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-rw-r--r--lib/sqlalchemy/databases/sqlite.py11
-rw-r--r--lib/sqlalchemy/ext/activemapper.py1
-rw-r--r--lib/sqlalchemy/mods/threadlocal.py3
-rw-r--r--lib/sqlalchemy/orm/mapper.py3
-rw-r--r--test/ext/activemapper.py2
-rw-r--r--test/orm/manytomany.py6
6 files changed, 24 insertions, 2 deletions
diff --git a/lib/sqlalchemy/databases/sqlite.py b/lib/sqlalchemy/databases/sqlite.py
index d96c0eda1..da43ad1ea 100644
--- a/lib/sqlalchemy/databases/sqlite.py
+++ b/lib/sqlalchemy/databases/sqlite.py
@@ -126,6 +126,9 @@ class SQLiteExecutionContext(default.DefaultExecutionContext):
self._last_inserted_ids = [proxy().lastrowid]
class SQLiteDialect(ansisql.ANSIDialect):
+ def __init__(self, **kwargs):
+ self.supports_cast = (sqlite.sqlite_version >= "3.2.3")
+ ansisql.ANSIDialect.__init__(self, **kwargs)
def compiler(self, statement, bindparams, **kwargs):
return SQLiteCompiler(self, statement, bindparams, **kwargs)
def schemagenerator(self, *args, **kwargs):
@@ -222,6 +225,14 @@ class SQLiteDialect(ansisql.ANSIDialect):
table.columns[col]._set_primary_key()
class SQLiteCompiler(ansisql.ANSICompiler):
+ def visit_cast(self, cast):
+ if self.dialect.supports_cast:
+ super(SQLiteCompiler, self).visit_cast(cast)
+ else:
+ if len(self.select_stack):
+ # not sure if we want to set the typemap here...
+ self.typemap.setdefault("CAST", cast.type)
+ self.strings[cast] = self.strings[cast.clause]
def limit_clause(self, select):
text = ""
if select.limit is not None:
diff --git a/lib/sqlalchemy/ext/activemapper.py b/lib/sqlalchemy/ext/activemapper.py
index d21332e3a..957496e8e 100644
--- a/lib/sqlalchemy/ext/activemapper.py
+++ b/lib/sqlalchemy/ext/activemapper.py
@@ -25,6 +25,7 @@ except AttributeError:
self.context = SessionContext(*args, **kwargs)
def __getattr__(self, name):
return getattr(self.context.current, name)
+ session = property(lambda s:s.context.current)
objectstore = Objectstore(create_session)
diff --git a/lib/sqlalchemy/mods/threadlocal.py b/lib/sqlalchemy/mods/threadlocal.py
index 760a37e81..87d7f271c 100644
--- a/lib/sqlalchemy/mods/threadlocal.py
+++ b/lib/sqlalchemy/mods/threadlocal.py
@@ -27,7 +27,8 @@ class Objectstore(object):
self.context = SessionContext(*args, **kwargs)
def __getattr__(self, name):
return getattr(self.context.current, name)
-
+ session = property(lambda s:s.context.current)
+
def assign_mapper(class_, *args, **kwargs):
assignmapper.assign_mapper(objectstore.context, class_, *args, **kwargs)
diff --git a/lib/sqlalchemy/orm/mapper.py b/lib/sqlalchemy/orm/mapper.py
index 92d10ad10..beccb16af 100644
--- a/lib/sqlalchemy/orm/mapper.py
+++ b/lib/sqlalchemy/orm/mapper.py
@@ -201,6 +201,7 @@ class Mapper(object):
self.extension = None
previous = None
for ext in extlist:
+ ext.unchain()
if self.extension is None:
self.extension = ext
if previous is not None:
@@ -1164,6 +1165,8 @@ class MapperExtension(object):
def chain(self, ext):
self.next = ext
return self
+ def unchain(self):
+ self.next = None
def get_session(self):
"""called to retrieve a contextual Session instance with which to
register a new object. Note: this is not called if a session is
diff --git a/test/ext/activemapper.py b/test/ext/activemapper.py
index 2a44f8e5b..85466e29b 100644
--- a/test/ext/activemapper.py
+++ b/test/ext/activemapper.py
@@ -61,7 +61,7 @@ class testcase(testbase.PersistTest):
activemapper.metadata.connect(testbase.db)
activemapper.create_tables()
-
+
def tearDownAll(self):
clear_mappers()
activemapper.drop_tables()
diff --git a/test/orm/manytomany.py b/test/orm/manytomany.py
index 577903d47..7f1aa7ef7 100644
--- a/test/orm/manytomany.py
+++ b/test/orm/manytomany.py
@@ -83,6 +83,8 @@ class M2MTest(testbase.AssertMixin):
place_thingy.drop()
place.drop()
transition.drop()
+ objectstore.clear()
+ clear_mappers()
#testbase.db.tables.clear()
self.uninstall_threadlocal()
@@ -234,6 +236,8 @@ class M2MTest2(testbase.AssertMixin):
enrolTbl.drop()
studentTbl.drop()
courseTbl.drop()
+ objectstore.clear()
+ clear_mappers()
#testbase.db.tables.clear()
self.uninstall_threadlocal()
@@ -311,6 +315,8 @@ class M2MTest3(testbase.AssertMixin):
c2a1.drop()
a.drop()
c.drop()
+ objectstore.clear()
+ clear_mappers()
#testbase.db.tables.clear()
self.uninstall_threadlocal()