{-#LANGUAGE OverloadedStrings #-} {-#LANGUAGE DeriveGeneric #-} {-#LANGUAGE LambdaCase #-} {-#LANGUAGE TemplateHaskell #-} {-#LANGUAGE MultiParamTypeClasses #-} {-#LANGUAGE FlexibleContexts #-} module Database.YeshQL.SqlRow.Class where import Database.HDBC import Data.Convertible (Convertible) class ToSqlRow a where toSqlRow :: a -> [SqlValue] class FromSqlRow a where fromSqlRow :: Monad m => [SqlValue] -> m a class (ToSqlRow a, FromSqlRow a) => SqlRow a where