node.js - 在提示中间中断的对话框仅从提示步骤开始处恢复

Question

我正在尝试设计一个订餐机器人。有一个“orderDinner”对话框，它只有两个功能——>提示文本和处理响应。在“orderDinner”对话框的上下文中，beginDialogAction 是为了触发“alcohol”而完成的。它调用一个新对话框“checkAge”。我想要的是在 checkAge 完成并验证年龄后，“orderDinner”对话框应该从步骤 2 恢复，但它总是从步骤 1 开始。下面是代码:

bot.dialog('orderDinner', [
function (session, args){
    let promptmessage;
    if (args && args.resumed == true) {
        promptmessage = 'What else would you like to add?';
    } else {
        promptmessage = 'What would you like to order today?';
    }
    promptmessage += '(_type done when no more items to add_)';
    builder.Prompts.text(session, promptmessage);
},
function (session, results, args) {
    session.send(`${results.response} added to dinner cart!`);
    session.replaceDialog('orderDinner', {
        resumed : true
    });
}
]).beginDialogAction('checkAge', 'checkAge', {
    matches: /^alcohol$/i
}).beginDialogAction('doneOrderDinner', 'doneOrderDinner', {
    matches: /^done$/i
})

bot.dialog('doneOrderDinner',[
    (session) => {
        session.send("Food will be on your way");
        session.replaceDialog('mainBotMenu');
    }
])

bot.dialog('checkAge', [
    (session, result) => {
        builder.Prompts.number(session, 'Please enter your age');
    },
    (session, result) => {
        let canGetAlcohol = false;
        if(result.response > 18) {
            session.send('You can get alcohol');
            canGetAlcohol = true;
        } else {
            session.send('Too young for alcohol');
        }
        const dialogResult = { resumed : true, canGetAlcohol : canGetAlcohol }
        session.endDialogWithResult(dialogResult)
    }
]);

有什么办法可以在不破坏流程的情况下实现这一目标吗？现在，消息:永远不会打印“酒精添加到购物车”

Answer 1

您在 orderDinner 对话框中的函数中传递了错误的参数，该函数应该是实现 IDialogWaterfallStep 接口(interface)的对话框或对话框数组，并且 IDialogWaterfallStep 如下所示:

export interface IDialogWaterfallStep {
    /**
     * @param session Session object for the current conversation.
     * @param result
     * * __result:__ _{any}_ - For the first step of the waterfall this will be `null` or the value of any arguments passed to the handler.
     * * __result:__ _{IDialogResult}_ - For subsequent waterfall steps this will be the result of the prompt or dialog called in the previous step.
     * @param skip Function used to manually skip to the next step of the waterfall.
     * @param skip.results (Optional) results to pass to the next waterfall step. This lets you more accurately mimic the results returned from a prompt or dialog.
     */
    (session: Session, result?: any | IDialogResult<any>, skip?: (results?: IDialogResult<any>) => void): any;
}

因此，在您的代码中，参数resumed 应该位于变量results 中。现在您可以修改您的代码，例如如下所示:

function (session, args){
    let promptmessage;
    if (args && args.resumed) {
        promptmessage = 'What else would you like to add?';
    } else {
        promptmessage = 'What would you like to order today?';
    }
    promptmessage += '(_type done when no more items to add_)';
    builder.Prompts.text(session, promptmessage);
},
function (session, results) {
    session.send(`${results.response} added to dinner cart!`);
    session.replaceDialog('orderDinner', {
        resumed : true
    });
}