{-# OPTIONS_GHC -fno-warn-orphans #-} {-# LANGUAGE UndecidableInstances #-} module Database.Persist.Class.Instances ( ) where import ClassyPrelude import Database.Persist.Class import Database.Persist.Types.Instances () import Data.Binary (Binary) import qualified Data.Binary as Binary instance PersistEntity record => Hashable (Key record) where hashWithSalt s = hashWithSalt s . toPersistValue instance PersistEntity record => Binary (Key record) where put = Binary.put . toPersistValue putList = Binary.putList . map toPersistValue get = either (fail . unpack) return . fromPersistValue =<< Binary.get