mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-06-04 23:06:24 -04:00
Mike Bayer
b8b51fe437
- scoping/class instrumenting behavior of sessionmaker moved into new scoping module which implements scoped_session() (subject to potential name change) - SessionContext / assignmapper are deprecated, replaced with scoped_session()
51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
from sqlalchemy.orm.scoping import ScopedSession, _ScopedExt
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from sqlalchemy.util import warn_deprecated
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from sqlalchemy.orm import create_session
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__all__ = ['SessionContext', 'SessionContextExt']
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class SessionContext(ScopedSession):
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"""Provides thread-local management of Sessions.
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Usage::
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context = SessionContext(sessionmaker(autoflush=True))
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"""
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def __init__(self, session_factory=None, scopefunc=None):
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warn_deprecated("SessionContext is deprecated. Use scoped_session().")
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if session_factory is None:
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session_factory=create_session
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super(SessionContext, self).__init__(session_factory, scopefunc=scopefunc)
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def get_current(self):
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return self.registry()
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def set_current(self, session):
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self.registry.set(session)
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def del_current(self):
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self.registry.clear()
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current = property(get_current, set_current, del_current,
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"""Property used to get/set/del the session in the current scope.""")
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def _get_mapper_extension(self):
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try:
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return self._extension
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except AttributeError:
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self._extension = ext = SessionContextExt(self)
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return ext
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mapper_extension = property(_get_mapper_extension,
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doc="""Get a mapper extension that implements `get_session` using this context. Deprecated.""")
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class SessionContextExt(_ScopedExt):
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def __init__(self, *args, **kwargs):
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warn_deprecated("SessionContextExt is deprecated. Use ScopedSession(enhance_classes=True)")
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super(SessionContextExt, self).__init__(*args, **kwargs)
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