views.py 文件源码

def _get_object(request, nickname, pk):
        # TODO DUP CODE. Must refactor this.
        try:
            mail = get_object_or_404(Mail, pk=pk)
            can_read = mail.can_read(request)
            if mail.recipient != nickname:
                return None
            if can_read == (True, None):
                mail.read()
                return mail
            elif can_read == (False, {CannotReadReasons.secret_code}):
                return None
            return None
        except Mail.DoesNotExist:
            return None