add the required integer column and the increment statement when featured

app/controllers/exercises_controller.rb

@@ -416,6 +416,9 @@ class ExercisesController < ApplicationController
           flash[:notice] = I18n.t('exercises.submit.full_score_redirect_to_rfc')
           flash.keep(:notice)
 
+          # increase counter 'times_featured' in rfc
+          rfc.increment!(:times_featured)
+
           respond_to do |format|
             format.html {redirect_to(rfc)}
             format.json {render(json: {redirect: url_for(rfc)})}

db/migrate/20180202132034_add_times_featured_to_request_for_comments.rb

@@ -0,0 +1,5 @@
+class AddTimesFeaturedToRequestForComments < ActiveRecord::Migration
+  def change
+    add_column :request_for_comments, :times_featured, :integer, default: 0
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20180130172021) do
+ActiveRecord::Schema.define(version: 20180202132034) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -281,6 +281,7 @@ ActiveRecord::Schema.define(version: 20180130172021) do
     t.integer  "submission_id"
     t.text     "thank_you_note"
     t.boolean  "full_score_reached",             default: false
+    t.integer  "times_featured",                 default: 0
   end
 
   create_table "searches", force: :cascade do |t|