platform/packages/orm/angel_orm/example/main.dart

import 'dart:async';

import 'package:protevus_orm/protevus_orm.dart';
import 'package:protevus_serialize/protevus_serialize.dart';
import 'package:optional/optional.dart';

part 'main.g.dart';

void main() async {
  var query = EmployeeQuery()
    ..where?.firstName.equals('Rich')
    ..where?.lastName.equals('Person')
    ..where?.raw('COM.deleted = false')
    ..orWhere((w) => w.salary.greaterThanOrEqualTo(75000))
    ..join('companies', 'company_id', 'id', alias: 'COM');

  var richPerson = await query.getOne(_FakeExecutor());
  if (richPerson.isPresent) {
    print(richPerson.first.toJson());
  }
}

class _FakeExecutor extends QueryExecutor {
  const _FakeExecutor();

  @override
  Future<List<List>> query(
      String tableName, String query, Map<String, dynamic> substitutionValues,
      {String returningQuery = '',
      List<String> returningFields = const []}) async {
    var now = DateTime.now();
    print(
        '_FakeExecutor received query: $query and values: $substitutionValues');
    return [
      [1, now, now, 'Rich', 'Person', 100000.0]
    ];
  }

  @override
  Future<T> transaction<T>(FutureOr<T> Function(QueryExecutor) f) {
    throw UnsupportedError('Transactions are not supported.');
  }

  final Dialect _dialect = const PostgreSQLDialect();

  @override
  Dialect get dialect => _dialect;
}

@orm
@serializable
abstract class _Employee extends Model {
  String? get firstName;

  String? get lastName;

  double? get salary;
}