title: rails_admin how to display only the current_users associated records
body: <p>Using rails_admin let's assume we have 3 users and 10 stores.</p>
  
  <p>The first user has <code>role == 'root'</code> and the other 2 users have <code>role == 'admin'</code>.</p>
  
  <p>There is a typical rails <code>has_and_belongs_to_many</code> relationship successfully established between <code>User</code> and <code>Store</code>.</p>
  
  <p>When any <code>User</code> accesses the rails_admin engine <code>/admin</code>, I'd like that <code>User</code> to be able to access any <code>Store</code> that they are associated with or in the case of the <code>role == 'root'</code> User, they should be able to access all the Stores.</p>
  
  <p>I'm digging through the rails admin wiki and I'm not really seeing anything that would give me this ability.</p>
  
  <p>I'm thinking there is a customization somewhere that would display only stores that the current_user has as relations (or whatever other conditions I specify).</p>
  
  <p>Any thoughts here?</p>
  
  <p>Thanks,</p>
  
  <p>JD</p>