Opaleye.Internal.RunQuery

Documentation

data QueryRunnerColumn coltype haskell

Constructors

QueryRunnerColumn (Unpackspec (Column coltype) ()) (FieldParser haskell)

Instances

Default QueryRunnerColumn Double Double

Default QueryRunnerColumn Int Int

Default QueryRunnerColumn Int64 Int64

Default QueryRunnerColumn Integer Integer

Default QueryRunnerColumn String String

Default QueryRunnerColumn a b => Default QueryRunnerColumn (Nullable a) (Maybe b)

data QueryRunner columns haskells

Constructors

QueryRunner (Unpackspec columns ()) (RowParser haskells)

Instances

ProductProfunctor QueryRunner

Profunctor QueryRunner

Default QueryRunnerColumn a b => Default QueryRunner (Column a) b

Functor (QueryRunner c)

Applicative (QueryRunner c)

fieldQueryRunnerColumn :: FromField haskell => QueryRunnerColumn coltype haskell

queryRunner :: QueryRunnerColumn a b -> QueryRunner (Column a) b

queryRunnerColumnNullable :: QueryRunnerColumn a b -> QueryRunnerColumn (Nullable a) (Maybe b)