Menu items parsed twice

Here should go questions about transforming XML with XSLT and FOP.
Tiramma
Posts: 7
Location: Oslo, Norway

Menu items parsed twice

Mon Apr 18, 2005 10:43 pm

I have a problem with a bit of XSLT that is parsing a submenu twice. What I need is this:

Code: Select all

<ul id="meny">
<li><a href="">Menu 1</a></li>
<li><a href="">Menu 2</a>
    <ul>
    <li><a href="">Menu 2-1</a></li>
    <li><a href="">Menu 2-2</a></li>
    </ul>
    </li>
<li><a href="">Menu 3</a></li>
</ul>


But what I'm actually getting is this:

Code: Select all

<ul id="meny">
<li><a href="">Menu 1</a></li>
<li><a href="">Menu 2</a>
    <ul>
    <li><a href="">Menu 2-1</a></li>
    <li><a href="">Menu 2-2</a></li>
    </ul>
    </li>
<li><a href="">Menu 2-1</a></li>
<li><a href="">Menu 2-2</a></li>
<li><a href="">Menu 3</a></li>
</ul>


You can see the XSLT below -- I think the problem is in the very last xsl:template, but sure I am not ... I'd appreciate your help! :)

Code: Select all

<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="html" indent="yes" encoding="ISO-8859-1"/>

<!--
==========================================================================
Start menu templates, be careful when modifying
==========================================================================
 -->
<xsl:param name="PATH">
  <xsl:call-template name="TRACE_FOLDER_TO_ROOT">
    <!-- Specify id below to tell script what folder ID to use as basis for menu location -->
    <xsl:with-param name="id" select="(//ARTICLES/ACTION/FOLDER_CONTENTS/PARENT/FOLDER/ID|//ARTICLES/ACTION/ARTICLE/FOLDER_ID)[1]"/>
  </xsl:call-template>
</xsl:param>

<xsl:template name="TRACE_FOLDER_TO_ROOT">
<!-- Trace current folder ID to top folder -->
<xsl:param name="id"/>
<xsl:param name="str"/>
<xsl:variable name="parent" select="//ARTICLES//FOLDERS/FOLDER[ID=$id]/PARENT"/>
<xsl:variable name="newstr" select="concat($str, ',', $id, ',')"/>
<xsl:choose>
  <xsl:when test="$parent and //ARTICLES//FOLDERS/FOLDER[ID=$parent]">
  <!-- Recurse -->
    <xsl:call-template name="TRACE_FOLDER_TO_ROOT">
      <xsl:with-param name="id" select="$parent"/>
      <xsl:with-param name="str" select="$newstr"/>
    </xsl:call-template>
  </xsl:when>
  <xsl:otherwise>
  <!-- We're at top -->
    <xsl:value-of select="$newstr"/>
  </xsl:otherwise>
</xsl:choose>
</xsl:template>

<xsl:template match="FOLDERS/FOLDER" mode="MENU">
<xsl:if test="not(PARENT) or contains($PATH, concat(',', PARENT, ','))">
  <!-- We're either at root or have a parent in path -->
  <xsl:apply-templates select="." mode="WRITE"/>
</xsl:if>
<xsl:if test="contains($PATH, concat(',', ID, ','))">
  <!-- We're a parent in path -->
  <xsl:variable name="myID" select="ID"/>
  <xsl:apply-templates select="../FOLDER[PARENT=$myID]" mode="MENU"/>
</xsl:if>
</xsl:template>

<!--
==========================================================================
End menu templates
==========================================================================
 -->

<!-- Override this to implement own content -->
<xsl:template name="MENU">
  <ul id="meny">
  <xsl:apply-templates select="//FOLDERS/FOLDER[DEPTH=1]" mode="MENU"/>
  </ul>
</xsl:template>

  <xsl:template match="FOLDERS/FOLDER[DEPTH=1]" mode="WRITE">
  <li><a href="{URL}"><xsl:value-of select="NAME"/></a>
    <xsl:if test="../*[PARENT = current()/ID] and contains($PATH, concat(',', ID, ','))">
      <ul>
      <xsl:apply-templates select="//FOLDERS/FOLDER[DEPTH=2]" mode="MENU"/>
      </ul>
    </xsl:if>
  </li>
  </xsl:template>

<xsl:template match="FOLDERS/FOLDER[DEPTH=2]" mode="WRITE">
<li><a href="{URL}"><xsl:value-of select="NAME"/></a></li>
</xsl:template>

</xsl:stylesheet>
The knuckles! The horrible knuckles!
george
Site Admin
Posts: 2100

Thu Apr 21, 2005 11:54 am

Hi,

Can you post also your input XML?
the procedure to find out the problem should be like:

1. Switch to XSLT Debugger perspective
2. Apply the transfromation
3. Click in the output on the part that is added but you do not expect it
4. Look in the XSL and XML editors and see the selection, that represents the parts that generate that output (the context in the XML editor and the XSLT code in the XSL editor)
5. If that is not enough to understand what happens set a breakpoint before or on that XSLT line and/or XML line execution and run the debugger, that may help you understand better what is going on.

Best Regards,
George

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