How to use FormAction?

DEVELByte · November 19, 2018, 5:02am

Is there a way to use optional filed or to set one of the multiple fields as required

I am looking for something like this

@staticmethod
def required_fields():
    # how can i access the slots in this function
    duration = tracker.get_slot("duration")
    return_date = calculate_return_date(departure_date, duration)
    SlotSet("retrun_date", retrun_date)
    return [
        EntityFormField("to", "to"),
        EntityFormField("from", "from"),
        EntityFormField("departure_date", "departure_date"),
        EntityFormField("return_date", "return_date")
        ]

what is the right way to achieve this?

Ghostvv · November 20, 2018, 9:51am

We recently released rasa_core and rasa_core_sdk 0.12.1 with the new forms, you can do it there by subclassing required_slots(tracker)

github.com

RasaHQ/rasa_core_sdk/blob/47106d959767148d15b328a3a38a95cd697e0616/rasa_core_sdk/forms.py#L34




class FormAction(Action):


def name(self):
    # type: () -> Text
    """Unique identifier of the form"""


    raise NotImplementedError("A form must implement a name")


@staticmethod
def required_slots(tracker):
    # type: (Tracker) -> List[Text]
    """A list of required slots that the form has to fill


        Use `tracker` to request different list of slots
        depending on the state of the dialogue
    """


    raise NotImplementedError("A form must implement required slots "
                              "that it has to fill")

Please see the docs on how to use the new forms

pragya-96 · January 11, 2019, 12:03pm

hey @Ghostvv can you please tell me how to use form action. I am doing this but my bot gets stuck once i ask pizza ordering query.please tell me whats wrong with my code.

my domain.yml file

intents:

order_pizza
greet
size
toppings
inform
affirm
goodbye
thankyou
default

entities:

size
toppings

slots: size: type: text toppings: type: text requested_slot: type: unfeaturized

templates: utter_greet:

‘Hello, how can I help you?’ #- ‘Hi, I am here to help.’ utter_affirm:
‘thanks for the details.your order is being processed’ utter_get_pizza_size:
‘What pizza size?’ utter_get_pizza_toppings:
‘What toppings would you like on your pizza?’ utter_default:
‘sorry!i couldnt understand you.please retry’ utter_thankyou:
‘thanks for connecting’ utter_goodbye:
‘ok…had a great conversation.would like to serve soon’ actions:
utter_greet
utter_affirm
utter_goodbye
utter_thankyou
utter_default
utter_get_pizza_size
utter_get_pizza_toppings
action_order_pizza
action_fill_size
action_fill_toppings

stories.md

default path

default
- utter_default

affirm path

affirm
- utter_affirm

thankyou path

thankyou
- utter_thankyou

story_path_1

order_pizza
- action_order_pizza
- slot{“requested_slot”: “size”}
inform{“size”: “small”}
- action_order_pizza
- slot{“requested_slot”: “toppings”}
inform{“toppings”: “olives”}
- action_order_pizza

my nlu.md

intent:order_pizza

want to book a pizza
pizza booking
book pizza
pizza
i want to book an order for pizza

intent:greet

hi
hii
hello
hey

regex:greet

hey[^\s]*

intent:default

bla bla
do you want to marry me
i hate you
i want something else
can you help me?
do you love me?
fuck you

intent:goodbye

goodbye
good bye
stop
end
farewell
Bye bye
have a good one

intent:affirm

great
right, thank you
correct
great choice
sounds really good
yes
yep
yeah
indeed
thats ok
ok
ok fine

intent:thankyou

thanks
thank you
thank you very much
nice
thx alot
thx
appreciated
thankx

synonym:cheesy

Cheese
Cheezy

intent:size

small
medium
i want small pizza
book me a small
small pizza
large
extra large
sml
lrg
big

intent: toppings

olives
[olives] on top
cheese
extra cheese
cheesy
book me a pizza with olives on top
book me a pizza with corn

actions.py

from rasa_core.actions import Action from rasa_core_sdk.events import SlotSet from rasa_core.actions.action import Action from rasa_core_sdk.forms import FormAction from rasa_core_sdk.forms import EntityFormField class ActionOrderPizza(Action): def required_fields(): return [ EntityFormField(“size”, “size”), EntityFormField(“toppings”, “toppings”) ] def name(self): return ‘action_order_pizza’ def run(self,dispatcher,tracker,domain): size = tracker.get_slot(“size”), toppings = tracker.get_slot(“toppings”) dispatcher.utter_message(“your pizza size of”) dispatcher.utter_message(size) dispatcher.utter_message(“and with toppings”) dispatcher.utter_message(toppings) dispatcher.utter_message(‘Ordering Pizza is completed! It should be with you soon :)’)

