refactor quiz processing

completes #60

app/controllers/quiz_controller.rb

@@ -12,7 +12,8 @@ class QuizController < ApplicationController
   def update_answer
     @answer = prep_answer answer_params[:question_id]
     prep_status
-    send "process_#{prep_question(answer_params[:question_id]).input_type}"
+    prep_question(answer_params[:question_id])
+    @answer.update(process_answer_params)
     route_answer_xhr and return if request.xhr?
     route_answer_html
   end
@@ -48,14 +49,23 @@ class QuizController < ApplicationController
       params.require(:answer).permit(
         :question_id,
         :answer_id,
-        :radio,
-        :text,
-        checkbox: [],
-        with_other: [:other, options: []],
-        live_code: [:later, :html, :css, :js, :text]
+        :answer,
+        answer_array: [],
+        answer_hash: [:later, :html, :css, :js, :text, :other, options: []]
       )
     end
 
+    def process_answer_params
+      answer = answer_params
+      answer[:saved] = params.key?(:save)
+      answer[:submitted] = params.key?(:submit)
+      answer[:answer] = answer_params[:answer_array] unless answer_params[:answer_array].nil?
+      answer[:answer] = answer_params[:answer_hash].to_h unless answer_params[:answer_hash].nil?
+      answer.delete(:answer_array)
+      answer.delete(:answer_hash)
+      answer
+    end
+
     def prep_answer qid = answer_params[:question_id]
       answer_ids = { question_id: qid, candidate_id: current_candidate.to_i }
       answer = Answer.find_or_create_by(answer_ids)
@@ -68,7 +78,6 @@ class QuizController < ApplicationController
         flash[:error] = answer_params[:question_id].to_i
         render :question
       else
-        # TODO: change params.key? to submit = save/next/summary
         redirect_to :saved and return if params.key?(:save)
         redirect_to :question
       end
@@ -86,36 +95,4 @@ class QuizController < ApplicationController
         render json: results.to_json
       end
     end
-
-    # TODO: maybe a better way to do this. See Admin/QuestionController#process_question_params
-    def process_text
-      @answer.update(answer: answer_params[:text],
-                     saved: params.key?(:save),
-                     submitted: params.key?(:submit))
-    end
-
-    def process_radio
-      @answer.update(answer: answer_params[:radio],
-                     saved: params.key?(:save),
-                     submitted: params.key?(:submit))
-    end
-
-    def process_checkbox
-      @answer.update(answer: answer_params[:checkbox],
-                     saved: params.key?(:save),
-                     submitted: params.key?(:submit))
-    end
-
-    def process_live_code
-      @answer.update(answer: answer_params[:live_code].to_h,
-                     saved: params.key?(:save),
-                     submitted: params.key?(:submit))
-    end
-
-    def process_radio_other
-      @answer.update(answer: answer_params[:with_other].to_h,
-                     saved: params.key?(:save),
-                     submitted: params.key?(:submit))
-    end
-    alias process_checkbox_other process_radio_other
 end