title: Django search_fields & Many-To-One Relations
body: <p>As an example, I have two models: <code>Household</code> and <code>Person</code>:</p>
  
  <pre><code>from django.db import models
  class Household(models.Model):
      address = # ...
  class Person(models.Model):
      household = models.ForeignKey(Household)
      name = # ...
  </code></pre>
  
  <p>How can I search for <code>Household</code>s by names of <code>Person</code>s inside the Django admin?</p>