snap-extras-0.3: A collection of useful helpers and utilities for Snap web applications.
Snap.Extras.FormUtils
Contents
Synopsis
maybeTrans :: (Eq a, IsString a) => a -> Result v (Maybe a)Source
Transform to Nothing if field is empty string
readMayTrans :: Read a => Text -> Result v (Maybe a)Source
Maybe read into target value
readTrans :: (Read a, IsString v) => Text -> Result v aSource
Read into target value