FutureImplicits

 import scalikejdbc._, async._, FutureImplicits._
 val wc = Worker.column
 val future: Future[Unit] = AsyncDB.localTx { implicit tx =>
   for {
     companyId <- withSQL {
         insert.into(Company).values("Typesafe", DateTime.now)
       }.updateAndReturnGeneratedKey
     _ <- update(Worker).set(wc.companyId -> companyId).where.eq(wc.id, 123)
   } yield ()
 }