def save(self, session=None):
"""Save this object."""
if not session:
session = get_session()
# NOTE(boris-42): This part of code should be look like:
# sesssion.add(self)
# session.flush()
# But there is a bug in sqlalchemy and eventlet that
# raises NoneType exception if there is no running
# transaction and rollback is called. As long as
# sqlalchemy has this bug we have to create transaction
# explicity.
with session.begin(subtransactions=True):
session.add(self)
session.flush()
def get_session(autocommit=True, expire_on_commit=False):
"""Helper method to grab session."""
return session.get_session(autocommit=autocommit, expire_on_commit=expire_on_commit, sqlite_fk=True)