adamc@1004: con meta = fn (db :: Type, widget :: Type) =>
adamc@1004:                     {Nam : string,
adamc@1004:                      Show : db -> xbody,
adamc@1004:                      Widget : nm :: Name -> xml form [] [nm = widget],
adamc@1004:                      WidgetPopulated : nm :: Name -> db -> xml form [] [nm = widget],
adamc@1004:                      Parse : widget -> db,
adamc@1004:                      Inject : sql_injectable db}
adamc@1004: 
adamc@1004: val int : string -> meta (int, string)
adamc@1004: val float : string -> meta (float, string)
adamc@1004: val string : string -> meta (string, string)
adamc@1004: val bool : string -> meta (bool, bool)