[dak/master] If positional argument is None, modify it.s

[Chris Lamb <lamby@debian.org>]

---
 daklib/dbconn.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/daklib/dbconn.py b/daklib/dbconn.py
index 39285f0..adecc38 100755
--- a/daklib/dbconn.py
+++ b/daklib/dbconn.py
@@ -83,6 +83,9 @@ def session_wrapper(fn):
             else:
                 # Session is last argument in args
                 session = args[-1]
+                if session is None:
+                    session = args[-1] = DBConn().session()
+                    private_transaction = True
 
         if private_transaction:
             session.commit_or_flush = session.commit
-- 
1.6.3.3