title: Django override manager in admin
body: <p>I have a model which use a custom manager:</p>
  
  <pre><code>class ProjectManager(models.Manager):
      def get_queryset(self):
          return super(ProjectManager, self).get_queryset() \
              .exclude(archived_date__isnull=False)
  
  
  class Project(models.Model):
      objects = ProjectManager()
      archived_date = models.DateTimeField(null=True, blank=True)
  </code></pre>
  
  <p>But I haven't found a way to display all Projects in the admin.</p>
  
  <p>My admin is defined as follow:</p>
  
  <pre><code>class ProjectAdmin(admin.ModelAdmin):
      model = Project
  </code></pre>
  
  <p>I tried to use the <code>get_queryset</code> in the <code>ProjectAdmin</code> class, but I could not figure out a way to get back all projects.</p>
  
  <p>Do you know a way to do it?</p>