Fixed #7210 -- Added F() expressions to query language. See the documentation for details on usage.

Many thanks to:
    * Nicolas Lara, who worked on this feature during the 2008 Google Summer of Code.
    * Alex Gaynor for his help debugging and fixing a number of issues.
    * Malcolm Tredinnick for his invaluable review notes.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9792 bcc190cf-cafb-0310-a4f2-bffc1f526a37

1 files changed, 1 insertions, 0 deletions

diff --git a/django/db/models/__init__.py b/django/db/models/__init__.py
index 0802f8695e..c28bce86bf 100644
--- a/django/db/models/__init__.py
+++ b/django/db/models/__init__.py
@@ -3,6 +3,7 @@ from django.core.exceptions import ObjectDoesNotExist, ImproperlyConfigured
 from django.db import connection
 from django.db.models.loading import get_apps, get_app, get_models, get_model, register_models
 from django.db.models.query import Q
+from django.db.models.expressions import F
 from django.db.models.manager import Manager
 from django.db.models.base import Model
 from django.db.models.aggregates import *