Alexa自定义广告位类型:意图中没有值 [英] Alexa Custom Slot Type: No value in intent
问题描述
我已经将此问题发布到了亚马逊开发者论坛,但在那儿没有得到答案。我想从一开始就应该选择Stackoverflow:
I've already posted this question to the amazon developer forum but don't receive an answer there. I guess Stackoverflow should've been the first choice from the beginning:
根据我的理解,即使我使用自定义插槽类型,即使其可能值的列表中不包含语音词语音词仍传递给函数。该文档说
From my understanding if I use a Custom Slot Type even if the list of its possible values does not contain the spoken word the spoken word is still passed to the function. The documentation says
自定义广告位类型不等于枚举。如果口头语言理解系统可以识别,则列表外的值仍会返回。
A custom slot type is not the equivalent of an enumeration. Values outside the list may still be returned if recognized by the spoken language understanding system.
现在我有一个自定义广告位类型 LIST_OF_PERSONS
的值是 Matthias | Max
并说出
Now I have a Custom Slot Type LIST_OF_PERSONS
with values Matthias|Max
and an utterance of
EmployeeDetailsIntent {Person}
如果我称此为值不在 LIST_OF_PERSONS
该Intent仍被调用,但JSON不包含该广告位的值键:
If I call this intend with a value not in LIST_OF_PERSONS
the Intent still gets called but the JSON does not contain a "value" key for the Slot:
"request": {
"type": "IntentRequest",
"requestId": "EdwRequestId.a943e233-0713-4ea5-beba-d9287edb6083",
"locale": "de-DE",
"timestamp": "2017-03-09T14:38:29Z",
"intent": {
"name": "EmployeeDetailsIntent",
"slots": {
"Person": {
"name": "Person"
}
}
}
}
这是按设计工作还是错误?那我该如何在Intent中访问口语呢?由于未定义 this.event.request.intent.slots.Person.value
?
Is this "works as designed" or a bug? How do I access the spoken word in the Intent then? As this.event.request.intent.slots.Person.value
is undefined?
我的代码位于AWS中lambda和我正在使用nodejs alexa-sdk版本1.0.7。我的技能的语言是德语。
My code lives in AWS lambda and I'm using the nodejs alexa-sdk Version 1.0.7. The language of my Skill is German.
推荐答案
(免责声明:这篇文章总结了我自己的解决方法。它可能会也可能不会似乎对我有用,所以我想在这里简短地分享/记录它。)
(disclaimer: this post summarises my own "workaround". It might or might not be the "best way". Seems to have worked for me so thought I would share / document it here briefly)
我最近碰到类似的问题看起来像这样:
I've recently bumped into similar issues for an utterance that looks like this:
告诉我有关{townName}的信息
如果我说告诉我有关伦敦的事情
,它会起作用。
If I say "tell me about London"
, it works.
如果我说告诉我
(故意缺少 {townName}
),程序死亡(并返回JSON)看起来与您类似,但未定义 this.event.request.intent.slots.townName.value
)
If I say "tell me about"
(deliberately missing a {townName}
), the program "dies" (and returns a JSON looking similar to your one, with undefined this.event.request.intent.slots.townName.value
)
尽管我不是100%地确定这是否意味着功能(即我们需要编写更智能的代码来解决此问题)或问题(即Alexa团队需要解决或解决)。
Though I'm not 100% sure whether this is meant to be a "feature" (i.e. we need to write smarter code to work around this) or "problem" (i.e. Alexa team needs to address or fix). This scenario has caused a real issue when it came to the certification process for me recently.
为了解决这一问题,我最近实现了一个真正的问题。
To get through this, I've implemented a workaround (or fix, whatever you call it) to avoid Alexa from "dying" as a result of this edge case.
从Alexa skill-sample-nodejs-trivia index.js
文件,我发现了一个片段功能可以帮助我解决此问题(为简单起见,我对其示例进行了一些编辑):
From the Alexa skill-sample-nodejs-trivia index.js
file, I've found a snippet function that helped me work around this (I've edited it a bit for my example for simplicity):
function isAnswerSlotValid(intent) {
var answerSlotFilled = intent && intent.slots &&
intent.slots.townName && intent.slots.townName.value;
return answerSlotFilled
}
(即此函数返回 True
获取插槽 townName
和 False
的有效值(未定义/否则) 。
(i.e. this function returns True
for valid values for the slot townName
and and False
for undefined / otherwise).
在定义意图时,我可以使用此函数来解决空的插槽值情况:
When it comes to defining the intent, I could use this function to "get around" an empty slot value scenario:
var startHandlers = Alexa.CreateStateHandler(states.START,{
// bla bla bla//
"AnswerIntent": function() {
// handel missing slot value
var answerSlotValid = isAnswerSlotValid(this.event.request.intent);
if (answerSlotValid && moreConditions) {
// do something fun
}
else {
// handle empty slot scenario
}
}
// bla bla bla//
}
想知道是否有更好/更合适的解决方案可以更优雅地处理空/未定义的广告位。
Would be interested to see if there are better / more "proper" solutions to this to handle empty / undefined slots more elegantly.
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