112 lines
3 KiB
Dart
112 lines
3 KiB
Dart
import 'dart:async';
|
|
|
|
import 'package:angel_model/angel_model.dart';
|
|
import 'package:angel_orm/angel_orm.dart';
|
|
import 'package:angel_orm/src/query.dart';
|
|
import 'package:angel_serialize/angel_serialize.dart';
|
|
part 'main.g.dart';
|
|
part 'main.serializer.g.dart';
|
|
|
|
main() async {
|
|
var query = new EmployeeQuery()
|
|
..where.firstName.equals('Rich')
|
|
..where.lastName.equals('Person')
|
|
..orWhere((w) => w.salary.greaterThanOrEqualTo(75000))
|
|
..join('companies', 'company_id', 'id');
|
|
|
|
var richPerson = await query.getOne(new _FakeExecutor());
|
|
print(richPerson.toJson());
|
|
}
|
|
|
|
class _FakeExecutor extends QueryExecutor {
|
|
const _FakeExecutor();
|
|
|
|
@override
|
|
Future<List<List>> query(
|
|
String query, Map<String, dynamic> substitutionValues,
|
|
[returningFields]) async {
|
|
var now = new DateTime.now();
|
|
print(
|
|
'_FakeExecutor received query: $query and values: $substitutionValues');
|
|
return [
|
|
[1, 'Rich', 'Person', 100000.0, now, now]
|
|
];
|
|
}
|
|
|
|
@override
|
|
Future<T> transaction<T>(FutureOr<T> Function() f) {
|
|
throw new UnsupportedError('Transactions are not supported.');
|
|
}
|
|
}
|
|
|
|
@orm
|
|
@serializable
|
|
abstract class _Employee extends Model {
|
|
String get firstName;
|
|
|
|
String get lastName;
|
|
|
|
double get salary;
|
|
}
|
|
|
|
class EmployeeQuery extends Query<Employee, EmployeeQueryWhere> {
|
|
@override
|
|
final QueryValues values = new MapQueryValues();
|
|
|
|
EmployeeQueryWhere _where;
|
|
|
|
EmployeeQuery() {
|
|
_where = new EmployeeQueryWhere(this);
|
|
}
|
|
|
|
@override
|
|
EmployeeQueryWhere get where => _where;
|
|
|
|
@override
|
|
String get tableName => 'employees';
|
|
|
|
@override
|
|
List<String> get fields =>
|
|
['id', 'first_name', 'last_name', 'salary', 'created_at', 'updated_at'];
|
|
|
|
@override
|
|
EmployeeQueryWhere newWhereClause() => new EmployeeQueryWhere(this);
|
|
|
|
@override
|
|
Employee deserialize(List row) {
|
|
return new Employee(
|
|
id: row[0].toString(),
|
|
firstName: row[1] as String,
|
|
lastName: row[2] as String,
|
|
salary: row[3] as double,
|
|
createdAt: row[4] as DateTime,
|
|
updatedAt: row[5] as DateTime);
|
|
}
|
|
}
|
|
|
|
class EmployeeQueryWhere extends QueryWhere {
|
|
EmployeeQueryWhere(EmployeeQuery query)
|
|
: id = new NumericSqlExpressionBuilder(query, 'id'),
|
|
firstName = new StringSqlExpressionBuilder(query, 'first_name'),
|
|
lastName = new StringSqlExpressionBuilder(query, 'last_name'),
|
|
salary = new NumericSqlExpressionBuilder(query, 'salary'),
|
|
createdAt = new DateTimeSqlExpressionBuilder(query, 'created_at'),
|
|
updatedAt = new DateTimeSqlExpressionBuilder(query, 'updated_at');
|
|
|
|
@override
|
|
Iterable<SqlExpressionBuilder> get expressionBuilders {
|
|
return [id, firstName, lastName, salary, createdAt, updatedAt];
|
|
}
|
|
|
|
final NumericSqlExpressionBuilder<int> id;
|
|
|
|
final StringSqlExpressionBuilder firstName;
|
|
|
|
final StringSqlExpressionBuilder lastName;
|
|
|
|
final NumericSqlExpressionBuilder<double> salary;
|
|
|
|
final DateTimeSqlExpressionBuilder createdAt;
|
|
|
|
final DateTimeSqlExpressionBuilder updatedAt;
|
|
}
|