change fn to anon

appstore/core/models.py

@@ -17,9 +17,6 @@ def generate_token():
             token = "".join(secrets.choice(ascii_letters + digits) for i in range(256))
         return token
 
-def user_token_expires():
-    return timezone.now() + timedelta(days=31)
-
 def update_user(user):
     # as of Django_saml2_auth v3.12.0 does not add email address by default
     # to the created use entry in django db according to: 
@@ -55,7 +52,7 @@ class UserIdentityToken(models.Model):
     token = models.CharField(max_length=256, unique=True, default=generate_token)
     # Optionally, identify the consumer (probably an app) whom the token was generated for.
     consumer_id = models.CharField(max_length=256, default=None, null=True)
-    expires = models.DateTimeField(default=user_token_expires)
+    expires = models.DateTimeField(default=lambda: timezone.now() + timedelta(days=31))
 
     @property
     def valid(self):