rails html helper

Question

I'm trying to figure out the cleanest way to generate a bit of html AND nest content inside it. Using HAML. Basically I want to do something like:

= block_large
  This is some nested content

And that should generate:

<div class="block large">
  <img src="block_large_carat.gif" class="block_large_carat">
  This is some nested content
</div>

The problem is I don't know how to go about achieving this. Partials? Helper? I'm getting hung up on how I would nest whatever content I want. Trying to keep my HAML DRY and don't want to have to explicitly declare the image tag over and over again.

Answer 1

Edited:
My previous solution didn't work :)
Thanks EmFi for pointing it out.
This time I (even) tested it and it (even) worked! \o/

I'm posting this here based on this blog post.
Read the full post for a much better explanation :)

app/helpers/application_helper.rb

  def block_to_partial(partial_name, options = {}, &block)
    options.merge!(:body => capture(&block))
    concat(render(:partial => partial_name, :locals => options), block.binding)
  end

app/views/xxx/new.html.haml

%h2 Test!
- block_to_partial("block_large", :class_name=>"nested_content") do
  This is some nested content
OOps..

app/views/xxx/_block_large.html.haml

#block_large
  %img(src="block_large_carat.gif" class="block_large_carat")
  %div(class=class_name)
    = body

Renders:

<div id='block_large'>
  <img class='block_large_carat' src='block_large_carat.gif' />
  <div class='nested_content'>
    This is some nested content
  </div>
</div>
OOps..

Hope that helps!