[Koha] OPAC XSLT template: how to add text if the MARC field is not blank?

[Andreas Roussos]

Hi Fred,

The snippet you posted already has some "if" logic at the top, where it 
checks for the presence of field 698.

You just need to wrap your <a> tags within a similar conditional block.

Inside your for-each loop, try changing

<a><xsl:attribute 
name="href">/cgi-bin/koha/opac-search.pl?q=conference-name:"<xsl:value-of 
select="marc:subfield[@code='c']"/>"</xsl:attribute><xsl:value-of 
select="marc:subfield[@code='c']"/></a><xsl:text>, </xsl:text>

to

<xsl:if test="marc:subfield[@code='c']">
<a><xsl:attribute 
name="href">/cgi-bin/koha/opac-search.pl?q=conference-name:"<xsl:value-of 
select="marc:subfield[@code='c']"/>"</xsl:attribute><xsl:value-of 
select="marc:subfield[@code='c']"/></a><xsl:text>, </xsl:text>
</xsl:if>

Minimalistic online example: http://xsltransform.net/naZXVFT

Kind regards,
Andreas

On 2023-02-21 00:52, King, Fred wrote:
> Hi everyone,
>
> I'm editing the OPAC detail xslt file to display some extra fields. What I have now is this:
>
>                                  <xsl:if test="marc:datafield[@tag=698]">
>             <span class="results_summary conference">
>                 <xsl:if test="marc:datafield[@tag=698]/@ind1=' '">
>                     <span class="label">Conference: </span>
>                 </xsl:if>
>                 <xsl:for-each select="marc:datafield[@tag=698]">
>                    <a><xsl:attribute name="href">/cgi-bin/koha/opac-search.pl?q=conference-name:"<xsl:value-of select="marc:subfield[@code='a']"/>"</xsl:attribute><xsl:value-of select="marc:subfield[@code='a']"/></a>
>                      <a><xsl:attribute name="href">/cgi-bin/koha/opac-search.pl?q=conference-name:"<xsl:value-of select="marc:subfield[@code='c']"/>"</xsl:attribute><xsl:value-of select="marc:subfield[@code='c']"/></a>
>                    <a><xsl:attribute name="href">/cgi-bin/koha/opac-search.pl?q=conference-name:"<xsl:value-of select="marc:subfield[@code='d']"/>"</xsl:attribute><xsl:value-of select="marc:subfield[@code='d']"/></a>
>                    <a><xsl:attribute name="href">/cgi-bin/koha/opac-search.pl?q=conference-name:"<xsl:value-of select="marc:subfield[@code='e']"/>"</xsl:attribute><xsl:value-of select="marc:subfield[@code='e']"/></a>
>                 <xsl:if test="position()!=last()"><span class="separator"><xsl:text> | </xsl:text></span></xsl:if>
>                 </xsl:for-each>
>             </span>
>         </xsl:if>
>
> Right now it appears on the details page as fieldafieldcfielddfielde. I'd like to add a comma between the fields.
>
> I tried adding <xsl:text>, </xsl:text>, but if there are fields a and e but no c and d, for example, the OPAC display comes out as fielda, , , fielde.
>
> Is there xsl for "if there's something in field c, then add a comma and a space, otherwise don't put anything there" so I can have fielda, fielde? It seems as if there ought to be one, but I haven't found it yet.
>
> Cheers,
>
> Fred King, MSLS, AHIP
> Medical Librarian, MedStar Washington Hospital Center
> fred.king at medstar.net
> 202-877-6670
> ORCID 0000-0001-5266-0279
> MedStar Authors Catalog: http://medstarauthors.org
>
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