Fixed #18773 -- Added logging for template variable resolving

Added a django.template logger without a default handler. Added
logging if there is an exception while resolving variables in a
template.

2 files changed, 13 insertions, 0 deletions

diff --git a/docs/releases/1.9.txt b/docs/releases/1.9.txt
index 4c27230d10..16a9e9d5f8 100644
--- a/docs/releases/1.9.txt
+++ b/docs/releases/1.9.txt
@@ -188,6 +188,9 @@ Templates
 * Added a :meth:`Context.setdefault() <django.template.Context.setdefault>`
   method.
 
+* A warning will now be logged for missing context variables. These messages
+  will be logged to the :ref:`django.template <django-template-logger>` logger.
+
 Requests and Responses
 ^^^^^^^^^^^^^^^^^^^^^^
 
diff --git a/docs/topics/logging.txt b/docs/topics/logging.txt
index 0e167871ab..89de6d56a4 100644
--- a/docs/topics/logging.txt
+++ b/docs/topics/logging.txt
@@ -478,6 +478,16 @@ Messages to this logger have the following extra context:
 * ``request``: The request object that generated the logging
   message.
 
+.. _django-template-logger:
+
+``django.template``
+~~~~~~~~~~~~~~~~~~~
+
+.. versionadded:: 1.9
+
+Log messages related to the rendering of templates. Missing context variables
+are logged as ``DEBUG`` messages if :setting:`DEBUG` is `True`.
+
 .. _django-db-logger:
 
 ``django.db.backends``