class ActiveLdap::Association::BelongsTo

def find_target
  value = @owner[@options[:foreign_key_name]]
  raise EntryNotFound if value.nil?
  key = primary_key
  if key == "dn"
    result = foreign_class.find(value, find_options)
  else
    filter = {key => value}
    options = find_options(:filter => filter, :limit => 1)
    result = foreign_class.find(:all, options).first
  end
  raise EntryNotFound if result.nil?
  result
end

def have_foreign_key?
  not @owner[@options[:foreign_key_name]].nil?
end

def replace(entry)
  if entry.nil?
    @target = @owner[@options[:foreign_key_name]] = nil
  else
    @target = (Proxy === entry ? entry.target : entry)
    infect_connection(@target)
    unless entry.new_entry?
      @owner[@options[:foreign_key_name]] = entry[primary_key]
    end
    @updated = true
  end
  loaded
  entry
end

def updated?
  @updated
end