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Italo Giovani Stefani

Subject: Creating duplicated KEY
Author: Italo Giovani Stefani
Date: 27 Oct 2006 10:46 AM
Originally Posted: 27 Oct 2006 10:44 AM

Hi, I have the following XSLT where I create anew element called 'action-declaration', with the name as key

<xsl:key name="keyAction" match="action-declaration" use="@name"/>

<xsl:if test="$actv-i and not(key('keyAction',$actv-i))">
<xsl:element name="action-declaration">
<xsl:attribute name="name">
<xsl:value-of select="$actv-i"/>
</xsl:attribute>
</xsl:element>
</xsl:if>

Thi add new action-declaration in a <actions> element. Everything goes well, if there already is an action with the same name the XSLT doesn't create another, but this code is inside a xsl:for-each where I get new actions names from another XML. If tehre is duplicated name in this 'list' the code duplicate the action name (the key).

Some advice??

Thanks.

James Durning

Subject: Creating duplicated KEY
Author: James Durning
Date: 27 Oct 2006 01:51 PM

Problem of uniqueness of new keys:
I suggest using a technique called Muenchian grouping: (http://www.jenitennison.com/xslt/grouping/muenchian.html) which allows you to get each of the unique values for the new action-declarations.

Would need to see your code to customize it, but it'd look someone like this:
<xsl:key name="newActions" match="newAction" use="@name"/>

<xsl:for-each select="newAction[count(. | key('newActions', @name)[1]) = 1]">
<xsl:if test="$actv-i and not(key('keyAction',$actv-i))">

In particular, the for-each loop and the creation of the variable $actv-i would affect the solution.

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