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� 1��fc @ s| d Z d d l 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 l m Z e � Z d � Z d � Z d � Z d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ e j e � d � � d e f d � � YZ d � Z d e f d � � YZ d a d � Z d S( s� Routines to handle the string class registry used by declarative. This system allows specification of classes and expressions used in :func:`_orm.relationship` using strings. i����Ni ( t attributes( t interfaces( t SynonymProperty( t ColumnProperty( t class_mapperi ( t exc( t inspection( t util( t _get_table_keyc C s� | | k rE | | } t | t � sO t | | g � } | | <qO n | | | <y | d } Wn( t k r� t d d � | d <} n X| j j d � } xX | r� | j d � } | j | � } x | D] } | j | � } q� W| j | | � q� Wd S( s^ Add a class to the _decl_class_registry associated with the given declarative class. t _sa_module_registryt .i N( t isinstancet _MultipleClassMarkert KeyErrort _ModuleMarkert Nonet __module__t splitt popt get_modulet add_class( t classnamet clst decl_class_registryt existingt root_modulet tokenst tokent module( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyR s" c C s� | | k r? | | } t | t � r5 | j | � q? | | =n y | d } Wn t k ra d SX| j j d � } xX | r� | j d � } | j | � } x | D] } | j | � } q� W| j | | � qw Wd S( NR R i ( R R t remove_itemR R R R R t remove_class( R R R R R R R R ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyR H s c C s_ | | k r t S| | } t | t � rP x/ | j D] } | | � r3 t Sq3 Wn | | � Sd S( s� test if a key is empty of a certain object. used for unit tests against the registry to see if garbage collection is working. "test" is a callable that will be passed an object should return True if the given object is the one we were looking for. We can't pass the actual object itself b.c. this is for testing garbage collection; the caller will have to have removed references to the object itself. N( t TrueR R t contentst False( t keyR t testt thingt sub_thing( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt _key_is_empty_ s R c B sM e Z d Z d Z d d � Z d � Z d � Z d � Z d � Z d � Z RS( sR refers to multiple classes of the same name within _decl_class_registry. t on_removeR t __weakref__c C sK | | _ t g | D] } t j | | j � ^ q � | _ t j | � d S( N( R' t sett weakreft reft _remove_itemR t _registriest add( t selft classesR' t item( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt __init__� s .c C s | j t j | � � d S( N( R, R* R+ ( R/ R ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyR � s c C s d � | j D� S( Nc s s | ] } | � Vq d S( N( ( t .0R+ ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pys <genexpr>� s ( R ( R/ ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt __iter__� s c C sz t | j � d k r; t j d d j | | g � � � n; t | j � d } | � } | d k rr t | � � n | Sd S( Ni sx Multiple classes found for path "%s" in the registry of this declarative base. Please use a fully module-qualified path.R i ( t lenR R t InvalidRequestErrort joint listR t NameError( R/ t pathR" R+ R ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt attempt_get� s c C sC | j j | � | j s? t j | � | j r? | j � q? n d S( N( R t discardR- R' ( R/ R+ ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyR, � s c C s� t g g t | j � D] } | � ^ q D] } | d k r) | j ^ q) � } | j | k r| t j d | j | j f � n | j j t j | | j � � d S( Ns� This declarative base already contains a class with the same class name and module name as %s.%s, and will be replaced in the string-lookup table.( R) R8 R R R R t warnt __name__R. R* R+ R, ( R/ R1 R+ R t modules( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt add_item� s ) ( R' R R( N( R> R t __doc__t __slots__R R2 R R4 R; R, R@ ( ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyR y s R c B s\ e Z d Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s> Refers to a module name within _decl_class_registry. t parentt nameR t mod_nsR: R( c C si | | _ | | _ i | _ t | � | _ | j rO | j j | j g | _ n g | _ t j | � d S( N( RC RD R t _ModNSRE R: R- R. 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If this is a class name, consider adding this relationship() to the %r class after both dependent classes have been defined.t from_( R t raise_R R6 R\ RC Rd R ( R/ RD t err( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt _raise_for_namev s "c C s� | j } | j } d } yF x? | j d � D]. } | d k rJ | | } q+ t | | � } q+ WWnL t k r� } | j | | � nD t k r� } | j | j d | � n Xt | t � r� | j S| Sd S( NR i ( Rd Rf R R RI R Ru R9 t argsR RS R ( R/ RD t dt rvalR Rt t n( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt _resolve_name� s c C sj y9 t | j t � | j � } t | t � r4 | j S| SWn* t k re } | j | j d | � n Xd S( Ni ( t evalRd t globalsRf R RS R R9 Ru Rv ( R/ t xRy ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt __call__� s ( R R\ Rd Re Rf Rg Rh ( R> R RB R! R2 Rj Ru Rz R~ ( ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyRc = s % c s� t d k rZ d d l } d d l m } m } t j | j � j i | d 6| d 6� a n t � � f d � } � � f d � } | | f S( Ni����( t foreignt remoteR R� c s t � � t | d | �S( NRh ( Rc t _fallback_dict( Rd Rh ( R R\ ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt resolve_arg� s c s t � � t | � j S( N( Rc R� Rz ( Rd ( R R\ ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt resolve_name� s ( R� R t sqlalchemyt sqlalchemy.ormR R� R t immutabledictt __dict__t unionR! ( R R\ R� R R� R� R� ( ( R R\ sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt _resolver� s ( RA R* RM R R t descriptor_propsR t propertiesR R R R R t sql.schemaR R) R- R R R& t objectR R RF RS t _inspectsR_ Rb Rc R R� R� ( ( ( sM /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/clsregistry.pyt <module> s2 ( @9 e