From 4a1451742bfa2a42ba5ec82bfa741c6644ba3807 Mon Sep 17 00:00:00 2001
From: Aymeric Augustin
Date: Mon, 11 Nov 2013 12:58:40 +0100
Subject: Set INTERNAL_IPS to a convenient default when it isn't set.

---
 debug_toolbar/models.py | 12 ++++++++++++
 example/settings.py     |  2 --
 tests/settings.py       |  2 --
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/debug_toolbar/models.py b/debug_toolbar/models.py
index d6b18aa..3bdb639 100644
--- a/debug_toolbar/models.py
+++ b/debug_toolbar/models.py
@@ -19,3 +19,15 @@ for middleware_path in settings.MIDDLEWARE_CLASSES:
     if issubclass(middleware_cls, DebugToolbarMiddleware):
         load_panel_classes()
         break
+
+def prepend_to_setting(setting_name, value):
+    """Insert value at the beginning of a list or tuple setting."""
+    values = getattr(settings, setting_name)
+    # Make a list [value] or tuple (value,)
+    value = type(values)((value,))
+    setattr(settings, setting_name, value + values)
+
+
+if not settings.INTERNAL_IPS:
+    prepend_to_setting('INTERNAL_IPS', '127.0.0.1')
+    prepend_to_setting('INTERNAL_IPS', '::1')
diff --git a/example/settings.py b/example/settings.py
index ce1f8e2..5f22afa 100644
--- a/example/settings.py
+++ b/example/settings.py
@@ -10,8 +10,6 @@ SECRET_KEY = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'
 
 DEBUG = True
 
-INTERNAL_IPS = ['127.0.0.1', '::1']
-
 TEMPLATE_DEBUG = True
 
 
diff --git a/tests/settings.py b/tests/settings.py
index d21e9e4..309147f 100644
--- a/tests/settings.py
+++ b/tests/settings.py
@@ -8,8 +8,6 @@ BASE_DIR = os.path.dirname(os.path.dirname(__file__))
 
 SECRET_KEY = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'
 
-INTERNAL_IPS = ['127.0.0.1', '::1']
-
 
 # Application definition
 
-- 
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