Mercurial > urweb
view tests/rpcN.ur @ 1437:493e087f5479
Exit periodic loop if a ROLLBACK fails, to avoid infinite looping when the database server is brought down
author | Adam Chlipala <adam@chlipala.net> |
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date | Fri, 18 Mar 2011 09:12:55 -0400 |
parents | 5891f47d7cff |
children |
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table t : { A : int } fun main () : transaction page = let fun count a = r <- oneRow (SELECT COUNT( * ) AS N FROM t WHERE t.A = {[a]}); return r.N in s <- source 0; return <xml><body> <button value="Get It On!" onclick={n <- count 3; set s n}/><br/> <br/> Current: <dyn signal={n <- signal s; return <xml>{[n]}</xml>}/> </body></xml> end