Unsubscribe redo

gistfile1.scala

object Unsubscribe {
  
  /* A menu for Lift's Sitemap which maps /unsubscribe/{uuid} to two
     functions: 1) given a uuid, lookup a Subscription instance
     2) given a Subscription instance, create the link address... */
  val menu = Menu.param[Subscription]("Unsubscribed", "Unsubscribed",
    uuid => Subscription.find(By(Subscription.uuid, uuid)),
    s => s.uuid ) / "unsubscribed" >> Hidden
  
  /* The Loc(ation) part of the menu is what we're going to work with... */
  lazy val loc: Loc[Subscription] = menu.toLoc
  
  /* Turn HTML element with id="undo" into a link, by deleting the current record and
    creating a link that when clicked will re-create the subscription in the database... */
  def render = "#undo" #> loc.currentValue.map { s =>
    s.delete_!
    SHtml.link("/resubscribed", () => s.duplicate, Text("undo") )
  } 

  // the duplicate method copies the fields of s into a new DB row.
    
}