From 03573a3876a39de5766082c3557b03e3e7134009 Mon Sep 17 00:00:00 2001
From: Travis Cline <travis.cline@gmail.com>
Date: Fri, 10 Apr 2009 15:13:35 -0500
Subject: [PATCH] added memoization of get_models for performance
 
---
 django/db/models/loading.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
 
diff --git a/django/db/models/loading.py b/django/db/models/loading.py
index e07aab4..2743f86 100644
--- a/django/db/models/loading.py
+++ b/django/db/models/loading.py
@@ -4,6 +4,7 @@ from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.utils.datastructures import SortedDict
 from django.utils.importlib import import_module
+from django.utils.functional import memoize
 
 import sys
 import os
@@ -35,6 +36,7 @@ class AppCache(object):
         postponed = [],
         nesting_level = 0,
         write_lock = threading.RLock(),
+        _get_models_cache = {}
     )
 
     def __init__(self):
@@ -144,6 +146,7 @@ class AppCache(object):
             for app_entry in self.app_models.itervalues():
                 model_list.extend(app_entry.values())
             return model_list
+    get_models = memoize(get_models, __shared_state['_get_models_cache'], 2)
 
     def get_model(self, app_label, model_name, seed_cache=True):
         """
-- 
1.6.2.8.g9a668