ability.rb

class Ability
  include CanCan::Ability

  def initialize user, options = {}
    user ||= User.new
    role_call = ["admin", "boss", "exporter", "member"]
    role_call.each do |r|
      if user.roles.has?(r)
        "#{r}" + _rules
      else
        guest_rules
      end
    end
  end

  def admin_rules
    can :manage, :all
  end

  def boss_rules
    can :manage, :all
  end

  def exporter_rules
  end

  def member_rules

  end

  def guest_rules
    can :read, PagesController
    can :create, Organization
    can :create, User
  end
end