hooks.py 文件源码

def after(action):
    """Decorator to execute the given action function *after* the responder.

    Args:
        action (callable): A function of the form
            ``func(req, resp, resource)``, where `resource` is a
            reference to the resource class instance associated with the
            request

    """

    def _after(responder_or_resource):
        if isinstance(responder_or_resource, six.class_types):
            resource = responder_or_resource

            for method in HTTP_METHODS:
                responder_name = 'on_' + method.lower()

                try:
                    responder = getattr(resource, responder_name)
                except AttributeError:
                    # resource does not implement this method
                    pass
                else:
                    # Usually expect a method, but any callable will do
                    if callable(responder):

                        def let(responder=responder):
                            do_after_all = _wrap_with_after(action, responder)

                            setattr(resource, responder_name, do_after_all)

                        let()

            return resource

        else:
            responder = responder_or_resource
            do_after_one = _wrap_with_after(action, responder)

            return do_after_one

    return _after


# -----------------------------------------------------------------------------
# Helpers
# -----------------------------------------------------------------------------