From cf3700bc1bd8bdb94459c530e410c78b00c5ed2e Mon Sep 17 00:00:00 2001
From: Fridolin Somers <fridolin.somers@biblibre.com>
Date: Mon, 24 Apr 2023 20:05:50 -1000
Subject: [PATCH] Bug 33603: Fix
 misc/maintenance/search_for_data_inconsistencies.pl when biblio.biblionumber
 on control field

Since bug 29486, misc/maintenance/search_for_data_inconsistencies.pl search for biblio.biblionumber in MARC record with $record->subfield().
This fails when field is a control field (< 10).
Idem for biblioitems.biblioitemnumber

Test plan :
1.0) On a UNIMARC database (biblio.biblionumber is on 001)
1.1) Run misc/maintenance/search_for_data_inconsistencies.pl
=> Without patch you get error : Control fields (generally, just tags below 010) do not have subfields, use data()
=> With patch no error
2.0) On a MARC21 database (biblio.biblionumber is on 999c)
2.1) Run misc/maintenance/search_for_data_inconsistencies.pl
=> Check you see no error

Signed-off-by: David Nind <david@davidnind.com>
---
 .../search_for_data_inconsistencies.pl            | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/misc/maintenance/search_for_data_inconsistencies.pl b/misc/maintenance/search_for_data_inconsistencies.pl
index 7e1befef92..98f69215cd 100755
--- a/misc/maintenance/search_for_data_inconsistencies.pl
+++ b/misc/maintenance/search_for_data_inconsistencies.pl
@@ -129,8 +129,19 @@ use C4::Biblio qw( GetMarcFromKohaField );
             push @decoding_errors, $@;
             next;
         }
-        my $biblionumber = $record->subfield($biblio_tag, $biblio_subfield);
-        my $biblioitemnumber = $record->subfield($biblioitem_tag, $biblioitem_subfield);
+        my ( $biblionumber, $biblioitemnumber );
+        if ( $biblio_tag < 10 ) {
+            my $biblio_control_field = $record->field($biblio_tag);
+            $biblionumber = $biblio_control_field->data if $biblio_control_field;
+        } else {
+            $biblionumber = $record->subfield( $biblio_tag, $biblio_subfield );
+        }
+        if ( $biblioitem_tag < 10 ) {
+            my $biblioitem_control_field = $record->field($biblioitem_tag);
+            $biblioitemnumber = $biblioitem_control_field->data if $biblioitem_control_field;
+        } else {
+            $biblioitemnumber = $record->subfield( $biblioitem_tag, $biblioitem_subfield );
+        }
         if ( $biblionumber != $biblio->biblionumber ) {
             push @ids_not_in_marc,
               {
-- 
2.30.2