Get all sub-resources
        :param include_deactivated: Include deactivated resources in response

        :returns: list of SubResource instances
        :raises: SocketError, CouchException

def all(cls, include_deactivated=False):
        """
        Get all sub-resources
        :param include_deactivated: Include deactivated resources in response

        :returns: list of SubResource instances
        :raises: SocketError, CouchException
        """
        if include_deactivated:
            resources = yield cls.view.get(include_docs=True)
        else:
            resources = yield cls.active_view.get(include_docs=True)

        result = []

        for resource in resources['rows']:
            parent = cls.parent_resource(**resource['doc'])
            result.append(cls(parent=parent, **resource['value']))

        raise Return(result)