Set slot value in custom action

Rasa Open Source
1

Hey

My goal is to set the slot value directly in my custom action.

stories.md

## story_greet      
* greet 
 - action_check_working_hours
 -  slot{"service_time" : "online"}
 - utter_introduction
 - utter_how_can_I_help_you 

## story_greet_2      
* greet 
 - action_check_working_hours
 - slot{"service_time" : "offline"}
-  utter_bye

## more_stories
*how_much
- utter_money

domain.yml

intents:
 - greet
 - how_much

slots:
  service_time:
    type: categorial 
    values:
    - online
    - offline  

actions:
 - utter_introduction
 - utter_how_can_I_help_you 
 - utter_money
-  action_check_working_hours

templates:

utter_introduction:
- text: "hi, I am your bot."

utter_how_can_I_help_you 
- text: "My dear customer. How can I help you?"

utter_money:
- text: "the price is only 1 Dollar"

-utter_night:
- text: "Sorry my dear customer. Our service time starts at 7am and ends at 7 pm. This chat will end now. Please contact us later."

-utter_bye:
- text: "Goodbye"

actions.py

class CheckWorkingHours(Action): 
    def name(self): # type: () -> Text 
        return "action_check_working_hours"    


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

        now = dt.datetime.now()
        today18pm = now.replace(hour=18, minute=0, second=0, microsecond=0)
        today13am = now.replace(hour=13, minute=0, second=0, microsecond=0)
        if today13am < now < today18pm:
            message = 'Sorry, we are offline.'
            service='offline'
            #service=tracker.get_slot('online')
        else:
            message = 'We are open. How can I help you?'
            service='online'
            #service=tracker.get_slot('offline')
    
        dispatcher.utter_message(message)
        #return []
        return[SlotSet("service_time", service)]

Problem:

I get this error message: TypeError: 'NoneType' object is not callable

I guess, the way I set my slots is not correct. Can anybody help me with that?

1 Like
2

Are you importing Slotset into your actions.py?

3

We’re gonna need bigger stacktrace here. Which line throws this error exactly?

As an aside, why is there 18pm? Why even mix 24 hour clock and AM/PM?

4

@akshay2000 I think this was my fault. I have provided an example of comparing different times for the Thread Opener and I think he copy pasted this sample :slight_smile:

@Chatbot_Ra As already questioned - do you import:

from rasa_sdk.events import SlotSet

? If not, you should do it. This won’t work:

service=tracker.get_slot(‘online’)

because your slot is service_time and you are calling it upon a value of the slot but I think as you commented it out, you already got that.

The least I could assume is, that you are not import:

import datetime as dt

? If this does not solve your problem, we need more information!

Regards

5

Hey

Thank you all very much for your help.

Yes, I have imported from rasa_sdk.events import SlotSet.

I found my problem. Its was a stupid misstake.

If you look closely, I wrote:

slots:
  service_time:
    type: categorial 
    values:
    - online
    - offline

However, correct would be:

slots:
  service_time:
    type: categorical
    values:
    - online
    - offline

Do you spot the difference? :slight_smile:

I think my problem is solved. Thank you very much for your help!!!

2 Likes
6

@Chatbot_Ra a missing c in categorial :smiley:

2 Likes
7

YamlSyntaxException: Failed to read ‘data\stories.yml’. while parsing a block mapping in “data\stories.yml”, line 10, column 5: - slot{“service_time”: “online”} ^ (line: 10) expected , but found ‘}’ in “data\stories.yml”, line 10, column 34: - slot{“service_time”: “online”} ^ (line: 10) hi, I’m a beginner to Rasa, i have tried this but stuck in it. can anyone help me. I have paste the error i’m facing

8

help me with this