Generate UUID when user is created

Author: bgrove1974

app/controllers/v1/users_controller.rb

@@ -13,7 +13,7 @@ def index
     def show
       @user = User.find(params[:id])
 
-      render json: @user, only: [:id]
+      render json: @user, only: [:id, :token]
       # render json: User.find(params[:id]), only: [:id]
       # render json: @user.id
     end
@@ -69,7 +69,7 @@ def issues
     #Require strong_params/replace attr_accessible
     private
       def user_params
-        params.require(:id, :address1, :address2, :city, :state, :zipcode).permit(:id, :address1, :address2, :city, :state, :zipcode)
+        params.require(:id, :address1, :address2, :city, :state, :zipcode, :token).permit(:id, :address1, :address2, :city, :state, :zipcode, :token)
       end
   end
 end

app/models/concerns/tokenable.rb

@@ -0,0 +1,16 @@
+module Tokenable
+	extend ActiveSupport::Concern
+
+	included do 
+		before_create :generate_token
+	end
+
+	protected
+
+	def generate_token
+		self.token = loop do 
+			random_token = SecureRandom.uuid
+			break random_token unless self.class.exists?(token: random_token)
+		end
+	end
+end

app/models/user.rb

@@ -1,2 +1,3 @@
 class User < ActiveRecord::Base
+	include Tokenable
 end

app/serializers/user_serializer.rb

@@ -1,3 +1,3 @@
 class UserSerializer < ActiveModel::Serializer
-  attributes :id, :address1, :address2, :city, :state, :zipcode
+  attributes :id, :address1, :address2, :city, :state, :zipcode, :token
 end

config/routes.rb

@@ -1,4 +1,5 @@
 Rails.application.routes.draw do
+  resources :users, except: [:new, :edit]
   api_version(:module => "V1", :path => {:value => "v1"}, :default => true) do
 
     get 'users/index' => 'users#index'

db/migrate/20140802070454_create_users.rb renamed to db/migrate/20140817074932_create_users.rb

@@ -6,6 +6,7 @@ def change
       t.string :city
       t.string :state
       t.integer :zipcode
+      t.string :token
 
       t.timestamps
     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: 20140810072749) do
+ActiveRecord::Schema.define(version: 20140817074932) do
 
   create_table "candidates", force: true do |t|
     t.string   "name"
@@ -41,6 +41,7 @@
     t.string   "city"
     t.string   "state"
     t.integer  "zipcode"
+    t.string   "token"
     t.datetime "created_at"
     t.datetime "updated_at"
   end

test/fixtures/users.yml

@@ -6,10 +6,12 @@ one:
   city: MyString
   state: MyString
   zipcode: 1
+  token: MyString
 
 two:
   address1: MyString
   address2: MyString
   city: MyString
   state: MyString
   zipcode: 1
+  token: MyString