[Jc
@ sV d Z d d k Z d d k l Z l Z d d k Z d d k Z d d k l Z d d k l Z l
Z
l Z d d k i
Z d Z d Z d a e i d Z e i d Z e i d Z e i d Z e Z e i d
Z e Z d Z g Z d e i f d
YZ d e f d YZ! d e" f d YZ# d Z$ d e" f d YZ% d e% f d YZ& d e& f d YZ' d e& f d YZ( d e% f d YZ) d e i* f d YZ+ d e" f d YZ, d! e- f d" YZ. d# e. f d$ YZ/ d% e0 f d& YZ1 e1 d d d Z2 d' Z3 d( Z4 d) Z5 e d* Z6 d+ Z7 d, Z8 d- Z9 e d e e d d. Z: d d d d d/ Z; d0 Z< d1 Z= d2 Z> d3 Z? d4 Z@ d5 ZA d6 ZB d7 ZC d8 e" f d9 YZD eD ZE d: ZF eE iG ZG eE iH ZI eF e i d; d< ZJ e iK eJ d= ZL d S(> s Defines SQLAlchemy's system of class instrumentation..
This module is usually not directly visible to user applications, but
defines a large part of the ORM's interactivity.
SQLA's instrumentation system is completely customizable, in which
case an understanding of the general mechanics of this module is helpful.
An example of full customization is in /examples/custom_attributes.
iN( t
attrgettert
itemgetter( t util( t
interfacest collectionst exct PASSIVE_NORESULTt ATTR_WAS_SETt NO_VALUEt NEVER_SETt PASSIVE_NO_CALLABLESt __sa_instrumentation_manager__t QueryableAttributec B s} e Z d d d d Z d Z d Z d Z d Z d Z d Z e
d Z d Z d Z
e d
Z RS( c C s( | | _ | | _ | | _ | | _ d S( s Construct an InstrumentedAttribute.
comparator
a sql.Comparator to which class-level compare/math events will be sent
N( t keyt implt
comparatort parententity( t selfR
R R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt __init___ s c K s" | i i t | t | | S( N( R t get_historyt instance_statet
instance_dict( R t instancet kwargs( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR j s c C s | S( N( ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt __selectable__m s c C s
| i i S( N( R t __clause_element__( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR q s c C s | i i | S( N( R t label( R t name( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR t s c O s | | i | | S( N( R ( R t opt otherR ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt operatew s c K s | | | i | S( N( R ( R R R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt reverse_operatez s c C s | i i | d | S( Nt
optimistic( R t hasparent( R t stateR ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR! } s c C s\ y t | i | SWnA t j
o5 t d t | i t | i i | f n Xd S( Ns3 Neither %r object nor %r object has an attribute %r( t getattrR t AttributeErrort typet __name__( R R
( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt __getattr__ s c C s t | i d | i i S( Nt .( t reprR t propertyR
( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt __str__ s c C s
| i i S( N( R R* ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR* s N( R& t
__module__t NoneR R R R R R R t FalseR! R' R+ R* ( ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR ] s
t InstrumentedAttributec B s) e Z d Z d Z d Z d Z RS( s@ Public-facing descriptor, placed in the mapped class dictionary.c C s) | i i t | t | | d d S( N( R t setR R R- ( R R t value( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt __set__ s c C s# | i i t | t | d S( N( R t deleteR R ( R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt
__delete__ s c C s1 | d j o | S| i i t | t | S( N( R- R t getR R ( R R t owner( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt __get__ s
( R& R, t __doc__R2 R4 R7 ( ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR/ s t
_ProxyImplc B s e Z e Z e Z d Z RS( c C s
| | _ d S( N( R
( R R
( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s ( R& R, R. t accepts_scalar_loadert dont_expire_missingR ( ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR9 s c sX d t f f d Y} t i d | _ t i | t d d d | S( s Create an InstrumentedAttribute / user descriptor hybrid.
