X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/3fd04fa811ccc4be2c8f949d06faef9b0325a393..a5255a7dad7389d26a90a72072e8c39cfe5e469e:/wtem/models.py

diff --git a/wtem/models.py b/wtem/models.py
index 90492bf..9e67ad8 100644
--- a/wtem/models.py
+++ b/wtem/models.py
@@ -49,7 +49,7 @@ class Attachment(models.Model):
 
 
 class Assignment(models.Model):
-    user = models.ForeignKey(User)
+    user = models.ForeignKey(User, unique = True)
     exercises = JSONField()
 
     def clean(self):