class KarretlinksController < ApplicationController
  before_filter :authenticate , :except => [:show, :new, :newlink, :edit, :create, :update, :destroy]

  def authenticate
      authenticate_or_request_with_http_basic do |username, password|
        username == "admin" && password == "weareninja"
      end
  end

  ...

  def display
    @karretlinks = Karretlink.paginate(:page => params[:page], :per_page => 10)


    # respond_to do |format|
    #   format.html # index.html.erb
    #   format.json { render json: @karretlinks }
    # end
  end

  ...

  def like
    @user_karet = UserKaret.new
    @user_karet.user_id = current_user.id

    # @user_karet.karet_id = ???

    @user_karet.save

  end

  ...
end