fix invalid boxes for pdcounter authors

[wolnelektury.git] / src / catalogue / views.py

diff --git a/src/catalogue/views.py b/src/catalogue/views.py
index 503b6f5..fd98dee 100644 (file)
--- a/src/catalogue/views.py
+++ b/src/catalogue/views.py
@@ -794,3 +794,8 @@ def ridero_cover(request, slug):
     response = HttpResponse(content_type="image/png")
     cover.save(response)
     return response
+
+
+def get_isbn(request, book_format, slug):
+    book = Book.objects.get(slug=slug)
+    return HttpResponse(book.extra_info.get('isbn_%s' % book_format))