Fixed #236 -- Added HttpResponse.delete_cookie() method.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@668 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/utils/httpwrappers.py

@@ -175,6 +175,12 @@ class HttpResponse:
             if val is not None:
                 self.cookies[key][var.replace('_', '-')] = val
 
+    def delete_cookie(self, key):
+        try:
+            self.cookies[key]['max_age'] = 0
+        except KeyError:
+            pass
+
     def get_content_as_string(self, encoding):
         """
         Returns the content as a string, encoding it from a Unicode object if

docs/request_response.txt

@@ -286,6 +286,10 @@ Methods
 
     .. _`cookie Morsel`: http://www.python.org/doc/current/lib/morsel-objects.html
 
+``delete_cookie(key)``
+    Deletes the cookie with the given key. Fails silently if the key doesn't
+    exist.
+
 ``get_content_as_string(encoding)``
     Returns the content as a Python string, encoding it from a Unicode object
     if necessary.