Add three upload stat columns to Course records

Author: ragesoss

app/models/course.rb

@@ -15,6 +15,9 @@
 #  user_count        :integer          default(0)
 #  article_count     :integer          default(0)
 #  revision_count    :integer          default(0)
+#  upload_count      :integer          default(0)
+#  uploads_in_use_count :integer       default(0)
+#  upload_usages_count :integer        default(0)
 #  slug              :string(255)
 #  listed            :boolean          default(TRUE)
 #  signup_token      :string(255)

db/migrate/20160411221821_add_upload_stats_to_course.rb

@@ -0,0 +1,7 @@
+class AddUploadStatsToCourse < ActiveRecord::Migration
+  def change
+    add_column :courses, :upload_count, :integer, default: 0
+    add_column :courses, :uploads_in_use_count, :integer, default: 0
+    add_column :courses, :upload_usages_count, :integer, default: 0
+  end
+end

db/schema.rb

@@ -11,7 +11,8 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160404235251) do
+
+ActiveRecord::Schema.define(version: 20160411221821) do
 
   create_table "articles", force: :cascade do |t|
     t.string   "title",                    limit: 255
@@ -135,6 +136,9 @@
     t.integer  "trained_count",     limit: 4,     default: 0
     t.integer  "cloned_status",     limit: 4
     t.string   "type",              limit: 255,   default: "ClassroomProgramCourse"
+    t.integer  "upload_count",         limit: 4,     default: 0
+    t.integer  "uploads_in_use_count", limit: 4,     default: 0
+    t.integer  "upload_usages_count",  limit: 4,     default: 0
   end
 
   add_index "courses", ["slug"], name: "index_courses_on_slug", using: :btree