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

@@ -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):

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'