[xquery-talk] How to add an optional attiribute to
aconstructed XML tag with XQuery ?
Michael Kay
mike at saxonica.com
Tue Feb 17 09:18:33 PST 2009
Or a more precise equivalent would be
<Company>
{$comp/(@type, @primary, @name)}
<Detail/>
</Company>
If you really need to create a new attribute conditionally, rather than
copying an existing one, then you have to use a computed attribute
constructor
if (condition) then
attribute {...} {...}
else ()
Michael Kay
http://www.saxonica.com/
_____
From: talk-bounces at x-query.com [mailto:talk-bounces at x-query.com] On Behalf
Of Geert Josten
Sent: 17 February 2009 06:34
To: Diraviam H; talk at x-query.com
Subject: RE: [xquery-talk] How to add an optional attiribute to aconstructed
XML tag with XQuery ?
Hi,
How about something like this:
let $x:= doc("source.xml")
for $comp in $x/Unit/Data/Organization
return
<Unit>
<Company>
{$comp/@*}
</Detail></Detail>
</Company>
</Unit>
You can also name the attributes explicitly, wrap them in an if and a for
loop if you like. But make sure to insert attributes before anything else
within the contents of the Company element.
I am not sure what $org was referring to, but if you simply want to copy the
attributes of the Organization element to the Company element, then the
above should work.
Kind regards,
Geert
Drs. G.P.H. Josten
Consultant
<http://www.daidalos.nl/>
Daidalos BV
Source of Innovation
Hoekeindsehof 1-4
2665 JZ Bleiswijk
Tel.: +31 (0) 10 850 1200
Fax: +31 (0) 10 850 1199
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From: talk-bounces at x-query.com [mailto:talk-bounces at x-query.com] On Behalf
Of Diraviam H
Sent: dinsdag 17 februari 2009 7:15
To: talk at x-query.com
Subject: [xquery-talk] How to add an optional attiribute to a constructed
XML tag with XQuery ?
I am creating an XML file say A, from another xml file B. The content of
file B will be changing and some tags can have optional attributes. I want
to include the attribute in the constructed XML file tag(s) through Xquery,
only when it is available in source file B.
I am trying something like this, where the attribute "name" is optional in
source.
let $x:= doc("source.xml")
for $comp in $x/Unit/Data/Organization
return
<Unit>
<Company type="{$comp/@type}" primary="{$org/@primary}"
{if(fn:exists($x/Unit/Data/Organization/@name)) then name="{$org/@name}"
else "" } >
</Detail></Detail>
</Company>
</Unit>
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