From 44974eca5cd6e3fdb299d815f7a1a512cefd6196 Mon Sep 17 00:00:00 2001
From: Radek Czajka <rczajka@rczajka.pl>
Date: Fri, 24 Apr 2026 12:14:52 +0200
Subject: [PATCH] Use mp3 isbn from repo

---
 src/documents/models/book.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/documents/models/book.py b/src/documents/models/book.py
index 0ffd14aa..ca1f4f8c 100644
--- a/src/documents/models/book.py
+++ b/src/documents/models/book.py
@@ -473,6 +473,11 @@ class Book(models.Model):
         if not fake:
             book_xml = self.materialize(changes=changes)
             data = {"book_xml": book_xml, "days": days, "hidden": hidden}
+            if self.catalogue_book is not None:
+                cb = self.catalogue_book
+                isbn = cb.isbn_set.filter(form='mp3').first()
+                if isbn is not None:
+                data['isbn_mp3'] = isbn.get_code()
             if self.project is not None:
                 if self.project.logo:
                     data['logo'] = urljoin(
-- 
2.20.1