Question

I have a following XML structure that I need to transform:

<recordset rowCount="68" fieldNames="ITEM,ECL,LEAD_TIME" type="**coldfusion.sql.QueryTable**">
<field name="ITEM">
 <string>ITEM_A</string>
 <string>ITEM_B</string>
 <string>ITEM_C</string>
</field>
<field name="REV">
 <string>A</string>
 <string>B</string>
 <string>C</string>
</field>
<field name="LEAD_TIME">
 <string>10</string>
 <string>15</string>
 <string>25</string>
</field>
</recordset>

Into:

<records>
<item_line>
 <item>ITEM_A</item>
 <rev>A</rev>
 <lead_time>10</lead_time>
</item_line>
<item_line>
 <item>ITEM_B</item>
 <rev>B</rev>
 <lead_time>15</lead_time>
</item_line>
<item_line>
 <item>ITEM_C</item>
 <rev>C</rev>
 <lead_time>25</lead_time>
</item_line>
</records>

My knowledge of XSLT is very limited…

Thank you in advance!

Answer 1

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

  <xsl:output method="xml" indent="yes" omit-xml-declaration="yes" />

  <xsl:template match="/recordset">
    <records>
      <xsl:apply-templates select="field[@name='ITEM']/string" />
    </records>
  </xsl:template>

  <xsl:template match="field[@name='ITEM']/string">
    <xsl:variable name="currpos" select="position()" />

    <item_line>
      <item>
        <xsl:value-of select="." />
      </item>
      <rev>
        <xsl:value-of select="/recordset/field[@name='REV']/string[$currpos]" />
      </rev>
      <lead_time>
        <xsl:value-of select="/recordset/field[@name='LEAD_TIME']/string[$currpos]" />
      </lead_time>
    </item_line>
  </xsl:template>

</xsl:stylesheet>

A slightly more readable and probably marginally faster version would be using an <xsl:key>:

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

  <xsl:output method="xml" indent="yes" omit-xml-declaration="yes" />

  <xsl:key name="k_field" match="recordset/field" use="@name" />

  <xsl:template match="/">
    <records>
      <xsl:apply-templates select="key('k_field', 'ITEM')/string" />
    </records>
  </xsl:template>

  <xsl:template match="field[@name='ITEM']/string">
    <xsl:variable name="currpos" select="position()" />

    <item_line>
      <item>
        <xsl:value-of select="." />
      </item>
      <rev>
        <xsl:value-of select="key('k_field', 'REV')/string[$currpos]" />
      </rev>
      <lead_time>
        <xsl:value-of select="key('k_field', 'LEAD_TIME')/string[$currpos]" />
      </lead_time>
    </item_line>
  </xsl:template>

</xsl:stylesheet>