[xsl] Confused using a loop...

Subject: [xsl] Confused using a loop...
From: "Austin, Darrel" <Darrel.Austin@xxxxxxxxxxxxxxxxxx>
Date: Wed, 28 Mar 2007 09:36:55 -0500
Still working on the RSS transformation...

I had everything working, except that I realized I want to only grab x
number of elements instead of all matches. To do this, I think I need to
use a recursive template with a parameter. This is what I have (I've
removed the RSS tags to make the XSL clearer) but the problem is that it
does only loop 3 times as wanted, but my 'value-of' tags in my
'createItem' template are all null/blank. I'm not sure why.

=======================================================
<xsl:variable name="numberOfItemsToList" select="3"/>

<xsl:template match="/">
	<xsl:for-each select="//menuItem[pageID =
$pageID]/descendant-or-self::menuItem">
		<xsl:sort select="substring(lastUpdate,1,4)"
order="descending" /> <!-- year  -->
		<xsl:sort select="substring(lastUpdate,6,2)"
order="descending" /> <!-- month -->
		<xsl:sort select="substring(lastUpdate,9,2)"
order="descending" /> <!-- day   -->
	</xsl:for-each>
	<xsl:call-template name="loop"/>
</xsl:template>

<xsl:template name="loop">
	<xsl:param name="i">1</xsl:param>
	<xsl:choose>
	<xsl:when test="$i &lt;= $numberOfItemsToList">
		<xsl:call-template name="createItem" />
		<xsl:call-template name="loop">
			<xsl:with-param name="i" select="$i + 1"/>
		</xsl:call-template>
	</xsl:when>
	</xsl:choose>
</xsl:template>

<xsl:template name="createItem">
	<xsl:value-of select="browserTitle" />
	Page last updated: <xsl:value-of select="lastUpdate" />
	<a
href="http://www.mncourts.gov{$linkPrefix}?page={pageID}";>http://www.mnc
ourts.gov<xsl:value-of select="$linkPrefix"/>?page=<xsl:value-of
select="pageID"/></a>
	<xsl:value-of select="lastUpdate" />
</xsl:template>
=======================================================

Sample XML:

<menuItems>
   <menuItem>
      <pageID>938</pageID>
      <browserTitle>Home Page</browserTitle>
      <lastUpdate>2006/06/12</lastUpdate>
      <menuItem>
         <pageID>998</pageID>
         <browserTitle>District Administration</browserTitle>
         <lastUpdate>2006/06/06</lastUpdate>
      </menuItem>
      <menuItem>
         <pageID>1342</pageID>
         <browserTitle>Employment</browserTitle>
         <lastUpdate>2006/07/13</lastUpdate>
      </menuItem>
   ...

-Darrel

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