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

django/db/models/query.py

@@ -332,7 +332,10 @@ class QuerySet(object):
                 return obj, True
             except IntegrityError, e:
                 transaction.savepoint_rollback(sid)
+                try:
                     return self.get(**kwargs), False
+                except self.model.DoesNotExist:
+                    raise e
 
     def latest(self, field_name=None):
         """

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:...
 """}