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con colMeta = fn (db :: Type, state :: Type) =>
{Nam : string,
Show : db -> xbody,
Inject : sql_injectable db,
NewState : transaction state,
Widget : state -> xbody,
ReadState : state -> transaction db}
con colsMeta = fn cols :: {(Type * Type)} => $(map colMeta cols)
val int : string -> colMeta (int, source string)
val float : string -> colMeta (float, source string)
val string : string -> colMeta (string, source string)
functor Make(M : sig
con cols :: {(Type * Type)}
constraint [Id] ~ cols
val fl : folder cols
table tab : ([Id = int] ++ map fst cols)
val title : string
val cols : colsMeta cols
end) : sig
val main : unit -> transaction page
end
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