Text.Digestive.Form.Internal.Field

Internal embedding of form fields with associated functions.

Documentation

data Field v a where

A single input field. This usually maps to a single HTML input element.

Constructors

Singleton :: a -> Field v a

Text :: Text -> Field v Text

Choice :: [(Text, [(Text, (a, v))])] -> [Int] -> Field v [(a, Int)]

Bool :: Bool -> Field v Bool

File :: Field v [FilePath]

Instances

Show (Field v a)

Methods

showsPrec :: Int -> Field v a -> ShowS

show :: Field v a -> String

showList :: [Field v a] -> ShowS

data SomeField v

Value agnostic Field

Constructors

SomeField (Field v a)

evalField

Arguments

:: Method

Get/Post

-> [FormInput]

Given input

-> Field v a

Field

-> a

Result

Evaluate a field to retrieve a value, using the given method and a list of input.

fieldMapView :: (v -> w) -> Field v a -> Field w a

Map on the error message type of a Field.