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� 1��fc # @ sq d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z d d g Z d e f d � � YZ e e d d d d d d g d d d d d d d d d d d d d d d! d" d# d$ d% d& d' d( d) d* d+ d, d- d. d/ g d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d: g �d e f d; � � Y� Z e Z d< S(= i ( t class_mapper( t exc( t Sessioni ( t create_proxy_methods( t ScopedRegistry( t ThreadLocalRegistry( t warn( t warn_deprecatedt scoped_sessiont ScopedSessionMixinc B s) e Z e d � � Z d � Z d � Z RS( c C s | j � S( N( t registry( t self( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyt _proxied s c K s| | rI | j j � r' t j d � � qU | j | � } | j j | � n | j � } | j rx | j rx t d d � n | S( s� Return the current :class:`.Session`, creating it using the :attr:`.scoped_session.session_factory` if not present. :param \**kw: Keyword arguments will be passed to the :attr:`.scoped_session.session_factory` callable, if an existing :class:`.Session` is not present. If the :class:`.Session` is present and keyword arguments have been passed, :exc:`~sqlalchemy.exc.InvalidRequestError` is raised. sE Scoped session is already present; no new arguments may be specified.s� Using `scoped_session` with asyncio is deprecated and will raise an error in a future version. Please use `async_scoped_session` instead.s 1.4.23( R t hast sa_exct InvalidRequestErrort session_factoryt sett _support_asynct _is_asyncioR ( R t kwt sess( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyt __call__ s c K s0 | j j � r t d � n | j j | � d S( s� reconfigure the :class:`.sessionmaker` used by this :class:`.scoped_session`. See :meth:`.sessionmaker.configure`. st At least one scoped session is already present. configure() can not affect sessions that have already been created.N( R R R R t configure( R t kwargs( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyR 9 s ( t __name__t __module__t propertyR R R ( ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyR s s :class:`_orm.Session`s$ :class:`_orm.scoping.scoped_session`t classmethodst close_allt object_sessiont identity_keyt methodst __contains__t __iter__t addt add_allt begint begin_nestedt closet committ connectiont deletet executet expiret expire_allt expunget expunge_allt flusht gett get_bindt is_modifiedt bulk_save_objectst bulk_insert_mappingst bulk_update_mappingst merget queryt refresht rollbackt scalart scalarst attributest bindt dirtyt deletedt newt identity_mapt is_activet autoflusht no_autoflusht infot autocommitc B s; e Z d Z e Z d Z d d � Z d � Z d d � Z RS( s4 Provides scoped management of :class:`.Session` objects. See :ref:`unitofwork_contextual` for a tutorial. .. note:: When using :ref:`asyncio_toplevel`, the async-compatible :class:`_asyncio.async_scoped_session` class should be used in place of :class:`.scoped_session`. c C s7 | | _ | r$ t | | � | _ n t | � | _ d S( s� Construct a new :class:`.scoped_session`. :param session_factory: a factory to create new :class:`.Session` instances. This is usually, but not necessarily, an instance of :class:`.sessionmaker`. :param scopefunc: optional function which defines the current scope. If not passed, the :class:`.scoped_session` object assumes "thread-local" scope, and will use a Python ``threading.local()`` in order to maintain the current :class:`.Session`. If passed, the function should return a hashable token; this token will be used as the key in a dictionary in order to store and retrieve the current :class:`.Session`. N( R R R R ( R R t scopefunc( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyt __init__� s c C s3 | j j � r" | j � j � n | j j � d S( s� Dispose of the current :class:`.Session`, if present. This will first call :meth:`.Session.close` method on the current :class:`.Session`, which releases any existing transactional/connection resources still being held; transactions specifically are rolled back. The :class:`.Session` is then discarded. Upon next usage within the same scope, the :class:`.scoped_session` will produce a new :class:`.Session` object. N( R R R' t clear( R ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyt remove� s c s& d t f � � f d � � Y} | � S( s0 return a class property which produces a :class:`_query.Query` object against the class and the current :class:`.Session` when called. e.g.:: Session = scoped_session(sessionmaker()) class MyClass(object): query = Session.query_property() # after mappers are defined result = MyClass.query.filter(MyClass.name=='foo').all() Produces instances of the session's configured query class by default. To override and use a custom implementation, provide a ``query_cls`` callable. The callable will be invoked with the class's mapper as a positional argument and a session keyword argument. There is no limit to the number of query properties placed on a class. R8 c s e Z � � f d � Z RS( c sd yH t | � } | rG � r1 � | d � j � �S� j � j | � Sn Wn t j k r_ d SXd S( Nt session( R R R8 t orm_exct UnmappedClassErrort None( t st instancet ownert mapper( t query_clsR ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyt __get__� s ( R R RU ( ( RT R ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyR8 � s ( t object( R RT R8 ( ( RT R sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyt query_property� s N( R R t __doc__t FalseR RO R RI RK RW ( ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyR K s ; N( t R R RM RL R R t utilR R R R R t __all__RV R R t ScopedSession( ( ( sI /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/scoping.pyt <module> sp 6 h