From 67b8a1ceda0d73739b18045c8b405a1d22b4480a Mon Sep 17 00:00:00 2001
From: Fernando Correa Neto <fcdoth@gmail.com>
Date: Tue, 9 Dec 2008 23:16:56 +0000
Subject: Add context.root to router so the root model can be easily accessed
 from a view

---
 CHANGES.txt             | 5 +++++
 docs/narr/traversal.rst | 7 +++++++
 repoze/bfg/router.py    | 1 +
 repoze/bfg/traversal.py | 5 ++++-
 4 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/CHANGES.txt b/CHANGES.txt
index 566aab498..a310d2c27 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,8 @@
+0.5.4 (12/9/2008)
+
+  - Add ``request.root`` to ``router.Router`` in order to have easy
+    access to the application root.
+
 0.5.3 (12/7/2008)
 
   - Remove the ``ITestingTemplateRenderer`` interface.  When
diff --git a/docs/narr/traversal.rst b/docs/narr/traversal.rst
index f85c012e6..ead48aac4 100644
--- a/docs/narr/traversal.rst
+++ b/docs/narr/traversal.rst
@@ -272,3 +272,10 @@ The :term:`view name` will always be available to a view as the
 single string (possibly the empty string if we're rendering a default
 view).
 
+The :term:`root` will always be available to a view as the
+``root`` attribute of the :term:`request` object.  It will be the
+root model instance of the current application.
+
+The :term:`context` will always be available to a view as the
+``context`` attribute of the :term:`request` object.  It will be the
+model instance of the current application.
\ No newline at end of file
diff --git a/repoze/bfg/router.py b/repoze/bfg/router.py
index cd040c0c8..89101cb5e 100644
--- a/repoze/bfg/router.py
+++ b/repoze/bfg/router.py
@@ -48,6 +48,7 @@ class Router(object):
         settings = queryUtility(ISettings)
         context, name, subpath = traverser(environ)
 
+        request.root = root
         request.context = context
         request.view_name = name
         request.subpath = subpath
diff --git a/repoze/bfg/traversal.py b/repoze/bfg/traversal.py
index 4c5bb930d..61b66c040 100644
--- a/repoze/bfg/traversal.py
+++ b/repoze/bfg/traversal.py
@@ -66,7 +66,10 @@ class ModelGraphTraverser(object):
 
 def find_root(model):
     """ Find the root node in the graph to which ``model``
-    belongs. Note that ``model`` should be :term:`location`-aware."""
+    belongs. Note that ``model`` should be :term:`location`-aware.
+    Note that the root node is available in the request object by 
+    accessing the ``request.root`` attribute.
+    """
     for location in lineage(model):
         if location.__parent__ is None:
             model = location
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