Returns a new InstrumentedAttribute type that delegates descriptor
behavior and getattr() to the given descriptor.
t Proxyc se e Z d Z d Z e i d Z f d Z f d Z f d Z f d Z
RS( s@ A combination of InsturmentedAttribute and a regular descriptor.c S s> | | _ | | _ | _ | | _ | | _ t | | _ d S( N( R
t
descriptort user_propt _comparatort
_parententityR9 R ( R R
R= R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s
c S s- t i | i o | i | _ n | i S( N( R t callableR? ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c s2 | d j o i | | | S i | | S( s, Delegate __get__ to the original descriptor.N( R- R7 ( R R R6 ( R= ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR7 s
c s i | | S( s, Delegate __set__ to the original descriptor.( R2 ( R R R1 ( R= ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR2 s c s
i | S( s/ Delegate __delete__ to the original descriptor.( R4 ( R R ( R= ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR4 s c s y t | SWnk t j
o_ y t | i | SWq t j
o5 t d t i t | i i | f q Xn Xd S( sB Delegate __getattr__ to the original descriptor and/or comparator.s3 Neither %r object nor %r object has an attribute %rN( R# R$ R? R% R& ( R t attribute( R= ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR' s ( R& R, R8 R R t memoized_propertyR R7 R2 R4 R' ( ( R= ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR< s R R= t
from_instance( R/ R% R& R t monkeypatch_proxied_specials( R= R< ( ( R= s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt proxied_attribute_factory s /t
AttributeImplc B s e Z d Z e d d e d e d Z e d Z d Z d Z e d Z
d Z d Z e d Z
e d Z e d
Z d Z e d Z d
Z RS( s4 internal implementation for instrumented attributes.c
K s | | _ | | _ | | _ | | _ | p | | _ | d j o t i | _ n
| | _ t i
| p g | _ | | _ | | _
d S( s Construct an AttributeImpl.
\class_
associated class
key
string name of the attribute
\callable_
optional function which generates a callable based on a parent
instance, which produces the "default" values for a scalar or
collection attribute when it's first accessed, if not present
already.
trackparent
if True, attempt to track if an instance has a parent attached
to it via this attribute.
extension
a single or list of AttributeExtension object(s) which will
receive set/delete/append/remove/etc. events.
compare_function
a function that compares two values which are normally
assignable to this attribute.
active_history
indicates that get_history() should always return the "old" value,
even if it means executing a lazy callable upon attribute change.
This flag is set to True if any extensions are present.
parent_token
Usually references the MapperProperty, used as a key for
the hasparent() function to identify an "owning" attribute.
Allows multiple AttributeImpls to all match a single
owner attribute.
dont_expire_missing
if True, don't add an "expiry" callable to this attribute
during state.expire_attributes(None), if no value is present
for this key.
N( t class_R
t callable_t trackparentt parent_tokenR- t operatort eqt is_equalR t to_listt
extensionst active_historyR; ( R RH R
RI RJ t extensiont compare_functionRQ RK R; R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s 0
c C s | i i t | i | S( s+ Return the boolean value of a `hasparent` flag attached to the given item.
The `optimistic` flag determines what the default return value
should be if no `hasparent` flag can be located.
As this function is used to determine if an instance is an
*orphan*, instances that were loaded from storage should be
assumed to not be orphans, until a True/False value for this
flag is set.
An instance attribute that is loaded by a callable function
will also not have a `hasparent` flag.
( t parentsR5 t idRK ( R R" R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR! $ s c C s | | i t | i | i | | } | i | | | | | } | | | i s ( t
_set_iterable( R R" R[ R1 Rc ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR0 s
c
C s | i | \ } } | o t | | | } n
t | } | i | | } | | j o d S| i | | t | | i | | | } | | | i | i i | i _ t | i | | _ | i d | i d S( NR ( RH R R R t _generate_initR t install_member( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C s( | i o | i d d | _ n d S( NR ( R t uninstall_memberR- ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt _uninstrument_init s
c C sP t d j o d d k l a n | i o t i | | St i | | Sd S( Ni( R" ( R" R- t sqlalchemy.ormRx t MutableAttrInstanceStatet
InstanceState( R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt _create_instance_state s
c C s t | i | i | d S( s0 Mark this instance as the manager for its class.N( R RH t MANAGER_ATTR( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C s t | i | i d S( s) Dissasociate this manager from its class.N( t delattrRH R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt dispose s c C s
t | i S( N( R R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt manager_getter s c C s | o | | i j o d Sn | | i | <| i | | | | | InstanceState callable.
"state getter" callables should raise either KeyError or
AttributeError if no InstanceState could be found for the
instance.
