scala-activerecord is an ORM library for Scala.
This library is inspired by ActiveRecord of Ruby on Rails. It is designed following the CoC(Convention over Configuration), DRY(Don't Repeat Yourself) principles.
Model implementation:
package models
import com.github.aselab.activerecord._
import com.github.aselab.activerecord.dsl._
case class Person(name: String, age: Int) extends ActiveRecord
object Person extends ActiveRecordCompanion[Person]Schema definition:
package models
import com.github.aselab.activerecord._
import com.github.aselab.activerecord.dsl._
object Tables extends ActiveRecordTables {
val people = table[Person]
}ActiveRecord model usage:
import com.github.aselab.activerecord.dsl._
import models._
object App extends App {
Tables.initialize
Person("person1", 25).save
Person("person2", 18).save
Person("person3", 40).save
Person("person4", 18).save
Person.findBy("name", "person1") //=> Some(Person("person1", 25))
Person.findBy("age", 55) //=> None
Person.findAllBy("age", 18).toList //=> List(Person("person2", 18), Person("person4", 18))
Person.where(_.age.~ >= 20).orderBy(_.age desc).toList //=> List(Person("person3", 40), Person("person1", 25))
Tables.cleanup
}Schema and query DSL is based on Squeryl.
- Auto connection management
- Composable query operation
- Callback
- Validation
- Association
MIT