setting up paper trail

backend/Gemfile

@@ -16,6 +16,9 @@ gem 'bcrypt'
 
 gem 'jwt'
 
+# for maintaining audits
+gem 'paper_trail', '~> 4.0.2'
+
 # for windows
 gem 'tzinfo-data', platforms: [:x64_mingw,:mingw, :mswin]
 

backend/db/migrate/20160310183317_create_versions.rb

@@ -0,0 +1,13 @@
+class CreateVersions < ActiveRecord::Migration
+  def change
+    create_table :versions do |t|
+      t.string   :item_type, :null => false
+      t.integer  :item_id,   :null => false
+      t.string   :event,     :null => false
+      t.string   :whodunnit
+      t.text     :object
+      t.datetime :created_at
+    end
+    add_index :versions, [:item_type, :item_id]
+  end
+end

backend/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: 20160224070033) do
+ActiveRecord::Schema.define(version: 20160310183317) do
 
   create_table "admins", force: :cascade do |t|
     t.datetime "created_at", null: false
@@ -22,6 +22,11 @@
 
   add_index "admins", ["approved"], name: "index_admins_on_approved"
 
+  create_table "audit_trails", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "degrees", force: :cascade do |t|
     t.integer  "year",           null: false
     t.string   "degree_type",    null: false
@@ -96,4 +101,15 @@
 
   add_index "users", ["approved"], name: "index_users_on_approved"
 
+  create_table "versions", force: :cascade do |t|
+    t.string   "item_type",  null: false
+    t.integer  "item_id",    null: false
+    t.string   "event",      null: false
+    t.string   "whodunnit"
+    t.text     "object"
+    t.datetime "created_at"
+  end
+
+  add_index "versions", ["item_type", "item_id"], name: "index_versions_on_item_type_and_item_id"
+
 end