title: Is there a way to filter a queryset in the django admin?
body: <p>I'm trying to define an action for a model Bar -- but I only want the list of Bar objects related to a user Foo.</p>
  
  <p>Before I start mucking around in the admin code and passing in a custom queryset (or writing a custom view that hijacks the admin's multi-checkbox support), I figured I'd check to see if there were a way I could slice up the data as is so I get a list view.</p>
  
  <p>Note: I'm not trying to sort by related user, and I'm not trying to add extra options to the default list view to filter by user; I need a specific URL or view that will give me <em>just</em> a list of Bar objects to a <em>specific</em> user Foo.</p>