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m Z d d l mZ d d l mZ er°ddlmZ ddlmZ ddlmZ e dedZeefZG dd de jZeZG dd de jZ G dd de j Z G dd de jZ G d d d e jZ G d d d e Z!G d d! d!e Z"G d"d# d#e j Z#G d$d% d%e j Z$G d&d' d'e j Z%d(d)d*d+d,Z&e 'd-¡d(d.d*d/d0Z(d1S )2zSQLAlchemy ORM exceptions.é )Ú annotations)ÚAny)ÚOptional)ÚTuple)ÚType)Ú TYPE_CHECKING)ÚTypeVaré )Úexc)Úutil)ÚMultipleResultsFound)Ú NoResultFoundé )ÚLoaderStrategy)ÚMapperProperty)Ú InstanceStateÚ_T)Úboundc @ s e Zd ZdZdS )ÚStaleDataErroraa An operation encountered database state that is unaccounted for.
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Conditions which cause this to happen include:
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* A flush may have attempted to update or delete rows
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and an unexpected number of rows were matched during
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the UPDATE or DELETE statement. Note that when
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version_id_col is used, rows in UPDATE or DELETE statements
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are also matched against the current known version
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identifier.
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* A mapped object with version_id_col was refreshed,
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and the version number coming back from the database does
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not match that of the object itself.
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* A object is detached from its parent object, however
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the object was previously attached to a different parent
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identity which was garbage collected, and a decision
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cannot be made if the new parent was really the most
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recent "parent".
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N©Ú__name__Ú
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__module__Ú __qualname__Ú__doc__© r r úId:\z\workplace\vscode\pyvenv\venv\Lib\site-packages\sqlalchemy/orm/exc.pyr # s r c @ s e Zd ZdZdS )Ú
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FlushErrorz0A invalid condition was detected during flush().Nr r r r r r ? s r c @ s e Zd ZdZdS )Ú UnmappedErrorz?Base for exceptions that involve expected mappings not present.Nr r r r r r C s r c @ s e Zd ZdZdS )ÚObjectDereferencedErrorzPAn operation cannot complete due to an object being garbage
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collected.
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Nr r r r r r G s r c @ s e Zd ZdZdZdS )ÚDetachedInstanceErrorzSAn attempt to access unloaded attributes on a
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mapped instance that is detached.Zbhk3N)r r r r Úcoder r r r r N s r c @ s: e Zd ZdZe d¡d dddddZd d
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d d ZdS )ÚUnmappedInstanceErrorz;An mapping operation was requested for an unknown instance.úsqlalchemy.orm.baseNÚobjectú Optional[str])ÚobjÚmsgc C s t jj}|szz*| t|¡ tt|}d||f }W nB tk
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rx dtt| d}t|trt|dt| 7 }Y nX t | |¡ d S )NzClass %r is mapped, but this instance lacks instrumentation. This occurs when the instance is created before sqlalchemy.orm.mapper(%s) was called.úClass 'ú' is not mappedz;; was a class (%s) supplied where an instance was required?)
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r Ú preloadedÚorm_baseZ class_mapperÚtypeÚ_safe_cls_nameÚUnmappedClassErrorÚ
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isinstancer Ú__init__)Úselfr% r& ÚbaseÚnamer r r r/ X s$ ýÿ
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z UnmappedInstanceError.__init__r ©Úreturnc C s | j d | jd ffS ©Nr ©Ú __class__Úargs©r0 r r r Ú
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__reduce__o s z UnmappedInstanceError.__reduce__)N©r r r r r Úpreload_moduler/ r: r r r r r! U s r! c @ s0 e Zd ZdZd dddddZdd d
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d ZdS ) r- z8An mapping operation was requested for an unknown class.NzType[_T]r$ )Úclsr& c C s |s t |}t | |¡ d S )N)Ú_default_unmappedr r/ )r0 r= r& r r r r/ v s zUnmappedClassError.__init__r r3 c C s | j d | jd ffS r5 r6 r9 r r r r: { s z UnmappedClassError.__reduce__)N)r r r r r/ r: r r r r r- s s r- c @ s: e Zd ZdZe d¡d dddddZd d
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d d ZdS )ÚObjectDeletedErroraï A refresh operation failed to retrieve the database
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row corresponding to an object's known primary key identity.
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|
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.
|
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r" NzInstanceState[Any]r$ )Ústater& c C s, t jj}|sd| |¡ }tj | |¡ d S )NzDInstance '%s' has been deleted, or its row is otherwise not present.)r r) r* Z state_strÚsa_excÚInvalidRequestErrorr/ )r0 r@ r& r1 r r r r/ s ÿÿzObjectDeletedError.__init__r r3 c C s | j d | jd ffS r5 r6 r9 r r r r: s z ObjectDeletedError.__reduce__)Nr; r r r r r? s r? c @ s e Zd ZdZdS )ÚUnmappedColumnErrorz5Mapping operation was requested on an unknown column.Nr r r r r rC £ s rC c @ s& e Zd ZdZdddddddd Zd
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S ) ÚLoaderStrategyExceptionz2A loader strategy for an attribute does not exist.ú Type[Any]zMapperProperty[Any]z#Optional[Type[MapperProperty[Any]]]z Optional[Type[LoaderStrategy]]zTuple[Any, ...])Úapplied_to_property_typeÚrequesting_propertyÚ
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applies_toÚactual_strategy_typeÚ strategy_keyc
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C s\ |d kr t j | d||f ¡ n8|d k s,tt j | dt |¡|t |¡t |¡f ¡ d S )Nz Can'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".)rA rB r/ ÚAssertionErrorr Zclsname_as_plain_name)r0 rF rG rH rI rJ r r r r/ ª s$ ÿþ üýþz LoaderStrategyException.__init__N)r r r r r/ r r r r rD § s rD rE Ústr)r= r4 c C sL zd | j| jf¡}W n0 tk
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rF t| dd }|d krBt| }Y nX |S )NÚ.r )Újoinr r ÚAttributeErrorÚgetattrÚrepr)r= Zcls_namer r r r, È s r, r" r$ c C sZ t jj}z| | ¡j}W n ttft k
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