Fixed #21127 -- Started deprecation toward requiring on_delete for ForeignKey/OneToOneField

1 files changed, 4 insertions, 4 deletions

diff --git a/tests/m2o_recursive/models.py b/tests/m2o_recursive/models.py
index ac6ca8451d..d62c514a25 100644
--- a/tests/m2o_recursive/models.py
+++ b/tests/m2o_recursive/models.py
@@ -2,7 +2,7 @@
 Relating an object to itself, many-to-one
 
 To define a many-to-one relationship between a model and itself, use
-``ForeignKey('self')``.
+``ForeignKey('self', ...)``.
 
 In this example, a ``Category`` is related to itself. That is, each
 ``Category`` has a parent ``Category``.
@@ -17,7 +17,7 @@ from django.utils.encoding import python_2_unicode_compatible
 @python_2_unicode_compatible
 class Category(models.Model):
     name = models.CharField(max_length=20)
-    parent = models.ForeignKey('self', blank=True, null=True, related_name='child_set')
+    parent = models.ForeignKey('self', models.SET_NULL, blank=True, null=True, related_name='child_set')
 
     def __str__(self):
         return self.name
@@ -26,8 +26,8 @@ class Category(models.Model):
 @python_2_unicode_compatible
 class Person(models.Model):
     full_name = models.CharField(max_length=20)
-    mother = models.ForeignKey('self', null=True, related_name='mothers_child_set')
-    father = models.ForeignKey('self', null=True, related_name='fathers_child_set')
+    mother = models.ForeignKey('self', models.SET_NULL, null=True, related_name='mothers_child_set')
+    father = models.ForeignKey('self', models.SET_NULL, null=True, related_name='fathers_child_set')
 
     def __str__(self):
         return self.full_name