/
main.dart
77 lines (59 loc) · 1.72 KB
/
main.dart
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// ignore_for_file: avoid_print
import 'dart:io';
import 'package:cbl/cbl.dart';
import 'package:cbl_dart/cbl_dart.dart';
late final Database db;
late final Collection collection;
Future<void> main(List<String> args) async {
if (args.contains('--help') ||
args.contains('-h') ||
(args.isNotEmpty && args.length != 1)) {
print(
'''
Usage: dart lib/main.dart [message]
The provided message will be stored in the database.
If no message is provided, all stored messages will be listed.
''',
);
exit(1);
}
await CouchbaseLiteDart.init(edition: Edition.community);
db = await Database.openAsync('db');
collection = await db.createCollection('messages');
final message = args.isEmpty ? null : args[0];
if (message != null) {
await storeMessage(message);
} else {
await listMessages();
}
await db.close();
}
Future<void> storeMessage(String message) async {
final doc = MutableDocument({
'type': 'message',
'createdAt': DateTime.now(),
'body': message,
});
await collection.saveDocument(doc);
print('Message ${doc.id} stored: ${doc.toJson()}');
}
Future<void> listMessages() async {
final query = const QueryBuilder()
.select(
SelectResult.expression(Meta.id),
SelectResult.property('createdAt'),
SelectResult.property('body'),
)
.from(DataSource.collection(collection))
.where(Expression.property('type').equalTo(
Expression.string('message'),
))
.orderBy(Ordering.property('createdAt').descending());
final resultSet = await query.execute();
var messages = 0;
await for (final result in resultSet.asStream()) {
messages++;
print(result.toJson());
}
print('$messages messages found');
}