Prevent Users from Submitting duplicate forms

application_controller.rb

class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception

  private

  def client_will_not_cache_response
    response.headers["Cache-Control”] = “no-cache, no-store” 
    response.headers[“Pragma”] = “no-cache”
    response.headers[“Expires”] = “Fri, 01 Jan 1990 00:00:00 GMT” 
  end
end

puppies_controller.rb

class PuppiesController < ApplicationController

    before_filter :redirect_if_existing, only: [:new, :create]

    after_filter :browser_will_not_cache_response, only: [:new]

    private

    def redirect_if_existing 

        ## If user already has a record in the puppies table 
        ## created this year 
        ## then redirect them to edit that Puppy.

        ## Be a courteous host and alert user that they were redirected.
    end
end

I meant to create this under my account @rskelley9