Reputation: 157
I have the following XML data. I have no control on the structure of this data, this is how I'm receiving it.
<data>
<row>
<value name="CustomerID">1</value>
<value name="CustomerName">Joe</value>
<value name="Cost">22.50</value>
</row>
<row>
<value name="CustomerID">1</value>
<value name="CustomerName">Joe</value>
<value name="Cost">55.50</value>
</row>
<row>
<value name="CustomerID">2</value>
<value name="CustomerName">Jane</value>
<value name="Cost">10</value>
</row>
<row>
<value name="CustomerID">2</value>
<value name="CustomerName">Jane</value>
<value name="Cost">13.50</value>
</row>
<row>
<value name="CustomerID">3</value>
<value name="CustomerName">Jim</value>
<value name="Cost">50</value>
</row>
</data>
I need to use XSLT v1.0 to display the data grouped by Customer ID and with a total for each customer. I've tried searching many articles but nothing has this kind of strange structure.
Upvotes: 1
Views: 219
Reputation: 56222
Use:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
<xsl:key name="k" match="row" use="value[@name = 'CustomerID']"/>
<xsl:template match="data">
<xsl:copy>
<xsl:apply-templates select="row[generate-id(.) = generate-id(key('k', value[@name = 'CustomerID']))]"/>
</xsl:copy>
</xsl:template>
<xsl:template match="row">
<xsl:copy>
<xsl:copy-of select="value[@name = 'CustomerID']"/>
<xsl:copy-of select="value[@name = 'CustomerName']"/>
<sum>
<xsl:value-of select="sum(key('k', value[@name = 'CustomerID'])/value[@name = 'Cost'])"/>
</sum>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
Output:
<data>
<row>
<value name="CustomerID">1</value>
<value name="CustomerName">Joe</value>
<sum>78</sum>
</row>
<row>
<value name="CustomerID">2</value>
<value name="CustomerName">Jane</value>
<sum>23.5</sum>
</row>
<row>
<value name="CustomerID">3</value>
<value name="CustomerName">Jim</value>
<sum>50</sum>
</row>
</data>
Upvotes: 3