From 00ac810de4e06b43aa19f6b850041b82ee2144f0 Mon Sep 17 00:00:00 2001
From: Fridolin Somers <fridolin.somers@biblibre.com>
Date: Thu, 23 May 2019 07:55:15 +0200
Subject: [PATCH] Bug 22969: fix biblionumber on 001 in UNIMARC XSLT

In UNIMARC default configuration the 001 is linked to biblio.biblionumber.
In some XSLT files, 090$a is used.
This is by default biblioitems.biblionumber so it usually works but it may not be the same and var biblionumber is used to create hyperlinks to record detail page.

Test plan :
1) Use UNIMARC database
2) Set default in all XSLT system preferences
3) At OPAC, perform a search and click on a result
4) Check displayed page shows the correct biblio record
5) Same at intranet

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Tested on clean UNIMARC install.
Before insert new records: "alter table biblioitems AUTO_INCREMENT = 5"
Added two records, with result:
+--------------+------------------+
| biblionumber | biblioitemnumber |
+--------------+------------------+
|            1 |                5 |
|            2 |                6 |
+--------------+------------------+
Without patch, OPAC results shows for first record
  http://opac/cgi-bin/koha/opac-detail.pl?biblionumber=5, Wrong!
with patch result is correct

Works, no errors
---
 .../prog/en/xslt/UNIMARCslim2intranetDetail.xsl             | 2 +-
 .../opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACDetail.xsl  | 2 +-
 .../opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACResults.xsl | 6 ++----
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/koha-tmpl/intranet-tmpl/prog/en/xslt/UNIMARCslim2intranetDetail.xsl b/koha-tmpl/intranet-tmpl/prog/en/xslt/UNIMARCslim2intranetDetail.xsl
index 361b88c10c..5f6e2b1782 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/xslt/UNIMARCslim2intranetDetail.xsl
+++ b/koha-tmpl/intranet-tmpl/prog/en/xslt/UNIMARCslim2intranetDetail.xsl
@@ -19,7 +19,7 @@
   <xsl:variable name="leader" select="marc:leader"/>
   <xsl:variable name="leader6" select="substring($leader,7,1)"/>
   <xsl:variable name="leader7" select="substring($leader,8,1)"/>
-  <xsl:variable name="biblionumber" select="marc:datafield[@tag=090]/marc:subfield[@code='a']"/>
+  <xsl:variable name="biblionumber" select="marc:controlfield[@tag=001]"/>
 
 
   <xsl:if test="marc:datafield[@tag=200]">
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACDetail.xsl b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACDetail.xsl
index 55fd2293ad..e5afad7c67 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACDetail.xsl
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACDetail.xsl
@@ -18,7 +18,7 @@
   <xsl:variable name="leader" select="marc:leader"/>
   <xsl:variable name="leader6" select="substring($leader,7,1)"/>
   <xsl:variable name="leader7" select="substring($leader,8,1)"/>
-  <xsl:variable name="biblionumber" select="marc:datafield[@tag=090]/marc:subfield[@code='a']"/>
+  <xsl:variable name="biblionumber" select="marc:controlfield[@tag=001]"/>
   <xsl:variable name="DisplayOPACiconsXSLT" select="marc:sysprefs/marc:syspref[@name='DisplayOPACiconsXSLT']"/>
   <xsl:variable name="OPACURLOpenInNewWindow" select="marc:sysprefs/marc:syspref[@name='OPACURLOpenInNewWindow']"/>
   <xsl:variable name="URLLinkText" select="marc:sysprefs/marc:syspref[@name='URLLinkText']"/>
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACResults.xsl b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACResults.xsl
index 2174d5d935..3279def752 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACResults.xsl
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/UNIMARCslim2OPACResults.xsl
@@ -23,10 +23,8 @@
   <xsl:variable name="leader" select="marc:leader"/>
   <xsl:variable name="leader6" select="substring($leader,7,1)"/>
   <xsl:variable name="leader7" select="substring($leader,8,1)"/>
-  <xsl:variable name="biblionumber"
-   select="marc:datafield[@tag=090]/marc:subfield[@code='a']"/>
-  <xsl:variable name="isbn"
-   select="marc:datafield[@tag=010]/marc:subfield[@code='a']"/>
+  <xsl:variable name="biblionumber" select="marc:controlfield[@tag=001]"/>
+  <xsl:variable name="isbn" select="marc:datafield[@tag=010]/marc:subfield[@code='a']"/>
   <xsl:variable name="OPACResultsLibrary" select="marc:sysprefs/marc:syspref[@name='OPACResultsLibrary']"/>
   <xsl:variable name="BiblioDefaultView" select="marc:sysprefs/marc:syspref[@name='BiblioDefaultView']"/>
   <xsl:variable name="hidelostitems" select="marc:sysprefs/marc:syspref[@name='hidelostitems']"/>
-- 
2.17.1