From: Robert Leftwich <rtl@pobox.com>
Date: Sun, 18 Jun 2006 22:16:36 +0000 (+0000)
Subject: Added some additional data to exception raised in PropertyLoader,_get_direction when... 
X-Git-Tag: rel_0_2_4~30
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f5c5c4e6a7041d10a83719a572b823d8cfbebb6c;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

Added some additional data to exception raised in PropertyLoader,_get_direction when cannot determine the direction to specify exactly which relation failed.
---

diff --git a/lib/sqlalchemy/orm/properties.py b/lib/sqlalchemy/orm/properties.py
index e56350cecb..a6125c8943 100644
--- a/lib/sqlalchemy/orm/properties.py
+++ b/lib/sqlalchemy/orm/properties.py
@@ -276,7 +276,7 @@ class PropertyLoader(mapper.MapperProperty):
         elif len([c for c in self.foreignkey if self.parent.unjoined_table.corresponding_column(c, False) is not None]):
             return sync.MANYTOONE
         else:
-            raise exceptions.ArgumentError("Cant determine relation direction " + repr(self.foreignkey))
+            raise exceptions.ArgumentError("Cant determine relation direction '%s', for '%s' in mapper '%s' with primary join\n '%s'" %(repr(self.foreignkey), self.key, str(self.mapper), str(self.primaryjoin)))
             
     def _find_dependent(self):
         """searches through the primary join condition to determine which side