1 files changed, 6 insertions, 6 deletions
diff --git a/tests/null_fk/models.py b/tests/null_fk/models.py
index 9309ae940f..6a7da8f620 100644
--- a/tests/null_fk/models.py
+++ b/tests/null_fk/models.py
@@ -11,18 +11,18 @@ class SystemDetails(models.Model):
 
 
 class SystemInfo(models.Model):
-    system_details = models.ForeignKey(SystemDetails)
+    system_details = models.ForeignKey(SystemDetails, models.CASCADE)
     system_name = models.CharField(max_length=32)
 
 
 class Forum(models.Model):
-    system_info = models.ForeignKey(SystemInfo)
+    system_info = models.ForeignKey(SystemInfo, models.CASCADE)
     forum_name = models.CharField(max_length=32)
 
 
 @python_2_unicode_compatible
 class Post(models.Model):
-    forum = models.ForeignKey(Forum, null=True)
+    forum = models.ForeignKey(Forum, models.SET_NULL, null=True)
     title = models.CharField(max_length=32)
 
     def __str__(self):
@@ -31,7 +31,7 @@ class Post(models.Model):
 
 @python_2_unicode_compatible
 class Comment(models.Model):
-    post = models.ForeignKey(Post, null=True)
+    post = models.ForeignKey(Post, models.SET_NULL, null=True)
     comment_text = models.CharField(max_length=250)
 
     class Meta:
@@ -52,6 +52,6 @@ class PropertyValue(models.Model):
 
 
 class Property(models.Model):
-    item = models.ForeignKey(Item, related_name='props')
+    item = models.ForeignKey(Item, models.CASCADE, related_name='props')
     key = models.CharField(max_length=100)
-    value = models.ForeignKey(PropertyValue, null=True)
+    value = models.ForeignKey(PropertyValue, models.SET_NULL, null=True)