Added Person model with sorting_filters set to only order people who are board members.

Added custom template override to specify which people are sortable in change list.
Added initial data fixture for people.

sample_project/app/admin.py

@@ -60,4 +60,8 @@ class ProjectAdmin(SortableAdmin):
 admin.site.register(Project, ProjectAdmin)
 
 
-admin.site.register(Person, SortableAdmin)
+class PersonAdmin(SortableAdmin):
+    sortable_change_list_with_sort_link_template = 'app/person/admin/change_list_with_sort_link.html'
+
+
+admin.site.register(Person, PersonAdmin)

sample_project/app/models.py

@@ -105,9 +105,7 @@ class Person(Sortable):
     last_name = models.CharField(max_length=50)
     is_board_member = models.BooleanField(default=False)
 
+    sorting_filters = {'is_board_member': True}
+
     def __unicode__(self):
         return '{} {}'.format(self.first_name, self.last_name)
-
-    @classmethod
-    def ordering_subset(cls):
-        return cls.objects.filter(is_board_member=True)

sample_project/requirements.txt

@@ -1,2 +1,2 @@
-django==1.5.2
+django==1.6.1
 south==0.8.1

sample_project/sample_project/settings.py

@@ -109,10 +109,7 @@ ROOT_URLCONF = 'sample_project.urls'
 WSGI_APPLICATION = 'sample_project.wsgi.application'
 
 TEMPLATE_DIRS = (
-    # Put strings here, like "/home/html/django_templates" or
-    # "C:/www/django/templates".
-    # Always use forward slashes, even on Windows.
-    # Don't forget to use absolute paths, not relative paths.
+    map_path('templates'),
 )
 
 INSTALLED_APPS = (

sample_project/templates/app/person/admin/change_list_with_sort_link.html

@@ -0,0 +1,9 @@
+{% extends change_list_template_extends %}
+{% load i18n %}
+
+{% block object-tools-items %}
+	<li>
+		<a href="./sort/">{% trans 'Change Order of Board Members' %}</a>
+	</li>
+	{{ block.super }}
+{% endblock %}