answer.rb in decidim-forms-0.18.0

- old
+ new

@@ -3,10 +3,11 @@
 module Decidim
   module Forms
     # The data store for an Answer in the Decidim::Forms
     class Answer < Forms::ApplicationRecord
       include Decidim::DataPortability
+      include Decidim::NewsletterParticipant
 
       belongs_to :user, class_name: "Decidim::User", foreign_key: "decidim_user_id"
       belongs_to :questionnaire, class_name: "Questionnaire", foreign_key: "decidim_questionnaire_id"
       belongs_to :question, class_name: "Question", foreign_key: "decidim_question_id"
 
@@ -26,9 +27,20 @@
         where(decidim_user_id: user.id)
       end
 
       def self.export_serializer
         Decidim::Forms::DataPortabilityUserAnswersSerializer
+      end
+
+      def self.newsletter_participant_ids(component)
+        surveys = Decidim::Surveys::Survey.joins(:component, :questionnaire).where(component: component)
+        questionnaires = Decidim::Forms::Questionnaire.includes(:questionnaire_for)
+                                                      .where(questionnaire_for_type: Decidim::Surveys::Survey.name, questionnaire_for_id: surveys.pluck(:id))
+
+        answers = Decidim::Forms::Answer.joins(:questionnaire)
+                                        .where(questionnaire: questionnaires)
+
+        answers.pluck(:decidim_user_id).flatten.compact.uniq
       end
 
       private
 
       def user_questionnaire_same_organization