From 190205f603a5fa0614de43ddb669427e94518be2 Mon Sep 17 00:00:00 2001
From: Tomas Cohen Arazi <tomascohen@theke.io>
Date: Mon, 19 Aug 2024 11:35:13 -0300
Subject: [PATCH] Bug 37513: Add Koha::RecordSource->usage_count

This patch adds the `usage_count` method to be used for embedding from
the API. Tests cover all use cases.

To test:
1. Apply this patch
2. Run:
   $ ktd --shell
  k$ prove t/db_dependent/Koha/RecordSource.t
=> SUCCESS: Tests pass!
3. Sign off :-D

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
---
 Koha/RecordSource.pm               | 15 ++++++++++
 t/db_dependent/Koha/RecordSource.t | 47 ++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100755 t/db_dependent/Koha/RecordSource.t

diff --git a/Koha/RecordSource.pm b/Koha/RecordSource.pm
index 8b4fecbe25..54f7921b6d 100644
--- a/Koha/RecordSource.pm
+++ b/Koha/RecordSource.pm
@@ -31,6 +31,21 @@ Koha::RecordSource - Koha RecordSource Object class
 
 =head1 API
 
+=head2 Class methods
+
+=head3 usage_count
+
+    my $count = $source->usage_count();
+
+This method returns the count for records using this record source.
+
+=cut
+
+sub usage_count {
+    my ($self) = @_;
+    return $self->_result->biblio_metadatas->count();
+}
+
 =head2 Internal methods
 
 =head3 _type
diff --git a/t/db_dependent/Koha/RecordSource.t b/t/db_dependent/Koha/RecordSource.t
new file mode 100755
index 0000000000..5a0bba3212
--- /dev/null
+++ b/t/db_dependent/Koha/RecordSource.t
@@ -0,0 +1,47 @@
+#!/usr/bin/perl
+
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# Koha is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Koha; if not, see <http://www.gnu.org/licenses>.
+
+use Modern::Perl;
+
+use Test::More tests => 1;
+
+use Koha::Database;
+
+use t::lib::TestBuilder;
+
+my $schema  = Koha::Database->new->schema;
+my $builder = t::lib::TestBuilder->new;
+
+subtest 'usage_count() tests' => sub {
+
+    plan tests => 2;
+
+    $schema->storage->txn_begin;
+
+    my $source = $builder->build_object( { class => 'Koha::RecordSources' } );
+
+    is( $source->usage_count, 0, q{Unused record source has a count of 0} );
+
+    foreach ( 1 .. 3 ) {
+        my $biblio = $builder->build_sample_biblio();
+        $biblio->metadata->record_source_id( $source->id )->store();
+    }
+
+    is( $source->usage_count, 3, q{3 records linked, count is 3} );
+
+    $schema->storage->txn_rollback;
+};
-- 
2.39.5