( R R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt state_getter< s c C s
t d S( Nt __dict__( R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt dict_getterF s c C s t | | i S( N( R R ( R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt has_stateI s c C s | i | i | d | S( t TODOR ( R R! ( R R" R
R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt
has_parentL s c C s t S( s= All ClassManagers are non-zero regardless of attribute state.( Rt ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt __nonzero__P s c C s d | i i | i t | f S( Ns <%s of %r at %x>( t __class__R& RH RU ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt __repr__T s N(+ R& R, R8 R R R R R- R R R R R R R R R R R. R R R R R R R R R R R R R* R R R R R R R R R R R ( ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR c sL
t _ClassInstrumentationAdapterc B s e Z d Z d Z d Z d Z d Z e d Z d Z d Z
d Z d Z d
Z
d Z d Z d d
Z d Z d d Z d Z d Z d Z d Z RS( s? Adapts a user-defined InstrumentationManager to a ClassManager.c K sJ | | _ | i i | | _ | i i | | _ t i | | | d S( N( t _adaptedR t
_get_stateR t _get_dictR R ( R RH t overridet kw( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR [ s c C s | i i | i | d S( N( R" R RH ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR b s c C s | i i | i d S( N( R" R RH ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR e s c C s | i i | i S( N( R" R RH ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR h s c C s> t i | | | | | p | i i | i | | n d S( N( R R R" RH ( R R
R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR k s c C s! | i i | i | | | d S( N( R" R RH ( R R
( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR p s c C s | i i | i | | d S( N( R" R RH ( R R
R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s s c C s | i i | i | d S( N( R" R RH ( R R
( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR v s c C s | i i | i | | d S( N( R" R RH ( R R
R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR y s c C s | i i | i | d S( N( R" R RH ( R R
( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR | s c C s | i i | i | | S( N( R" R RH ( R R
R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C sG t | i d d } | o | | | | St i | | | | Sd S( NR ( R# R" R- R R ( R R
R" R t delegate( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C s) | i i | i } | i | | | S( N( RH R R ( R R" R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C s& | i | o t S| i | Sd S( s Install a default InstanceState if none is present.
A private convenience method used by the __init__ decorator.
N( R R. R ( R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C sS | i i | i | | d j o | i | } n | i i | i | | | S( N( R" t initialize_instance_dictRH R- R t
install_state( R R R" ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s
c C s | i i | i | d S( N( R" t remove_stateRH ( R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C s5 y | i | } t SWn t i j
o t SXd S( N( R# Rt R t NO_STATER. ( R R R" ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s
c C s | i S( N( R# ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C s | i S( N( R$ ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s N( R& R, R8 R R R R R. R R R R R R R R R- R R R R R R R ( ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR! X s(
Rn c B s e Z d Z d Z e e d Z e e d Z e e d Z d Z d Z
d Z d Z d Z
d Z d
Z e d Z RS(
sg A 3-tuple of added, unchanged and deleted values.
Each tuple member is an iterable sequence.
i i i c C s t i | | | | f S( N( t tupleR ( R R R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C s
| t j S( N( R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c C s | i | i | i S( N( R R R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt sum s c C s | i | i S( N( R R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt non_deleted s c C s | i | i S( N( R R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt non_added s c C s t | i p | i S( N( R R R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt has_changes s c C s t g } | i D]' } | | d j o
t | p d q ~ g } | i D]' } | | d j o
t | p d qL ~ g } | i D]' } | | d j o
t | p d q ~ S( N( Rn R R- R R R ( R R t ct _[2]t _[3]( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt as_state s ;;c C s | i i | i t } t | d o| i | | i | } | t j o | t | d d S| t j o | d t | d St i
| } t i
| } | g } | D] } | | j o | | q q ~ g } | D] } | | j o | | q q ~ g }
| D] } | | j o |
| qq~
Sn | t j o: | d t t g j o
| g } n d } | d d | S| t j o | | g d d
S| t j p | i | | t
j o | d | g d S| d j o
| g } n d
} | | g d | Sd S( NR ( ( ( ( ( ( ( ( ( ( ( ( ( ( R_ R5 R
R R R Ri R R R t IdentitySetR- RN Rt ( R RB R" R R t current_sett original_setR t xR2 R3 R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRo s6
//7
( ( R& R, R8 t __slots__R* R R R R R R R- R. R/ R0 R4 t classmethodRo ( ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRn s c C s' t | t i p t | } n | S( N( R R" R R ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt _conditional_instance_state s c K s t t | | | S( s Return a History record for the given object and attribute key.
obj is an instrumented object instance. An InstanceState
is accepted directly for backwards compatibility but
this usage is deprecated.
