Regarding Slots in Rasa 3.0

Rasa Open Source
1

How to validate Slots using Forms in rasa 3.0?

domain.yml:

slots:
  first_name:
    type: text
    influence_conversation: false
    mappings:
    - type: custom
      
  last_name:
    type: text
    influence_conversation: false
    mappings:
    - type: custom

forms:
  personal_details_form:
    required_slots:
      - first_name
      - last_name


responses:
  utter_greet:
  - text: "Hey! How are you?"

  utter_ask_first_name:
  - text: "Please Enter Your *First Name*"

  utter_ask_last_name:
  - text: "Please Enter Your *Last Name*"
  
  utter_cheer_up:
  - text: "Here is something to cheer you up:"
    image: "https://i.imgur.com/nGF1K8f.jpg"

  utter_goodbye:
  - text: "Bye"

  utter_iamabot:
  - text: "I am a bot, powered by Rasa."

actions.py:

class ValidatePersonalInformation(FormValidationAction):
    def name(self) -> Text:
        return "validate_personal_details_form"

    def validate_first_name(
        self,
        slot_value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: DomainDict
    )-> Dict[Text,Any]:
        print("First Name",slot_value)
        return {"first_name":slot_value} 
        # if len(first_name) <= 20:
        #     return {"first_name":slot_value,"invalid_form_count":None} 
        # else:
        #     return HelperServices.invalid_count_step_fun(tracker,dispatcher,"first_name")

    def validate_last_name(
        self,
        slot_value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: DomainDict
    )-> Dict[Text,Any]:
        print("Last Name:",slot_value)
        return {"last_name":slot_value}
        # if len(last_name) <= 15:
        #     return {"last_name":slot_value,"invalid_form_count":None}
        # else:
        #     return HelperServices.invalid_count_step_fun(tracker,dispatcher,"email")

stories.py:

version: "3.0"

stories:

- story: Personal Details
  steps:
  - intent: greet
  - action: utter_greet
  - action: personal_details_form
2

What’s the problem you’re facing?

3 
I => "Hi"
chatbot => "Please Enter Your *First Name*"
I => "Chittaranjan"
chatbot = > "Please Enter Your *First Name*"

and When I am giving the Chittaranjan as First Name to the chat bot that value is not stored in the slot first_name. So, Can I get help to resolve this issue. Actually I’m not getting actual solution in rasa 3.0 for this scenario.

4

Are there any errors appearing the the terminals of rasa shell and rasa run actions?

5

No

Screenshot from 2021-12-10 12-12-46
Screenshot from 2021-12-10 12-12-461852Ă—1053 297 KB
Screenshot from 2021-12-10 12-12-56
Screenshot from 2021-12-10 12-12-561854Ă—1055 182 KB
Please check this 2 screenshots

6

It not showing next utter message and previously provided value is not stored in request_slot:first_name

7

Can I get quick reply?

8

Please be patient, we are volunteers here.

Can you share your form activation story/rule? Or is there only the one you shared above?

9

Screenshot from 2021-12-10 12-44-05
Screenshot from 2021-12-10 12-44-051854Ă—1055 94 KB
I Kept Stories as it is.

10

Please activate the forms as per the docs.

1 Like
11

Screenshot from 2021-12-10 12-46-51
Screenshot from 2021-12-10 12-46-511854Ă—1055 183 KB
Here is 2 rule policy which one I should used

12

Delete lines 47+ since they’re just duplicates and uncomment the rest

13

ok

14

Still, I’m getting same issue

15

Can you show me your rules?

16

Yes

Screenshot from 2021-12-10 16-13-44
Screenshot from 2021-12-10 16-13-441854Ă—1055 99.1 KB

17

Hello @chittaranjanmore and welcome on forum! Can you confirm please this scenario:

I => "Hi"
chatbot => "Please Enter Your *First Name*"
I => "Chittaranjan"
chatbot = > "Your name is Chittaranjan"

That’s what you required as the response from the chatbot? Please update us.

Few observations and suggestions:

  1. I hope you mentioned the “validate_personal_details_form” under the actions in domain.yml
  2. hope you mentioned the utterance for the response you are expecting in domain.yml and same in stories.yml ?

For example as per demo use only:


  utter_slots_values:
  - text: I will remember that your name is {first_name} {last_name}!

- story: Personal Details
  steps:
  - intent: greet
  - action: utter_greet
  - action: personal_details_form
  - action: utter_slots_values

OR

Rules.yml

- rule: Submit form
  condition:
  - active_loop: personal_details_form
  steps:
  - action: personal_details_form
  - active_loop: null
  - slot_was_set:
    - requested_slot: null
  - action: utter_slots_values

For more details please ref this link: Forms OR See this Github Repo: https://github.com/RasaHQ/rasa-3.x-form-examples and example for validation.

Tip: Even try delete the older save models, if you think everything is fine and re-train the model again and run.

I hope this will help you to solve your issue.

18

You have not done that… Please read the whole docs and not the first two lines only.

- rule: Submit personal_details_form
  condition:
  - active_loop: personal_details_form
  steps:
  - action: personal_details_form
  - active_loop: null
  - slot_was_set:
    - requested_slot: null
  - action: action_submit_personal_details_form
19

ok

20

@chittaranjanmore is this issue persist for you or you were able to solve with the suggestion given my me or Chris?

1 Like