Short-circuit last_activity on unsaved FlowSession to avoid Django error

inducer · Aug 28, 2024 · 746c4ec · 746c4ec
1 parent 7d6585f
commit 746c4ec
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/course/models.py b/course/models.py
@@ -973,6 +973,9 @@ def answer_visits(self):
         return assemble_answer_visits(self)
 
     def last_activity(self) -> datetime.datetime | None:
+        if self.pk is None:
+            return None
+
         for visit in (FlowPageVisit.objects
                 .filter(
                     flow_session=self,