a
    [g                     @  s  d Z ddlmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlm	Z	 d	d
l
mZ ddlmZ ddlm
Z
 ddlmZ ddlmZ erd	dlmZ d	dlmZ d	dlmZ e	dedZeefZG dd dejZeZG dd dejZG dd dejZG dd dejZ G dd dejZ!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+d0d1Z)d2S )3zSQLAlchemy ORM exceptions.    )annotations)Any)Optional)Tuple)Type)TYPE_CHECKING)TypeVar   )_mapper_property_as_plain_name   )exc)util)MultipleResultsFound)NoResultFound)LoaderStrategy)MapperProperty)InstanceState_T)boundc                   @  s   e Zd ZdZdS )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   `/var/www/html/cobodadashboardai.evdpl.com/venv/lib/python3.9/site-packages/sqlalchemy/orm/exc.pyr   $   s   r   c                   @  s   e Zd ZdZdS )
FlushErrorz0A invalid condition was detected during flush().Nr   r   r   r   r   r   @   s   r   c                   @  s   e Zd ZdZdS )UnmappedErrorz?Base for exceptions that involve expected mappings not present.Nr   r   r   r   r   r   D   s   r   c                   @  s   e Zd ZdZdS )ObjectDereferencedErrorzPAn operation cannot complete due to an object being garbage
    collected.

    Nr   r   r   r   r   r   H   s   r   c                   @  s   e Zd ZdZdZdS )DetachedInstanceErrorzSAn attempt to access unloaded attributes on a
    mapped instance that is detached.Zbhk3N)r   r   r   r   coder   r   r   r   r    O   s   r    c                   @  s:   e Zd ZdZedddddddZd	d
ddZdS )UnmappedInstanceErrorz;An mapping operation was requested for an unknown instance.sqlalchemy.orm.baseNobjectOptional[str])objmsgc                 C  s   t jj}|sxz*|t| tt|}d||f }W n@ tyv   dtt| d}t|trr|dt| 7 }Y n0 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.Class '' is not mappedz;; was a class (%s) supplied where an instance was required?)
r   	preloadedorm_baseZclass_mappertype_safe_cls_nameUnmappedClassError
isinstancer   __init__)selfr&   r'   basenamer   r   r   r0   Y   s$    

zUnmappedInstanceError.__init__r   returnc                 C  s   | j d | jd ffS Nr   	__class__argsr1   r   r   r   
__reduce__p   s    z UnmappedInstanceError.__reduce__)Nr   r   r   r   r   preload_moduler0   r;   r   r   r   r   r"   V   s   r"   c                   @  s0   e Zd ZdZddddddZdd	d
dZdS )r.   z8An mapping operation was requested for an unknown class.NzType[_T]r%   )clsr'   c                 C  s   |st |}t| | d S )N)_default_unmappedr   r0   )r1   r>   r'   r   r   r   r0   w   s    zUnmappedClassError.__init__r   r4   c                 C  s   | j d | jd ffS r6   r7   r:   r   r   r   r;   |   s    zUnmappedClassError.__reduce__)N)r   r   r   r   r0   r;   r   r   r   r   r.   t   s   r.   c                   @  s:   e Zd ZdZedddddddZd	d
ddZdS )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.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#   NzInstanceState[Any]r%   )stater'   c                 C  s,   t jj}|sd|| }tj| | d S )NzDInstance '%s' has been deleted, or its row is otherwise not present.)r   r*   r+   	state_strsa_excInvalidRequestErrorr0   )r1   rA   r'   r2   r   r   r   r0      s    zObjectDeletedError.__init__r   r4   c                 C  s   | j d | jd ffS r6   r7   r:   r   r   r   r;      s    zObjectDeletedError.__reduce__)Nr<   r   r   r   r   r@      s   r@   c                   @  s   e Zd ZdZdS )UnmappedColumnErrorz5Mapping operation was requested on an unknown column.Nr   r   r   r   r   rE      s   rE   c                   @  s&   e Zd ZdZdddddddd	Zd
S )LoaderStrategyExceptionz2A loader strategy for an attribute does not exist.	Type[Any]zMapperProperty[Any]z#Optional[Type[MapperProperty[Any]]]zOptional[Type[LoaderStrategy]]zTuple[Any, ...])applied_to_property_typerequesting_property
applies_toactual_strategy_typestrategy_keyc              	   C  sX   |d u r t j| d||f  n4|d us,J t j| dt||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".)rC   rD   r0   r   Zclsname_as_plain_namer
   )r1   rH   rI   rJ   rK   rL   r   r   r   r0      s$    z LoaderStrategyException.__init__N)r   r   r   r   r0   r   r   r   r   rF      s   rF   rG   str)r>   r5   c                 C  sJ   zd | j| jf}W n. tyD   t| dd }|d u r@t| }Y n0 |S )N.r   )joinr   r   AttributeErrorgetattrrepr)r>   cls_namer   r   r   r-      s    r-   r#   r%   c              	   C  sX   t jj}z|| j}W n ttft y6   i }Y n0 t| }|sPd| dS d S d S )Nr(   r)   )	r   r*   r+   Zmanager_of_classmappersr.   	TypeErrorNO_STATEr-   )r>   r2   rT   r3   r   r   r   r?      s    

r?   N)*r   
__future__r   typingr   r   r   r   r   r   r   r
    r   rC   r   r   Z
interfacesr   r   rA   r   r   rP   KeyErrorrV   ZSQLAlchemyErrorr   ZConcurrentModificationErrorr   rD   r   r   r    r"   r.   r@   rE   rF   r-   r=   r?   r   r   r   r   <module>   s@   $!