[IMP] big refactoring :

use event_type instead of product_product

survey_event_speaker_generation/models/survey_user_input.py

@@ -33,7 +33,7 @@ class SurveyUserInput(models.Model):
         for user_input in self.filtered(lambda r: r.survey_id.generate_speaker and not r.speaker_id and r.partner_id):                        
             user_input.update({"speaker_id": user_input.partner_id.id})
             for event in user_input.events_ids:                
-                event.speakers = [Command.link(user_input.speaker_id.id)]            
+                event.speaker_ids = [Command.link(user_input.speaker_id.id)]            
             user_input._create_speaker_post_process(user_input.speaker_id)