The GetMedia library function needs an integer as input, and you have to validate that it's not empty before.

Wrap you function in an if-statement

<xsl:if test="$currentPage/ancestor-or-self::node [@nodeTypeAlias = 'Blog']//data [@alias='bannerImage'] != ''"/>

...

</xsl:if>

>Tommy

Hey Tommy,

Thanks for the quick response.

If I ignore the image I want added for a minute and use this code

        <xsl:if test="$currentPage/ancestor-or-self::node [@nodeTypeAlias = 'Blog']//data [@alias='bannerImage'] != ''">
            <p>This is working</p>
        </xsl:if>

I get a lovely

Error parsing XSLT file: \xslt\HeaderImage.xslt

I do agree with you that I should be making sure that there is a value and wrapping it in an if statement but the statement I am using to call the images still returns that error if it is in the macro. I would understand if I was returning a wrong value but I'm not...it's giving me an error <<see above>>.

Could you post the full xslt ?

Sure...

<?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:autofolders.library="urn:autofolders.library" xmlns:tagsLib="urn:tagsLib" xmlns:BlogLibrary="urn:BlogLibrary" xmlns:fmautolink="urn:fmautolink" 
    exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets autofolders.library tagsLib BlogLibrary fmautolink ">


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

<xsl:param name="currentPage"/>

<xsl:template match="/">

<!-- start writing XSLT -->

    <xsl:if test="$currentPage/data [@alias='bannerImage'] != ''"> 
            <img alt="{$currentPage/@nodeName}">
              <xsl:attribute name="src">
        <xsl:if test="$currentPage/ancestor-or-self::node [@nodeTypeAlias = 'Blog']//data [@alias='bannerImage'] != ''">
            <xsl:value-of select="umbraco.library:GetMedia($currentPage/ancestor-or-self::node [@nodeTypeAlias = 'Blog']//data [@alias='bannerImage'] , 'false')/data [@alias = 'umbracoFile']" /> 
        </xsl:if>
              </xsl:attribute>    
            </img>
         </xsl:if>

</xsl:template>

</xsl:stylesheet>

When do you get the error - when saving or on the page when using it?

Hi Andrew,

You are so close... the parsing error is due to the XPath syntax you used.  The double-slash (//data) would return a node-set, as opposed to a string-value.  Best bet would be to take a step back and work through the data you need.

<!-- assign the root blog node to a variable-->
<xsl:variable name="blog" select="$currentPage/ancestor-or-self::node[@nodeTypeAlias = 'Blog']" />

<!-- check if the blog node has a data element for 'banner image' -->
<xsl:if test="count($blog/data[@alias='bannerImage']) &gt; 0 and $blog/data[@alias='bannerImage'] != ''">

    <!-- assign the GetMedia to a variable -->
    <xsl:variable name="media" select="umbraco.library:GetMedia($blog/data[@alias='bannerImage'], 0)" />

    <!-- check that the media contains the data -->
    <xsl:if test="count($media/data[@alias='umbracoFile']) &gt; 0">

        <!-- do whatever you want to do here -->
        <xsl:value-of select="$media/data[@alias='umbracoFile']" />

    </xsl:if>

</xsl:if>

If you want to read up a little more about GetMedia, I wrote a blog post about it a while ago:

http://blog.leekelleher.com/2009/11/30/how-to-use-umbraco-library-getmedia-in-xslt/

Cheers, Lee.

Hmmm, odd. I'm not sure what I did but the error is gone...but its still not behaving properly. Thanks for your help so far. Now I'm back to the original issue. When I'm at the top level of the blog, the iamge shows up. The minutes that I go a node deeper, the image is gone, and I figured by using this code to grab the ancestor-or-self and look for the blog node type that I should have been able to get this image for all nodes below the blog.

The nodes are set up like this

root

--blog @bannerImage

----blog post (these nodes don't find that image)

----blog post

--blog @bannerImage

----blog post

----blogpost

@lee good catch but that still isn't the issue. I changed that out but oddly enough it grabs the image on the self node but not if it is one of the post nodes.

The frustration has been whatever issue is holding me up with this issue is the same pathing issue that is catching me with several macros so I must be missing some sort of important concept.

do you get any img tag at all in your blog post? I assume your blog post nodes are of some other type than Blog.

@Tommy I do not get any images unless they were part of the post. Any images (blog roll, header graphic, etc.) do not show up

You are correct about it only working for the blog nodes. As a side note, if I remove that <xsl:if part, thats when I get an error while saving. It still works though on the page.

But if you use your original source code the outer if-statement will only work for the blog nodes, right?

OOOOOOOOO wow. I get what you are saying. Yes you are correct...but unsure of my way around that

Use Lee's code would probably work- he defines the right path as a variable used in testing, getmedia etc.

Duhhh.

<?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:autofolders.library="urn:autofolders.library" xmlns:tagsLib="urn:tagsLib" xmlns:BlogLibrary="urn:BlogLibrary" xmlns:fmautolink="urn:fmautolink" 
    exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets autofolders.library tagsLib BlogLibrary fmautolink ">


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

<xsl:param name="currentPage"/>

<xsl:template match="/">

<!-- start writing XSLT -->

    <xsl:if test="$currentPage/ancestor-or-self::node [@nodeTypeAlias = 'Blog']/data [@alias='bannerImage'] != ''"> 
            <img alt="{$currentPage/@nodeName}">
              <xsl:attribute name="src">

            <xsl:value-of select="umbraco.library:GetMedia($currentPage/ancestor-or-self::node [@nodeTypeAlias = 'Blog']/data [@alias='bannerImage'] , 'false')/data [@alias = 'umbracoFile']" /> 

              </xsl:attribute>    
            </img>
         </xsl:if>

</xsl:template>

</xsl:stylesheet>

Thank you SOOOOO much for your help

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