Template panel context cleanup.

All panels get a copy of the template context when created and use an updated
copy when rendering so they can have full access to context vars and avoid
making changes to the shared context.

Signed-off-by: Rob Hudson <rob@cogit8.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/debug_toolbar/panels/__init__.py b/debug_toolbar/panels/__init__.py
index cf65aa8..fa2e4b6 100644
--- a/debug_toolbar/panels/__init__.py
+++ b/debug_toolbar/panels/__init__.py
@@ -7,9 +7,13 @@ class DebugPanel(object):
     # name = Base
     has_content = False # If content returns something, set to true in subclass
 
+    # We'll maintain a local context instance so we can expose our template
+    # context variables to panels which need them:
+    context = {}
+
     # Panel methods
-    def __init__(self):
-        pass
+    def __init__(self, context={}):
+        self.context.update(context)
 
     def dom_id(self):
         return 'djDebug%sPanel' % (self.name.replace(' ', ''))