# HG changeset patch
# User Sylvain Thenault <sylvain.thenault@logilab.fr>
# Date 1229704443 -3600
# Node ID 3417739305a13f958b5682dccd5765e4f9e66438
# Parent  cb1f8a1d9d999558830644ef6b1ae7b66631e1ce
don't fail if row is None (at least necessary when searching for possible views)

diff -r cb1f8a1d9d99 -r 3417739305a1 common/selectors.py
--- a/common/selectors.py	Fri Dec 19 17:22:10 2008 +0100
+++ b/common/selectors.py	Fri Dec 19 17:34:03 2008 +0100
@@ -359,8 +359,7 @@
 
 @lltrace
 def has_related_entities(cls, req, rset, row=None, col=None, **kwargs):
-    assert row is not None
-    return bool(rset.get_entity(row, col).related(cls.rtype, role(cls)))
+    return bool(rset.get_entity(row or 0, col or 0).related(cls.rtype, role(cls)))
     
 @lltrace
 def one_has_relation_selector(cls, req, rset, row=None, col=None, **kwargs):