Symphony.

Hello all, I’m trying to use this post as an example of how to get a list without any duplicates using XSLT. I am getting tags, but I don’t want to use a custom datasource because I want to find all of the tags used by a specific bunch of entries, not all of them.

Right now it is still listing all of the tags without taking out the duplicates, am I missing something?

Here’s what I’m trying in my XSLT:

<xsl:for-each select="all-tags//item[not(. = following::item)]">
<li><a href="#"><xsl:value-of select="."/></a>, </li>
</xsl:for-each>

And here’s a shortened version of my XML:

<all-tags>
<section id="7" handle="issues">Issues</section>
        <entry id="44" comments="0">
            <tags>
                <item handle="w00t">w00t</item>
            </tags>
        </entry>
        <entry id="42" comments="0">
            <tags>
                <item handle="optical">Optical</item>
                <item handle="test">Test</item>
                <item handle="w00t">w00t</item>
            </tags>
        </entry>
        <entry id="16" comments="4">
            <tags>
                <item handle="w00t">w00t</item>
            </tags>
        </entry>
    </all-tags>

I’ve run this locally and it’s correctly selecting all the distinct items. What does yours output?

I think you’re really close. The problem I think is that following::item isn’t looking at the next items in the entire loop, but the next item node in relation to the current node. Maybe.

I used a similar method recently, as follows:

all-tags/entry/tags/item[not(.=preceding-sibling::all-tags/entry/tags/item)]

Sorry to bring back an old topic, but I never could get this code to work and now I’ve run into the problem again. Does this code work for you guys? I’ve checked it a few times and tried to read up on xsl’s “preceding-sibling”, but still having trouble.

Is the only other way to do it a custom datasource? If I used the custom datasource, could I still filter the tags that are returned based on what “project” their connected to?

Thanks for the help, really appreciate these forums.

I did something similar here.

I’d use the Muenchian grouping method to group your entries by tag. This would ensure uniqueness of your tags based upon the current available entries - that’s how I do the monthly & tag-based archive listings on my personal site. It can be a bit of a pain to get your head around the first few times you use it (there’s no good documentation aside from Jeni’s site), but it’s more efficient than multi-tiered looping of your content.

Here’s the link: Grouping Using the Muenchian Method

I agree with Tony. I would use Muenchian method of grouping as well. Jeni Tennison’s site is the best to pull from. Also, after doing a quick Google search, I came up with the following links…

• http://strivinglife.com/words/post/Muenchian-Method-grouping-in-XSLT.aspx
• http://www.daggie.be/?p=159
• http://shelter.nu/art-008.html

Ditto Allen. I ran your test case as you defined it initially and got only unique tag names. I added several tag names with duplicates and still got a unique list.