session_db: cosmetics

session_db/pg_session_store.py

@@ -69,7 +69,6 @@ class PGSessionStore(sessions.SessionStore):
 
     @with_lock
     def _open_connection(self):
-        cnx = odoo.sql_db.db_connect(self._uri, allow_uri=True)
         try:
             # return cursor to the pool
             if self._cr is not None:
@@ -77,6 +76,7 @@ class PGSessionStore(sessions.SessionStore):
                 self._cr = None
         except Exception:  # pylint: disable=except-pass
             pass
+        cnx = odoo.sql_db.db_connect(self._uri, allow_uri=True)
         self._cr = cnx.cursor()
         self._cr._cnx.autocommit = True