How do I add a custom field with label, but without input tag?

Question

I have a form which in code looks like that:

= simple_form_for @cat do |f|
  = f.input :lives
  = f.input :whiskers

Which renders all appropriate labels, wrap in divs with correct classes and at the end I get form like that:

+------------------------------+
|          Cat Manager         |
|--------------+---------------|
|              |+-------------+|
|        Lives:||            9||
|              |+-------------+|
|              |+-------------+|
|     Whiskers:||         many||
|              |+-------------+|
+--------------v---------------+

Now I want to add some information to show to user as reference. I know that I can look up correct html wrappers, classes, etc and just add plain html to my form, but this is ugly and if wrappers change I would have to change all corresponding classes manually. So, ideally I would like to have something like that:

= simple_form_for @cat do |f|
  = f.field 'Owner:', @cat.owner.decorate.link_to_profile
  = f.input :lives
  = f.input :whiskers

Which will render a similarly looking form, but with my new field:

+------------------------------+
|          Cat Manager         |
|--------------+---------------|
|              |               |
|        Owner:|:-) Gary       |
|              |               |
|              |+-------------+|
|        Lives:||            9||
|              |+-------------+|
|              |+-------------+|
|     Whiskers:||         many||
|              |+-------------+|
+--------------v---------------+

I can't find anything similar in simple form documentation. Any ideas from where to start?

Answer 1

Unless I'm misunderstanding, the standard builder won't do what you're after. You might find some use from using f.label :owner for the label and then adding some logic for the input only, but that's probably as close as it gets.