Dublin Core in Vertical Site

21/12/2007 13:49

Sometimes you need to expand the concept of metadata, and the Dublin Core standard is an easy match for Vertical Site.

Once again, I use the new website at Helsebiblioteket for my example.

The only thing you need to do is to change your datasource in page template level. Meta-tags is always presented in the page template XSL.

I have a standard global set of DC.tags displayed, and a default set for the menuitems. You will always be on a menuitem of some sort, but I override some of the DC.tag whenever a content is displayed.

<xsl:param name="schema.DC" select="'http://purl.org/dc/elements/1.1/'"/>
<xsl:param name="DC.format" select="'text/html'"/>
<xsl:param name="DC.contributor" select="'Helsebiblioteket - oppdatert fagkunnskap for norsk helsepersonell'"/>
<xsl:param name="DC.publisher" select="'Helsebiblioteket'"/>

A little further down in my page XSL I have this:

<xsl:template name="meta">
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type"/>
<link rel="schema.DC" href="{$schema.DC}" />
<meta name="DC.language" content="{$language}" />
<meta name="DC.format" content="{$DC.format}" />
<meta name="DC.contributor" content="{$DC.contributor}" />
<meta name="DC.publisher" content="{$DC.publisher}" />
<xsl:choose>
<xsl:when test="$content/@key and $content[@contenttypekey = 1009]">
<meta name="DC.title" content="{$content/title}" />
<meta name="DC.creator">
<xsl:attribute name="content">
<xsl:choose>
<xsl:when test="/verticaldata/contents/relatedcontents/content[@key = $content/contentdata/authors/content/@key]">
<xsl:value-of select="/verticaldata/contents/relatedcontents/content[@key = $content/contentdata/authors/content[1]/@key]/title"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$content/owner"/>
</xsl:otherwise>
</xsl:choose>
</xsl:attribute>
</meta>
<meta name="DC.date">
<xsl:attribute name="content">
<xsl:call-template name="formatDate">
<xsl:with-param name="date" select="$content/@timestamp"/>
<xsl:with-param name="format" select="'sitemapXML'"/>
</xsl:call-template>
</xsl:attribute>
</meta>
<xsl:if test="/verticaldata/contents/relatedcontents/content[@key = $content/contentdata/subject/content/@key]">
<meta name="DC.subject">
<xsl:attribute name="content">
<xsl:value-of select="/verticaldata/contents/relatedcontents/content[@key = $content/contentdata/subject/content[1]/@key]/title"/>
</xsl:attribute>
</meta>
</xsl:if>
</xsl:when>
<xsl:otherwise></xsl:otherwise>
</xsl:choose>
....
</xsl:template>

And that's really it. The Dublin Core spec is a lot bigger than this but this shows how easy it is to get started.