view.py 文件源码

def dispatchResult(self, request, node, result):
        """Check a given result from handling a node and look up a NodeMutator
        adapter which will convert the result into a node and insert it
        into the DOM tree. Return the new node.
        """
        if not isinstance(result, defer.Deferred):
            if node.parentNode is not None:
                node.parentNode.replaceChild(result, node)
            else:
                raise RuntimeError, "We're dying here, please report this immediately"
        else:
            self.outstandingCallbacks += 1
            result.addCallback(self.dispatchResultCallback, request, node)
            result.addErrback(self.renderFailure, request)
            # Got to wait until the callback comes in
        return result