Ghostvv · January 11, 2019, 12:20pm

it looks like you use old FormAction what version of rasa_core and rasa_core_sdk do you use? It is impossible to read not indented code!

pragya-96 · January 14, 2019, 6:35am

Hey @Ghostvv thanks for listening. I am using rasa core version 0.12.2. here is my actions.py file

from rasa_core.actions import Action from rasa_core_sdk.events import SlotSet

class ActionOrderPizza(FormAction): RANDOMIZE = False

@staticmethod
def required_fields():
    return [
        EntityFormField("size", "size"),
        EntityFormField("toppings", "toppings")
    ]
def name(self):
    return 'action_order_pizza'
def submit(self,dispatcher,tracker,domain):
    size = tracker.get_slot("size"),
    toppings = tracker.get_slot("toppings")
    dispatcher.utter_message("your pizza size of")
    dispatcher.utter_message(size)
    dispatcher.utter_message("and with toppings")
    dispatcher.utter_message(toppings)

    dispatcher.utter_message('Ordering Pizza is completed! It should be with you soon :)')

Ghostvv · January 14, 2019, 11:52am

what version of rasa_core_sdk do you use? EntityFormField is not supported anymore

pragya-96 · January 14, 2019, 12:36pm

i am using rasa_core_sdk verion 0.12.1. if not EntityFormField then what is to be used?

Ghostvv · January 14, 2019, 12:37pm

Please check the docs: Slot Filling

capgos17 · August 8, 2019, 6:34am

hey @Ghostvv how can I use formAction in Node.js instede of python

Ghostvv · August 8, 2019, 7:53am

You need to implement all the methods in FormAction class in Node.js, make sure that you return the same jsons

capgos17 · August 9, 2019, 5:26am

Even if I skip the rasa-sdk for my project? Do you have any resource link for formAction In node @Ghostvv

Ghostvv · August 9, 2019, 2:57pm

Basically, you’d need to implement rasa_sdk in Node.js. I’m sorry, I don’t have any links for this

capgos17 · August 22, 2019, 9:06am

I’m implementing formAction in nodeJS. but fails while deactivating a form. any idea about form in node js or how to deactivate form using nodejs. I guess in formAction using rasa-SDK we need to give null in story. I tried same but it doesn’t work. and when a form is excuted it gives the same responce 10times with warning “circuit break tripped. stopped predicting more actions for sender default”

rohitnairtech · March 2, 2020, 9:43am

I have released a formAction SDK for Rasa in Nodejs. Adding more customisations : formAction SDK for Rasa in Nodejs

You can add issues and suggestions here: Issues · rohitnairtech/nodejs-formaction-sdk-rasa · GitHub

Please let me know what more to add!

capgos17 · March 2, 2020, 1:27pm

@shashank34

shashank34 · March 13, 2020, 10:08am

@capgos17 we had already done that. Thanks @rohitnairtech for publishing in npm community.

bjaldoshi · March 17, 2020, 5:14am

Hi @rohitnairtech do you know about implementation of RASA voice bot? I am facing issue there. As everything is executing well but might servers not getting connected. I am follwing this link: How to build a voice assistant with open source Rasa and Mozilla tools

noushad · June 8, 2020, 8:43pm

Did you resolve this? What is the error you are getting?

Topic		Replies	Views
Rasa Core: FormAction: Cannot access slots in the follow-up `utter_ask_SLOT` Rasa Open Source	25	3873	January 27, 2020
Optional slotting filling Rasa Open Source	3	777	June 13, 2019
FormAction issues Rasa Open Source	4	980	October 8, 2018
Rasa 2.0 Use of `FormAction` in future? Rasa Open Source	0	806	October 14, 2020
Optional slots in Form Action Rasa Open Source	3	3187	June 10, 2019