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15 changes: 15 additions & 0 deletions modules/core/src/main/scala/doobie/syntax/connectionio.scala
Original file line number Diff line number Diff line change
Expand Up @@ -14,25 +14,40 @@ import doobie.hi.{connection as IHC}

class ConnectionIOOps[A](ma: ConnectionIO[A]) {
def transact[M[_]: MonadCancelThrow](xa: Transactor[M]): M[A] = xa.trans.apply(ma)

def transactRaw[M[_]: MonadCancelThrow](xa: Transactor[M]): M[A] = xa.rawTrans.apply(ma)
}

class OptionTConnectionIOOps[A](ma: OptionT[ConnectionIO, A]) {
def transact[M[_]: MonadCancelThrow](xa: Transactor[M]): OptionT[M, A] =
OptionT(
xa.trans.apply(ma.orElseF(IHC.rollback.as(None)).value)
)

def transactRaw[M[_]: MonadCancelThrow](xa: Transactor[M]): OptionT[M, A] =
OptionT(
xa.rawTrans.apply(ma.orElseF(IHC.rollback.as(None)).value)
)
}

class EitherTConnectionIOOps[E, A](ma: EitherT[ConnectionIO, E, A]) {
def transact[M[_]: MonadCancelThrow](xa: Transactor[M]): EitherT[M, E, A] =
EitherT(
xa.trans.apply(ma.leftSemiflatMap(IHC.rollback.as(_)).value)
)

def transactRaw[M[_]: MonadCancelThrow](xa: Transactor[M]): EitherT[M, E, A] =
EitherT(
xa.rawTrans.apply(ma.leftSemiflatMap(IHC.rollback.as(_)).value)
)
}

class KleisliConnectionIOOps[A, B](ma: Kleisli[ConnectionIO, A, B]) {
def transact[M[_]: MonadCancelThrow](xa: Transactor[M]): Kleisli[M, A, B] =
ma.mapK(xa.trans)

def transactRaw[M[_]: MonadCancelThrow](xa: Transactor[M]): Kleisli[M, A, B] =
ma.mapK(xa.rawTrans)
}

trait ToConnectionIOOps {
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -26,8 +26,17 @@ class ConnectionIOSuite extends munit.CatsEffectSuite {
prg.transact(xa).assertEquals(List(1, 2, 3, 4, 5, 6))
}

test("Semigroup ConnectionIO raw") {
val prg = Applicative[ConnectionIO].pure(List(1, 2, 3)) `combine` Applicative[ConnectionIO].pure(List(4, 5, 6))
prg.transactRaw(xa).assertEquals(List(1, 2, 3, 4, 5, 6))
}

test("Monoid ConnectionIO") {
Monoid[ConnectionIO[List[Int]]].empty.transact(xa).assertEquals(Nil)
}

test("Monoid ConnectionIO raw") {
Monoid[ConnectionIO[List[Int]]].empty.transactRaw(xa).assertEquals(Nil)
}

}