( t get_state_historyR; ( R R
R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c K s | i | | S( N( R ( R" R
R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR< s c C s+ t | } t | } | i | | | S( R ( R R R ( R R R
R R R" ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s c K s0 t | } | d j o t | | } n | S( sb Register class instrumentation.
Returns the existing or newly created class manager.
N( R R- R ( RH R& R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt register_class s
c C s t i | d S( s! Unregister class instrumentation.N( t instrumentation_registryR ( RH ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt unregister_class& s c K sk | i d d } | i d d } | i d d } t | | | | | | p t | | | n d S( Nt proxy_propertyR R ( Rh R- t register_descriptort register_attribute_impl( RH R
R& R@ R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt register_attribute+ s c K s t | } | o/ | i d d } | i | | p t }
n | i d d }
| o | | | |
| } n | o t | | | d |
| } n\ | o t | | | | } n< | o t | | | d | | } n t | | | | } | | | _ | i
| d S( NR R} ( R Rh R- R R R R Rv Rj R R ( RH R
t uselistRI t useobjectt mutable_scalarst
impl_classR& R R R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRB 5 s&
c C sd t | } | o% t | } | | | | | } n t | d | d | } | i | | d S( NR R ( R RF R/ R ( RH R
R@ R R t property_R t
proxy_typeR= ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRA S s c C s t | i | d S( N( R R ( RH R
( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt unregister_attribute^ s c C s% t | } | i } t | | | S( sv Initialize a collection attribute and return the collection adapter.
This function is used to provide direct access to collection internals
for a previously unloaded attribute. e.g.::
collection_adapter = init_collection(someobject, 'elements')
for elem in values:
collection_adapter.append_without_event(elem)
For an easier way to do the above, see :func:`~sqlalchemy.orm.attributes.set_committed_value`.
obj is an instrumented object instance. An InstanceState
is accepted directly for backwards compatibility but
this usage is deprecated.
( R; Ri t init_state_collection( R R
R" R[ ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt init_collectiona s c C s4 | i | } | i | | } | i | | | S( sD Initialize a collection attribute and return the collection adapter.( R RW R ( R" R[ R
t attrR ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRK v s c C s9 t | t | } } | i | i | | | d S( sd Set the value of an attribute with no history events.
Cancels any previous history present. The value should be
a scalar value for scalar-holding attributes, or
an iterable for any collection-holding attribute.
This is the same underlying method used when a lazy loader
fires off and loads additional data from the database.
In particular, this method can be used by application code
which has loaded additional attributes or collections through
separate queries, which can then be attached to an instance
as though it were part of its original loaded state.
N( R R R Rb ( R R
R1 R" R[ ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRb } s c C s< t | t | } } | i | i | | | d d S( sV Set the value of an attribute, firing history events.
This function may be used regardless of instrumentation
applied directly to the class, i.e. no descriptors are required.
Custom attribute management schemes will need to make usage
of this method to establish attribute state as understood
by SQLAlchemy.
N( R R R R0 R- ( R R
R1 R" R[ ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt
set_attribute s
c C s2 t | t | } } | i | i | | S( s^ Get the value of an attribute, firing any callables required.
This function may be used regardless of instrumentation
applied directly to the class, i.e. no descriptors are required.
Custom attribute management schemes will need to make usage
of this method to make usage of attribute state as understood
by SQLAlchemy.
( R R R R5 ( R R
R" R[ ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt
get_attribute s
c C s6 t | t | } } | i | i | | d S( sU Delete the value of an attribute, firing history events.
This function may be used regardless of instrumentation
applied directly to the class, i.e. no descriptors are required.
Custom attribute management schemes will need to make usage
of this method to establish attribute state as understood
by SQLAlchemy.
N( R R R R3 ( R R
R" R[ ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt
del_attribute s
c C s t | i i | d t S( s Return True if the given attribute on the given instance is instrumented
by the attributes package.
