Safe Haskell | None |
---|---|
Language | Haskell2010 |
Documentation
newtype Constant haskells columns Source #
Constant | |
|
Instances
Profunctor Constant Source # | |
Defined in Opaleye.SQLite.Constant dimap :: (a -> b) -> (c -> d) -> Constant b c -> Constant a d # lmap :: (a -> b) -> Constant b c -> Constant a c # rmap :: (b -> c) -> Constant a b -> Constant a c # (#.) :: forall a b c q. Coercible c b => q b c -> Constant a b -> Constant a c # (.#) :: forall a b c q. Coercible b a => Constant b c -> q a b -> Constant a c # | |
ProductProfunctor Constant Source # | |
SumProfunctor Constant Source # | |
Default Constant Bool (Column SqlBool) Source # | |
Default Constant Double (Column SqlReal) Source # | |
Default Constant Int (Column SqlInt) Source # | |
Default Constant Text (Column SqlText) Source # | |
Default Constant Text (Column SqlText) Source # | |
Default Constant String (Column SqlText) Source # | |
Default Constant haskell (Column sql) => Default Constant (Maybe haskell) (Column (Nullable sql)) Source # | |
Functor (Constant a) Source # | |
Applicative (Constant a) Source # | |
Defined in Opaleye.SQLite.Constant |