/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/
/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm
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util.py448590644editdlrm
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__init__.py95420644editdlrm
__init__.pyc107590644editdlrm
__init__.pyo107590644editdlrm
Edit: /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyc (32294B)
 4]c@sTdZddlZddlmZddlmZddlmZddlmZddlmZdd lm Z dd lm Z dd lm Z dd lm Z dd lm Z ddlmZddlmZddlmZddlmZddlmZejdejfdYZdefdYZdefdYZdS(sDefines instrumentation of instances. This module is usually not directly visible to user applications, but defines a large part of the ORM's interactivity. iNi(tbase(texc(t interfaces(t ATTR_WAS_SET(tINIT_OK(t NEVER_SET(tNO_VALUE(tPASSIVE_NO_INITIALIZE(tPASSIVE_NO_RESULT(t PASSIVE_OFF(tSQL_OK(t PathRegistryi(t inspection(tutilt InstanceStatecBseZdZd0Zd0Zd0ZejZ d1Z d0Z d0Z e Ze Ze Ze Ze ZeZd0Zd2Zd3ZdZd0ZejdZedZedZedZedZ edZ!edZ"eej#d d Z$d Z%eej#d d Z&ed Z'edZ(edZ)ejdZ*ejdZ+ejdZ,edZ-e.e dZ/d0dZ0dZ1dZ2dZ3edZ4dZ5dZ6dZ7dZ8dZ9dZ:d Z;d!Z<e.d"Z=d#Z>e d$Z?d%Z@ed&ZAd'ZBed(ZCed)ZDed*ZEd+ZFe e d,ZGd-ZHd0d.ZIe.d0d/ZJRS(4stracks state information at the instance level. The :class:`.InstanceState` is a key object used by the SQLAlchemy ORM in order to track the state of an object; it is created the moment an object is instantiated, typically as a result of :term:`instrumentation` which SQLAlchemy applies to the ``__init__()`` method of the class. :class:`.InstanceState` is also a semi-public object, available for runtime inspection as to the state of a mapped instance, including information such as its current status within a particular :class:`.Session` and details about data on individual attributes. The public API in order to acquire a :class:`.InstanceState` object is to use the :func:`.inspect` system:: >>> from sqlalchemy import inspect >>> insp = inspect(some_mapped_object) .. seealso:: :ref:`core_inspection_toplevel` cCsF|j|_||_tj||j|_i|_t|_ dS(N( t __class__tclass_tmanagertweakreftreft_cleanuptobjtcommitted_statetsettexpired_attributes(tselfRR((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt__init__Ys    cs&tjtfdjDS(saReturn a namespace representing each attribute on the mapped object, including its current value and history. The returned object is an instance of :class:`.AttributeState`. This object allows inspection of the current data within an attribute as well as attribute history since the last flush. c3s$|]}|t|fVqdS(N(tAttributeState(t.0tkey(R(sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pys us(R tImmutablePropertiestdictR(R((RsG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pytattrshs cCs|jdko|j S(syReturn true if the object is :term:`transient`. .. seealso:: :ref:`session_object_states` N(RtNonet _attached(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt transientxs cCs|jdko|jS(sxReturn true if the object is :term:`pending`. .. seealso:: :ref:`session_object_states` N(RR!R"(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pytpendings cCs|jdk o|jo|jS(sReturn true if the object is :term:`deleted`. An object that is in the deleted state is guaranteed to not be within the :attr:`.Session.identity_map` of its parent :class:`.Session`; however if the session's transaction is rolled back, the object will be restored to the persistent state and the identity map. .. note:: The :attr:`.InstanceState.deleted` attribute refers to a specific state of the object that occurs between the "persistent" and "detached" states; once the object is :term:`detached`, the :attr:`.InstanceState.deleted` attribute **no longer returns True**; in order to detect that a state was deleted, regardless of whether or not the object is associated with a :class:`.Session`, use the :attr:`.InstanceState.was_deleted` accessor. .. versionadded: 1.1 .. seealso:: :ref:`session_object_states` N(RR!R"t_deleted(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pytdeletedscCs|jS(sReturn True if this object is or was previously in the "deleted" state and has not been reverted to persistent. This flag returns True once the object was deleted in flush. When the object is expunged from the session either explicitly or via transaction commit and enters the "detached" state, this flag will continue to report True. .. versionadded:: 1.1 - added a local method form of :func:`.orm.util.was_deleted`. .. seealso:: :attr:`.InstanceState.deleted` - refers to the "deleted" state :func:`.orm.util.was_deleted` - standalone function :ref:`session_object_states` (R%(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt was_deletedscCs |jdk o|jo|j S(s{Return true if