Using a custom class file in Umbraco XSLT

Question

I'm trying to reference a custom class file in XSLT code. I deployed it as a DLL file to the /Bin directory.

Keep getting this error:

System.Xml.Xsl.XslTransformException: Cannot find the script or external object that implements prefix 'urn:sso'.

CS File Declarations:

namespace SSOUtilities
{
      public class sso

XSLT Reference:

<xsl:stylesheet 
version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
xmlns:msxml="urn:schemas-microsoft-com:xslt"
xmlns:sso="urn:sso"
xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets" xmlns:umbraco.contour="urn:umbraco.contour" 
exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets umbraco.contour sso">

config/xsltExtensions.config declaration:

<ext assembly="/bin/SSOUtilities" type="SSOUtilities.sso" alias="sso" />

score 4 · Answer 1 · answered Jul 14 '10 at 21:57

4

In Umbraco 4.5 you no longer need to put the /bin/ in the config/xsltExtensions.config declaration so this may be causing your error if you are using Umbraco 4.5.

http://our.umbraco.org/wiki/about/roadmap/umbraco-45/upgrading-to-umbraco-45

answered Jul 14 '10 at 21:57

Tim

4,414
4
35
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Good to know, Tim. The version I'm current on is: 4.0.3 – JGrimm Jul 14 '10 at 22:09
So what is the new way? – Léon Pelletier Dec 02 '14 at 23:34

score 3 · Answer 2 · answered Jul 15 '10 at 08:31

Let me add another answer with a complete example of one of my extensions. The class Embed.cs:

using System.Web;
using umbraco.BusinessLogic;

namespace Omega.XsltExtensions
{
    public class Embed
    {
        public static void LogEmbed(int nodeId)
        {
            Log.Add(LogTypes.Open, new User(0), nodeId, "Embedded pano, referer: " + HttpContext.Current.Request.UrlReferrer);
        }
    }
}

This is being built as Omega.XsltExtensions.dll and copied to Umbraco's /bin directory.

In my xsltExtensions.config I've added:

<ext assembly="/bin/Omega.XsltExtensions" type="Omega.XsltExtensions.Embed" alias="Ext.Embed" />

An empty XSLT file that uses this extension looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [
  <!ENTITY nbsp "&#x00A0;">
]>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxml="urn:schemas-microsoft-com:xslt"
xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets" 
xmlns:Ext.Embed="urn:Ext.Embed"
exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets Ext.Embed ">

  <xsl:output method="xml" omit-xml-declaration="yes"/>

  <xsl:param name="currentPage"/>

  <xsl:template match="/">
      <xsl:value-of select="Ext.Embed:LogEmbed($currentPage/@id)"/>
  </xsl:template>

</xsl:stylesheet>

Hopefully you can spot any omissions in your version when you compare it to this one.

sebastiaan · Answer 3 · 2010-07-14T21:11:42.187

1

You should add "sso" to your exclude-result-prefixes as well, the should make it work.

Also, your class should inherit from ApplicationBase and I'm not sure if a static class will work:

public class sso : ApplicationBase

And that is using umbraco.BusinessLogic if I'm not mistaken.

edited Jul 14 '10 at 21:11

answered Jul 14 '10 at 20:47

sebastiaan

5,870
5
38
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Without the quotes, I hope? :) – sebastiaan Jul 14 '10 at 21:09
Hah, ya, without the quotes. Let me try the inherit you mentioned. Thanks for the help! – JGrimm Jul 14 '10 at 21:23
Removed the static and made it a public class. As for inheriting from ApplicationBase, I'm using an example which I've verified works. It does not inherit from ApplicationBase. Any other thoughts? This one is really stumping me. – JGrimm Jul 14 '10 at 21:46

score 1 · Accepted Answer · answered Jul 15 '10 at 15:26

It ended up being a syntax issue in the xsltExtensions.config

  <ext assembly="/bin/Umbraco.Forms.Core" type="Umbraco.Forms.Library" alias="umbraco.contour">
  <ext assembly="/bin/SSOUtilities" type="SSOUtilities.sso" alias="sso" />
  </ext>

Notice the closing tag which installing Contour placed in the file.

Using a custom class file in Umbraco XSLT

4 Answers4

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