This function may be used regardless of instrumentation
applied directly to the class, i.e. no descriptors are required.
R ( R R R Rt ( R R
( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s t InstrumentationRegistryc B sn e Z d Z e i Z e i Z e i Z e
Z d Z d Z
d Z d Z d Z d Z RS( s/ Private instrumentation registration singleton.c K sY | d j p t t | d j p t x2 t D]$ } | | } | d j o Pq5 q5 Wt } | i | i | g } | o# t d | i t | f n | | } t
| t p t | | } n | t j o" | i o t
| _ t | n | i | | | _ | i | i | <| i | i | <| i | i | <| S( NsR multiple instrumentation implementations specified in %s inheritance hierarchy: %r( R- t AssertionErrorR t instrumentation_findersR t! _collect_management_factories_fort
differencet TypeErrorR& R R R! t _extendedRt t _install_lookup_strategyR R R t _manager_findersR t _state_findersR t
_dict_finders( R RH R& t finderR t existing_factoriesR ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt create_manager_for_cls s4
c C s t i | } t } x} | D]u } t | } | d j o | i | i q x2 t D]$ } | | } | d j o PqY qY Wd } | i | q W| i d | S( s\ Return a collection of factories in play or specified for a hierarchy.
Traverses the entire inheritance graph of a cls and returns a collection
of instrumentation factories for those classes. Factories are extracted
from active ClassManagers, if available, otherwise
instrumentation_finders is consulted.
N( R t class_hierarchyR0 R R- Ry R RS t discard( R R t hierarchyt factoriest memberR R\ R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRT s
c C sH | d j o d Sy | i | } Wn t j
o d SX| | Sd S( N( R- RY R^ ( R R R\ ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR s
c C sb | d j o t d n y | i | i | SWn& t j
o t d | i n Xd S( Ns None has no persistent state.s %r is not instrumented( R- R$ RZ R R^ ( R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt state_of s
c C sb | d j o t d n y | i | i | SWn& t j
o t d | i n Xd S( Ns None has no persistent state.s %r is not instrumented( R- R$ R[ R R^ ( R R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt dict_of s
c C sY | | i j oE | i | } | i | i | i | =| i | =| i | =n d S( N( RY R R R RZ R[ ( R RH R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR ! s
( R& R, R8 t weakreft WeakKeyDictionaryRY R t WeakIdentityMappingRZ R[ R. RW R^ RT R Rd Re R ( ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRQ s #
c C sK | t i d j o t t i a t d a n t i a t i a d S( s; Replace global class/object management functions
with either faster or more comprehensive implementations,
based on whether or not extended class instrumentation
has been detected.
This function is called only by InstrumentationRegistry()
and unit tests specific to this behavior.
t nativeR N(
R t symbolR R R R R R> Rd Re ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyRX , s
Ri c C s t | t d S( s; Find user-specified instrumentation management for a class.N( R# t INSTRUMENTATION_MANAGERR- ( R ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt% find_native_user_instrumentation_hookB s c
B s | i } | p t d } e i | d e } | | } e | d | } e | d d } e i } | | U| d } | i | _ | o
| | _
n | S( s> Build an __init__ decorator that triggers ClassManager events.s def __init__(%(apply_pos)s):
new_state = class_manager._new_state_if_none(%(self_arg)s)
if new_state:
return new_state.initialize_instance(%(apply_kw)s)
else:
return original__init__(%(apply_kw)s)
t groupedt im_funct
func_defaultsR N( R RR R t format_argspec_initR. R# R- t localsR| R8 Ro (
RH R} t original__init__t func_bodyt func_varst func_textt funcRo t envR ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyR G s
(M R8 RL R R R Rf t
sqlalchemyR R R R R t sqlalchemy.exceptionst
exceptionsRz R- t _entity_infoR R" Rj R R R R Rt R` R
R. Ra Rk RS t PropComparatorR R/ R R9 RF RG Rj Rv R R t AttributeExtensionR R Ri R R! R, Rn R R; R R< R R= R? RC RB RA RJ RL RK Rb RN RO RP R RQ R> RX R R^ R Rl Rd R ( ( ( s= /usr/lib/python2.6/site-packages/sqlalchemy/orm/attributes.pyt s| 5 =5=K'[N
j