Warning: How to set slot correctly?

Rasa Open Source
1

Hi

How do I set slot values hard? I think the way I do it (see below) is nor correct, since I get warnings (see below). However, the bot seems to work correctly. Maybe it is just a RASA buck. I am working on the latest version rasa==1.6.1. The problem was not there for previous version. Can you spot what I am doing wrong? Or maybe everything is correct?

I want to ask for specific user informations:

  • What is your first name?
  • What is you last name?
  • What is your street name?
  • What is your house number?

Therefore I use a custom form which asks the user to get all these data.

I am not sure, how the value which is given by the user is stored in the slot.

This is what I do:

domain.yml:

intents:
- name
- name_last
- street_name
- house_number

entities:
- name
- name_last
- street_name
- house_number

slots:
  name:
    type: unfeaturized
  name_last:
    type: unfeaturized
  street_name:
    type: unfeaturized
  house_number:
    type: unfeaturized

actions:
   - utter_ask_name
   - utter_ask_name_last
   - utter_ask_street_name
   - utter_ask_house_number

forms:
- authenticate_form

templates:

  utter_ask_name:
    - text: What is your first name?
      buttons:
        - title: "FirstName"
          payload: "name"

  utter_ask_name_last:
    - text: What is your last name?
      buttons:
        - title: "LastName"
          payload: "name_last"

actions.py:


class AuthenticateForm(FormAction):

    def name(self):
        # type: () -> Text
        return "authenticate_form"

    @staticmethod
    def required_slots(tracker):
        # type: () -> List[Text]

        return ["name", "name_last", "street_name", "house_number"]

    def submit(self, dispatcher, tracker, domain):
        # type: (CollectingDispatcher, Tracker, Dict[Text, Any]) -> List[Dict]
        """
        Define what the form has to do after all required slots are filled
        """
        return []

    def slot_mappings(self):
        # type: () -> Dict[Text: Union[Dict, List[Dict]]]

        return {
            "name": [self.from_entity(entity="name", not_intent=["chitchat"])],
            "name_last": [self.from_entity(entity="name_last", not_intent=["chitchat"])],
            "street_name": [self.from_entity(entity="street_name", not_intent=["chitchat"])],
            "house_number": [self.from_entity(entity="house_number", not_intent=["chitchat"])]
        }

    def validate(self,
                 dispatcher: CollectingDispatcher,
                 tracker: Tracker,
                 domain: Dict[Text, Any]) -> List[Dict]:

     .....
         for slot, value in slot_values.items():

            if slot == 'name':

                if ...:
                    slot_values[slot] = value
                else:
                    slot_values[slot] = None

            if slot == 'street_name':

                if ...:
                    slot_values[slot] = value
                else:
                    slot_values[slot] = None

            ....

        return [SlotSet(slot, value) for slot, value in slot_values.items()]

stories.md:

## story_form_happy_path
- authenticate_form
- form{"name": "authenticate_form"} 
- slot{"name": "Sam"}    
- slot{"name_last": "Johns"} 
- slot{"street_name": "Gartenstrasse"}
- form{"name": null}

This approach works, but I get the following warnings:

UserWarning: Interpreter parsed an intent 'name:' that is not defined in the domain.

UserWarning: Interpreter parsed an intent 'name_last:' that is not defined in the domain.

UserWarning: Interpreter parsed an intent 'street_name:' that is not defined in the domain.

UserWarning: Interpreter parsed an intent 'house_number:' that is not defined in the domain.

This is strange, since these intents are clearly defined in my domain-file. So, how do I set the slot value correctly?

2

Run the rasa data validate command and see if it reports any errors.