[1.6.x] Fixed #22048 - Enhanced docs to cover nonexistent one-to-one relationships.

Thanks EvilDMP for the suggestion.

Backport of ec08d62a20 from master

1 files changed, 9 insertions, 0 deletions

diff --git a/docs/ref/models/fields.txt b/docs/ref/models/fields.txt
index b07b5b1701..58ff0acbda 100644
--- a/docs/ref/models/fields.txt
+++ b/docs/ref/models/fields.txt
@@ -1345,6 +1345,15 @@ your resulting ``User`` model will have the following attributes::
     >>> hasattr(user, 'supervisor_of')
     True
 
+A ``DoesNotExist`` exception is raised when accessing the reverse relationship
+if an entry in the related table doesn't exist. For example, if a user doesn't
+have a supervisor designated by ``MySpecialUser``::
+
+    >>> user.supervisor_of
+    Traceback (most recent call last):
+        ...
+    DoesNotExist: User matching query does not exist.
+
 .. _onetoone-arguments:
 
 Additionally, ``OneToOneField`` accepts all of the extra arguments