Opaleye.SQLite.Constant

Documentation

newtype Constant haskells columns

Constructors

Constant

Fields

• constantExplicit :: haskells -> columns

Instances

Profunctor Constant

Defined in Opaleye.SQLite.Constant

Methods

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

Defined in Opaleye.SQLite.Constant

Methods

purePP :: b -> Constant a b

(****) :: Constant a (b -> c) -> Constant a b -> Constant a c

empty :: Constant () ()

(***!) :: Constant a b -> Constant a' b' -> Constant (a, a') (b, b')

SumProfunctor Constant

Defined in Opaleye.SQLite.Constant

Methods

(+++!) :: Constant a b -> Constant a' b' -> Constant (Either a a') (Either b b')

Default Constant Bool (Column SqlBool)

Defined in Opaleye.SQLite.Constant

Methods

def :: Constant Bool (Column SqlBool)

Default Constant Double (Column SqlReal)

Defined in Opaleye.SQLite.Constant

Methods

def :: Constant Double (Column SqlReal)

Default Constant Int (Column SqlInt)

Defined in Opaleye.SQLite.Constant

Methods

def :: Constant Int (Column SqlInt)

Default Constant Text (Column SqlText)

Defined in Opaleye.SQLite.Constant

Methods

def :: Constant Text (Column SqlText)

Default Constant Text (Column SqlText)

Defined in Opaleye.SQLite.Constant

Methods

def :: Constant Text (Column SqlText)

Default Constant String (Column SqlText)

Defined in Opaleye.SQLite.Constant

Methods

def :: Constant String (Column SqlText)

Default Constant haskell (Column sql) => Default Constant (Maybe haskell) (Column (Nullable sql))

Defined in Opaleye.SQLite.Constant

Methods

def :: Constant (Maybe haskell) (Column (Nullable sql))

Functor (Constant a)

Defined in Opaleye.SQLite.Constant

Methods

fmap :: (a0 -> b) -> Constant a a0 -> Constant a b

(<$) :: a0 -> Constant a b -> Constant a a0

Applicative (Constant a)

Defined in Opaleye.SQLite.Constant

Methods

pure :: a0 -> Constant a a0

(<*>) :: Constant a (a0 -> b) -> Constant a a0 -> Constant a b

liftA2 :: (a0 -> b -> c) -> Constant a a0 -> Constant a b -> Constant a c

(*>) :: Constant a a0 -> Constant a b -> Constant a b

(<*) :: Constant a a0 -> Constant a b -> Constant a a0

constant :: Default Constant haskells columns => haskells -> columns