the object is :term:`persistent`. An object that is in the persistent state is guaranteed to be within the :attr:`.Session.identity_map` of its parent :class:`.Session`. .. versionchanged:: 1.1 The :attr:`.InstanceState.persistent` accessor no longer returns True for an object that was "deleted" within a flush; use the :attr:`.InstanceState.deleted` accessor to detect this state. This allows the "persistent" state to guarantee membership in the identity map. .. seealso:: :ref:`session_object_states` N(RR!R"R%(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt persistentscCs|jdk o|j S(sxReturn true if the object is :term:`detached`. .. seealso:: :ref:`session_object_states` N(RR!R"(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pytdetacheds ssqlalchemy.orm.sessioncCs|jdk o|j|jkS(N(t session_idR!t _sessions(Rt sessionlib((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyR"scCs5||jkr1t|j|_t|j|sc Cs|jjpd}|jjp!d}|jjp3d}|jjpEd}xX|D]P}|j} |jdk} | ox| } d|_|r|jr|`n| r|r|dk r|j } | dk r||| qqq|dk r|j } | dk r||| qqnz| rY|dk rY|j } | dk r||| qn=| r|dk r|j } | dk r||| qnd|_ qOWdS(N( tdispatchtpersistent_to_detachedR!tdeleted_to_detachedtpending_to_transienttpersistent_to_transientR%RR*Rt _strong_obj( RtstatesR0t to_transientR:R;R<R=tstateR&R$R(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_detach_statesHs<              cCs0|rtj|g|nd|_|_dS(N(RRBR!R*R>(RR0((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_detachqscCs|j|`dS(N(RCR(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_disposews cCsXtdkrdS|j}|dk r>|j||`nd|_|_|`dS(sWeakref callback cleanup. This callable cleans out the state when it is being garbage collected. this _cleanup **assumes** that there are no strong refs to us! Will not work otherwise! N(RR!t_instance_dictt _fast_discardR*R>R(RRt instance_dict((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyR{s     cCsdS(N(R!(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyRscCs-|j}|dk r%tj|SiSdS(sReturn the instance dict used by the object. Under normal circumstances, this is always synonymous with the ``__dict__`` attribute of the mapped object, unless an alternative instrumentation system has been configured. In the case that the actual object has been garbage collected, this accessor returns a blank dictionary. N(RR!RRG(Rto((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyRs   cOs|d|d|d}}}|j}|jj|||y|j|d|SWn0tj|jj|||WdQXnXdS(Niii(RR9tinitt original_initR t safe_reraiset init_failure(tmixedtkwargsRtinstancetargsR((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_initialize_instances   cCs |j|jj||j|S(N(Rtimplt get_historyR(RRtpassive((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyRSscCs|j|jS(N(RRR(RR((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pytget_implscCs-||jkr"t|j|s RR5tmodifiedtexpiredt callablesRR4t load_optionsRRtinfot load_pathR( RR5RZR[R\RR4R]RRR^(RtupdateR_t serializeRt _serialize(Rt state_dict((RsG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt __getstate__s$   cCs||d}|dk r=tj||j|_|j|_nd|_|d|_|jdi|_|jdi|_ |jdi|_ |jdt |_ |jdt |_ d|kr|jj|dnd |krv|d |_y|d |_Wqtk rrt|_xKt|jD]6}|j||kr5|jj||j|=q5q5WqXn(d |kr|d |_n t|_|jjgdD]"}||kr|||f^q|jr?y|jd |_Wq?tk r;t|jd kst|jd|_d|_q?Xnd|krdtj|d|_n|d|||dS(NRORRR5R4RZR[R^R\RRR]iR_R(RR](N(R!RRRRRRtgetRR5R4tFalseRZR[R^R`R\RtKeyErrorRtlisttaddRXRtidentity_tokent IndexErrortlentAssertionErrorR t deserializeR_(RRctinstRY((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt __setstate__sP             #   cCs~|j|d}|dk rK|j|jjrK|j|jj|n|jj||jrz|jj|dndS(sKRemove the given attribute and any callables associated with it.N( tpopR!RRRt collectiont_invalidate_collectionRtdiscardR\(Rtdict_Rtold((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_resets  cCs(d|jkr$t|j|_ndS(NR\(RXRR\(Rtfrom_((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_copy_callables%scsD|jjr.fd}nfd}|S(NcsZd|jkri|_n|jd}|dk rIj|n|jas(tTrueR[RZRtRtclearRfR!R>RXRR`Rt_scalar_loader_implstexpire_missingRR\t intersectiont_collection_impl_keysRqt _sa_adaptert invalidatedR-t _all_key_setR9texpire(RRut modified_setRRRYRrR((RusG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_expire?s4         (    c CsI|jjdd}|j}x|D]}|j|j}|jr|re|js%||kreq%n|jj ||r||kr||=qn|j |t }|j r|t k r|j |n|jr||jkr|t k r||j|s(RRR(R((RsG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pytunloaded_expirables  cs#jjfdjDS(Nc3s(|]}j|jjr|VqdS(N(RRRR(RR(R(sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pys s(RRR(R((RsG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_unloaded_non_objects  cCsdS(N(R!