Fixed #6970 -- Raise the original IntegrityError when all required fields aren't specified in get_or_create instead of a misleading DoesNotExist error, thanks deadwisdom.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8398 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/get_or_create/models.py

@@ -50,4 +50,11 @@ True
 False
 >>> Person.objects.count()
 2
+
+# If you don't specify a value or default value for all required fields, you
+# will get an error.
+>>> p, created = Person.objects.get_or_create(first_name='Tom', last_name='Smith')
+Traceback (most recent call last):
+...
+IntegrityError:...
 """}