在另一个名为 incomeModel.dart 的类中，我试图调用 putMany 函数。这是其他类的部分代码

 void saveIncome(String status)  {
      final isoCalendar = IsoCalendar.fromDateTime(this.form.value[datePaidLabel]);
      int groupID = Utilities.getUniqueCode();
      List<Income> incomeList = <Income>[];

      Income income = new Income(
        groupID: groupID,
        expectedAmount: double.parse(this.form.value[incomeAmountLabel]),
        actualAmount: double.parse(this.form.value[incomeAmountLabel]),
        frequency: this.form.value[frequencyLabel],
        dateReceived: this.form.value[datePaidLabel].toString(),
        category: this.form.value[categoryLabel],
        depositAcct: this.form.value[depositToLabel],
        description: this.form.value[descriptionLabel],
        status: status,
        weekNumber: isoCalendar.weekNumber,
        monthNumber: Utilities.epochConverter("MONTH", this.form.value[datePaidLabel]),
        calendarYear: isoCalendar.year,
        isActive: isActiveY,
        groupName: currentTransactions,
      );

      incomeList.add(income);

      DateTime dateDerivedValue = this.form.value[datePaidLabel];
      for (int i = 1; i <= Utilities.getFrequency(this.form.value[frequencyLabel]); i++) {
        dateDerivedValue = Utilities.getDate(
            this.form.value[frequencyLabel], dateDerivedValue, incomeTransaction, i
        );

        incomeList.add(new Income(
            groupID: groupID,
            expectedAmount: double.parse(this.form.value[incomeAmountLabel]),
            actualAmount: double.parse(this.form.value[incomeAmountLabel]),
            frequency: this.form.value[frequencyLabel],
            dateReceived: dateDerivedValue.toString(),
            category: this.form.value[categoryLabel],
            depositAcct: this.form.value[depositToLabel],
            description: this.form.value[descriptionLabel],
            status: status,
            weekNumber: isoCalendar.weekNumber,
            monthNumber:
                Utilities.epochConverter(
                    "MONTH", this.form.value[datePaidLabel]),
            calendarYear: isoCalendar.year,
            isActive: isActiveY,
            groupName: currentTransactions,
          )
        );
      }

      objectBox.incomeBox.putMany(incomeList);
  }

如您所见，我正在从incomeModel.dart 类中调用objectBox.incomeBox.putMany(incomeList)。objectBox 对象在主类中，所以我将它导入到 incomeModel 中，以便我可以访问它。但是，我收到以下错误

Bad state: failed to create cursor: 10001 Can not modify object of sync-enabled type "Income" because sync has not been activated for this store.

我不确定这意味着什么或该怎么做。我将有许多将插入数据的类，我需要从任何类访问存储，以便我可以插入、更新、删除数据。

有人可以帮我解决这个问题吗？我怎样才能使这项工作？提前致谢

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1 回答 1

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我通过使用objectbox_sync_flutter_libs而不是objectbox_flutter_libs在pubspec.yml中解决了这个问题

于 2022-02-21T10:09:33.290 回答