表单未在 Rasa 2.0 中激活

问题描述

我正在尝试在我的 rasa 聊天机器人中集成一个表单。 在 domain.yml 中，我包含了以下内容：

1. 我声明了插槽：

slots:
    question1:
      type: text
   question2:
     type: text
   question3:
     type: text

2. 表单应该发送给用户的问题：

     utter_ask_question1: 
       - text:" first question goes here"
     utter_ask_question2: 
       - text:" second question goes here"
     utter_ask_question3: 
       - text:" third question goes here"

3. 将表单定义为：

forms: 
    user_quiz_form:
    question1:
      - type: from_text
        # entity: date
    question2:
       - type: from_text
    question3:
       - type: from_text 

4. 操作部分还包含：

   actions:
      - action_submit
      - user_quiz_form

文件 rules.yml 包含：

   - rule: Activate quiz form
       steps:
       - intent: quiz
       - action: utter_quiz
       - action: user_quiz_form
       - active_loop: user_quiz_form
   - rule: Submit quiz form
     condition:
     - active_loop: user_quiz_form
    steps:
     - action: user_quiz_form
    - active_loop: null
    - slot_was_set:
      - requested_slot: null
    - action: action_submit

和 actions.py 是：

from typing import Any,Text,Dict,List
from rasa_sdk import Action,Tracker
from rasa_sdk.events import SlotSet,EventType
from rasa_sdk.executor import Collectingdispatcher
import webbrowser

class ValidateForm(Action):
    def name(self) -> Text:
        return "user_quiz_form"

    def run(
        self,dispatcher: Collectingdispatcher,tracker: Tracker,domain: Dict
    ) -> List[EventType]:
         required_slots = ["question1","question2","question3"]
        
        for slot_name in required_slots:
          if tracker.slots.get(slot_name) is None:
                # The slot is not filled yet. Request the user to fill this slot next.
             return [SlotSet("requested_slot",slot_name)]
        return [SlotSet("requested_slot",None)]

class ActionSubmit(Action):
    def name(self) -> Text:
        return "action_submit"
    def run(
        self,dispatcher,domain: "DomainDict",) -> List[Dict[Text,Any]]:
       print("****************SUBMIT*****************")
       dispatcher.utter_message(template="utter_quiz_thanks",date=tracker.slots.get("question1"))
       return []

当表单被触发时，它不会向用户提问，而是返回 utter_quiz_thanks 并将 None 作为 question1 值。

解决方法

这与您在 domain.yml 中使用的缩进相同吗？如果是这样，你就少了一些缩进；表单下方的插槽需要缩进（参见下面的示例）。我的猜测是您正确启动了表单，但由于缩进问题，您的助手将其视为包含 0 个问题的表单。

forms:
  restaurant_form:
    cuisine:
      - type: from_entity
        entity: cuisine
    num_people:
      - type: from_entity
        entity: number