1 files changed, 40 insertions, 0 deletions
diff --git a/django/db/models/__init__.py b/django/db/models/__init__.py
new file mode 100644
index 0000000000..d708fa60bc
--- /dev/null
+++ b/django/db/models/__init__.py
@@ -0,0 +1,40 @@
+from django.conf import settings
+from django.core.exceptions import ObjectDoesNotExist, ImproperlyConfigured
+from django.core import validators
+from django.db import backend, 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.manager import Manager
+from django.db.models.base import Model, AdminOptions
+from django.db.models.fields import *
+from django.db.models.fields.related import ForeignKey, OneToOneField, ManyToManyField, ManyToOneRel, ManyToManyRel, OneToOneRel, TABULAR, STACKED
+from django.db.models import signals
+from django.utils.functional import curry
+from django.utils.text import capfirst
+
+# Admin stages.
+ADD, CHANGE, BOTH = 1, 2, 3
+
+class LazyDate:
+    """
+    Use in limit_choices_to to compare the field to dates calculated at run time
+    instead of when the model is loaded.  For example::
+
+        ... limit_choices_to = {'date__gt' : models.LazyDate(days=-3)} ...
+
+    which will limit the choices to dates greater than three days ago.
+    """
+    def __init__(self, **kwargs):
+        self.delta = datetime.timedelta(**kwargs)
+
+    def __str__(self):
+        return str(self.__get_value__())
+
+    def __repr__(self):
+        return "<LazyDate: %s>" % self.delta
+
+    def __get_value__(self):
+        return datetime.datetime.now() + self.delta
+
+    def __getattr__(self, attr):
+        return getattr(self.__get_value__(), attr)