Grouping libraries into different catalogs

[wolnelektury.git] / apps / api / handlers.py

diff --git a/apps/api/handlers.py b/apps/api/handlers.py
index be5993c..dbe905b 100644 (file)
--- a/apps/api/handlers.py
+++ b/apps/api/handlers.py
@@ -138,7 +138,7 @@ class BookDetails(object):
     @classmethod
     def cover_thumb(cls, book):
         return MEDIA_BASE + default.backend.get_thumbnail(
-                    book.cover, "139x193").url
+                    book.cover, "139x193").url if book.cover else ''