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Home » Boards » Stylus Studio Developer Network » XSLT Help and Discussion » Sorting on an element that is indirectly referenced
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Ave DalSubject: Sorting on an element that is indirectly referenced
Author: Ave Dal
Date: 23 Jan 2007 06:55 PM
Originally Posted: 23 Jan 2007 06:54 PM
Hello,

I'm trying to sort some output with XSL on an attribute of a "referenced" (for lack of a better term) element. Here's my XML.

=== BEGIN MEETING.XML ===

<report>
<locations>
<location id="1">
<name>Location 1</name>
</location>
<location id="2">
<name>Location 2</name>
</location>
</locations>
<meeting>
<date>20070101</date>
<name>Beta</name>
<description>Meeting at Location 2</description>
<location-id>1</location-id>
</meeting>
<meeting>
<date>20070303</date>
<name>Alpha</name>
<description>Meeting at Location 1</description>
<location-id>2</location-id>
</meeting>
<meeting>
<date>20050606</date>
<name>Beta</name>
<description>Another Meeting at Location 1</description>
<location-id>1</location-id>
</meeting>
<meeting>
<date>20070611</date>
<name>Hotel</name>
<description>Another Meeting at Location 2</description>
<location-id>2</location-id>
</meeting>
</report>
=== END MEETING.XML ===


As you can see, each <meeting> contains a <location-id> which references a <location> element defined elsewhere in the XML data. This is done to reduce redundancy and keep the document smaller.

In my stylesheet, I need to sort meetings by their location name. Here's my XSL:


=== BEGIN MEETING-REPORT.XSL ===
<xsl:template match="/">
<html>
<body>
<xsl:for-each select=".//meeting">
<xsl:variable name="location_id" select="location-id"/> <xsl:sort select="/report/locations/location[@id=$location_id]/name"/>
<xsl:sort select="name"/>
<xsl:sort select="date"/>
<xsl:call-template name="meeting"/>
</xsl:for-each>
</body>
</html>
</xsl:template>

=== END MEETING-REPORT.XSL ===

Now this doesn't work. According to my parser, it appears that <xsl:sort> elements must come immediately <xsl:for-each> so I'm not able to declare the $location_id variable. Is there another way to accomplish what I'm trying to do?
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Tony LavinioSubject: Sorting on an element that is indirectly referenced
Author: Tony Lavinio
Date: 25 Jan 2007 06:03 PM
General XSLT questions and questions not pertaining to Stylus Studio
should be asked on the XSL-LIST run by Mulberry Technologies.
 
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