FormAction has no such method: extract()

Rasa Open Source
1

Greetings.

I have have been using and loving the Rasa Stack for quite some time now.

I have encountered problems during FormAction validation. The examples given here and here use a method called extract() to get events (the last line of the below code snippet).

def validate(self, dispatcher, tracker, domain):
    # type: (CollectingDispatcher, Tracker, Dict[Text, Any]) -> List[Dict]
    """"Validate extracted requested slot else raise an error"""
    slot_to_fill = tracker.get_slot(REQUESTED_SLOT)

    # extract requested slot from a user input by using 'slot_mapping'
    events = self.extract(dispatcher, tracker, domain)

However the FormAction class has no such method (rasa_core; versions 0.12.3 and 0.12.4). As a possible hack, I have tried to use the extract_requested_slot() method, which returns a dictionary of slot: value pairs. This however is in conflict with line 388 of forms.py, which seems to expect a different data format. Not quite sure how to proceed. Any insight would be much appreciated.

2

Yes, we changed the inner logic there, but didn’t update the docs. The master version is updated now: Slot Filling

1 Like
3

Thank you. My validation process now runs smoothly