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sequence s
table t : { Id : int, Title : string, Chan : option (channel string) }
fun list () =
queryX (SELECT * FROM t)
(fn r => <xml><tr>
<td>{[r.T.Id]}</td> <td>{[r.T.Title]}</td>
<td><a link={delete r.T.Id}>[delete]</a></td>
</tr></xml>)
and delete id =
dml (DELETE FROM t WHERE Id = {[id]});
main ()
and main () : transaction page =
let
fun create r =
id <- nextval s;
dml (INSERT INTO t (Id, Title, Chan) VALUES ({[id]}, {[r.Title]}, NULL));
main ()
in
ls <- list ();
return <xml><body>
<table>
<tr> <th>ID</th> <th>Title</th> </tr>
{ls}
</table>
<h1>New Channel</h1>
<form>
Title: <textbox{#Title}/><br/>
<submit action={create}/>
</form>
</body></xml>
end
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