Extract RangeField

actionpack/lib/action_view/helpers/form_helper.rb

@@ -920,7 +920,7 @@ def number_field(object_name, method, options = {})
       # ==== Options
       # * Accepts same options as range_field_tag
       def range_field(object_name, method, options = {})
-        InstanceTag.new(object_name, method, self, options.delete(:object)).to_number_field_tag("range", options)
+        ActionView::Helpers::Tags::RangeField.new(object_name, method, self, options).render
       end
 
       private
@@ -970,16 +970,6 @@ def to_input_field_tag(field_type, options = {})
         tag("input", options)
       end
 
-      def to_number_field_tag(field_type, options = {})
-        options = options.stringify_keys
-        options['size'] ||= nil
-
-        if range = options.delete("in") || options.delete("within")
-          options.update("min" => range.min, "max" => range.max)
-        end
-        to_input_field_tag(field_type, options)
-      end
-
       def to_boolean_select_tag(options = {})
         options = options.stringify_keys
         add_default_name_and_id(options)

actionpack/lib/action_view/helpers/tags.rb

@@ -12,6 +12,7 @@ module Tags
       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'

actionpack/lib/action_view/helpers/tags/range_field.rb

+module ActionView
+  module Helpers
+    module Tags
+      class RangeField < NumberField #:nodoc:
+      end
+    end
+  end
+end