cant getmedia$variable true work with a variable - XSLT

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Chris 11 posts 53 karma points

Sep 15, 2011 @ 16:59

Cant GetMedia($variable, true()) work with a variable?

i want to collect all images in a media folder. I have this code, where 1143 id the id of my folder:

<xsl:for-each select="umbraco.library:GetMedia(1143, true())/*">
  <xsl:if test="./@id">
    <xsl:variable name="im" select="umbraco.library:GetMedia(./@id, false())"/>
    <img src="{$im/umbracoFile}" alt="" />
  </xsl:if>
</xsl:for-each>

This works fine. However, I want the id to be collected from my document. So I replace 1143 with $currentPage/bildemappe, leaving the code like this:

<xsl:for-each select="umbraco.library:GetMedia($currentPage/bildemappe, true())/*">
  <xsl:if test="./@id">
    <xsl:variable name="im" select="umbraco.library:GetMedia(./@id, false())"/>
    <img src="{$im/umbracoFile}" alt="" />
  </xsl:if>
</xsl:for-each>

The above will not be saved in umbraco, and gives me an error message:

---

Error occured
System.OverflowException: Value was either too large or too small for an Int32.

   at System.Convert.ToInt32(Double value)
   at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
   at System.Xml.Xsl.Runtime.XmlQueryRuntime.ChangeTypeXsltArgument(XmlQueryType xmlType, Object value, Type destinationType)
   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)

   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)
   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)

---

I dont understand why this doesnt work. If I test $currentPage/bildemappe I get exactly the value I want.

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Chris 11 posts 53 karma points

Sep 15, 2011 @ 17:08

I found the answer:

Actually it worked the whole time, it was only umbraco who would not validate my xslt.

I had no test, to check if $currentPage/bildemappe was empty or not. When I added that, I got no errors!

Final code looks like this:

<xsl:variable name="imFolder" select="$currentPage/bildemappe"/>
<xsl:if test="$imFolder != ''">
  <xsl:for-each select="umbraco.library:GetMedia($imFolder, true())/*">
    <xsl:if test="./@id">
      <xsl:variable name="im" select="umbraco.library:GetMedia(./@id, false())"/>
      <img src="{$im/umbracoFile}" alt="" />
    </xsl:if>
  </xsl:for-each>
</xsl:if>

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