filter nodes on value in nodename

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Rik Hodiamont 56 posts 156 karma points

Nov 10, 2013 @ 15:59

0

Filter nodes on value in nodename

XSLT

Hi!

Is it possible to show all the nodes starting with a certain letter?

I have a list of books in Umbraco, and when a user clicks on the A. I only want to show the books starting with an A.

Thanks in advance for any hint or help.

Rik

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Chriztian Steinmeier 2798 posts 8788 karma points MVP 7x admin c-trib

Nov 10, 2013 @ 22:33

Hi Rik,

You can use the starts-with() function for that - if you create a list like this where you link each letter to itself:

<ul>
    <li><a href="?letter=A">A</a></li>
    <li><a href="?letter=B">B</a></li>
    <li><a href="?letter=C">C</a></li>
    <!-- etc. -->
</ul>

Then you can grab the letter from the QueryString and show all the books starting with that letter, using something like this:

<!-- Grab the root of the site -->
<xsl:variable name="siteRoot" select="$currentPage/ancestor-or-self::*[@level = 1]" />

<!-- Grab the container for the books -->
<xsl:variable name="booksRoot" select="$siteRoot/Books" />

<xsl:template match="/">
    <xsl:variable name="letter" select="umbraco.library:RequestQueryString('letter')" />
    <xsl:apply-templates select="$booksRoot//Book[starts-with(@nodeName, $letter)]" />
</xsl:template>

<!-- Template for a Book -->
<xsl:template match="Book">
    <section class="book">
        <h1>
            <a href="umbraco.library:NiceUrl(@id)"><xsl:value-of select="@nodeName" /></a>
        </h1>
        <!-- etc. -->
    </section>
</xsl:template>

Note that you'll have to substitute the actual DocumentType aliases for Books and Book documents where they're used in the above code.

/Chriztian

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Rik Hodiamont 56 posts 156 karma points

Nov 13, 2013 @ 11:22

0

Tnx Chriztian. This will do the trick!

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Gary 40 posts 129 karma points

Mar 14, 2014 @ 16:07

0

If you wanted to have a 'show all' button for this function - how could this be done?

Thanks

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Peter Gregory 408 posts 1614 karma points MVP 3x admin c-trib

Mar 14, 2014 @ 16:40
0
Yep totally can.

You would need to do a little modification to the above script. basically just put in a test to see if the letter variable is passed. If its not just get to apply the template to all books. My XSLT is a little rusty as I havent written any in about 2 years but I think it should look a little like this.
```
<xsl:variable name="letter" select="umbraco.library:RequestQueryString('letter')" />

<xsl:choose>
    <xsl:when test="$letter != ''">
        <xsl:apply-templates select="$booksRoot//Book[starts-with(@nodeName, $letter)]" />
    </xsl:when>
    <xsl:otherwise>
        <xsl:apply-templates select="$booksRoot//Book"/>
    </xsl:otherwise>
</xsl:choose>
```
Then all you need is a link to the page without any querystring param.
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