title: Django and reverse relations from foreign keys
body: <p>suppose the following simple models:</p>
  
  <pre><code>class Blog(models.Model):
      name = models.CharField(max_length=100)
      tagline = models.TextField()
  
  class Entry(models.Model):
      blog = models.ForeignKey(Blog)
      headline = models.CharField(max_length=255)
      body_text = models.TextField()
      author = models.ForeignKey(User, related_name='author_set')
  </code></pre>
  
  <p>How can I get all the authors that participated in a particular blog (i.e. pk=1)? I tried something like this, but it didn't work.</p>
  
  <pre><code>User.objects.author_set.filter(blog=Blog.objects.get(pk=1))
  </code></pre>
  
  <p>Many thanks in advance!</p>