Web Unexpected null value #967
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problem
An unconfirmed bug.
Comments
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same bug |
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I found the error! It's the new enhancement from v. 2.2.0 |
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I will fix this until tomorrow. It seems like it's not a good idea to merge things with a failing pipeline. |
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I'm having the exact same issue. Here's the counter sample app (after I made changes to make it compatible with latest flutter version) import 'dart:async';
import 'dart:collection';
import 'dart:math';
import 'dart:typed_data';
import 'package:hive/hive.dart';
import 'package:hive/src/adapters/big_int_adapter.dart';
import 'package:hive/src/adapters/date_time_adapter.dart';
import 'package:hive/src/backend/storage_backend_memory.dart';
import 'package:hive/src/box/box_base_impl.dart';
import 'package:hive/src/box/box_impl.dart';
import 'package:hive/src/box/default_compaction_strategy.dart';
import 'package:hive/src/box/default_key_comparator.dart';
import 'package:hive/src/box/lazy_box_impl.dart';
import 'package:hive/src/registry/type_registry_impl.dart';
import 'package:hive/src/util/extensions.dart';
import 'package:meta/meta.dart';
import 'backend/storage_backend.dart';
/// Not part of public API
class HiveImpl extends TypeRegistryImpl implements HiveInterface {
final _boxes = HashMap<String, BoxBaseImpl>();
final _openingBoxes = HashMap<String, Future>();
BackendManagerInterface? _manager;
final Random _secureRandom = Random.secure();
/// Not part of public API
@visibleForTesting
String? homePath;
/// Not part of public API
HiveImpl();
/// Not part of public API
@visibleForTesting
HiveImpl.debug(this._manager) {
_registerDefaultAdapters();
}
/// Not part of public API
@visibleForTesting
HiveImpl.test() : _manager = BackendManager.select() {
registerAdapter(DateTimeAdapter<DateTime>(), internal: true);
registerAdapter(BigIntAdapter(), internal: true);
}
void _registerDefaultAdapters() {
registerAdapter(DateTimeWithTimezoneAdapter(), internal: true);
registerAdapter(DateTimeAdapter<DateTimeWithoutTZ>(), internal: true);
registerAdapter(BigIntAdapter(), internal: true);
}
@override
void init(
String? path, {
HiveStorageBackendPreference backendPreference =
HiveStorageBackendPreference.native,
}) {
homePath = path;
_manager ??= BackendManager.select(backendPreference);
_registerDefaultAdapters();
}
Future<BoxBase<E>> _openBox<E>(
String name,
bool lazy,
HiveCipher? cipher,
KeyComparator comparator,
CompactionStrategy compaction,
bool recovery,
String? path,
Uint8List? bytes,
String? collection,
) async {
assert(path == null || bytes == null);
assert(name.length <= 255 && name.isAscii,
'Box names need to be ASCII Strings with a max length of 255.');
name = name.toLowerCase();
if (isBoxOpen(name)) {
if (lazy) {
return lazyBox(name);
} else {
return box(name);
}
} else {
if (_openingBoxes.containsKey(name)) {
await _openingBoxes[name];
if (lazy) {
return lazyBox(name);
} else {
return box(name);
}
}
var completer = Completer();
_openingBoxes[name] = completer.future;
BoxBaseImpl<E>? newBox;
try {
StorageBackend backend;
if (bytes != null) {
backend = StorageBackendMemory(bytes, cipher);
} else {
backend = await _manager!
