# File lib/active_ldap/populate.rb, line 23
    def ensure_ou(name, base_class=nil)
      base_class ||= Base
      name = name.to_s if name.is_a?(DN)
      name = name.gsub(/\Aou\s*=\s*/i, '')

      ou_class = Class.new(base_class)
      ou_class.ldap_mapping(:dn_attribute => "ou",
                            :prefix => "",
                            :classes => ["top", "organizationalUnit"])
      return if ou_class.exist?(name)
      ou_class.new(name).save!
    end