--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/thirdparty/google_appengine/lib/django/tests/modeltests/field_defaults/models.py	Tue Aug 26 21:49:54 2008 +0000
@@ -0,0 +1,51 @@
+"""
+32. Callable defaults
+
+You can pass callable objects as the ``default`` parameter to a field. When
+the object is created without an explicit value passed in, Django will call
+the method to determine the default value.
+
+This example uses ``datetime.datetime.now`` as the default for the ``pub_date``
+field.
+"""
+
+from django.db import models
+from datetime import datetime
+
+class Article(models.Model):
+    headline = models.CharField(maxlength=100, default='Default headline')
+    pub_date = models.DateTimeField(default=datetime.now)
+
+    def __str__(self):
+        return self.headline
+
+__test__ = {'API_TESTS':"""
+>>> from datetime import datetime
+
+# No articles are in the system yet.
+>>> Article.objects.all()
+[]
+
+# Create an Article.
+>>> a = Article(id=None)
+
+# Grab the current datetime it should be very close to the default that just
+# got saved as a.pub_date
+>>> now = datetime.now()
+
+# Save it into the database. You have to call save() explicitly.
+>>> a.save()
+
+# Now it has an ID. Note it's a long integer, as designated by the trailing "L".
+>>> a.id
+1L
+
+# Access database columns via Python attributes.
+>>> a.headline
+'Default headline'
+
+# make sure the two dates are sufficiently close
+>>> d = now - a.pub_date
+>>> d.seconds < 5
+True
+"""}