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o �h < � @ s� d dl mZ d dlmZmZ d dlmZ d dlmZm Z m Z m Z d dl m Z d dlmZ d dlmZ d dlmZ d d lmZ d d lmZ g d �ZG d d � d �ZG dd� de�ZG dd� de�Z G dd� de�Z dS )� )�Enum)� FieldError�ValidationError)� connections)�Exists�ExpressionList�F�OrderBy)�IndexExpression)�Exact)�Q)�Query)�DEFAULT_DB_ALIAS)� gettext_lazy)�BaseConstraint�CheckConstraint� Deferrable�UniqueConstraintc @ sl e Zd Zed�ZdZddd�Zedd� �Zdd� Z d d � Z d d � Z de fd d�Z dd� Zdd� Zdd� ZdS )r u& Constraint “%(name)s” is violated.Nc C s$ || _ |d ur || _d S | j| _d S �N)�name�violation_error_message� default_violation_error_message)�selfr r � r �R/usr/local/CyberPanel/lib/python3.10/site-packages/django/db/models/constraints.py�__init__ s zBaseConstraint.__init__c C s dS )NFr �r r r r �contains_expressions s z#BaseConstraint.contains_expressionsc C � t d���Nz.This method must be implemented by a subclass.��NotImplementedError�r �model� schema_editorr r r �constraint_sql � z BaseConstraint.constraint_sqlc C r r r r" r r r � create_sql" r& zBaseConstraint.create_sqlc C r r r r" r r r � remove_sql% r& zBaseConstraint.remove_sqlc C r r r )r r# �instance�exclude�usingr r r �validate( r& zBaseConstraint.validatec C s | j d| ji S )Nr )r r r r r r �get_violation_error_message+ s z*BaseConstraint.get_violation_error_messagec C sT d| j j| j jf }|�dd�}d| ji}| jd ur%| j| jkr%| j|d< |d|fS )Nz%s.%sz django.db.models.constraintszdjango.db.modelsr r r )� __class__� __module__�__name__�replacer r r )r �path�kwargsr r r � deconstruct. s zBaseConstraint.deconstructc C s | � � \}}}| j|i |��S r )r4 r. )r �_�argsr3 r r r �clone9 s zBaseConstraint.cloner )r0 r/ � __qualname__r5 r r r �propertyr r% r' r( r r, r- r4 r7 r r r r r s r c sp e Zd Zdd�� fdd� Zdd� Zdd� Zd d � Zd d � Zdefd d�Z dd� Z � fdd�Z � fdd�Z � Z S )r N�r c s. || _ t|dd�s td��t� j||d� d S )N� conditionalFzACheckConstraint.check must be a Q instance or boolean expression.r: )�check�getattr� TypeError�superr )r r< r r �r. r r r ? s �zCheckConstraint.__init__c sR t |dd�}|�| j�}|j� jd�}|�|� j�\}}|t� fdd�|D �� S )NF�r# � alias_cols�� connectionc 3 � � | ]}� � |�V qd S r �� quote_value��.0�p�r$ r r � <genexpr>L � � z1CheckConstraint._get_check_sql.<locals>.<genexpr>)r � build_wherer< � get_compilerrD �as_sql�tuple�r r# r$ �query�where�compiler�sql�paramsr rK r �_get_check_sqlG s z CheckConstraint._get_check_sqlc C s | � ||�}|�| j|�S r )rX � _check_sqlr �r r# r$ r< r r r r% N s z CheckConstraint.constraint_sqlc C s | � ||�}|�|| j|�S r )rX �_create_check_sqlr rZ r r r r' R s zCheckConstraint.create_sqlc C s |� || j�S r )�_delete_check_sqlr r" r r r r( V s zCheckConstraint.remove_sqlc C sL |j |j|d�}zt| j�j||d�st| �� ��W d S ty% Y d S w )N��metar* �r+ )�_get_field_value_map�_metar r< r r- r )r r# r) r* r+ �againstr r r r, Y s � �zCheckConstraint.validatec C s d| j j| jt| j�f S )Nz<%s: check=%s name=%s>)r. r8 r< �reprr r r r r �__repr__a s �zCheckConstraint.