def refresh(self, session=None, attrs=None):
"""Refresh this object."""
if not session:
session = Session.object_session(self)
if not session:
session = get_session()
session.refresh(self, attrs)
def expire(self, session=None, attrs=None):
"""Expire this object ()."""
if not session:
session = Session.object_session(self)
if not session:
session = get_session()
session.expire(self, attrs)
def delete(self, session=None):
"""Delete this object."""
self.deleted = True
self.deleted_at = datetime.datetime.utcnow()
if not session:
session = Session.object_session(self)
if not session:
session = get_session()
session.delete(self)
session.flush()
def save(self, session=None):
"""Save this object."""
if not session:
session = Session.object_session(self)
if not session:
session = get_session()
session.add(self)
try:
session.flush()
except IntegrityError as e:
if str(e).endswith('is not unique'):
raise DuplicateException(str(e))
else:
raise
def _session(context):
return context or get_session()
def _session(context):
return context or get_session()
