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  • mannaky 12 posts 60 karma points
    Sep 08, 2014 @ 09:42
    mannaky
    0

    Using external libraries in XSLT - XslTransformException [v 7.1.6]

    Hello,

    I want to use an own library in a XSLT file. However, I always get the following error when I try to save the file.

    System.Xml.Xsl.XslTransformException: Cannot find a script or an extension object associated with namespace 'urn:Ext.Library.SearchHelper'.
   at System.Xml.Xsl.Runtime.XmlQueryContext.InvokeXsltLateBoundFunction(String name, String namespaceUri, IList`1[] args)
   at (XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime)
   at Root(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime)
   at System.Xml.Xsl.XmlILCommand.Execute(Object defaultDocument, XmlResolver dataSources, XsltArgumentList argumentList, XmlWriter writer)
   at System.Xml.Xsl.XslCompiledTransform.Transform(IXPathNavigable input, XsltArgumentList arguments, TextWriter results)
   at umbraco.presentation.webservices.codeEditorSave.SaveXslt(String fileName, String oldName, String fileContents, Boolean ignoreDebugging

    My XSLT file 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:ExtSearch="urn:Ext.Library.SearchHelper" 
    xmlns:umbraco.library="urn:umbraco.library" 
    xmlns:Examine="urn:Examine" 
    exclude-result-prefixes="msxml ExtSearch umbraco.library Examine ">
    <xsl:output method="xml" omit-xml-declaration="yes"/>
    <xsl:param name="currentPage"/>   
    <xsl:template match="/">
        <xsl:for-each select="ExtSearch:Search()/descendant::node">       
            Id: <xsl:value-of select="@id"/>
         </xsl:for-each>
    </xsl:template>           
</xsl:stylesheet>

    And the class definition looks like this:

    using Examine;
using Examine.SearchCriteria;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Web;
using System.Xml.Linq;
using System.Xml.XPath;
using Umbraco.Core.Macros;

namespace Ext.Library
{
    [XsltExtension]
    public class SearchHelper
    {
        public XPathNodeIterator Search()
        {
        return GetResultsAsXml(ExamineManager.Instance.Search("", false));
        }
    }
}

    The strange thing is: When I run umbraco locally on my machine (Umbraco 7.1.6, Visual Studio 2013, ISSExpress 8.0, .NET 4.5) it is working fine. But when I run it on whe web server I get the above mentioned error (Umbraco 7.1.6, IIS 7.5.7600.16385, .NET 4.5)

    Thank you for any help!

    Regards,

    mannyk

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  • Lee Kelleher 4026 posts 15837 karma points MVP 13x admin c-trib
    Sep 08, 2014 @ 10:52
    Lee Kelleher
    0

    Hi mannyk,

    I think the method needs to be a static, try this:

     public static XPathNodeIterator Search()

    I'm not too sure why it's running ok on your local machine though?

    Cheers,
    - Lee

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  • mannaky 12 posts 60 karma points
    Sep 08, 2014 @ 11:25
    mannaky
    0

    Hello and thank you very much for your advice.

    I have changed now the method to static but still I get the same error. Again, it works on local side.

    Regards,

    mannyk

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  • Lee Kelleher 4026 posts 15837 karma points MVP 13x admin c-trib
    Sep 08, 2014 @ 11:30
    Lee Kelleher
    0

    Where is your code/class? In a compiled DLL or a file in /App_Code folder?

    (I've heard about an issue with XSLT extension methods not working properly in /App_Code for v7)

    Sorry for asking this next question... are you sure that the latest code is up on the web-server?
    I know it sounds obvious, sorry.

    Thanks,
    - Lee

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  • mannaky 12 posts 60 karma points
    Sep 08, 2014 @ 13:06
    mannaky
    0

    Hello,

    The class is in a compiled DLL in the /bin folder.

    Yes, I have also checked, that the latest version has been copied on the server.

    Regards,

    mannyk

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  • Lee Kelleher 4026 posts 15837 karma points MVP 13x admin c-trib
    Sep 08, 2014 @ 13:12
    Lee Kelleher
    0

    Thanks mannyk.

    The next thing I'd try would be to manually set the namespace for the XSLT extension class:

    [XsltExtension("my.search")]

    Then in your XSLT, change:

    xmlns:ExtSearch="urn:my.search"

    If that doesn't work, then Umbraco isn't picking up the extension class. From there, try selecting "skip error checks" and running the macro on the front-end, see if it gives you the same error.

    Cheers,
    - Lee

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  • mannaky 12 posts 60 karma points
    Sep 08, 2014 @ 13:57
    mannaky
    0

    Hello and thank you for your help.

    I have tried so (with your example "my.search") but I get the same error (of course now with the message that the namespace 'urn:my.search' cannot be found).

    I have now saved the file using the ignore error function but in the front end I get the following error: Error parsing XSLT file: \xslt\Search.xslt

    Regards,

    mannyk

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  • Lee Kelleher 4026 posts 15837 karma points MVP 13x admin c-trib
    Sep 08, 2014 @ 14:08
    Lee Kelleher
    0

    Hmmm... I think it might be a bug in Umbraco.

    There's a ticket on the issue tracker #U4-3425, about a similar issue, but it was fixed in v7.1.2. I'd suggest raising a new ticket on the issue tracker (with a reference to #U4-3425) and see if the core team can shed any light on the issue.

    Thanks,
    - Lee

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  • mannaky 12 posts 60 karma points
    Sep 08, 2014 @ 14:18
    mannaky
    0

    Okay, thank you. I will reopen this issue.

    Regards,

    mannyk

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