How to set a slot inside a FormValidationAction?

Rasa Open Source
1

Hi,

I am trying to set a new slot new_slot if the user reply to one of Form queries to fill slot_1 was with intent `affirm. I have this but it does not work:

def validate_slot_1(
        self,
        slot_value: Text,
        dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: DomainDict,
    ) -> Dict[Text, Any]:
        if slot_value is True:
            dispatcher.utter_message(response='test')
            return {"slot_new": True}
        elif slot_value is False:
            dispatcher.utter_message(response='test 2')
            return {"slot_new": False}
        else:
            dispatcher.utter_message(response='test 3')
            return {"slot_new": None}

How can I set a new slot using SlotSet() inside the validation functions?

2

You cannot use SlotSet() or events here.

What you’re doing should work.

  • Are you sure the action is executed? Try putting print() statements inside of it to check.
  • Is your slot called slot_1? The name of the method should be according to the slot’s name.
  • Try also validating the slot_1 slot. At least do return {"slot_new": True, "slot_1": slot_value} to return it as is
3

thanks @ChrisRahme for the help. When I set this slot_new it gets a value of true/false but it only lasts for that user response; after that, bot says new form query, and the slot_new appears as slot{“slot_new”:null}. How can I make sure the slot keeps its value until the end?

4

You must be setting the slot value somewhere else. Slots are supposed to be permanent.

Are you using Rasa Shell or Rasa X to talk to the bot? On Rasa X you can see every action, on Rasa Shell you should use --debug.

5

@ChrisRahme does that mean I cannot set a permanent slot inside a custom form validation action? It gets a value when user replies, but then automatically goes to ‘null’.

6

No. Slots do net get set to null unless you’re setting it to None somewhere else.

Use rasa shell --debug or Rasa X as suggested to see what’s actually happening to that slot.

7

@ChrisRahme thanks for your reply. I am using Rasa X and what I see as described: slot gets true/false value but in the next user response it automatically shows as slot{“slot_new”:null}. If you have any solution please let me know thanks

8

Weird. Please try seeing it on the shell

9

Was this solved? If yes, please mark the solution if it’s there already, or provide your own :slight_smile:

10

@userRasa03, I’m seeing the same issue. Did you find a way to solve this?