RFC.Psql

Documentation

module Database.PostgreSQL.Typed

module Database.PostgreSQL.Typed.Query

module Database.PostgreSQL.Typed.Types

type PGConnectionPool = Pool PGConnection

type ConnectionPool = PGConnectionPool

class HasPsql m where

Minimal complete definition

getPsqlPool

Methods

getPsqlPool :: m PGConnectionPool

Instances

Monad m => HasPsql (ReaderT * PGConnectionPool m)

Methods

getPsqlPool :: ReaderT * PGConnectionPool m PGConnectionPool

withPsqlConnection :: (HasPsql m, MonadIO m) => (PGConnection -> IO a) -> m a

withPsqlTransaction :: (HasPsql m, MonadIO m) => IO a -> m a

defaultConnectInfo :: (MonadIO m, MonadFail m) => m PGDatabase

createConnectionPool :: MonadIO m => PGDatabase -> m PGConnectionPool

query :: (MonadIO m, HasPsql m, PGQuery q a) => q -> m [a]

query1 :: (MonadIO m, HasPsql m, PGQuery q a) => q -> m (Maybe a)

query1Else :: (MonadIO m, HasPsql m, PGQuery q a, Exception e) => q -> e -> m (Maybe a)

execute :: (MonadIO m, HasPsql m, PGQuery q ()) => q -> m Int

execute_ :: (MonadIO m, HasPsql m, PGQuery q ()) => q -> m ()

Orphan instances

FromEnv PGDatabase

Methods

fromEnv :: Parser PGDatabase

DefConfig PGDatabase

Methods

defConfig :: PGDatabase