From dbaf146266a5d25d2c3843cde977cfa027854134 Mon Sep 17 00:00:00 2001
From: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Date: Thu, 18 Jun 2020 11:34:27 +0000
Subject: [PATCH] Bug 25801: Add itemnumber parameter to opac-detail

Note: The GetItemsInfo call is now suboptimal. Leaving it as-is
for now in the hope that item refactoring picks it up ;)

Test plan:
Test opac-detail via biblionumber (regular use).
Test opac-detail by passing an itemnumber in the URL:
    /cgi-bin/koha/opac-detail?itemnumber=999

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>

Signed-off-by: Owen Leonard <oleonard@myacpl.org>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
---
 koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt | 4 ++--
 opac/opac-detail.pl                                     | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt
index 7beeb1a969..09e0f0e8dc 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-detail.tt
@@ -479,8 +479,8 @@
                         [% ELSE %]
                             <li id="tab_holdings">
                         [% END %]
-                        [% BLOCK holding_tab_title %][% IF SeparateHoldings %]<span>[% LoginBranchname | html %] holdings</span>[% ELSE %]<span>Holdings</span>[% END %][% END %]
-                            <a href="#holdings">[% PROCESS holding_tab_title %] [% UNLESS too_many_items %][% ' ( ' _ (itemloop.size || 0) _ ' )' | html %][% END %]</a>
+                        [% BLOCK holding_tab_title %][% IF SeparateHoldings %]<span>[% LoginBranchname | html %] holdings</span>[% ELSE %][% IF specific_item %]<span>Item details</span>[% ELSE %]<span>Holdings</span>[% END %][% END %][% END %]
+                            <a href="#holdings">[% PROCESS holding_tab_title %] [% UNLESS too_many_items OR specific_item %][% ' ( ' _ (itemloop.size || 0) _ ' )' | html %][% END %]</a>
                         </li>
                         [% IF (SeparateHoldings) %]
                             <li><a href="#otherholdings">Other holdings [% ' ( ' _ (otheritemloop.size || 0) _ ' )' | html %]</a></li>
diff --git a/opac/opac-detail.pl b/opac/opac-detail.pl
index 5c1880fbed..ce091b78fb 100755
--- a/opac/opac-detail.pl
+++ b/opac/opac-detail.pl
@@ -67,6 +67,9 @@ my $query = CGI->new();
 my $biblionumber = $query->param('biblionumber') || $query->param('bib') || 0;
 $biblionumber = int($biblionumber);
 
+my $specific_item = $query->param('itemnumber') ? Koha::Items->find( scalar $query->param('itemnumber') ) : undef;
+$biblionumber = $specific_item->biblionumber if $specific_item;
+
 my ( $template, $borrowernumber, $cookie ) = get_template_and_user(
     {
         template_name   => "opac-detail.tt",
@@ -77,6 +80,10 @@ my ( $template, $borrowernumber, $cookie ) = get_template_and_user(
 );
 
 my @all_items = GetItemsInfo($biblionumber);
+if( $specific_item ) {
+    @all_items = grep { $_->{itemnumber} == $query->param('itemnumber') } @all_items;
+    $template->param( specific_item => 1 );
+}
 my @hiddenitems;
 my $patron = Koha::Patrons->find( $borrowernumber );
 our $borcat= q{};
-- 
2.39.5