Safe Haskell	None
Language	Haskell98

Opaleye.Constant

Documentation

newtype Constant haskells columns Source

Constructors

Constant
Fields constantExplicit :: haskells -> columns

Instances

ProductProfunctor Constant Source
SumProfunctor Constant Source
Profunctor Constant Source
Default Constant Bool (Column PGBool) Source
Default Constant Double (Column PGFloat8) Source
Default Constant Int (Column PGInt4) Source
Default Constant Int64 (Column PGInt8) Source
Default Constant String (Column PGText) Source
Default Constant ByteString (Column PGJsonb) Source
Default Constant ByteString (Column PGJson) Source
Default Constant ByteString (Column PGBytea) Source
Default Constant ByteString (Column PGJsonb) Source
Default Constant ByteString (Column PGJson) Source
Default Constant ByteString (Column PGBytea) Source
Default Constant Text (Column PGText) Source
Default Constant UTCTime (Column PGTimestamptz) Source
Default Constant Value (Column PGJsonb) Source
Default Constant Value (Column PGJson) Source
Default Constant Text (Column PGText) Source
Default Constant LocalTime (Column PGTimestamp) Source
Default Constant TimeOfDay (Column PGTime) Source
Default Constant Day (Column PGDate) Source
Default Constant UUID (Column PGUuid) Source
Default Constant haskell (Column sql) => Default Constant (Maybe haskell) (Column (Nullable sql)) Source
Default Constant (CI Text) (Column PGCitext) Source
Default Constant (CI Text) (Column PGCitext) Source
Functor (Constant a) Source
Applicative (Constant a) Source

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