| Safe Haskell | None | 
|---|---|
| Language | Haskell98 | 
Yesod.Form.Input
Description
Provides for getting input from either GET or POST params without generating HTML forms. For more information, see: http://www.yesodweb.com/book/forms#forms_kinds_of_forms.
- newtype FormInput m a = FormInput {- unFormInput :: HandlerSite m -> [Text] -> Env -> FileEnv -> m (Either DText a)
 
- runInputGet :: MonadHandler m => FormInput m a -> m a
- runInputGetResult :: MonadHandler m => FormInput m a -> m (FormResult a)
- runInputPost :: MonadHandler m => FormInput m a -> m a
- runInputPostResult :: MonadHandler m => FormInput m a -> m (FormResult a)
- ireq :: (Monad m, RenderMessage (HandlerSite m) FormMessage) => Field m a -> Text -> FormInput m a
- iopt :: Monad m => Field m a -> Text -> FormInput m (Maybe a)
Documentation
Type for a form which parses a value of type a with the base monad m
 (usually your Handler). Can can compose this using its Applicative instance.
Constructors
| FormInput | |
| Fields 
 | |
runInputGet :: MonadHandler m => FormInput m a -> m a #
Run a FormInput on the GET parameters (i.e., query string). If parsing
 fails, calls invalidArgs.
runInputGetResult :: MonadHandler m => FormInput m a -> m (FormResult a) #
Run a FormInput on the GET parameters (i.e., query string). Does not
 throw exceptions on failure.
Since 1.4.1
runInputPost :: MonadHandler m => FormInput m a -> m a #
Run a FormInput on the POST parameters (i.e., request body). If parsing
 fails, calls invalidArgs.
runInputPostResult :: MonadHandler m => FormInput m a -> m (FormResult a) #
Run a FormInput on the POST parameters (i.e., request body). Does not
 throw exceptions on failure.
Arguments
| :: (Monad m, RenderMessage (HandlerSite m) FormMessage) | |
| => Field m a | |
| -> Text | name of the field | 
| -> FormInput m a | 
Promote a Field into a FormInput, requiring that the value be present
 and valid.