导航如何与LUIS子对话框一起使用? [英] How does navigation work with LUIS subdialogs?

查看：54 发布时间：2020/5/4 8:06:34 bots botframework microsoft-cognitive luis azure-cognitive-services

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问题描述

我有一个问题.不幸的是，网络上的所有样本都太浅，不能很好地覆盖这个问题:

I have a question... Unfortunately all the samples on the web are too shallow and don't really cover this well:

我有一个扩展LuisDialog的RootDialog.这个RootDialog负责弄清楚用户想要做什么.可能有很多事情，但其中之一将是启动新订单.为此，RootDialog会将调用转发给NewOrderDialog，NewOrderDialog的职责是弄清楚一些基本细节(用户想订购什么，他想使用哪个地址)，最后它将确认命令并返回到RootDialog.

I have a RootDialog that extends the LuisDialog. This RootDialog is responsible for figuring out what the user wants to do. It could be multiple things, but one of them would be initiating a new order. For this, the RootDialog would forward the call to the NewOrderDialog, and the responsibility of the NewOrderDialog would be to figure out some basic details (what does the user want to order, which address does he like to use) and finally it will confirm the order and return back to the RootDialog.

RootDialog的代码非常简单:

The code for the RootDialog is very simple:

[Serializable]
public class RootDialog : LuisDialog<object>
{
    public RootDialog() : base(new LuisService(new LuisModelAttribute(ConfigurationManager.AppSettings["LuisAppId"], ConfigurationManager.AppSettings["LuisAPIKey"], domain: "westus.api.cognitive.microsoft.com")))
    {
    }

    [LuisIntent("Order.Place")]
    public async Task PlaceOrderIntent(IDialogContext context, LuisResult result)
    {
        await context.Forward(new NewOrderDialog(), OnPlaceOrderIntentCompleted, context.Activity, CancellationToken.None);

        context.Wait(MessageReceived);
    }

    private async Task OnPlaceOrderIntentCompleted(IDialogContext context, IAwaitable<object> result)
    {
        await context.PostAsync("Your order has been placed. Thank you for shopping with us.");

        context.Wait(MessageReceived);
    }
}

我还为NewOrderDialog设计了一些代码:

I also had some code in mind for the NewOrderDialog:

[Serializable]
public class NewOrderDialog : LuisDialog<object>
{
    private string _product;
    private string _address;

    public NewOrderDialog() : base(new LuisService(new LuisModelAttribute(ConfigurationManager.AppSettings["LuisAppId"], ConfigurationManager.AppSettings["LuisAPIKey"], domain: "westus.api.cognitive.microsoft.com")))
    {
    }

    [LuisIntent("Order.RequestedItem")]
    public async Task RequestItemIntent(IDialogContext context, LuisResult result)
    {
        EntityRecommendation item;
        if (result.TryFindEntity("Item", out item))
        {
            _product = item.Entity;
            await context.PostAsync($"Okay, I understood you want to order: {_product}.");
        }
        else
        {
            await context.PostAsync("I couldn't understand what you would like to buy. Can you try it again?");
        }

        context.Wait(MessageReceived);
    }

    [LuisIntent("Order.AddedAddress")]
    public async Task AddAddressIntent(IDialogContext context, LuisResult result)
    {
        EntityRecommendation item;
        if (result.TryFindEntity("Address", out item))
        {
            _address = item.Entity;
            await context.PostAsync($"Okay, I understood you want to ship the item to: {_address}.");
        }
        else
        {
            await context.PostAsync("I couldn't understand where you would like to ship the item. Can you try it again?");
        }

        context.Wait(MessageReceived);
    }
}

列出的代码不起作用.输入Order.Place意图后，它立即执行成功"回调，然后引发此异常:

The code as listed doesn't work. Upon entering the Order.Place intent, it immediately executes the 'success' callback, and then throws this exception:

异常:IDialog方法执行完成，并通过IDialogStack指定了多个恢复处理程序. ['text/plain'类型的文件]

Exception: IDialog method execution finished with multiple resume handlers specified through IDialogStack. [File of type 'text/plain']

所以我有几个问题:

如何解决我得到的错误?
进入NewOrderDialog后，如何检查我们是否已经知道产品和地址，以及是否未提示他们正确的信息?
即使我未调用诸如context.Done()之类的东西，为什么NewOrderDialog也被关闭?我只希望在收集所有信息并确认订单后将其关闭.

导航如何与LUIS子对话框一起使用? [英] How does navigation work with LUIS subdialogs?

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导航如何与LUIS子对话框一起使用? [英] How does navigation work with LUIS subdialogs?

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