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Re: using xsl:for-each-group, grouping by child nodes?

Subject: Re: using xsl:for-each-group, grouping by child nodes?
From: "G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>
Date: Sat, 04 Oct 2008 17:48:46 -0400
Re:  using xsl:for-each-group
At 2008-10-05 01:06 +1000, Eric Scheid wrote:
Sadly, it seems the tool I'm using (Filemaker Pro) doesn't like it, throwing
an error of "Unknown XSL element: for-each-group". I'm guessing it doesn't
support XSLT 2.0 functions yet, which is a bummer.

Then use XSLT 1.0 to solve the problem ... no reason to give up.

I hope the below helps.

. . . . . . . Ken

t:\ftemp>type eric.xml <RESULTSET FOUND="6"> <ROW MODID="3" RECORDID="1"> <COL><DATA>joe</DATA></COL> <COL><DATA>2</DATA></COL> <COL><DATA>pitcher</DATA></COL> <COL><DATA>ny</DATA></COL> <COL><DATA>mets</DATA></COL> </ROW> <ROW MODID="3" RECORDID="2"> <COL><DATA>mark</DATA></COL> <COL><DATA>11</DATA></COL> <COL><DATA>outfielder</DATA></COL> <COL><DATA>ny</DATA></COL> <COL><DATA>mets</DATA></COL> </ROW> <ROW MODID="3" RECORDID="3"> <COL><DATA>jane</DATA></COL> <COL><DATA>13</DATA></COL> <COL><DATA>outfielder</DATA></COL> <COL><DATA>ny</DATA></COL> <COL><DATA>cubs</DATA></COL> </ROW> <ROW MODID="3" RECORDID="4"> <COL><DATA>mike</DATA></COL> <COL><DATA>7</DATA></COL> <COL><DATA>outfielder</DATA></COL> <COL><DATA>ny</DATA></COL> <COL><DATA>mets</DATA></COL> </ROW> </RESULTSET>

t:\ftemp>type eric.xsl
<?xml version="1.0" encoding="US-ASCII"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

<xsl:output method="text"/>

<xsl:template match="/">
  <!--group first by team; using a key of two parts with an unlikely
      character in between to avoid any ambiguous concatenations-->
  <xsl:variable name="players" select="/*/ROW"/>
  <xsl:for-each select="$players">
    <xsl:if test="generate-id(.)=
      <!--found the first player for a given team-->
      <xsl:if test="generate-id(.)!=generate-id($players[1])">
      <xsl:text>&#xa;    Team: </xsl:text>
      <xsl:value-of select="concat(COL[5]/DATA,', ',COL[4]/DATA)"/>
      <xsl:variable name="team"
      <!--now group by position; reflecting plural where applicable-->
      <xsl:for-each select="$team">
        <xsl:if test="generate-id(.)=
          <xsl:text>&#xa;       </xsl:text>
          <xsl:value-of select="COL[3]/DATA"/>
          <xsl:variable name="position"
          <xsl:if test="count($position)>1">s</xsl:if>:<xsl:text/>
          <!--show all in the position-->
          <xsl:for-each select="$position">
            <xsl:text>&#xa;           </xsl:text>
            <xsl:value-of select="concat( COL[1]/DATA,', ',COL[2]/DATA )"/>

t:\ftemp>call xslt eric.xml eric.xsl eric.out

t:\ftemp>type eric.out

    Team: mets, ny
           joe, 2
           mark, 11
           mike, 7

    Team: cubs, ny
           jane, 13
t:\ftemp>rem Done!

Upcoming XSLT/XSL-FO hands-on courses:      Wellington, NZ 2009-01
Training tools: Comprehensive interactive XSLT/XPath 1.0/2.0 video
Video sample lesson:    http://www.youtube.com/watch?v=PrNjJCh7Ppg
Video course overview:  http://www.youtube.com/watch?v=VTiodiij6gE
G. Ken Holman                 mailto:gkholman@xxxxxxxxxxxxxxxxxxxx
Crane Softwrights Ltd.          http://www.CraneSoftwrights.com/s/
Male Cancer Awareness Nov'07  http://www.CraneSoftwrights.com/s/bc
Legal business disclaimers:  http://www.CraneSoftwrights.com/legal

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