o ïÅ[hØã@sdZddlmZddlmZeefZ Gdd„dejƒZ e Z Gdd„dejƒZ Gdd „d ej ƒZ Gd d „d ejƒZGd d „d ejƒZGdd„de ƒZGdd„de ƒZGdd„dej ƒZGdd„dej ƒZGdd„dej ƒZGdd„dej ƒZGdd„dej ƒZdd„Ze d¡dd „ƒZd!S)"zSQLAlchemy ORM exceptions.é)Úexc)Úutilc@óeZdZdZdS)ÚStaleDataErroraaAn operation encountered database state that is unaccounted for. Conditions which cause this to happen include: * A flush may have attempted to update or delete rows and an unexpected number of rows were matched during the UPDATE or DELETE statement. Note that when version_id_col is used, rows in UPDATE or DELETE statements are also matched against the current known version identifier. * A mapped object with version_id_col was refreshed, and the version number coming back from the database does not match that of the object itself. * A object is detached from its parent object, however the object was previously attached to a different parent identity which was garbage collected, and a decision cannot be made if the new parent was really the most recent "parent". N©Ú__name__Ú __module__Ú __qualname__Ú__doc__©r r úy/home/ubuntu/experiments/live_experiments/Pythonexperiments/Otree/venv/lib/python3.10/site-packages/sqlalchemy/orm/exc.pyrórc@r)Ú FlushErrorz0A invalid condition was detected during flush().Nrr r r r r-r rc@r)Ú UnmappedErrorz?Base for exceptions that involve expected mappings not present.Nrr r r r r1r rc@r)ÚObjectDereferencedErrorzPAn operation cannot complete due to an object being garbage collected. Nrr r r r r5r rc@seZdZdZdZdS)ÚDetachedInstanceErrorzSAn attempt to access unloaded attributes on a mapped instance that is detached.Zbhk3N)rrr r Úcoder r r r r<src@ó,eZdZdZe d¡ddd„ƒZdd„ZdS) ÚUnmappedInstanceErrorz;An mapping operation was requested for an unknown instance.úsqlalchemy.orm.baseNcCsx|s4z| t|ƒ¡tt|ƒƒ}d||f}Wnty3tt|ƒƒ}t|tƒr1|dt|ƒ7}Ynwt ||¡dS)Nz“Class %r is mapped, but this instance lacks instrumentation. This occurs when the instance is created before sqlalchemy.orm.mapper(%s) was called.z;; was a class (%s) supplied where an instance was required?)Z class_mapperÚtypeÚ_safe_cls_nameÚUnmappedClassErrorÚ_default_unmappedÚ isinstancerÚ__init__)ÚselfÚbaseÚobjÚmsgÚnamer r r rFs& ýÿ   ÿÿ€ýzUnmappedInstanceError.__init__cCó|jd|jdffS©Né©Ú __class__Úargs©rr r r Ú __reduce__[óz UnmappedInstanceError.__reduce__©N©rrr r rÚ dependenciesrr(r r r r rCs   rc@s"eZdZdZddd„Zdd„ZdS)rz8An mapping operation was requested for an unknown class.NcCs|st|ƒ}t ||¡dSr*)rrr)rÚclsrr r r rbszUnmappedClassError.__init__cCr!r"r$r'r r r r(gr)zUnmappedClassError.__reduce__r*)rrr r rr(r r r r r_s  rc@r) ÚObjectDeletedErroraïA refresh operation failed to retrieve the database row corresponding to an object's known primary key identity. A refresh operation proceeds when an expired attribute is accessed on an object, or when :meth:`_query.Query.get` is used to retrieve an object which is, upon retrieval, detected as expired. A SELECT is emitted for the target row based on primary key; if no row is returned, this exception is raised. The true meaning of this exception is simply that no row exists for the primary key identifier associated with a persistent object. The row may have been deleted, or in some cases the primary key updated to a new value, outside of the ORM's management of the target object. rNcCs$|s d| |¡}tj ||¡dS)NzDInstance '%s' has been deleted, or its row is otherwise not present.)Z state_strÚsa_excÚInvalidRequestErrorr)rrÚstaterr r r rs ÿÿzObjectDeletedError.__init__cCr!r"r$r'r r r r(‰r)zObjectDeletedError.__reduce__r*r+r r r r r.ks   r.c@r)ÚUnmappedColumnErrorz5Mapping operation was requested on an unknown column.Nrr r r r r2r r2c@r)Ú NoResultFoundz2A database result was required but none was found.Nrr r r r r3‘r r3c@r)ÚMultipleResultsFoundzCA single database result was required but more than one were found.Nrr r r r r4•r r4c@seZdZdZdd„ZdS)ÚLoaderStrategyExceptionz2A loader strategy for an attribute does not exist.c CsR|durtj |d||f¡dStj |dt |¡|t |¡t |¡f¡dS)NzCan't find strategy %s for %szuCan't apply "%s" strategy to property "%s", which is a "%s"; this loader strategy is intended to be used with a "%s".)r/r0rrZclsname_as_plain_name)rZapplied_to_property_typeZrequesting_propertyZ applies_toZactual_strategy_typeZ strategy_keyr r r rœs"ÿþüýþz LoaderStrategyException.__init__N)rrr r rr r r r r5™s r5cCsPz d |j|jf¡}W|Sty't|ddƒ}|dur$t|ƒ}Y|SY|Sw)NÚ.r)ÚjoinrrÚAttributeErrorÚgetattrÚrepr)r-Úcls_namer r r r¹s ü  þürrcCsTz| |¡j}Wntyi}Yn tyi}Ynwt|ƒ}|s(d|SdS)NzClass '%s' is not mapped)Zmanager_of_classÚmappersÚNO_STATEÚ TypeErrorr)rr-r<r r r r rÃs  ÿÿrN)r Úrr/rr8ÚKeyErrorr=ZSQLAlchemyErrorrZConcurrentModificationErrorrr0rrrrrr.r2r3r4r5rr,rr r r r Ús*   "