platform/README.md

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2017-06-17 16:45:31 +00:00
# orm
[![Pub](https://img.shields.io/pub/v/angel_orm.svg)](https://pub.dartlang.org/packages/angel_orm)
[![build status](https://travis-ci.org/angel-dart/orm.svg)](https://travis-ci.org/angel-dart/orm)
**This project is currently in the early stages, and may change at any given
time without warning.**
Source-generated ORM for use with the Angel framework. Documentation is coming soon.
This ORM can work with virtually any database, thanks to the functionality exposed by
`package:query_builder`.
```dart
library angel_orm.test.models.car;
import 'package:angel_framework/common.dart';
import 'package:angel_orm/angel_orm.dart' as orm;
import 'package:angel_serialize/angel_serialize.dart';
import 'car.postgres.g.dart';
part 'car.g.dart';
@serializable
@orm.model
class _Car extends Model {
@override
String id;
String manufacturer;
int year;
@override
@Alias('created_at')
DateTime createdAt;
@override
@Alias('updated_at')
DateTime updatedAt;
}
```
After building, you'll have access to a `Repository` class with strongly-typed methods that
allow to run asynchronous queries without a headache.
You can run complex queries like:
```dart
import 'package:angel_framework/angel_framework.dart';
import 'package:postgres/postgres.dart';
import 'car.dart';
import 'car.orm.g.dart';
/// Returns an Angel plug-in that connects to a PostgreSQL database, and sets up a controller connected to it...
AngelConfigurer connectToCarsTable(PostgreSQL connection) {
return (Angel app) async {
// Instantiate a Car repository, which is auto-generated. This class helps us build fluent queries easily.
var cars = new CarRepository(connection);
// Register it with Angel's dependency injection system.
//
// This means that we can use it as a parameter in routes and controllers.
app.container.singleton(cars);
// Attach the controller we create below
await app.configure(new CarService(cars));
};
}
@Expose('/cars')
class CarService extends Controller {
/// `manufacturerId` and `CarRepository` in this case would be dependency-injected. :)
@Expose('/:manufacturerId/years')
getAllYearsForManufacturer(String manufacturerId, CarRepository cars) {
return
cars
.whereManufacturer(manufacturerId)
.get()
.map((Car car) {
// Cars are deserialized automatically, woohoo!
return car.year;
})
.toList();
}
}
```