- [feature] The of_type() construct on attributes

now accepts aliased() class constructs as well
as with_polymorphic constructs, and works with
query.join(), any(), has(), and also
eager loaders subqueryload(), joinedload(),
contains_eager()
[ticket:2438] [ticket:1106]
- a rewrite of the query path system to use an
object based approach for more succinct usage.  the system
has been designed carefully to not add an excessive method overhead.
- [feature] select() features a correlate_except()
method, auto correlates all selectables except those
passed.   Is needed here for the updated any()/has()
functionality.
- remove some old cruft from LoaderStrategy, init(),debug_callable()
- use a namedtuple for _extended_entity_info.  This method should
become standard within the orm internals
- some tweaks to the memory profile tests, number of runs can
be customized to work around pysqlite's very annoying behavior
- try to simplify PropertyOption._get_paths(), rename to _process_paths(),
returns a single list now.  overall works more completely as was needed
for of_type() functionality

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/sqlalchemy/orm/state.py b/lib/sqlalchemy/orm/state.py
index 9b0f7538f..720554483 100644
--- a/lib/sqlalchemy/orm/state.py
+++ b/lib/sqlalchemy/orm/state.py
@@ -24,6 +24,7 @@ from sqlalchemy.orm.attributes import PASSIVE_NO_RESULT, \
 mapperlib = util.importlater("sqlalchemy.orm", "mapperlib")
 sessionlib = util.importlater("sqlalchemy.orm", "session")
 
+
 class InstanceState(object):
     """tracks state information at the instance level."""
 
@@ -177,7 +178,7 @@ class InstanceState(object):
             ) if k in self.__dict__ 
         )
         if self.load_path:
-            d['load_path'] = interfaces.serialize_path(self.load_path)
+            d['load_path'] = self.load_path.serialize()
 
         self.manager.dispatch.pickle(self, d)
 
@@ -222,7 +223,8 @@ class InstanceState(object):
         ])
 
         if 'load_path' in state:
-            self.load_path = interfaces.deserialize_path(state['load_path'])
+            self.load_path = orm_util.PathRegistry.\
+                                deserialize(state['load_path'])
 
         # setup _sa_instance_state ahead of time so that 
         # unpickle events can access the object normally.