notification.created_on = datetime.datetime.now()

        for recipient in recipients:

            un = UserNotification()

            un.notification = notification

            un.user_id = recipient.user_id

            # Mark notifications to self "pre-read" - should perhaps just be skipped

            if recipient == created_by:

                un.read = True

            Session().add(un)

        Session().add(notification)

        return notification

    @property

    def description(self):

        from kallithea.model.notification import NotificationModel

        return NotificationModel().make_description(self)

class UserNotification(Base, BaseModel):

    __tablename__ = 'user_to_notification'

    __table_args__ = (

        UniqueConstraint('user_id', 'notification_id'),