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view demo/increment.ur @ 1168:69f1d39d3f2d

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Use COALESCE to hide NULL results of aggregate functions; fix bug with improper ordering of query result columns
author Adam Chlipala <adamc@hcoop.net>
date Thu, 25 Feb 2010 14:55:35 -0500
parents ed06e25c70ef
children e6bc6bbd7a32
line wrap: on
line source
sequence seq

fun increment () = nextval seq

fun main () =
    src <- source 0;
    return <xml><body>
      <dyn signal={n <- signal src; return <xml>{[n]}</xml>}/>
      <button value="Update" onclick={n <- rpc (increment ()); set src n}/>
    </body></xml>