X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/c7c0b88f1f628f0498c8c53c76a061ec128a228a..0dedb252acdced77dc403ff4acdbb42734eb991f:/apps/catalogue/models/book.py

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index c865d1d87..3cab67632 100644
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -391,6 +391,10 @@ class Book(models.Model):
             for child in self.children.all():
                 child.parent_cover_changed()
 
+    def other_versions(self):
+        """Find other versions (i.e. in other languages) of the book."""
+        return type(self).objects.filter(common_slug=self.common_slug).exclude(pk=self.pk)
+
     def related_info(self):
         """Keeps info about related objects (tags, media) in cache field."""
         if self._related_info is not None: