How to call template for each dictionary elements? - xslt

Question

This is my xml:
<A>
<D>dd</D>
<E>ee</E>
<B>
<C>1</C>
<C>2</C>
</B>
</A>
This was my xsl. I had to call template1 and template2 only few times for the same params:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
<xsl:template match="/A">
<xsl:call-template name="items1">
<xsl:with-param name="key">aa</xsl:with-param>
<xsl:with-param name="value">bb</xsl:with-param>
</xsl:call-template>
<xsl:call-template name="items2">
<xsl:with-param name="key">aa</xsl:with-param>
<xsl:with-param name="value">bb</xsl:with-param>
</xsl:call-template>
...
</xsl:template>
<xsl:template name="template1 ">
<xsl:param name="key"/>
<xsl:param name="value"/>
<xsl:value-of select="/D"/>
<xsl:value-of select="$key"/>
<xsl:value-of select="$value"/>
...
</xsl:template>
<xsl:template name="template2">
<xsl:param name="key"/>
<xsl:param name="value"/>
<xsl:value-of select="/E"/>
<xsl:value-of select="$key"/>
<xsl:value-of select="$value"/>
...
</xsl:template>
</xsl:stylesheet>
Now, I have to call my templates about 350 times for template1 and 350 times for template2, I have many key, value pairs.
I thought to make one dictionary with key value pairs and iterate over it on template1 and template2
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
<xsl:variable name="values">
<item key="A" value="aa"/>
<item key="B" value="bb"/>
...
</xsl:variable>
<xsl:template match="/A">
<xsl:for-each select="$values">
<xsl:call-template name="items1">
<xsl:with-param name="key">aa</xsl:with-param>
<xsl:with-param name="value">bb</xsl:with-param>
</xsl:call-template>
</xsl:for-each>
<xsl:for-each select="$values">
<xsl:call-template name="items2">
<xsl:with-param name="key">aa</xsl:with-param>
<xsl:with-param name="value">bb</xsl:with-param>
</xsl:call-template>
</xsl:for-each>
...
</xsl:template>
<xsl:template name="template1 ">
<xsl:param name="key"/>
<xsl:param name="value"/>
<xsl:value-of select="/D"/>
<xsl:value-of select="$key"/>
<xsl:value-of select="$value"/>
...
</xsl:template>
<xsl:template name="template2">
<xsl:param name="key"/>
<xsl:param name="value"/>
<xsl:value-of select="/E"/>
<xsl:value-of select="$key"/>
<xsl:value-of select="$value"/>
...
</xsl:template>
</xsl:stylesheet>
My question is that Is it good idea to solve my problem. How to get root node in templates, now current node is "item". I wanted to get value od D node at my template.

Answer 1

It's difficult to answer your question without seeing the complete picture. Without it I can only guess you want to do:
<xsl:for-each select="$prodDict/item">
<xsl:call-template name="Item">
<xsl:with-param name="param1" select="#key"/>
<xsl:with-param name="param" select="#value"/>
</xsl:call-template>
</xsl:for-each>
Note that this requires XSLT 2.0 or higher.
Added:
How to get root node in templates, now current node is "item".
A convenient method is to place the root node in a global variable, so that it's accessible from anywhere. Here's a simplified example:
XML
<A>
<D>dd</D>
<E>ee</E>
<B>
<C>1</C>
<C>2</C>
</B>
</A>
XSLT 2.0
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:variable name="values">
<item key="A" value="aa"/>
<item key="B" value="bb"/>
</xsl:variable>
<xsl:variable name="xml" select="/" />
<xsl:template match="/">
<result>
<xsl:for-each select="$values/item">
<xsl:call-template name="template1">
<xsl:with-param name="param1" select="#key"/>
<xsl:with-param name="param2" select="#value"/>
</xsl:call-template>
</xsl:for-each>
</result>
</xsl:template>
<xsl:template name="template1 ">
<xsl:param name="param1"/>
<xsl:param name="param2"/>
<item>
<d>
<xsl:value-of select="$xml/A/D"/>
</d>
<key>
<xsl:value-of select="$param1"/>
</key>
<value>
<xsl:value-of select="$param2"/>
</value>
</item>
</xsl:template>
</xsl:stylesheet>
Result
<?xml version="1.0" encoding="UTF-8"?>
<result>
<item>
<d>dd</d>
<key>A</key>
<value>aa</value>
</item>
<item>
<d>dd</d>
<key>B</key>
<value>bb</value>
</item>
</result>