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Explain how to signal an error in a commit handler
author Adam Chlipala <adam@chlipala.net>
date Tue, 31 May 2011 09:14:03 -0400
parents bb8463c3b712
children
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line source
fun main () : transaction page =
  x <- source <xml>TEST</xml>;
  return <xml><body>
    <dyn signal={y <- signal x; return <xml>!{y}?</xml>}/>
    <br/>
    <a onclick={set x <xml>CHANGEUP</xml>}>Oh My</a>
  </body></xml>