X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/cf5dddce80a2b4fe4d5f8c87cc709050c0efb36e..13f286427e0ceb7a6c442844c447c7c3d5495871:/src/catalogue/models.py

diff --git a/src/catalogue/models.py b/src/catalogue/models.py
index 8bcf4e00..151a13e4 100644
--- a/src/catalogue/models.py
+++ b/src/catalogue/models.py
@@ -288,6 +288,12 @@ class Book(WikidataModel):
     def translators_last_names(self):
         return ', '.join(a.last_name for a in self.translators.all())
 
+    def document_book__project(self):
+        b = self.document_books.first()
+        if b is None: return ''
+        if b.project is None: return ''
+        return b.project.name
+
     def get_estimated_costs(self):
         return {
             work_type: work_type.calculate(self)