Safe Haskell	None
Language	Haskell2010

Database.PostgreSQL.Transact

Documentation

newtype DBT m a Source #

Constructors

DBT
Fields unDBT :: ReaderT Connection m a

Instances

MonadTrans DBT Source #
Methods lift :: Monad m => m a -> DBT m a #
Monad m => Monad (DBT m) Source #
Methods (>>=) :: DBT m a -> (a -> DBT m b) -> DBT m b # (>>) :: DBT m a -> DBT m b -> DBT m b # return :: a -> DBT m a # fail :: String -> DBT m a #
Functor m => Functor (DBT m) Source #
Methods fmap :: (a -> b) -> DBT m a -> DBT m b # (<$) :: a -> DBT m b -> DBT m a #
Applicative m => Applicative (DBT m) Source #
Methods pure :: a -> DBT m a # (<>) :: DBT m (a -> b) -> DBT m a -> DBT m b # (>) :: DBT m a -> DBT m b -> DBT m b # (<*) :: DBT m a -> DBT m b -> DBT m a #
MonadIO m => MonadIO (DBT m) Source #
Methods liftIO :: IO a -> DBT m a #
MonadThrow m => MonadThrow (DBT m) Source #
Methods throwM :: Exception e => e -> DBT m a #
(MonadIO m, MonadMask m) => MonadCatch (DBT m) Source #
Methods catch :: Exception e => DBT m a -> (e -> DBT m a) -> DBT m a #