coffee.scala

import play.api.db.slick.HasDatabaseConfig
import slick.driver.JdbcProfile
import slick.lifted.AbstractTable

case class Coffee (name: String, id: Option[Int])

abstract class CoffeeDao extends Dao {

  import driver.api._

  class Coffees(tag: Tag) extends Table[Coffee](tag, "COFFEES") {
    def name = column[String]("COF_NAME")
    def id = column[Int]("ID", O.PrimaryKey)
    def * = (name, id.?) <> (Coffee.tupled, Coffee.unapply)
  }
  val coffees = TableQuery[Coffees]

  type TableType = TableQuery[Coffees]

  def saveCoffee(coffee: Coffee) = {
    save (coffee, coffees)
  }

  def listCoffees = {
    list(coffees)
  }
}

trait Dao extends HasDatabaseConfig[JdbcProfile] {

  import driver.api._
  
  type TableType <: AbstractTable[_]
  type TableElement = TableType#TableElementType

  def save(newItem: TableElement, tableQuery: TableQuery[TableType]) = {
    db.run(tableQuery.insertOrUpdate(newItem))
  }

  def list(tableQuery: TableQuery[TableType]) = {
    db.run(tableQuery.result)
  }

}