From f9a592d99d3ed689ed757ba2a18007e277c7db1d Mon Sep 17 00:00:00 2001
From: Adrian Holovaty <adrian@holovaty.com>
Date: Tue, 3 Jul 2007 15:02:40 +0000
Subject: [PATCH] Fixed #4729 -- SessionWrapper.pop now sets modified flag if
 necessary. Thanks, Ben Slavin, SmileyChris and Collin Grady

git-svn-id: http://code.djangoproject.com/svn/django/trunk@5592 bcc190cf-cafb-0310-a4f2-bffc1f526a37
---
 django/contrib/sessions/middleware.py |  1 +
 django/contrib/sessions/tests.py      | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/django/contrib/sessions/middleware.py b/django/contrib/sessions/middleware.py
index 434997d616..82b217f829 100644
--- a/django/contrib/sessions/middleware.py
+++ b/django/contrib/sessions/middleware.py
@@ -37,6 +37,7 @@ class SessionWrapper(object):
         return self._session.get(key, default)
 
     def pop(self, key, *args):
+        self.modified = self.modified or key in self._session 
         return self._session.pop(key, *args)
 
     def set_test_cookie(self):
diff --git a/django/contrib/sessions/tests.py b/django/contrib/sessions/tests.py
index 5a28effa86..e83442123e 100644
--- a/django/contrib/sessions/tests.py
+++ b/django/contrib/sessions/tests.py
@@ -5,8 +5,24 @@ Inject data into the session cache.
 >>> s._session_cache = {}
 >>> s._session_cache['some key'] = 'exists'
 
+>>> s.accessed
+False
+>>> s.modified
+False
+
+>>> s.pop('non existant key', 'does not exist')
+'does not exist'
+>>> s.accessed
+True
+>>> s.modified
+False
+
 >>> s.pop('some key')
 'exists'
+>>> s.accessed
+True
+>>> s.modified
+True
 
 >>> s.pop('some key', 'does not exist')
 'does not exist'