serializers.py 文件源码

def get_memberships(self, obj):
        """
        Retrieve all nodes where user is a member.
        Returns an iterable of objects containing the name and id,
        plus a custom field is_recoverable for each workspace.
        A workspace is recoverable if it is share among any other user
        and its membership status is MemberStatusField.STATUS_MEMBER
        :return :dict {'workspace_id': int, 'workspace_name': str,
        'is_recoverable': bool}
        """
        nodes = Node.objects.all_for_user(obj.created_by)
        return imap(
            lambda node:
            {'workspace_id': node.id, 'workspace_name': node.name,
             'is_recoverable': LostKey.objects.is_recoverable(
                 node.id, obj.created_by)},
            nodes)