Bot Framwork：多步瀑布
我想发送一个类似于这个的机器人
"[Person] wants to meet at [Place] at [Date]" 然而，如果人们错过了一些信息，我想让机器人一块一块地去索要。
例如，如果一个人写道：
"Let's meet!"
机器人会提出一系列问题来满足所有的数据要求。 就像是：
- 我会和谁见面？
- 他们应该在哪里见面？
- 什么date和时间？
如果这个人问：
"Alex would like to meet tomorrow"
那么机器人只会问
"Where should they meet?"
一旦所有需要的数据完成，它会发送一个响应，如：
"Great, I will meet [Person] in [Location] at [DateTime]"
我一直在尝试这样的方法，运气不好，并得到“太多的电话session.EndDialog（）”错误：
dialog.on('Meeting', [ function (session, results, next) { var person = builder.EntityRecognizer.findEntity(results.entities, 'Person'); if(!person){ builder.Prompts.text(session, prompts.meetingPersonMissing); } else { next({ response: { person: person.entity } }); } }, function (session, results, next) { var location = builder.EntityRecognizer.findEntity(results.entities, 'location'); if(!location){ builder.Prompts.text(session, prompts.meetingLocationMissing); } else { // Pass title to next step. next({ response: { person: results.person, location: location.entity } }); } }, function (session, results, next) { var time = builder.EntityRecognizer.findEntity(results.entities, 'builtin.datetime.date'); if(!time){ builder.Prompts.text(session, prompts.meetingTimeMissing); } else { next({ response: { person: results.person, location: results.location, time: time.entity } }); } }, function (session, results) { if (results.response) { session.send(prompts.meetingSubmited); } else { session.send(prompts.canceled); } } ]);
不成功的尝试＃2（不再传递来自'next（）'的数据）。 这导致相同的EndDialog错误
dialog.on('Meeting', [ function (session, results, next) { var person = builder.EntityRecognizer.findEntity(results.entities, 'Person'); var location = builder.EntityRecognizer.findEntity(results.entities, 'location'); var time = builder.EntityRecognizer.findEntity(results.entities, 'builtin.datetime'); session.messageData = { person: person || null, location: location || null, time: time || null } if(!session.messageData.person){ builder.Prompts.text(session.messageData.person, prompts.meetingPersonMissing); } else { next(); } }, function (session, results, next) { if(!session.messageData.location){ builder.Prompts.text(session.messageData.location, prompts.meetingLocationMissing); } else { next(); } }, function (session, results, next) { if(!session.messageData.time){ builder.Prompts.text(session.messageData.time, prompts.meetingTimeMissing); } else { next(); } }, function (session, results) { debugger; if (results.response) { session.send('Meeting scheduled'); } else { session.send(prompts.canceled); } } ]);
更新＃3：在这个版本中，如果话语不包含任何相关的实体，则效果很好。 例如“我们可以见面吗？” 工作正常。
这个版本的问题是当我尝试“我们明天可以见面吗？”。 明天被成功识别为date时间实体，但是一旦它碰到这个块中的next() ：
function getDate(session, results){ session.dialogData.topic = results.response; if(session.dialogData.date){ next(); }else{ builder.Prompts.time(session, "What date would you like to meet?"); } }
它失败，并给我相同的Too many calls to to session.EndDialog()问题
dialog.on('Meeting', [meetingQuery, getDate, getTime, respondMeeting]); function meetingQuery(session, results){ if (results.response) { session.dialogData.date = builder.EntityRecognizer.resolveTime([results.response]); } session.userData = { person: session.message.from.name } builder.Prompts.text(session, "Hi "+ session.userData.person +"!\n\n What is the meeting in reference too?"); } function getDate(session, results){ session.dialogData.topic = results.response; if(session.dialogData.date){ next(); }else{ builder.Prompts.time(session, "What date would you like to meet?"); } } function getTime(session, results){ if (results.response) { session.dialogData.date = builder.EntityRecognizer.resolveTime([results.response]); } if(session.dialogData.time){ next(); }else{ builder.Prompts.choice(session, "Your professor has the follow times availeble?", ["1pm", "2pm", "3pm"]); } } function respondMeeting(session, results){ var time = results.response; session.send("Your meeting has been schedueld for " + session.dialogData.date + " at " + time.entity + ". Check your email for the invite."); }
试试这个，它适用于我的机器人。
dialog.on('QuieroQueMeLlamen', [ function (session, args) { var Telefono = builder.EntityRecognizer.findEntity(args.entities, 'Usuario::Telefono'); if(!Telefono){ builder.Prompts.number(session, "Dame un número telefónico donde pueda llamarte una de nuestras enfermeras (sin espacios ni caracteres: ej: 3206907529)"); } }, function (session, results) { if (results.response) { //IF STRLEN es un celular entonces: session.send("Te estamos llamando al número %s, por favor contesta", results.response); } } ]);
您不应该将parameter passing给next（）函数，而是使用session.YOUVARIABLES通过瀑布来存储数据。
就像是 ：
function (session, results, next) { var person = builder.EntityRecognizer.findEntity(results.entities, 'Person'); if(!person){ builder.Prompts.text(session, prompts.meetingPersonMissing); } else { session.person = person.entity next(); } }
我想你应该访问
results.response.person
代替
results.person
这同样适用于这个瀑布的其他closures。