def add_session_to_request(event):
event.request.time = time.time()
event.request.now = time.time
event.request.db = Session()
event.request.queries = 0
# The listener is not yet deleted after the request completes,
# as this is not implemented in sqlalchemy. Therefore, the
# closure would contain a reference to the event as long
# as the connection to the database is active, which
# creates a memory leak. As long as the listener cannot be
# removed, we have to use a weak reference.
weak_event = weakref.ref(event)
def before_execute(conn, clauseelement, multiparams, params):
wevent = weak_event()
if wevent:
wevent.request.queries += 1
saevent.listen(event.request.db.get_bind(), "before_execute",
before_execute)
def callback(request):
request.db.rollback()
event.request.add_finished_callback(callback)
user_id = security.authenticated_userid(event.request)
if user_id is not None:
event.request.user = event.request.db.query(User).get(user_id)
else:
event.request.user = None
event.request.userInfo = utils.UserInfo(event.request.user)
event.request.permissionInfo = utils.PermissionInfo(event.request)
def add_request_attributes(event):
# Add database session
event.request.db = event.request.registry.db_maker()
def callback(request):
request.db.rollback()
event.request.add_finished_callback(callback)
# Add user objects
event.request.user = None
if event.request.identity is not None:
event.request.user = event.request.identity['user']
event.request.userInfo = utils.UserInfo(event.request.user)
event.request.permissionInfo = utils.PermissionInfo(event.request)
# Add Javascript and CSS
event.request.javascript = list()
event.request.css = list()
# Add config
event.request.config = muesli.config