title: Ruby on Rails - Create Entity with Relationship
body: <p>I'm new to rails, so be nice.</p>
  
  <p>I'm building a "rolodex" type application, and this question is about the best way to handle creating an entity along with several relationship entities at the same time.</p>
  
  <p>For (a contrived) example:
  My application will have a <code>Person</code> model, which <code>has_one</code> <code>Contact_Info</code> model.  On the <code>create.html.erb</code> page for <code>Person</code> it makes sense for the user of my appliction to create the person, and the contact_info at the same time.</p>
  
  <p>It doesn't seem right to include details for creating a contact directly in the create view/controller for person.  What's the rails way to handle this?  </p>