opaleye-classy-0.3.1.1: Opaleye wrapped up in classy MTL attire.

Safe HaskellNone
LanguageHaskell2010

Opaleye.Classy

Documentation

data OpaleyeEnv Source

Constructors

OpaleyeEnv 

Fields

_opaleyeEnvConn :: Connection
 

Instances

class HasOpaleyeEnv c where Source

Minimal complete definition

opaleyeEnv

Methods

opaleyeEnv :: Lens' c OpaleyeEnv Source

opaleyeEnvConn :: Lens' c Connection Source

Instances

closeEnv :: OpaleyeEnv -> IO () Source

data OpaleyeError Source

Constructors

OpaleyeSqlError SqlError 
OpaleyeQueryError QueryError 
OpaleyeResultError ResultError 

Instances

class AsOpaleyeError r where Source

Minimal complete definition

Nothing

Methods

_OpaleyeError :: Prism' r OpaleyeError Source

_OpaleyeSqlError :: Prism' r SqlError Source

_OpaleyeQueryError :: Prism' r QueryError Source

_OpaleyeResultError :: Prism' r ResultError Source

Instances

type CanOpaleye c e m = (MonadReader c m, MonadError e m, MonadIO m, Applicative m, AsOpaleyeError e, HasOpaleyeEnv c) Source

liftQueryFirst :: (CanOpaleye c e m, Default QueryRunner a b, Applicative m) => Query a -> m (Maybe b) Source

liftQuery :: (CanOpaleye c e m, Default QueryRunner a b) => Query a -> m [b] Source

liftInsert :: CanOpaleye c e m => Table colW colR -> colW -> m Int64 Source

liftInsertReturning :: (CanOpaleye c e m, Default QueryRunner ret hask, Default Unpackspec ret ret) => Table colW colR -> (colR -> ret) -> colW -> m [hask] Source

liftDelete :: CanOpaleye c e m => Table colW colR -> (colR -> Column PGBool) -> m Int64 Source

liftUpdate :: CanOpaleye c e m => Table colW colR -> (colR -> colW) -> (colR -> Column PGBool) -> m Int64 Source

derivePGField :: forall a b. FromField a => (a -> b) -> Field -> Maybe ByteString -> Conversion b Source