diff options
Diffstat (limited to 'django/db/models/base.py')
| -rw-r--r-- | django/db/models/base.py | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/django/db/models/base.py b/django/db/models/base.py index b679d08654..2a8e5fd2c8 100644 --- a/django/db/models/base.py +++ b/django/db/models/base.py @@ -18,7 +18,7 @@ from django.db import ( ) from django.db.models import signals from django.db.models.constants import LOOKUP_SEP -from django.db.models.deletion import Collector +from django.db.models.deletion import CASCADE, Collector from django.db.models.fields import AutoField from django.db.models.fields.related import ( ForeignObjectRel, ManyToOneRel, OneToOneField, lazy_related_operation, @@ -230,8 +230,13 @@ class ModelBase(type): field = parent_links[base_key] elif not is_proxy: attr_name = '%s_ptr' % base._meta.model_name - field = OneToOneField(base, name=attr_name, - auto_created=True, parent_link=True) + field = OneToOneField( + base, + on_delete=CASCADE, + name=attr_name, + auto_created=True, + parent_link=True, + ) # Only add the ptr field if it's not already present; # e.g. migrations will already have it specified if not hasattr(new_class, attr_name): |