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view tests/rpcDD.ur @ 707:d8217b4cb617
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author | Adam Chlipala <adamc@hcoop.net> |
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date | Tue, 07 Apr 2009 16:14:31 -0400 |
parents | 63b0bcacd535 |
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datatype list t = Nil | OtherNil | Cons of t * list t table t : {A : int} fun main () : transaction page = let fun rows () = query (SELECT * FROM t) (fn r ls => return (Cons (r.T.A, ls))) Nil fun show ls = case ls of Nil => <xml/> | OtherNil => <xml>That's impossible!</xml> | Cons (x, ls') => <xml>{[x]}<br/>{show ls'}</xml> in s <- source Nil; return <xml><body> <button value="Get It On!" onclick={ls <- rows (); set s ls}/><br/> <br/> Current: <dyn signal={ls <- signal s; return (show ls)}/> </body></xml> end