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In simplifying constructors for error messages, unfold constructor synonyms from modules
author Adam Chlipala <adam@chlipala.net>
date Wed, 02 May 2012 08:23:30 -0400
parents 6f046b4bad24
children
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table t : { A : int }

fun sortEm b =
    queryX1 (SELECT * FROM t ORDER BY t.A {if b then sql_asc else sql_desc})
    (fn r => <xml>{[r.A]}; </xml>)

fun main () : transaction page = return <xml><body>
  <a link={sortEm True}>Ascending</a><br/>
  <a link={sortEm False}>Descending</a>
</body></xml>