Hi,
I tried using the same xdmp:value($exp) without quotes but gives an error:
<error-info>
<code>500</code>
<error-type>server</error-type>
<message>Internal Server Error | err:XPST0003 - Unexpected token</message>
<description>XDMP-UNEXPECTED: (err:XPST0003) Unexpected token syntax error,
unexpected $end in at line number 1</description>
</error-info>
Thanks
Pragya
________________________________________
From: [email protected]
<[email protected]> on behalf of Florent Georges
<[email protected]>
Sent: Tuesday, June 16, 2015 3:02 PM
To: MarkLogic Developer Discussion
Subject: Re: [MarkLogic Dev General] xdmp:value query
Hi,
I haven't looked in detail (especially whether it is a good idea in
this case to use dynamic evaluation of XQuery, or if you should rather
use something else), but it looks like you want to evaluate the
expression, not resolve a variable name.
Evaluating the string literal "$exp" gives you the value of the
variable. Evaluating $exp, means evaluating the value of the variable
as an expression (the value of the variable is a string, "0000049*3").
So just use xdmp:value($exp), with no quote characters.
Regards,
--
Florent Georges
http://fgeorges.org/
http://h2oconsulting.be/
On 16 June 2015 at 11:24, Kapoor, Pragya wrote:
> Hi,
>
>
> I am running the below query :
>
>
> declare namespace MET100 = 'MET100' ;
>
>
> let $output :=
> <user><userId>test1</userId><sessionId>54C76A855C23EF8AC5AFBC59C8D4C40A</sessionId>
>
> <outputs>
>
> <output><columnAlias>CollectionNo</columnAlias>
>
> <functions type="decimal">CollectionNo*3</functions></output>
>
> </outputs></user>
>
>
> let $functions := fn:data($output//functions)
>
> let $docId := '/docs/BONY_0000049_ISDA-CSA-GB95_6749.xml'
>
> let $type := ($output//functions/@type)
>
> let $doc := fn:doc($docId)
>
> let $alias := ($output//columnAlias/text())
>
> let $ns := "MET100"
>
> let $elem := "CollectionNo"
>
> let $element := fn:concat($ns,":",$elem)
>
> let $result :=($doc//*[name() = $element])/text()
>
> let $result :=
>
> if($type eq 'string') then
>
> xdmp:value(xdmp:quote(fn:replace($functions,$alias,fn:concat("'",$result,"'"))))
>
> else
>
> let $exp := (fn:replace($functions,$alias,$result[1]))
>
> return xdmp:value("$exp")
>
> return $result
>
>
> actual output is : 0000049*3
>
> Expected Output is : 147
>
>
> But Since I am using let $exp := (fn:replace($functions,$alias,$result[1]))
> which returns a string expression, which is causing problem.
>
>
> How can I solve this ?
>
>
> Thanks
>
> Pragya
>
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