Login form validation with Async

[ovsyannikov vladimir]

val loginForm = Form(
  tuple(
    "email" -> email,
    "password" -> text
  ) verifying("Invalid user name or password", fields => fields match { 
      case (e, p) => User.authenticate(e,p).isDefined 
  })
)

def authenticate = Action { implicit request =>
    loginForm.bindFromRequest.fold(
      formWithErrors => BadRequest(html.login(formWithErrors)),
      user => gotoLoginSucceeded(user.get.id)
    )
  }

How can I do the same in async way(for example User.authenticate(e,p): Future[Option[User]])?
Do you planning add AsyncForm or verifying/bindFromRequest overloads?

[Johan Andren]

I'd move the actual authentication out of the form validation and do it in your action instead and use the validation only for validation of required fields etc. Something like this:

val loginForm = Form(
  tuple(
    "email" -> email,
    "password" -> text
  )
)

def authenticate = Action { implicit request =>
  loginForm.bindFromRequest.fold(
    formWithErrors => BadRequest(html.login(formWith

Errors)),
    auth => 

      Async(

        User.authenticate(auth._1, auth._2).map { maybeUser =>

          maybeUser.map(user => gotoLoginSucceeded(user.get.id))

            .getOrElse( ... failed login page ...)

        }

      )
  )
}