# HG changeset patch
# User Sylvain Thénault <sylvain.thenault@logilab.fr>
# Date 1276674797 -7200
# Node ID e501806ab4892f9583741ecb7163918bdc092cb8
# Parent  ab03e4adb4f110d3c186810dd8b7c8f03dbaf0fb
[entity] when .related() is called on a not-yet-saved entity, return an empty rset/list instead of raising an assertion error

diff -r ab03e4adb4f1 -r e501806ab489 entity.py
--- a/entity.py	Wed Jun 16 09:33:04 2010 +0200
+++ b/entity.py	Wed Jun 16 09:53:17 2010 +0200
@@ -751,7 +751,10 @@
             return self.related_cache(rtype, role, entities, limit)
         except KeyError:
             pass
-        assert self.has_eid()
+        if not self.has_eid():
+            if entities:
+                return []
+            return self.empty_rset()
         rql = self.related_rql(rtype, role)
         rset = self._cw.execute(rql, {'x': self.eid})
         self.set_related_cache(rtype, role, rset)