foo

class FooController
  def destroy
    editable_by :admin
    puts "OH HAI"
  end
end

class ApplicationController < ActionController::Base
  
  private
  
  def editable_by(role)
    if current_user.role < role_with_symbol(role)
      flash[:error] = "GTFO DOOD"
      redirect_to "/"
    end
  end

  def role_with_symbol(sym)
    case sym
      when :admin then 5
      when :colab then 4
      when :batman then 3.141592
      else 0
    end
  end

end