Fixed #168 -- admin object history was assuming primary key was named…

… 'id'. Thanks, clintecker@gmail.com

git-svn-id: http://code.djangoproject.com/svn/django/trunk@302 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/views/admin/main.py

@@ -1077,7 +1077,7 @@ def history(request, app_label, module_name, object_id):
         order_by=("action_time",), select_related=True)
     # If no history was found, see whether this object even exists.
     try:
-        obj = mod.get_object(id__exact=object_id)
+        obj = mod.get_object(**{'%s__exact' % opts.pk.name: object_id})
     except ObjectDoesNotExist:
         raise Http404
     t = template_loader.get_template('admin_object_history')