app/controllers/concerns/decidim/consultations/needs_question.rb in decidim-consultations-0.17.2 vs app/controllers/concerns/decidim/consultations/needs_question.rb in decidim-consultations-0.18.0

@@ -5,11 +5,11 @@
     # This module, when injected into a controller, ensures there's a
     # question available and deducts it from the context.
     module NeedsQuestion
       def self.enhance_controller(instance_or_module)
         instance_or_module.class_eval do
-          helper_method :current_question, :current_consultation, :current_participatory_space, :stats,
+          helper_method :current_question, :previous_question, :next_question, :current_consultation, :current_participatory_space, :stats,
                         :sorted_results
 
           helper Decidim::WidgetUrlsHelper
         end
       end
@@ -33,10 +33,30 @@
         # Returns the current Question.
         def current_question
           @current_question ||= detect_question
         end
 
+        # Public: Finds the previous Question in the Array of questions
+        # associated to the current_question's consultation.
+        #
+        # Returns the previous Question in the Array or nil if out of bounds.
+        def previous_question
+          return nil if (current_question_index - 1).negative?
+
+          current_consultation_questions.at(current_question_index - 1)
+        end
+
+        # Public: Finds the next Question in the Array of questions
+        # associated to the current_question's consultation.
+        #
+        # Returns the next Question in the Array or nil if out of bounds.
+        def next_question
+          return nil if current_question_index + 1 >= current_consultation_questions.size
+
+          current_consultation_questions.at(current_question_index + 1)
+        end
+
         # Public: Finds the current Consultation given this controller's
         # context.
         #
         # Returns the current Consultation.
         def current_consultation
@@ -61,9 +81,17 @@
           @organization_consultations ||= OrganizationConsultations.new(current_organization).query
         end
 
         def stats
           @stats ||= QuestionStatsPresenter.new(question: current_question)
+        end
+
+        def current_consultation_questions
+          @current_consultation_questions ||= current_question.consultation.questions.to_a
+        end
+
+        def current_question_index
+          current_consultation_questions.find_index(current_question)
         end
       end
     end
   end
 end