# HG changeset patch
# User sylvain.thenault@logilab.fr
# Date 1232382522 -3600
# Node ID 49e4717e237161c6f1ccb783d083e831cd53bb1b
# Parent  3b3c2b6699fd5c788cda056e5a87a2b047f10fd8
error resilient state method

diff -r 3b3c2b6699fd -r 49e4717e2371 common/mixins.py
--- a/common/mixins.py	Mon Jan 19 08:57:34 2009 +0100
+++ b/common/mixins.py	Mon Jan 19 17:28:42 2009 +0100
@@ -165,7 +165,11 @@
     
     @property
     def state(self):
-        return self.in_state[0].name
+        try:
+            return self.in_state[0].name
+        except IndexError:
+            self.warning('entity %s has no state', self)
+            return None
     
     @property
     def displayable_state(self):