Waterfall prompt using activity.text instead of actually prompting user

问题

I have a dialog where a prompt in the first step is getting skipped. I determined that what is happening is that somehow step.context.activity.text is automatically being interpreted as the prompt response. For example, if I trigger the dialog with "Expedite my order", step.context.activity.text in the first step is "Expedite my order", the prompt is skipped, and step.result in the next step is "Expedite my order".

I tried creating a "buffer step" as step 1 that just did return await step.next(), but the same activity.text was then captured as the prompt response in step 2!

Interestingly, I created a mock dialog test with mocha and it did NOT exhibit these issues. I have other dialogs within the bot that also have a text prompt on step one and they are not exhibiting these issues either in mocha tests OR running in emulator (or deployed on Azure). I did note there is one difference within step.context: the dialogs that are working have step.context.responded = false and the one which is skipping the prompt has step.context.responded = true`. But I have no idea why this is set in one case but not others. This seems to be an important part of the puzzle.

I did "solve" this by setting step.context.activity.text = '' at the beginning of the step, but that seems like a bad practice. Any idea on why this is happening within this prompt? Below is my dialog code through that first step.

const { TextPrompt, ChoicePrompt, ChoiceFactory, ComponentDialog, WaterfallDialog } = require('botbuilder-dialogs');
const { oemLocatorHelper } = require('../helpers/oemLocatorHelper');

const WATERFALL_DIALOG = 'waterfallDialog2';
const CHOICE_PROMPT = 'choicePrompt';
const TEXT_PROMPT = 'textPrompt';
const ESCALATION_OPTIONS = ['Chat','Email','Call','No Thanks'];

class escalationDialog extends ComponentDialog {
    constructor(dialogId, userDialogStateAccessor, userState) {
        super(dialogId);

        this.addDialog(new ChoicePrompt(CHOICE_PROMPT));
        this.addDialog(new TextPrompt(TEXT_PROMPT));
        this.addDialog(new WaterfallDialog(WATERFALL_DIALOG, [
            this.promptAccount.bind(this),
            this.promptChannel.bind(this),
            this.promptSummary.bind(this)
        ]));

        this.initialDialogId = WATERFALL_DIALOG;

        // State accessors
        this.userDialogStateAccessor = userDialogStateAccessor;
        this.userState = userState;

    } // End constructor

    async promptAccount(step) {
        if (step.context.responded) {
            step.context.activity.text = '';
        }
        const userData = await this.userDialogStateAccessor.get(step.context, {});
        if (userData.accountNumber) {
            return userData.accountNumber;
        } else {
            return await step.prompt(TEXT_PROMPT, `To help me get you to the right agent, can you please provide me your account number?`);
        }
    }

EDIT: Should be step.context.activity.text, not step.activity.text. Updated in several spots. Also, the change now clears this value only if step.context.responded is true.

回答1:

I believe the problem is that your bot class is calling continueDialog on the same turn that it begins escalationDialog. I have commented on your private GitHub issue.

来源：https://stackoverflow.com/questions/59385126/waterfall-prompt-using-activity-text-instead-of-actually-prompting-user

标签

node.js

botframework