From 17e965e26ef908f7ad69421765048d4017a40188 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Laura=20Kl=C3=BCnder?= Date: Mon, 12 Jun 2017 14:59:56 +0200 Subject: [PATCH] change objects can not be edited --- src/c3nav/editor/models.py | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/c3nav/editor/models.py b/src/c3nav/editor/models.py index 189d1c3c..4eae0e71 100644 --- a/src/c3nav/editor/models.py +++ b/src/c3nav/editor/models.py @@ -143,3 +143,8 @@ class Change(models.Model): for field_name in ('field_name', 'field_value'): if getattr(self, field_name) is not None: raise ValidationError('%s must not be set if action is create or delete.' % field_name) + + def save(*args, **kwargs): + if self.pk is not None: + raise ValidationError('change objects can not be edited.') + super().save(*args, **kwargs)