- base_columns on ColumnElement becomes a list; as usual, because columns in CompoundSelects

may extend from more than one root column.
- keys_ok argument from corresponding_column() removed.  no more name-based matching of columns anywhere.
- DictDecorator is gone.  all row translators provided by orm.util.create_row_adapter().  Mapper
and contains_alias() cache the adapters on target mapper to avoid re-computation of adapters.
- create_row_adapter() accepts an "equivalent_columns" map as produced by Mapper, so that
row adapters can take join conditions into account (as usual again, to help with the CompoundSelects
produced by polymorphic_union).
- simplified TableSingleton to just provide lookup; moved all initialization into Table.
- the "properties" accessor on Mapper is removed; it now throws an informative
exception explaining the usage of mapper.get_property() and
mapper.iterate_properties

1 files changed, 0 insertions, 21 deletions

diff --git a/lib/sqlalchemy/util.py b/lib/sqlalchemy/util.py
index 9ad7e113c..e8c34b513 100644
--- a/lib/sqlalchemy/util.py
+++ b/lib/sqlalchemy/util.py
@@ -409,27 +409,6 @@ except ImportError:
             def __setattr__(self, key, value):
                 self._tdict[(thread.get_ident(), key)] = value
 
-class DictDecorator(dict):
-    """A Dictionary that delegates items not found to a second wrapped dictionary."""
-
-    def __init__(self, decorate):
-        self.decorate = decorate
-
-    def __getitem__(self, key):
-        try:
-            return dict.__getitem__(self, key)
-        except KeyError:
-            return self.decorate[key]
-
-    def __contains__(self, key):
-        return dict.__contains__(self, key) or key in self.decorate
-
-    def has_key(self, key):
-        return key in self
-
-    def __repr__(self):
-        return dict.__repr__(self) + repr(self.decorate)
-
 class OrderedSet(Set):
     def __init__(self, d=None):
         Set.__init__(self)