title: ActiveAdmin display collection in Show method
body: <p>I have Packages, which have multiple Components (linked using a has_many through Bundles)</p>
  
  <p>In ActiveAdmin, when I show a Package I want to be able to show all the Components linked to it</p>
  
  <p>So I have a show method as follows:</p>
  
  <pre><code>show do
   attributes_table do
    row :description
  
    row 'Components' do |n|
       package.components.each do |component|
         #debugger
         component.name
       end
    end
   end
  end
  </code></pre>
  
  <p>When I display the page, it shows the full version of each record, ie (one of which I show below, but there will be as many as there are Components):</p>
  
  <pre><code>[#&lt;Component id: 2, component_token: "6e9be0b0-71c0-012f-d523-00254bca74c4", name: "Exercise Module", description: "This is the exercise module", created_at: "2012-04-26 11:25:20", updated_at: "2012-04-26 11:25:20"&gt;]
  </code></pre>
  
  <p>When I stop the debugger at the point I have commented it, the value for component.name is given as "Exercise Module", but that is not what is outputted to the show - in fact, ActiveAdmin seems to ignore everything in that |component| block.</p>
  
  <p>How do I display the record attributes, and not the whole record itself?</p>
  
  <p>Thanks</p>