From cafe17d65eabc10031ec3d2be0d06677cbc1b108 Mon Sep 17 00:00:00 2001
From: Owen Leonard <oleonard@myacpl.org>
Date: Wed, 4 Feb 2026 12:28:07 -0500
Subject: [PATCH] Bug 41764: ISSN hidden input missing from Z39.50 search form
 navigation

This patch modifies the Acquisitions and Cataloging Z39.50 search forms
so that the pagination form includes a hidden ISSN input. This is
necessary for the form to submit the same search parameters each time
the user requests a new page of results.

To test, apply the patch and go to Acquisitions.

- Search for a vendor, and create a basket if necessary.
- Add to the basket and choose "From an external source."
- In the "ISSN" field, enter a partial ISSN number, e.g. 0361, and
  search.
- At the bottom of the search results, click the "Next page" button.
- The second page of results should load correctly. At the top of the
  table of results it should say "You searched for: ISSN: 0361"
- Perform the same test in Cataloging:
  - Cataloging -> New from Z39.50/SRU

Sponsored-by: Athens County Public Libraries
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Andrew Fuerste Henry <andrew@bywatersolutions.com>
Signed-off-by: Laura Escamilla <laura.escamilla@bywatersolutions.com>
(cherry picked from commit 6041a1ddc53f03288e11d6086ac8b3dac68aaa26)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
---
 koha-tmpl/intranet-tmpl/prog/en/modules/acqui/z3950_search.tt    | 1 +
 .../intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/z3950_search.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/z3950_search.tt
index 0dac1852d1..9d3f1522c4 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/z3950_search.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/z3950_search.tt
@@ -256,6 +256,7 @@ tr.selected td {
         <input type="hidden" name="current_page" id="current_page" value="[% current_page | html %]" />
         <input type="hidden" id="searchtitle"  name="title" value="[% title | html %]" />
         <input type="hidden" id="isbn" name="isbn" value="[% isbn | html %]" />
+        <input type="hidden" id="issn" name="issn" value="[% issn | html %]" />
         <input type="hidden" id="lccall" name="lccall" value="[% lccall | html %]" />
         <input type="hidden" id="author" name="author" value="[% author | html %]" />
         <input type="hidden" id="publicationyear" name="publicationyear" value="[% publicationyear | html %]" />
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
index ebd775da04..faba9ec7dd 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
@@ -213,6 +213,7 @@
                                 <input type="hidden" name="current_page" id="current_page" value="[% current_page | html %]" />
                                 <input type="hidden" id="title"  name="title" value="[% title | html %]" />
                                 <input type="hidden" id="isbn" name="isbn" value="[% isbn | html %]" />
+                                <input type="hidden" id="issn" name="issn" value="[% issn | html %]" />
                                 <input type="hidden" id="lccall" name="lccall" value="[% lccall | html %]" />
                                 <input type="hidden" id="controlnumber" name="controlnumber" value="[% controlnumber | html %]" />
                                 <input type="hidden" id="srchany" name="srchany" value="[% srchany | html %]" />