Use ActiveSupport::Autoload to autoload the tags

actionpack/lib/action_view/helpers/tags.rb

 module ActionView
   module Helpers
-    module Tags
-      autoload :Base,                    'action_view/helpers/tags/base'
-      autoload :Label,                   'action_view/helpers/tags/label'
-      autoload :TextField,               'action_view/helpers/tags/text_field'
-      autoload :PasswordField,           'action_view/helpers/tags/password_field'
-      autoload :HiddenField,             'action_view/helpers/tags/hidden_field'
-      autoload :FileField,               'action_view/helpers/tags/file_field'
-      autoload :SearchField,             'action_view/helpers/tags/search_field'
-      autoload :TelField,                'action_view/helpers/tags/tel_field'
-      autoload :UrlField,                'action_view/helpers/tags/url_field'
-      autoload :EmailField,              'action_view/helpers/tags/email_field'
-      autoload :NumberField,             'action_view/helpers/tags/number_field'
-      autoload :RangeField,              'action_view/helpers/tags/range_field'
-      autoload :TextArea,                'action_view/helpers/tags/text_area'
-      autoload :CheckBox,                'action_view/helpers/tags/check_box'
-      autoload :RadioButton,             'action_view/helpers/tags/radio_button'
-      autoload :Select,                  'action_view/helpers/tags/select'
-      autoload :CollectionSelect,        'action_view/helpers/tags/collection_select'
-      autoload :GroupedCollectionSelect, 'action_view/helpers/tags/grouped_collection_select'
-      autoload :TimeZoneSelect,          'action_view/helpers/tags/time_zone_select'
-      autoload :DateSelect,              'action_view/helpers/tags/date_select'
-      autoload :TimeSelect,              'action_view/helpers/tags/time_select'
-      autoload :DatetimeSelect,          'action_view/helpers/tags/datetime_select'
+    module Tags #:nodoc:
+      extend ActiveSupport::Autoload
+
+      autoload :Base
+      autoload :Label
+      autoload :TextField
+      autoload :PasswordField
+      autoload :HiddenField
+      autoload :FileField
+      autoload :SearchField
+      autoload :TelField
+      autoload :UrlField
+      autoload :EmailField
+      autoload :NumberField
+      autoload :RangeField
+      autoload :TextArea
+      autoload :CheckBox
+      autoload :RadioButton
+      autoload :Select
+      autoload :CollectionSelect
+      autoload :GroupedCollectionSelect
+      autoload :TimeZoneSelect
+      autoload :DateSelect
+      autoload :TimeSelect
+      autoload :DatetimeSelect
     end
   end
 end