1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
from sqlalchemy.orm.scoping import ScopedSession, _ScopedExt
from sqlalchemy.util import warn_deprecated
from sqlalchemy.orm import create_session
__all__ = ['SessionContext', 'SessionContextExt']
class SessionContext(ScopedSession):
"""Provides thread-local management of Sessions.
Usage::
context = SessionContext(sessionmaker(autoflush=True))
"""
def __init__(self, session_factory=None, scopefunc=None):
warn_deprecated("SessionContext is deprecated. Use scoped_session().")
if session_factory is None:
session_factory=create_session
super(SessionContext, self).__init__(session_factory, scopefunc=scopefunc)
def get_current(self):
return self.registry()
def set_current(self, session):
self.registry.set(session)
def del_current(self):
self.registry.clear()
current = property(get_current, set_current, del_current,
"""Property used to get/set/del the session in the current scope.""")
def _get_mapper_extension(self):
try:
return self._extension
except AttributeError:
self._extension = ext = SessionContextExt(self)
return ext
mapper_extension = property(_get_mapper_extension,
doc="""Get a mapper extension that implements `get_session` using this context. Deprecated.""")
class SessionContextExt(_ScopedExt):
def __init__(self, *args, **kwargs):
warn_deprecated("SessionContextExt is deprecated. Use ScopedSession(enhance_classes=True)")
super(SessionContextExt, self).__init__(*args, **kwargs)
|
