Database.PostgreSQL.Connector

PG Connector.

Documentation

newtype ConnectorT e m a

Constructors

ConnectorT

Fields

• unConnectorT :: ReaderT e m a

Instances

Monad m => MonadReader e (ConnectorT e m)

Methods

ask :: ConnectorT e m e

local :: (e -> e) -> ConnectorT e m a -> ConnectorT e m a

reader :: (e -> a) -> ConnectorT e m a

MonadBase b m => MonadBase b (ConnectorT r m)

Methods

liftBase :: b α -> ConnectorT r m α

MonadTrans (ConnectorT r)

Methods

lift :: Monad m => m a -> ConnectorT r m a

Monad m => Monad (ConnectorT e m)

Methods

(>>=) :: ConnectorT e m a -> (a -> ConnectorT e m b) -> ConnectorT e m b

(>>) :: ConnectorT e m a -> ConnectorT e m b -> ConnectorT e m b

return :: a -> ConnectorT e m a

fail :: String -> ConnectorT e m a

Functor m => Functor (ConnectorT e m)

Methods

fmap :: (a -> b) -> ConnectorT e m a -> ConnectorT e m b

(<$) :: a -> ConnectorT e m b -> ConnectorT e m a

Applicative m => Applicative (ConnectorT e m)

Methods

pure :: a -> ConnectorT e m a

(<*>) :: ConnectorT e m (a -> b) -> ConnectorT e m a -> ConnectorT e m b

(*>) :: ConnectorT e m a -> ConnectorT e m b -> ConnectorT e m b

(<*) :: ConnectorT e m a -> ConnectorT e m b -> ConnectorT e m a

MonadIO m => MonadIO (ConnectorT e m)

Methods

liftIO :: IO a -> ConnectorT e m a

MonadThrow m => MonadThrow (ConnectorT e m)

Methods

throwM :: Exception e => e -> ConnectorT e m a

MonadCatch m => MonadCatch (ConnectorT e m)

Methods

catch :: Exception e => ConnectorT e m a -> (e -> ConnectorT e m a) -> ConnectorT e m a

MonadMask m => MonadMask (ConnectorT e m)

Methods

mask :: ((forall a. ConnectorT e m a -> ConnectorT e m a) -> ConnectorT e m b) -> ConnectorT e m b

uninterruptibleMask :: ((forall a. ConnectorT e m a -> ConnectorT e m a) -> ConnectorT e m b) -> ConnectorT e m b

MonadResource m => MonadResource (ConnectorT r m)

Methods

liftResourceT :: ResourceT IO a -> ConnectorT r m a

newtype Conn

Constructors

Conn

Fields

• _cConnectionPool :: Pool Connection

Instances

HasConn Conn

Methods

conn :: Lens' Conn Conn

cConnectionPool :: Lens' Conn (Pool Connection)

class HasConn c where

Minimal complete definition

conn

Methods

conn :: Lens' c Conn

cConnectionPool :: Lens' c (Pool Connection)

Instances

HasConn Conn

Methods

conn :: Lens' Conn Conn

cConnectionPool :: Lens' Conn (Pool Connection)

type MonadConnector e m = (MonadIO m, MonadMask m, MonadResource m, MonadReader e m, HasConn e)

data ConnInfo

Constructors

ConnInfo

Fields

• _ciDatabaseUrl :: ByteString
• _ciStripes :: Int
• _ciConnections :: Int
• _ciIdleTime :: NominalDiffTime

Instances

Eq ConnInfo

Methods

(==) :: ConnInfo -> ConnInfo -> Bool

(/=) :: ConnInfo -> ConnInfo -> Bool

Show ConnInfo

Methods

showsPrec :: Int -> ConnInfo -> ShowS

show :: ConnInfo -> String

showList :: [ConnInfo] -> ShowS

runConnectorT :: HasConn e => e -> ConnectorT e m a -> m a

newConn :: MonadIO m => ConnInfo -> m Conn

newConnInfo :: ByteString -> ConnInfo

withConnection :: MonadConnector e m => (Connection -> m a) -> m a

withTransaction :: MonadConnector e m => IO a -> m a

query :: (MonadConnector e m, ToRow q, FromRow r) => Query -> q -> m [r]

query_ :: (MonadConnector e m, FromRow r) => Query -> m [r]

execute :: (MonadConnector e m, ToRow q) => Query -> q -> m Int64

executeMany :: (MonadConnector e m, ToRow q) => Query -> [q] -> m Int64

execute_ :: MonadConnector e m => Query -> m Int64

returning :: (MonadConnector e m, ToRow q, FromRow r) => Query -> [q] -> m [r]