models.py 文件源码

def edited(self):
        """Determine whether Content has been edited.

        Because we do multiple saves in some cases on creation, for example for oEmbed or OpenGraph,
        and a remote content could be delivered multiple times within a short time period, for example via
        relay and original node, we allow 15 minutes before deciding that the content has been edited.

        TODO: it would make sense to store an "edited" flag on the model itself.
        """
        return self.modified > self.created + datetime.timedelta(minutes=15)