Ruby on Rails Formbuilder/HAML display-only fields don't seem to work

I'm trying to use Ruby on Rails' Formbuilder and HAML to edit a model that has some fields that can only be edited a creation. I still want to display them, but I don't want them editable. I've struggled trying to do this and make the form look presentable. So, if the field is editable, I use

= f.text_field :price_code_1,     :label_name => 'Price Code 1: (Selling Price)'

But the UPC is not changeable, and this does NOT work:

= f.text_field :upc,            :label_name => 'UPC', :disabled => 'disabled'

I end up doing this, but it is butt-ugly:

  <p><label class="field_label" for="upc">UPC</label><input class="medium_text_field" id="_sku_upc" name="[sku][upc]" type="text" value="#{@sku.upc}" disa开发者_JAVA技巧bled="disabled"/></p>

Now that looks "ok", but has several problems:

• It seems like too much typing. There must be a simpler way. I've Googled and searched forever, and I can't figure it out.
• Disabled fields can't be selected, so the user can't highlight the UPC and copy it to the clipboard
• I don't like the direct class references. Major hack.

Any ideas?

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Usually when I do this, I do not display the data in the form - otherwise I run into the "butt-ugly" issue that you ran into. I usually just write it directly to the page, or put it in a span or label tag.

%label UPC:
%label= @object.upc