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Velocity version of following-sibling and preceding-sibling

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MrFjords

28 May, 2014 09:59 PM

Hello,

I am trying to create two buttons on a page that link to the Previous and Next page in a of the current page in an index using velocity.

With XSLT I use to be able to do this using code like the following

<xsl:when test="@current='true'">
    <xsl:if test="following-sibling::system-folder[1]">
      <a class="toolnav" style="float:right;"><xsl:attribute name="href">[system-asset]<xsl:value-of select="following-sibling::system-folder[1]/path"/>/index[/system-asset]</xsl:attribute>Next</a>
    </xsl:if>                       

    <xsl:if test="preceding-sibling::system-folder[1]">
      <a class="toolnav" style="float:right;"><xsl:attribute name="href">[system-asset]<xsl:value-of select="preceding-sibling::system-folder[1]/path"/>/index[/system-asset]</xsl:attribute>Previous</a>
    </xsl:if>

  </xsl:when>

Could someone point me in the right direction of how I could accomplish this using Velocity

Thanks

1. 1 Posted by Ryan Griffith on 29 May, 2014 12:14 PM

   

   Hi,

   I believe you can accomplish this by setting a variable to the calling page and using the XPathTool to obtain the nodes.

   When you have a moment, give the following a try for starters and let me know how it works out:

   ## Get the calling page
   #set ($asset = $_XPathTool.selectSingleNode($contentRoot, "//system-page[@current]"))
   #set ($followingSibling = $_XPathTool.selectSingleNode($asset, "following-sibling::system-folder[1]"))
   #set ($precedingSibling = $_XPathTool.selectSingleNode($asset, "preceding-sibling::system-folder[1]"))
   
   #if ($followingSibling)
       <a class="toolnav" style="float:right;" href="[system-asset]${followingSibling.getChild("path").value}/index[/system-asset]">Next</a>
   #end
   #if ($precedingSibling)
       <a class="toolnav" style="float:right;" href="[system-asset]${precedingSibling.getChild("path").value}/index[/system-asset]">Previous</a>
   #end
   

   Please let me know if you have any questions.

   Thanks!

   • Edit

2. 2 Posted by MrFjords on 29 May, 2014 09:44 PM

   

   Thank you, I was able to get what I wanted to happen based on the code you posted.

   Thanks!

   • Edit

3. 3 Posted by Ryan Griffith on 30 May, 2014 12:10 PM

   

   Not a problem at all, thank you for following up. I am glad to hear the Velocity snippet helped guide you to a solution.

   I'm going to go ahead and close this discussion, please feel free to comment or reply to re-open if you have any additional questions.

   Have a great day!

   • Edit

4. Ryan Griffith closed this discussion on 30 May, 2014 12:10 PM.