Start on bfg.

1 files changed, 37 insertions, 0 deletions

diff --git a/repoze/bfg/zodb.py b/repoze/bfg/zodb.py
new file mode 100644
index 000000000..976c687fb
--- /dev/null
+++ b/repoze/bfg/zodb.py
@@ -0,0 +1,37 @@
+from zope.interface import implements
+
+from repoze.zodbconn.middleware import get_conn
+
+from repoze.bfg.interfaces import IPolicy
+
+class ZODBGetitemPolicy:
+
+    implements(IPolicy)
+
+    def __init__(self, dbname, prefix=()):
+        self.dbname = dbname
+        self.prefix = prefix
+        self.get_conn = get_conn
+        
+    def __call__(self, environ):
+        conn = self.get_conn(environ, self.dbname)
+        if conn is None:
+            raise ValueError('No such connection %s' % self.dbname)
+
+        path = environ['PATH_INFO'].split('/')
+        path = list(self.prefix) + path
+        
+        ob = conn.open()
+
+        name = ''
+        while path:
+            element = path.pop(0)
+            try:
+                ob = ob[element]
+            except KeyError:
+                if path:
+                    name = path.pop(0)
+                break
+
+        return ob, name, path
+