title: rails3 access nested session value
body: <p>Will probably seem like a very silly question. But here it is.</p>
  
  <p>I am attempting to access via a helper method session data, which is nested by model.  Debugging data is as follows:</p>
  
  <blockquote>
    <p>session: {"session_id"=>"65bbe89c779cc89f3785a8ec181beee4",
    "bozza_params"=>{"current_step"=>"2", "lavorazione_id"=>"7", [...]</p>
  </blockquote>
  
  <p>Testing out first in the view, to ensure percolation, I fail to find proper syntax. The natural inclination I have is</p>
  
  <pre><code>&lt;%= session[:bozza_params][:lavorazione_id] %&gt;
  </code></pre>
  
  <p>But that and many other attempts are failing.</p>