about.py 文件源码

def deferred_render_DELETE(self, request):
        """
        Delete a tag from an object. Return a Deferred that fires with None
        once the facade has done the deletion.

        The following code, apart from the yield self._setObjectId(), is
        taken verbatim from deferred_render_DELETE in objects.py. So if
        you change this code, you'll likely need to change that, and vice
        versa.

        @param request: The HTTP request.

        @return: A C{Deferred} that fires with C{None} once the request has
                 completed.
        """
        usage = registry.findUsage(httpAboutCategoryName, 'DELETE',
                                   AboutTagInstanceResource)
        registry.checkRequest(usage, request)
        yield self._setObjectId()
        yield self.facadeClient.deleteTagInstance(
            self.session, self.path, self.objectId)
        request.setResponseCode(usage.successCode)
        defer.returnValue(None)