__repr__c s: t |t�r| j|jko| j|jko| j|jkS t� �|�S r )� isinstancer r r< r r? �__eq__�r �otherr@ r r rf h s � � zCheckConstraint.__eq__c s$ t � �� \}}}| j|d< |||fS )Nr< )r? r4 r< �r r2 r6 r3 r@ r r r4 q s zCheckConstraint.deconstruct)r0 r/ r8 r rX r% r' r( r r, rd rf r4 � __classcell__r r r@ r r > s r c @ s e Zd ZdZdZdd� ZdS )r �deferred� immediatec C s | j j� d| j� �S )N�.)r. r8 �_name_r r r r rd | s zDeferrable.__repr__N)r0 r/ r8 �DEFERRED� IMMEDIATErd r r r r r w s r c s� e Zd Zdddddddd�� fdd� Zedd� �Zdd � Zd d � Zd d � Zdd� Z dd� Z dd� Z � fdd�Z � fdd�Z defdd�Z� ZS )r r N)�fieldsr � condition� deferrable�include� opclassesr c sT |st d��|s|st d��|r|rt d��t|td �tf�s#t d��|r+|r+t d��|r3|r3t d��|r;|r;t d��|rC|rCt d��|rK|rKt d ��t|td �tf�sXt d ��t|td �ttf�sft d ��t|ttf�sqt d ��|rt|�t|�krt d ��t|�| _|| _ || _ |r�t|�nd| _ || _ tdd� |D ��| _ t� j||d� d S )Nz"A unique constraint must be named.zKAt least one field or expression is required to define a unique constraint.z?UniqueConstraint.fields and expressions are mutually exclusive.z0UniqueConstraint.condition must be a Q instance.z4UniqueConstraint with conditions cannot be deferred.z8UniqueConstraint with include fields cannot be deferred.z3UniqueConstraint with opclasses cannot be deferred.z5UniqueConstraint with expressions cannot be deferred.zrUniqueConstraint.opclasses cannot be used with expressions. Use django.contrib.postgres.indexes.OpClass() instead.z:UniqueConstraint.deferrable must be a Deferrable instance.z1UniqueConstraint.include must be a list or tuple.z3UniqueConstraint.opclasses must be a list or tuple.z]UniqueConstraint.fields and UniqueConstraint.opclasses must have the same number of elements.r c s s& � | ]}t |t�r t|�n|V qd S r )re �strr )rI � expressionr r r rL � s � � �z,UniqueConstraint.__init__.<locals>.<genexpr>r: )� ValueErrorre �typer r �listrQ �lenrq rr rs rt ru � expressionsr? r ) r rq r rr rs rt ru r r| r@ r r r � sZ ����� �zUniqueConstraint.__init__c C s t | j�S r )�boolr| r r r r r � s z%UniqueConstraint.contains_expressionsc s` | j d u rd S t|dd�}|�| j �}|j� jd�}|�|� j�\}}|t� fdd�|D �� S )NFrA rC c 3 rE r rF rH rK r r rL � rM z6UniqueConstraint._get_condition_sql.<locals>.<genexpr>)rr r rN rO rD rP rQ rR r rK r �_get_condition_sql� s z#UniqueConstraint._get_condition_sqlc C sN | j sd S g }| j D ]}t|�}|�|j� |�|� q t|� �t|dd��S )NF)rB )r| r �set_wrapper_classesrD �appendr �resolve_expressionr )r r# r$ �index_expressionsrw �index_expressionr r r �_get_index_expressions� s �z'UniqueConstraint._get_index_expressionsc �` � fdd�| j D �}� fdd�| jD �}| �� |�}| �� |�}|j� || j|| j|| j|d�S )Nc � g | ]}� j �|��qS r �ra � get_field�rI � field_name�r# r r � <listcomp>� � z3UniqueConstraint.constraint_sql.