RE: Complex grouping problem, please help.

The approach I am taking with this has been to for-each the first
occurrence of every tutor in Grade node.  I then for-each a key matching
all Students to based on each tutor.  I keep trying to only limit the
key to the current grade, but I don't think it is working.

<xsl:key name="students-by-tutor" match="Grade/Students/Name"
use="Tutor"/>

<xsl:template match="School">
	<xsl:for-each select="Grade">
		<xsl:apply-templates select="."/>
	</xsl:for-each>
</xsl:template>


<xsl:template match="Grade">
	<xsl:for-each select="Students/Student/Name[Tutor[not(. =
preceding::Tutor)]]">
		<xsl:sort select="Tutor"/>
		<xsl:variable name="gradeName"
select="ancestor::Grade/Name"/>
		<xsl:for-each select=key('students-by-tutor ',
Tutor)[ancestor::Grade/Name = $gradeName]>
			<xsl:apply-templates select="."/>
		</xsl:for-each>
	</xsl:for each>
</xsl:template>

What am I missing?  The key doesn't seem to only return students in the
given grade. It returns all students in all grades for the tutor.


 --- kakridge@xxxxxxxxxxxxx wrote: > I have been
having a problem with grouping.  If I
> have:
> 
> <School>
> 	<Grade>
> 		<Students>
> 			<Student>
> 				<Name>Bob</Name>
> 				<Tutor>Mary Smith</Tutor>
> 			</Student>
> 			<Student>
> 				<Name>Joe</Name>
> 				<Tutor>Mike Smith</Tutor>
> 			</Student>
> 		<Students>
> 		<Name>Kindergarten</Name>
> 	</Grade>
> 	<Grade>
> 		<Students>
> 			<Student>
> 				<Name>Ted</Name>
> 				<Tutor>Mary Smith</Tutor>
> 			</Student>
> 			<Student>
> 				<Name>Sammy</Name>
> 				<Tutor>Mike Smith</Tutor>
> 			</Student>
> 		</Students>
> 		<Name>First</Name>
> 	</Grade>
> </School>
> 
> How can I group each grade, and within each grade,
> group all tutors with
> their students?
> 
> Something like this:
> 
> Grade: Kindergarten
> Tutor: Mary Smith
> Students: Bob,.,.,.
> 
> Grade: Kindergarten
> Tutor: Mike Smith
> Students: Joe,.,.,.
> 
> Grade: First
> Tutor: Mary Smith
> Students: Ted,.,.,.
> 
> etc.
> 
> Thanks



 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list