how to prevent displaying nodes twice - XSLT

ds 191 posts 223 karma points

Sep 06, 2010 @ 09:41

How to prevent displaying nodes twice?

Hi all,

I have created such structure for my flash xml file.

<gallery title="Standalone example" description="Slideshow example demonstrating event listeners.">
  <xsl:for-each select="$currentPage/node [string(data [@alias='umbracoNaviHide']) != '1']">
    <album lgPath="http://localhost" tnPath="http://localhost" title="{data[@alias = 'albumTitle']}" description="{data[@alias = 'albumDescription']}">                           
      <xsl:for-each select="$currentPage//node [string(data [@alias='umbracoNaviHide']) != '1']">
        <xsl:if test="./data [@alias = 'video']">
          <img src="{data[@alias = 'video']}" title="{data[@alias = 'title']}" caption="{data[@alias = 'caption']}" link="{data[@alias = 'link']}" target="_blank" pause="2" />   
        </xsl:if>      
        <xsl:if test="node[./data[@alias = 'image']]">                                                  
          <img src="{data[@alias = 'image']}" title="{data[@alias = 'title']}" caption="{data[@alias = 'caption']}" link="{data[@alias = 'link']}" target="_blank" pause="2" />                          
        </xsl:if>           
      </xsl:for-each>                   
    </album>
  </xsl:for-each>
</gallery>

and this xml file output the following xml:

<gallery title="Standalone example" description="Slideshow example demonstrating event listeners.">
  <album lgPath="http://localhost" tnPath="http://localhost" title="news" description="news description">
    <img src="/media/890/1.f4v" title="flash" caption="flash" link="www.asp.net" target="_blank" pause="2"/>
    <img src="" title="flash" caption="flash" link="www.asp.net" target="_blank" pause="2"/>
    <img src="" title="title of the images" caption="caption of the images" link="www.asp.net" target="_blank" pause="2"/>
    <img src="/media/864/dsc_0060.png" title="title" caption="caption of the images" link="www.asp.net" target="_blank" pause="2"/>
    <img src="" title="title of the images" caption="caption of the images" link="" target="_blank" pause="2"/>
    <img src="/media/915/image.png" title="title of the images" caption="caption of the images" link="" target="_blank" pause="2"/>
  </album>
</gallery>

As you can see, there are some extra image tags which have no source?

I also created some nodes for xml file.

- Flash (xslt file located here)

- Month name (for example August 2010)

- Image node

- Flash node

Based on my xslt file, which lines should be adjusted?

thanx,

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Chriztian Steinmeier 2800 posts 8790 karma points MVP 8x admin c-trib

Sep 06, 2010 @ 09:47

Hi ds,

Looks like you need to use a choose construct instead of 2 if statements:

<xsl:choose>
    <xsl:when test="./data [@alias = 'video']">
        <img src="{data[@alias = 'video']}" title="{data[@alias = 'title']}" caption="{data[@alias = 'caption']}" link="{data[@alias = 'link']}" target="_blank" pause="2" />   
    </xsl:when>      
    <xsl:when test="node[./data[@alias = 'image']]">                                                  
        <img src="{data[@alias = 'image']}" title="{data[@alias = 'title']}" caption="{data[@alias = 'caption']}" link="{data[@alias = 'link']}" target="_blank" pause="2" />                          
    </xsl:when>
</xsl:choose>

/Chriztian

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Matt Brailsford 4125 posts 22223 karma points MVP 9x c-trib

Sep 06, 2010 @ 09:52

You'll also want to check the attribute for a value aswell. I belive you are currently just checking for the existance of the attribute, so you'll probably want to change the tests in Chriztians example to something like the following:

test="string-length(./data [@alias = 'video']) &gt; 0"

Matt

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ds 191 posts 223 karma points

Sep 06, 2010 @ 09:59

Hi Chriztian,

I updated code;

       <gallery title="Standalone example" description="Slideshow example demonstrating event listeners.">
         <xsl:for-each select="$currentPage/node [string(data [@alias='umbracoNaviHide']) != '1']">
              <album lgPath="http://localhost" tnPath="http://localhost" title="{data[@alias = 'albumTitle']}" description="{data[@alias = 'albumDescription']}" tn="http://localhost">
                   <xsl:for-each select="node">   
                     <xsl:if test="string-length(./data [@alias = 'image']) &gt; 0">                                               
                                                  <img src="{data[@alias = 'image']}" title="{data[@alias = 'title']}" caption="{data[@alias = 'caption']}" link="{data[@alias = 'link']}" target="_blank" pause="" vidpreview="/flash/gallery/album2/video/1_preview.png"/>                                                        
                      </xsl:if>     
                  </xsl:for-each>
                 <xsl:for-each select="node">   
                     <xsl:if test="string-length(./data [@alias = 'video']) &gt; 0">                                               
                                                  <img src="{data[@alias = 'video']}" tn="http://localhost" title="{data[@alias = 'title']}" caption="{data[@alias = 'caption']}" link="{data[@alias = 'link']}" target="_blank" pause="" />                                                        
                      </xsl:if>     
                  </xsl:for-each>
                         </album>
            </xsl:for-each>
     </gallery>

but video node does not work out.

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ds 191 posts 223 karma points

Sep 06, 2010 @ 10:00

Hi Matt,

I will also try your suggestion as well,

thanx

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ds 191 posts 223 karma points

Sep 06, 2010 @ 15:37

Chriztian,

Could you give me some hint for my updated code ?

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How to prevent displaying nodes twice?