.open(name, path ?? homePath, recovery, cipher, collection);
}
if (lazy) {
newBox = LazyBoxImpl<E>(this, name, comparator, compaction, backend);
} else {
newBox = BoxImpl<E>(this, name, comparator, compaction, backend);
}
await newBox.initialize();
_boxes[name] = newBox;
completer.complete();
return newBox;
} catch (error, stackTrace) {
newBox?.close();
completer.completeError(error, stackTrace);
rethrow;
} finally {
// ignore: unawaited_futures
_openingBoxes.remove(name);
}
}
}
@override
Future<Box<E>> openBox<E>(
String name, {
HiveCipher? encryptionCipher,
KeyComparator keyComparator = defaultKeyComparator,
CompactionStrategy compactionStrategy = defaultCompactionStrategy,
bool crashRecovery = true,
String? path,
Uint8List? bytes,
String? collection,
@Deprecated('Use encryptionCipher instead') List<int>? encryptionKey,
}) async {
if (encryptionKey != null) {
encryptionCipher = HiveAesCipher(encryptionKey);
}
return await _openBox<E>(name, false, encryptionCipher, keyComparator,
compactionStrategy, crashRecovery, path, bytes, collection) as Box<E>;
}
@override
Future<LazyBox<E>> openLazyBox<E>(
String name, {
HiveCipher? encryptionCipher,
KeyComparator keyComparator = defaultKeyComparator,
CompactionStrategy compactionStrategy = defaultCompactionStrategy,
bool crashRecovery = true,
String? path,
String? collection,
@Deprecated('Use encryptionCipher instead') List<int>? encryptionKey,
}) async {
if (encryptionKey != null) {
encryptionCipher = HiveAesCipher(encryptionKey);
}
return await _openBox<E>(
name,
true,
encryptionCipher,
keyComparator,
compactionStrategy,
crashRecovery,
path,
null,
collection) as LazyBox<E>;
}
BoxBase<E> _getBoxInternal<E>(String name, [bool? lazy]) {
var lowerCaseName = name.toLowerCase();
var box = _boxes[lowerCaseName];
if (box != null) {
if ((lazy == null || box.lazy == lazy) && box.valueType == E) {
return box as BoxBase<E>;
} else {
var typeName = box is LazyBox
? 'LazyBox<${box.valueType}>'
: 'Box<${box.valueType}>';
throw HiveError('The box "$lowerCaseName" is already open '
'and of type $typeName.');
}
} else {
throw HiveError('Box not found. Did you forget to call Hive.openBox()?');
}
}
/// Not part of public API
BoxBase? getBoxWithoutCheckInternal(String name) {
var lowerCaseName = name.toLowerCase();
return _boxes[lowerCaseName];
}
@override
Box<E> box<E>(String name) => _getBoxInternal<E>(name, false) as Box<E>;
@override
LazyBox<E> lazyBox<E>(String name) =>
_getBoxInternal<E>(name, true) as LazyBox<E>;
@override
bool isBoxOpen(String name) {
return _boxes.containsKey(name.toLowerCase());
}
@override
Future<void> close() {
var closeFutures = _boxes.values.map((box) {
return box.close();
});
return Future.wait(closeFutures);
}
/// Not part of public API
void unregisterBox(String name) {
name = name.toLowerCase();
_openingBoxes.remove(name);
_boxes.remove(name);
}
@override
Future<void> deleteBoxFromDisk(String name,
{String? path, String? collection}) async {
var lowerCaseName = name.toLowerCase();
var box = _boxes[lowerCaseName];
if (box != null) {
await box.deleteFromDisk();
} else {
await _manager!.deleteBox(lowerCaseName, path ?? homePath, collection);
}
}
@override
Future<void> deleteFromDisk() {
var deleteFutures = _boxes.values.toList().map((box) {
return box.deleteFromDisk();
});
return Future.wait(deleteFutures);
}
@override
List<int> generateSecureKey() {
return _secureRandom.nextBytes(32);
}
@override
Future<bool> boxExists(String name,
{String? path, String? collection}) async {
var lowerCaseName = name.toLowerCase();
return await _manager!
.boxExists(lowerCaseName, path ?? homePath, collection);
}
}The app running on Chrome, macOS outputs this stack trace: It works fine on Chrome on Windows, but on my mac it breaks. [EDIT] I'm using Flutter 3.0.0, Hive v2.2.0 |
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I think this can be resolved by calling |
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@TheOneWithTheBraid I used For now, i think safe way is downgrade to version |
TheOneWithTheBraid
pushed a commit
that referenced
this issue
May 18, 2022
- remove need for manual `Hive.init()` call - provide default backend manager - fix most tests Fixes: #967 Signed-off-by: TheOneWithTheBraid <the-one@with-the-braid.cf>
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Ah, I see the problem you face: For some reasons, the As of now, you can override is by git: dependency_overrides:
hive:
git:
url: https://github.com/hivedb/hive.git
path: hive
ref: braid/backend-manager-fallback
hive_flutter:
git:
url: https://github.com/hivedb/hive.git
path: hive_flutter
ref: braid/backend-manager-fallback |
TheOneWithTheBraid
pushed a commit
to TheOneWithTheBraid/hive
that referenced
this issue
May 18, 2022
- remove need for manual `Hive.init()` call - provide default backend manager - fix most tests Fixes: isar#967 Signed-off-by: TheOneWithTheBraid <the-one@with-the-braid.cf>
|
2.2.0 needs to be pulled. It's a disaster. |
roubachof
pushed a commit
to roubachof/hive
that referenced
this issue
May 24, 2022
- remove need for manual `Hive.init()` call - provide default backend manager - fix most tests Fixes: isar#967 Signed-off-by: TheOneWithTheBraid <the-one@with-the-braid.cf>
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_hiveBox = await Hive.openBox(_boxName)In web when trying to open box, getting Unexpected null value exception.
Occurring on the latest version 2.2.0, could not find this issue in 2.1.0
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