From: =?utf-8?q?Stephan_S=C3=BCrken?= <absurd@olurdix.de>
Date: Wed, 17 Jul 2019 17:27:44 +0200
Subject: django 2.0: Add missing 'on_delete=' argument for 'ForeignKey'
 fields.

Compare: https://docs.djangoproject.com/en/2.2/releases/2.0/#features-removed-in-2-0
---
 registration/migrations/0001_initial.py | 1 +
 registration/models.py                  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/registration/migrations/0001_initial.py b/registration/migrations/0001_initial.py
index 5c00bfa..0b4b936 100644
--- a/registration/migrations/0001_initial.py
+++ b/registration/migrations/0001_initial.py
@@ -27,6 +27,7 @@ class Migration(migrations.Migration):
                      max_length=40)),
                 ('user',
                  models.OneToOneField(
+                     on_delete=models.CASCADE,
                      to=settings.AUTH_USER_MODEL,
                      verbose_name='user')),
             ],
diff --git a/registration/models.py b/registration/models.py
index 7f49e50..d68ed09 100644
--- a/registration/models.py
+++ b/registration/models.py
@@ -135,6 +135,7 @@ class RegistrationProfile(models.Model):
     ACTIVATED = "ALREADY_ACTIVATED"
 
     user = models.OneToOneField(settings.AUTH_USER_MODEL,
+                                on_delete=models.CASCADE,
                                 verbose_name=_(u'user'))
     activation_key = models.CharField(_(u'activation key'), max_length=40)
 
