# HG changeset patch
# User Sylvain Thénault <sylvain.thenault@logilab.fr>
# Date 1251217565 -7200
# Node ID 5082dec70ed8541a33c1ff6a78fab0ae31df52f0
# Parent  d8f2e53702be2c3b5aac904086dbc445f3c2794b
[wf] ensure fromstates given, allow to give an entity (avoid spotless error, we can iter on entities...)

diff -r d8f2e53702be -r 5082dec70ed8 entities/wfobjs.py
--- a/entities/wfobjs.py	Tue Aug 25 18:24:54 2009 +0200
+++ b/entities/wfobjs.py	Tue Aug 25 18:26:05 2009 +0200
@@ -111,6 +111,9 @@
         self.req.execute('SET T transition_of WF '
                          'WHERE T eid %(t)s, WF eid %(wf)s',
                          {'t': tr.eid, 'wf': self.eid}, ('t', 'wf'))
+        assert fromstates, fromstates
+        if not isinstance(fromstates, (tuple, list)):
+            fromstates = (fromstates,)
         for state in fromstates:
             if hasattr(state, 'eid'):
                 state = state.eid