From c97c758bd4191d8d74b0b77d5f9d547f1f93a6b2 Mon Sep 17 00:00:00 2001
From: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Date: Mon, 25 Mar 2024 16:51:01 +0100
Subject: [PATCH] Bug 35610: Set branchcode to NULL before adding the FK

Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit 495f0d2caa8f75da5f428b8a18e58ce248a9fea1)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
---
 installer/data/mysql/atomicupdate/bug_35610.pl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/installer/data/mysql/atomicupdate/bug_35610.pl b/installer/data/mysql/atomicupdate/bug_35610.pl
index e9e2c10725..6143bd9e11 100755
--- a/installer/data/mysql/atomicupdate/bug_35610.pl
+++ b/installer/data/mysql/atomicupdate/bug_35610.pl
@@ -8,6 +8,12 @@ return {
         my ( $dbh, $out ) = @$args{qw(dbh out)};
 
         unless ( foreign_key_exists('old_reserves', 'old_reserves_ibfk_branchcode') ) {
+            $dbh->do(q{
+                UPDATE old_reserves
+                SET branchcode = NULL
+                WHERE branchcode NOT IN (SELECT branchcode FROM branches)
+            });
+
             $dbh->do(q{
                 ALTER TABLE old_reserves
                 ADD CONSTRAINT `old_reserves_ibfk_branchcode` FOREIGN KEY (`branchcode`) REFERENCES `branches` (`branchcode`) ON DELETE SET NULL ON UPDATE CASCADE;
-- 
2.39.5