def error_wrapping(html_tag, has_error)
      has_error ? ActionView::Base.field_error_proc.call(html_tag, self) : html_tag
    end
def error_wrapping(html_tag, has_error)
      has_error ? ActionView::Base.field_error_proc.call(html_tag, self) : html_tag
    end
Same as ActionView::Helpers::InstanceTag class instance method