- [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

2 files changed, 13 insertions, 1 deletions

diff --git a/lib/sqlalchemy/util/__init__.py b/lib/sqlalchemy/util/__init__.py
index 76c3c829d..3cfe55f9c 100644
--- a/lib/sqlalchemy/util/__init__.py
+++ b/lib/sqlalchemy/util/__init__.py
@@ -7,7 +7,7 @@
 from compat import callable, cmp, reduce, defaultdict, py25_dict, \
     threading, py3k_warning, jython, pypy, win32, set_types, buffer, pickle, \
     update_wrapper, partial, md5_hex, decode_slice, dottedgetter,\
-    parse_qsl, any, contextmanager
+    parse_qsl, any, contextmanager, namedtuple
 
 from _collections import NamedTuple, ImmutableContainer, immutabledict, \
     Properties, OrderedProperties, ImmutableProperties, OrderedDict, \
diff --git a/lib/sqlalchemy/util/compat.py b/lib/sqlalchemy/util/compat.py
index 99b92b1e3..c5339d013 100644
--- a/lib/sqlalchemy/util/compat.py
+++ b/lib/sqlalchemy/util/compat.py
@@ -112,6 +112,18 @@ else:
     reduce = reduce
 
 try:
+    from collections import namedtuple
+except ImportError:
+    def namedtuple(typename, fieldnames):
+        def __new__(cls, *values):
+            tup = tuple.__new__(tuptype, values)
+            for i, fname in enumerate(fieldnames):
+                setattr(tup, fname, tup[i])
+            return tup
+        tuptype = type(typename, (tuple, ), {'__new__':__new__})
+        return tuptype
+
+try:
     from collections import defaultdict
 except ImportError:
     class defaultdict(dict):