Multi-level : for each group « XSLT stylesheet « XML

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XML » XSLT stylesheet » for each group 
Multi-level


File: Data.xml

<?xml version="1.0"?>
<staff>
  <employee name="J" department="sales" location="New York" />
  <employee name="B" department="personnel" location="Los Angeles" />
  <employee name="C" department="transport" location="New York" />
  <employee name="W" department="personnel" location="Los Angeles" />
  <employee name="M" department="sales" location="Seattle" />
</staff>



File: Transform.xslt


<?xml version="1.0"?>
<xsl:stylesheet version="2.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

  <xsl:output method="html" indent="yes" />

  <xsl:template match="staff">
    <xsl:for-each-group select="employee" group-by="@location">
      <xsl:sort select="current-grouping-key()" />
      <p class="indent0">
        <xsl:text>Location </xsl:text>
        <xsl:value-of select="current-grouping-key()" />
      </p>
      <xsl:for-each-group select="current-group()"
        group-by="@department">
        <xsl:sort select="current-grouping-key()" />
        <p class="indent1">
          <xsl:text>Location </xsl:text>
          <xsl:value-of select="current-grouping-key()" />
        </p>
        <xsl:for-each select="current-group()">
          <xsl:sort select="@name" />
          <p class="indent2">
            <xsl:text>Location </xsl:text>
            <xsl:value-of select="@name" />
          </p>
        </xsl:for-each>
      </xsl:for-each-group>
    </xsl:for-each-group>
  </xsl:template>
</xsl:stylesheet>

Output:

<p class="indent0">Location Los Angeles</p>
<p class="indent1">Location personnel</p>
<p class="indent2">Location B</p>
<p class="indent2">Location W</p>
<p class="indent0">Location New York</p>
<p class="indent1">Location sales</p>
<p class="indent2">Location J</p>
<p class="indent1">Location transport</p>
<p class="indent2">Location C</p>
<p class="indent0">Location Seattle</p>
<p class="indent1">Location sales</p>
<p class="indent2">Location M</p>

 
Related examples in the same category
1. use for-each-group
2. for-each-group select="current-group() except ."
3. Composite
4. Alternate group
5. Group by department
6. Sort by department
7. for-each-group select="html/body/*" group-adjacent
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