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Topic  
Postnext
Nathan LugertSubject: Double Grouping
Author: Nathan Lugert
Date: 22 Feb 2006 10:26 AM
Ok, heres the problem:

I need to transform the following XML file into batches by ship method and then into groups of 3.

<DetailList>
<details>
<name>Bob</name>
<address>Your House</address>
<merchant>Home Depot</merchant>
<productValue>50.00</productValue>
<shipMethod>RUSH</shipMethod>
</details>
<details>
<name>Jim</name>
<address>Your House</address>
<merchant>Home Depot</merchant>
<productValue>50.00</productValue>
<shipMethod>UPS</shipMethod>
</details>
......etc.
</DetailList>

I can group it by ship method with
<xsl:template match="/DetailList">
<Batches>
<xsl:for-each-group select="details" group-by="shipMethod">
<Batch id="{current-grouping-key()}">
<xsl:apply-templates select="current-group()"/>
</Batch>
</xsl:for-each-group>
</Batches>
</xsl:template>

<xsl:template match="*">
<xsl:copy-of select="."/>
</xsl:template>

And I can also group into groups of 3 with:

<xsl:param name="max" select="3"/>

<xsl:template match="/ALGGiftCard" name="number">
<BatchList>
<xsl:for-each select="details[position() mod $max = 1]">
<Batch>
<xsl:for-each select=". | following-sibling::details[position() &lt; $max]">
<xsl:call-template name="copyAll"/>
</xsl:for-each>
</Batch>
</xsl:for-each>
</BatchList>
</xsl:template>

<xsl:template name="copyAll" match="*">
<xsl:copy-of select="."/>
</xsl:template>

But I am at a lost when trying to combine them together. The resulting XML file needs to look something like:

<Batch id="RUSH_1">
<details>
<name>Bob</name>
<address>Your House</address>
<merchant>Home Depot</merchant>
<productValue>50.00</productValue>
<shipMethod>RUSH</shipMethod>
</details>
<details>
<name>Larry</name>
<address>Your House</address>
<merchant>Lowes</merchant>
<productValue>20.00</productValue>
<shipMethod>RUSH</shipMethod>
</details>
<details>
<name>Pappy</name>
<address>Your House</address>
<merchant>KMart</merchant>
<productValue>150,000.00</productValue>
<shipMethod>RUSH</shipMethod>
</details>
</Batch>
<Batch id="RUSH_2">
<details>
<name>Jim</name>
<address>Your House</address>
<merchant>Home Depot</merchant>
<productValue>50.00</productValue>
<shipMethod>RUSH</shipMethod>
</details>
<details>
<name>Ken</name>
<address>Your House</address>
<merchant>Lowes</merchant>
<productValue>20.00</productValue>
<shipMethod>RUSH</shipMethod>
</details>
<details>
<name>Jose</name>
<address>Your House</address>
<merchant>KMart</merchant>
<productValue>150,000.00</productValue>
<shipMethod>RUSH</shipMethod>
</details>
</Batch>

Any help would be Greatly Appreciated.


Nate
Posttop
Minollo I.Subject: Double Grouping
Author: Minollo I.
Date: 23 Feb 2006 01:29 PM
Nate,
something like this may help:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:param name="max" select="3"/>
<xsl:key name="group" match="details" use="shipMethod"/>
<xsl:template match="/">
<AllBatches>
<xsl:for-each select="//details[generate-id() = generate-id(key('group', shipMethod)[1])]">
<xsl:variable name="shipMethod" select="shipMethod"/>
<Group>
<xsl:attribute name="shipMethod">
<xsl:value-of select="$shipMethod"/>
</xsl:attribute>
<xsl:for-each select="//details[shipMethod = $shipMethod and count(preceding-sibling::*[shipMethod = $shipMethod]) mod $max = 0]">
<Batch>
<xsl:attribute name="id">
<xsl:value-of select="position()"/>
</xsl:attribute>
<xsl:variable name="listPosition" select="count(preceding-sibling::*[shipMethod = $shipMethod])"/>
<xsl:for-each select="//details[shipMethod = $shipMethod]">
<xsl:if test="position() &gt; $listPosition and position() &lt;= $listPosition + $max">
<xsl:copy-of select="."/>
</xsl:if>
</xsl:for-each>
</Batch>
</xsl:for-each>
</Group>
</xsl:for-each>
</AllBatches>
</xsl:template>
</xsl:stylesheet>
   
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