Fixed #23977 -- Added setdefault() method to HttpResponse

2 files changed, 10 insertions, 0 deletions

diff --git a/docs/ref/request-response.txt b/docs/ref/request-response.txt
index 3ae8510ce8..3f4d371df5 100644
--- a/docs/ref/request-response.txt
+++ b/docs/ref/request-response.txt
@@ -708,6 +708,12 @@ Methods
     Returns ``True`` or ``False`` based on a case-insensitive check for a
     header with the given name.
 
+.. method:: HttpResponse.setdefault(header, value)
+
+    .. versionadded:: 1.8
+
+    Sets a header unless it has already been set.
+
 .. method:: HttpResponse.set_cookie(key, value='', max_age=None, expires=None, path='/', domain=None, secure=None, httponly=False)
 
     Sets a cookie. The parameters are the same as in the
diff --git a/docs/releases/1.8.txt b/docs/releases/1.8.txt
index 6635d625bb..5ab42996ab 100644
--- a/docs/releases/1.8.txt
+++ b/docs/releases/1.8.txt
@@ -483,6 +483,10 @@ Requests and Responses
   like :meth:`~django.http.HttpResponse.getvalue` so that instances can be used
   as stream objects.
 
+* The new :meth:`HttpResponse.setdefault()
+  <django.http.HttpResponse.setdefault>` method allows setting a header unless
+  it has already been set.
+
 Tests
 ^^^^^