RASA dynamic validation of form

Rasa Open Source
1

Hi, I have created an insurance form that requires validation. I’m facing issues, particularly in running the action file I’m getting an indentation error. I have created slots in the domain file and my action file has a code as follows. Can someone help me figure out what’s wrong with this? class InsuranceForm(FormAction): def name(self): return “insurance_form”

def required_slots(self,tracker) -> List[Text]:
    return ["name","email","dateofbirth","number","address","zip"]
def slot_mappings(self) -> Dict[Text, Union[Dict, List[Dict]]]:
    return {
            "name": [
                self.from_text(),
            ],
            "email": [
                self.from_text(),
            ],
            "dateofbirth": [
                self.from_text(),
            ],
            "number": [
                self.from_text(),
            ],
            "address": [
                self.from_text(),
            ],
            "zip": [
                self.from_text(),
            ],
        }

def validate(self, dispatcher, tracker, domain):
    slot_values = self.extract_other_slots(dispatcher, tracker, domain)


    slot_to_fill = tracker.get_slot(REQUESTED_SLOT)

    if slot_to_fill:
	    slot_values.update(self.extract_requested_slot(dispatcher, tracker, domain))

    for slot, value in slot_values.items():
	    if slot == 'name':
		    if value.replace(" ","").isalpha() == False:
			    dispatcher.utter_template('utter_wrong_name', tracker)
			    slot_values[slot] = None
		    else:
			    dispatcher.utter_message("Hi {}".format(value))     
        elif slot == 'address':
		    if value.replace(" ","").isalpha() == False:
			    dispatcher.utter_template('utter_wrong_address', tracker)
			    slot_values[slot] = None
	    elif slot == 'dateofbirth':
		    try:
			    datetime.strptime(value, '%d-%m-%Y')
		    except ValueError:
		    	dispatcher.utter_template('utter_wrong_dob', tracker)
		    	slot_values[slot] = None
	    elif slot == 'email':
		    email = re.compile(r'(^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$)')
		    mo = email.search(value)
		    if mo == None:
			    dispatcher.utter_template('utter_wrong_email', tracker)
			    slot_values[slot] = None
	    elif slot == 'number':
		    if len(value) != 10 or value.isdigit() == False:
			    dispatcher.utter_template('utter_wrong_contact', tracker)
			    slot_values[slot] = None
	    elif slot == 'zip':
	    	if len(value) != 5 or value.isdigit() == False:
		    	dispatcher.utter_template('utter_wrong_zipcode', tracker)
		    	slot_values[slot] = None

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

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

	name=tracker.get_slot("name")
    dateofbirth=tracker.get_slot("dateofbirth")
    email=tracker.get_slot("email")
    contact=tracker.get_slot("number")
    address=tracker.get_slot("address")
    zipcode=tracker.get_slot("zipcode")
    dispatcher.utter_template("utter_insurance", tracker)    
    return []