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sequence s
table t : { Id : int, Nam : option string, Data : blob, Desc : string }
fun save r =
if numFiles r.Data <> 1 then
error <xml>Please submit exactly one file.</xml>
else
let
val f = fileNum r.Data 0
in
id <- nextval s;
dml (INSERT INTO t (Id, Nam, Data, Desc) VALUES ({[id]}, {[fileName f]}, {[fileData f]}, {[r.Desc]}));
main ()
end
and main () = return <xml><body>
<form>
<textbox{#Desc}/>
<upload{#Data}/>
<submit action={save}/>
</form>
</body></xml>
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