<locals>.<listcomp>c � g | ] }� j �|�j�qS r �ra r� �columnr� r� r r r� � � ��rr rs rt ru r| )rq rt r~ r� � _unique_sqlr rs ru �r r# r$ rq rt rr r| r r� r r% � � � �z UniqueConstraint.constraint_sqlc r� )Nc r� r r� r� r� r r r� � r� z/UniqueConstraint.create_sql.<locals>.<listcomp>c r� r r� r� r� r r r� � r� r� )rq rt r~ r� �_create_unique_sqlr rs ru r� r r� r r' � r� zUniqueConstraint.create_sqlc sJ | � � |�}� fdd�| jD �}| �� |�}|j� | j|| j|| j|d�S )Nc r� r r� r� r� r r r� � r� z/UniqueConstraint.remove_sql.<locals>.<listcomp>r� )r~ rt r� �_delete_unique_sqlr rs ru )r r# r$ rr rt r| r r� r r( � s � �zUniqueConstraint.remove_sqlc C s� d| j j| js dndt| j� | jsdndt| j� dt| j� | jd u r'dnd| j | jd u r2dnd| j | js;dndt| j� | j sHdf S d t| j � f S ) Nz<%s:%s%s%s%s%s%s%s>� z fields=%sz expressions=%sz name=%sz condition=%sz deferrable=%rz include=%sz opclasses=%s) r. r8 rq rc r| r rr rs rt ru r r r r rd s � �zUniqueConstraint.__repr__c sv t |t�r5| j|jko4| j|jko4| j|jko4| j|jko4| j|jko4| j|jko4| j|jko4| j |j kS t � � |�S r ) re r r rq rr rs rt ru r| r r? rf rg r@ r r rf s" � � � � � � � zUniqueConstraint.__eq__c sl t � �� \}}}| jr| j|d< | jr| j|d< | jr | j|d< | jr(| j|d< | jr0| j|d< || j|fS )Nrq rr rs rt ru )r? r4 rq rr rs rt ru r| ri r@ r r r4 % s z UniqueConstraint.deconstructc C s* |j �|�}| jrEi }| jD ]-}|r||v r d S |j�|�}t||j�} | d u s3| dkr6t| jj r6 d S | ||j < q|j di |��}n_|ru| j D ]*} t | d�rg| �� D ]} t| t�re| j |v re d S qUqJt| t�rt| j |v rt d S qJdd� |j|j|d��� D �} g } | j D ]} t| t�r�| j} | �t| | �| ��� q�|j | � }|�|j�}|jjs�|d ur�|j|d�}| j s�|� � r�| j r�t | � � ��|� � D ]\}}|D ]}|| u r�t |�!|| j���q�q�d S d S |j|j|d�}z| j t"|� | j ��@ j#||d��rt | � � ��W d S t$�y Y d S w ) Nr� �flattenc S s i | ] \}}t |�|�qS r )r )rI �field�valuer r r � <dictcomp>O s ��z-UniqueConstraint.validate.<locals>.<dictcomp>r] )�pkr_ r )%�_default_managerr+ rq ra r� r= �attnamer �features�!interprets_empty_strings_as_nullsr �filterr| �hasattrr� re r r` �itemsr rw r� r �replace_expressions� _get_pk_val�_state�addingr* rr �existsr r- �get_constraints�unique_error_messager r< r )r r# r) r* r+ �queryset� lookup_kwargsr� r� � lookup_valuerw �expr� replacementsr| �model_class_pk� constraints� constraintrb r r r r, 3 s� � ����� ����� ��zUniqueConstraint.validate)r0 r/ r8 r r9 r r~ r� r% r' r( rd rf r4 r r, rj r r r@ r r � s( �= r N) �enumr �django.core.exceptionsr r � django.dbr � django.db.models.expressionsr r r r �django.db.models.indexesr �django.db.models.lookupsr � django.db.models.query_utilsr �django.db.models.sql.queryr �django.db.utilsr �django.utils.translationr r5 �__all__r r r r r r r r �<module> s .9
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