-ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
+ActionView::Base.field_error_proc = proc do |html_tag, _instance|
class_attr_index = html_tag.index 'class="'
if class_attr_index
- html_tag.insert class_attr_index+7, 'field_with_errors '
+ html_tag.insert class_attr_index + 7, "field_with_errors "
else
- html_tag.insert html_tag.index(/\/?>/), ' class="field_with_errors"'
+ html_tag.insert html_tag.index(%r{/?>}), ' class="field_with_errors"'.html_safe
end
end