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Editing: exc.cpython-310.pyc
o [�h� � @ s d Z ddlmZ ddlmZ eefZ G dd� dej�Z e Z G dd� dej�Z G dd � d ej �Z G d d � d ej�ZG d d � d ej�ZG dd� de �ZG dd� de �ZG dd� dej �ZG dd� dej �ZG dd� dej �ZG dd� dej �ZG dd� dej �Zd d � Ze�d �d d � �Zd!S )"zSQLAlchemy ORM exceptions.� )�exc)�utilc @ � e Zd ZdZdS )�StaleDataErroraa An 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��__name__� __module__� __qualname__�__doc__� r r �=/usr/local/lib/python3.10/dist-packages/sqlalchemy/orm/exc.pyr � r c @ r )� FlushErrorz0A invalid condition was detected during flush().Nr r r r r r - r r c @ r )� UnmappedErrorz?Base for exceptions that involve expected mappings not present.Nr r r r r r 1 r r c @ r )�ObjectDereferencedErrorzPAn operation cannot complete due to an object being garbage collected. Nr r r r r r 5 r r c @ s e Zd ZdZdZdS )�DetachedInstanceErrorzSAn attempt to access unloaded attributes on a mapped instance that is detached.�bhk3N)r r r r �coder r r r r < s r c @ �, e Zd ZdZe�d�ddd��Zdd� ZdS ) �UnmappedInstanceErrorz;An mapping operation was requested for an unknown instance.�sqlalchemy.orm.baseNc C sx |s4z|� t|�� tt|��}d||f }W n ty3 tt|��}t|t�r1|dt|� 7 }Y nw t�| |� d S )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?)� class_mapper�type�_safe_cls_name�UnmappedClassError�_default_unmapped� isinstancer �__init__)�self�base�obj�msg�namer r r r F s& �� ����z UnmappedInstanceError.__init__c C � | j d | jd ffS �N� �� __class__�args�r r r r � __reduce__[ � z UnmappedInstanceError.__reduce__�N�r r r r r � dependenciesr r* r r r r r C s r c @ s" e Zd ZdZddd�Zdd� ZdS )r z8An mapping operation was requested for an unknown class.Nc C s |st |�}t�| |� d S r, )r r r )r �clsr! r r r r b s zUnmappedClassError.__init__c C r# r$ r& r) r r r r* g r+ z UnmappedClassError.__reduce__r, )r r r r r r* r r r r r _ s r c @ r ) �ObjectDeletedErrora� A 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.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. r Nc C s$ |s d|� |� }tj�| |� d S )NzDInstance '%s' has been deleted, or its row is otherwise not present.)� state_str�sa_exc�InvalidRequestErrorr )r r �stater! r r r r s ��zObjectDeletedError.__init__c C r# r$ r& r) r r r r* � r+ z ObjectDeletedError.__reduce__r, r- r r r r r0 k s r0 c @ r )�UnmappedColumnErrorz5Mapping operation was requested on an unknown column.Nr r r r r r5 � r r5 c @ r )� NoResultFoundz2A database result was required but none was found.Nr r r r r r6 � r r6 c @ r )�MultipleResultsFoundzCA single database result was required but more than one were found.Nr r r r r r7 � r r7 c @ s e Zd ZdZdd� ZdS )�LoaderStrategyExceptionz2A loader strategy for an attribute does not exist.c C sR |d u rt j�| d||f � d S t 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".)r2 r3 r r �clsname_as_plain_name)r �applied_to_property_type�requesting_property� applies_to�actual_strategy_type� strategy_keyr r r r � s" �����z LoaderStrategyException.__init__N)r r r r r r r r r r8 � s r8 c C sP z d� | j| jf�}W |S ty' t| dd �}|d u r$t| �}Y |S Y |S w )N�.r )�joinr r �AttributeError�getattr�repr)r/ �cls_namer r r r � s � ��r r c C sT z| � |�j}W n ty i }Y n ty i }Y nw t|�}|s(d| S d S )NzClass '%s' is not mapped)�manager_of_class�mappers�NO_STATE� TypeErrorr )r r/ rF r" r r r r � s ��r N)r � r r2 r rA �KeyErrorrG �SQLAlchemyErrorr �ConcurrentModificationErrorr r3 r r r r r r0 r5 r6 r7 r8 r r. r r r r r �<module> s* "
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