From df3753c36b812814393d62a7fa3c4e7a146bbac8 Mon Sep 17 00:00:00 2001
From: gwen <gremond@cadoles.com>
Date: Wed, 27 Feb 2013 11:09:13 +0100
Subject: [PATCH] finally a getvalue without a getattr

---
 test/test_config_api.py |  7 +++++++
 tiramisu/config.py      | 19 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/test/test_config_api.py b/test/test_config_api.py
index fcfd7e9..eac3117 100644
--- a/test/test_config_api.py
+++ b/test/test_config_api.py
@@ -58,6 +58,13 @@ def test_iter_subconfig():
         zip(conf.gc, [("name", "ref"), ("dummy", False)]):
         assert name == gname
         assert value == gvalue
+
+def test_cfgimpl_get_value():
+    "same as getattr."
+    descr = make_description()
+    conf = Config(descr)
+    assert conf.cfgimpl_get_value(('gc', 'dummy')) == False
+
 #____________________________________________________________
 def test_getpaths():
     descr = make_description()
diff --git a/tiramisu/config.py b/tiramisu/config.py
index 1264077..2a1f9cb 100644
--- a/tiramisu/config.py
+++ b/tiramisu/config.py
@@ -79,6 +79,25 @@ class Config(object):
             raise ConfigError("setting not allowed")
         self._cfgimpl_context._cfgimpl_settings = settings
 
+    def cfgimpl_get_description(self):
+        return self._cfgimpl_descr
+
+    def cfgimpl_get_value(self, path):
+        """same as multiple getattrs
+
+        :param path: list or tuple of path
+
+        example : ``path = (sub_conf, opt)``  makes a getattr of sub_conf, then
+        a getattr of opt, and then returns the opt's value.
+
+        :returns: subconf or option's value
+        """
+        subpaths = list(path)
+        subconf_or_opt = self
+        for subpath in subpaths:
+            subconf_or_opt = getattr(subconf_or_opt, subpath)
+        return subconf_or_opt
+
     def _validate_duplicates(self, children):
         """duplicates Option names in the schema
         :type children: list of `Option` or `OptionDescription`