(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyREscCs|r|jsdS|rA|j|krAtjd|jn|j|jksY|r|r|tkr|j|kr||j}qn|dttfkr|j|}qn||j|jRZRREt _modifiedRiRtorm_exctObjectDereferencedErrorRRtstate_class_str(RRuRtpreviousRrt is_userlandRGRo((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_modified_events:  "     cCsx!|D]}|jj|dqWt|_|jjt|j||j rx6t|j j|j|D]}|j |=qwWndS(s8Commit attributes. This is used by a partial-attribute load operation to mark committed those attributes which were refreshed from the database. Attributes marked as "expired" can potentially remain "expired" after this step if a value was not populated in state.dict. N( RRqR!RfR[Rtdifference_updateRRR\(RRuRR((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt_commits    %cCs|j||fg|dS(sScommit all attributes unconditionally. This is used after a flush() or a full load/refresh to remove all pending state from the instance. - all attributes are marked as "committed" - the "strong dirty reference" is removed - the "modified" flag is set to False - any "expired" markers for scalar attributes loaded are removed. - lazy load callables for objects / collections *stay* Attributes marked as "expired" can potentially remain "expired" after this step if a value was not populated in state.dict. N(t_commit_all_states(RRuRG((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt _commit_all scCsx|D]\}}|j}|jjd|kr?|d=n|jj||rq|jrq|jj|nt|_|_ d|_ qWdS(s.Mass / highly inlined version of commit_all().R5N( RXRRRRRZRRtRfR[R!R>(Rtiter_RGRARuRc((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyR2s    N((((Kt__name__t __module__t__doc__R!R*RtrunidR t EMPTY_SETR]R_t insert_orderR>RfRZR[R%t _load_pendingt_orphaned_outside_of_sessionRt is_instanceRjR-R\RRtmemoized_propertyR tpropertyR#R$R&R'R(R)t dependenciesR"R.R0R1R2R3R4R5R6R8t classmethodRBRCRDRRRRQRSRURWRdRpRwRyR~RRRRRRRRRERRRR(((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyR"s       (         :  *    .  RcBsMeZdZdZedZedZedZdZRS(sProvide an inspection interface corresponding to a particular attribute on a particular mapped object. The :class:`.AttributeState` object is accessed via the :attr:`.InstanceState.attrs` collection of a particular :class:`.InstanceState`:: from sqlalchemy import inspect insp = inspect(some_mapped_object) attr_state = insp.attrs.some_attribute cCs||_||_dS(N(RAR(RRAR((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyRVs cCs|jjj|jtS(sThe current value of this attribute as loaded from the database. If the value has not been loaded, or is otherwise not present in the object's dictionary, returns NO_VALUE. (RARReRR(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt loaded_valueZscCs,|jj|jj|jj|jjS(sReturn the value of this attribute. This operation is equivalent to accessing the object's attribute directly or via ``getattr()``, and will fire off any pending loader callables if needed. (RARRt__get__RR(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pytvalueds cCs|jj|jtS(sXReturn the current **pre-flush** change history for this attribute, via the :class:`.History` interface. This method will **not** emit loader callables if the value of the attribute is unloaded. .. note:: The attribute history system tracks changes on a **per flush basis**. Each time the :class:`.Session` is flushed, the history of each attribute is reset to empty. The :class:`.Session` by default autoflushes each time a :class:`.Query` is invoked. For options on how to control this, see :ref:`session_flushing`. .. seealso:: :meth:`.AttributeState.load_history` - retrieve history using loader callables if the value is not locally present. :func:`.attributes.get_history` - underlying function (RARSRR(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pythistoryqscCs|jj|jttAS(sReturn the current **pre-flush** change history for this attribute, via the :class:`.History` interface. This method **will** emit loader callables if the value of the attribute is unloaded. .. note:: The attribute history system tracks changes on a **per flush basis**. Each time the :class:`.Session` is flushed, the history of each attribute is reset to empty. The :class:`.Session` by default autoflushes each time a :class:`.Query` is invoked. For options on how to control this, see :ref:`session_flushing`. .. seealso:: :attr:`.AttributeState.history` :func:`.attributes.get_history` - underlying function .. versionadded:: 0.9.0 (RARSRR R(R((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyt load_historys( RRRRRRRRR(((sG/opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/orm/state.pyRGs     RVcBs)eZdZdZdZdZRS(sA writable placeholder for an unloaded collection. Stores items appended to and removed from a collection that has not yet been loaded. 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