Hi ! During some tests with Role Entities, I figure out my slot mapping doesn’t work like I tought. Currently, it work because my slots names and my entities names are the same. But I tried to change one and it is not fill now. My test is with the same intent, it trigger the FormAction action_get_top_users which the beginning is : class ActionGetTopUsers(FormAction): def name(self) -> Text: return "action_get_top_users" @staticmethod def required_slots(tracker: Tracker) -> List[Text]: """A list of required slots that the form has to fill""" return ["moment", "application"] def slot_mappings(self) -> Dict[Text, Any]: return {"moment": self.from_entity(entity="moment", intent=["moment_added", "top_users"]), "application": self.from_entity(entity="application", intent=["application_added", "top_users"]), "site": self.from_entity(entity="city-site", intent=["city_added", "top_users"])} If i had site to my requested slot (just by adding it in the list of required_slot), the debug is 2020-05-25 15:07:45 **DEBUG** rasa_sdk.forms - Activated the form 'action_get_top_users' 2020-05-25 15:07:45 **DEBUG** rasa_sdk.forms - Validating pre-filled required slots: {'moment': 'hier', 'application': 'skype'} 2020-05-25 15:07:45 **DEBUG** rasa_sdk.forms - Validating user input '{'intent': {'name': 'top_users', 'confidence': 0.9999955296516411}, 'entities': [{'entity': 'application', 'start': 14, 'end': 19, 'value': 'skype', 'extractor': 'DIETClassifier'}, {'entity': 'moment', 'start': 20, 'end': 24, 'value': 'hier', 'extractor': 'DIETClassifier'}, {'entity': 'city-site', 'start': 27, 'end': 32, 'value': 'Porto', 'extractor': 'DIETClassifier'}], 'intent_ranking': [{'name': 'top_users', 'confidence': 0.9999955296516411}, {'name': 'mood_unhappy_return_question', 'confidence': 2.146076894860016e-06}, {'name': 'goodbye', 'confidence': 5.99835573211749e-07}, {'name': 'temperature', 'confidence': 5.354330596674117e-07}, {'name': 'mood_great_return_question', 'confidence': 3.627311855325388e-07}, {'name': 'bot_challenge', 'confidence': 2.8670544338638143e-07}, {'name': 'greet', 'confidence': 1.801675466595043e-07}, {'name': 'deny', 'confidence': 1.6207697228765017e-07}, {'name': 'reseau_action', 'confidence': 1.442294745856998e-07}, {'name': 'weather', 'confidence': 8.303375409468572e-08}], 'text': 'qui a utilisé skype hier à Porto ?'}' 2020-05-25 15:07:45 **DEBUG** rasa_sdk.forms - Extracted 'hier' for extra slot 'moment'. 2020-05-25 15:07:45 **DEBUG** rasa_sdk.forms - Extracted 'skype' for extra slot 'application'. 2020-05-25 15:07:45 **DEBUG** rasa_sdk.forms - Extracted 'Porto' for extra slot 'site'. 2020-05-25 15:07:45 **…

The custom slot mappings only work for requested slots, see the example in de docs . If you want to see how this is implemented you can also check the get_mappings_for_slot function.

Okay thank you, but in fact I don’t see in the documentation that Slot Mapping only works for requested Slot, I think it should be interesting to precise it. So now, I only need to find how to set not requested slot !

I agree that it is somewhat unclear but the first sentence of the comment in the code example states: “A dictionary to map required slots to…”

To set a slot that has not been requested you could try to hook into the request_next_slot: def request_next_slot(self, dispatcher, tracker, domain): next_slot = super().request_next_slot(dispatcher, tracker, domain) # All required slots have been filled if not next_slot: # Check whether the 'site' slot has been filled if not tracker.get_slot('site'): # Set the slot return [SlotSet('site', 'foobar')] return next_slot My use of the function is a little different so I’m not 100% sure if the code above will work directly for your usecase.

Okay thank you, I’ll watch to this, thank you for your time !

@flythe globally, your code is good, i can have optional slot, but when I have one, I need to do an other input to launch my action. Thank you, I keep looking for a solution.

If a slot is not requested, slot mapping doesn't work

Rasa Open Source

julien.bronner (Julien Bronner) May 26, 2020, 9:39am 5

ow I’m sorry, this is true ^^" Read better would avoid me some trouble

Topic		Replies	Views
Rasa requests required slot when FormAction is invoked, but custom slot mapping is not called for requested slot Rasa Open Source	6	1460	June 2, 2021
Custom Slot Mappings for Non-required Slots Rasa Open Source	5	973	March 17, 2021
Extract other slots neglects custom slot mappings Rasa Open Source	8	1734	November 15, 2019
Are slot mappings not used at the beginnig of a Form Action? Rasa Open Source	13	1337	November 24, 2021
Rasa form action not requesting next slot Rasa Open Source	4	2377	February 19, 2019

If a slot is not requested, slot mapping doesn't work

Related topics