o
    ˜¨Êh€:  ã                   @   sÎ   d dl mZ d dlmZmZ d dlmZ d dlmZm	Z	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 g d¢ZG dd„ dƒZG dd„ deƒZG dd„ deƒZG dd„ deƒZdS )é    )ÚEnum)Ú
FieldErrorÚValidationError)Úconnections)ÚExistsÚExpressionListÚF)ÚIndexExpression)ÚExact)ÚQ)ÚQuery)ÚDEFAULT_DB_ALIAS)Úgettext_lazy)ÚBaseConstraintÚCheckConstraintÚ
DeferrableÚUniqueConstraintc                   @   sl   e Zd ZedƒZdZddd„Zedd„ ƒZdd„ Z	d	d
„ Z
dd„ Zdefdd„Zdd„ Zdd„ Zdd„ ZdS )r   u&   Constraint â€œ%(name)sâ€� is violated.Nc                 C   s$   || _ |d ur|| _d S | j| _d S ©N)ÚnameÚviolation_error_messageÚdefault_violation_error_message)Úselfr   r   © r   úN/var/www/html/env/lib/python3.10/site-packages/django/db/models/constraints.pyÚ__init__   s   
zBaseConstraint.__init__c                 C   s   dS )NFr   ©r   r   r   r   Úcontains_expressions   s   z#BaseConstraint.contains_expressionsc                 C   ó   t dƒ‚©Nz.This method must be implemented by a subclass.©ÚNotImplementedError©r   ÚmodelÚschema_editorr   r   r   Úconstraint_sql   ó   zBaseConstraint.constraint_sqlc                 C   r   r   r   r!   r   r   r   Ú
create_sql"   r%   zBaseConstraint.create_sqlc                 C   r   r   r   r!   r   r   r   Ú
remove_sql%   r%   zBaseConstraint.remove_sqlc                 C   r   r   r   )r   r"   ÚinstanceÚexcludeÚusingr   r   r   Úvalidate(   r%   zBaseConstraint.validatec                 C   s   | j d| ji S )Nr   )r   r   r   r   r   r   Úget_violation_error_message+   s   z*BaseConstraint.get_violation_error_messagec                 C   sT   d| j j| j jf }| dd¡}d| ji}| jd ur%| j| jkr%| j|d< |d|fS )Nz%s.%szdjango.db.models.constraintszdjango.db.modelsr   r   r   )Ú	__class__Ú
__module__Ú__name__Úreplacer   r   r   )r   ÚpathÚkwargsr   r   r   Údeconstruct.   s   



zBaseConstraint.deconstructc                 C   s   |   ¡ \}}}| j|i |¤ŽS r   )r3   r-   )r   Ú_Úargsr2   r   r   r   Úclone9   s   zBaseConstraint.cloner   )r/   r.   Ú__qualname__r4   r   r   r   Úpropertyr   r$   r&   r'   r   r+   r,   r3   r6   r   r   r   r   r      s    

r   c                       sp   e Zd Zddœ‡ fdd„
Zdd„ Zdd„ Zd	d
„ Zdd„ Zdefdd„Z	dd„ Z
‡ fdd„Z‡ fdd„Z‡  ZS )r   N©r   c                   s.   || _ t|ddƒstdƒ‚tƒ j||d� d S )NÚconditionalFzACheckConstraint.check must be a Q instance or boolean expression.r9   )ÚcheckÚgetattrÚ	TypeErrorÚsuperr   )r   r;   r   r   ©r-   r   r   r   ?   s   ÿzCheckConstraint.__init__c                    sR   t |dd�}| | j¡}|jˆ jd�}| |ˆ j¡\}}|t‡ fdd„|D ƒƒ S )NF©r"   Ú
alias_cols©Ú
connectionc                 3   ó   � | ]}ˆ   |¡V  qd S r   ©Úquote_value©Ú.0Úp©r#   r   r   Ú	<genexpr>L   ó   € z1CheckConstraint._get_check_sql.<locals>.<genexpr>)r   Úbuild_wherer;   Úget_compilerrC   Úas_sqlÚtuple©r   r"   r#   ÚqueryÚwhereÚcompilerÚsqlÚparamsr   rJ   r   Ú_get_check_sqlG   s
   zCheckConstraint._get_check_sqlc                 C   s   |   ||¡}| | j|¡S r   )rW   Ú
_check_sqlr   ©r   r"   r#   r;   r   r   r   r$   N   s   zCheckConstraint.constraint_sqlc                 C   s   |   ||¡}| || j|¡S r   )rW   Ú_create_check_sqlr   rY   r   r   r   r&   R   s   zCheckConstraint.create_sqlc                 C   s   |  || j¡S r   )Ú_delete_check_sqlr   r!   r   r   r   r'   V   s   zCheckConstraint.remove_sqlc                 C   sL   |j |j|d�}zt| jƒj||d�st|  ¡ ƒ‚W d S  ty%   Y d S w )N©Úmetar)   ©r*   )Ú_get_field_value_mapÚ_metar   r;   r   r,   r   )r   r"   r(   r)   r*   Úagainstr   r   r   r+   Y   s   ÿÿzCheckConstraint.validatec                 C   s   d| j j| jt| jƒf S )Nz<%s: check=%s name=%s>)r-   r7   r;   Úreprr   r   r   r   r   Ú__repr__a   s
   ýzCheckConstraint.__repr__c                    s:   t |tƒr| j|jko| j|jko| j|jkS tƒ  |¡S r   )Ú
isinstancer   r   r;   r   r>   Ú__eq__©r   Úotherr?   r   r   re   h   s   

ÿ
ýzCheckConstraint.__eq__c                    s$   t ƒ  ¡ \}}}| j|d< |||fS )Nr;   )r>   r3   r;   ©r   r1   r5   r2   r?   r   r   r3   q   s   

zCheckConstraint.deconstruct)r/   r.   r7   r   rW   r$   r&   r'   r   r+   rc   re   r3   Ú__classcell__r   r   r?   r   r   >   s    	r   c                   @   s   e Zd ZdZdZdd„ ZdS )r   ÚdeferredÚ	immediatec                 C   s   | j j› d| j› �S )NÚ.)r-   r7   Ú_name_r   r   r   r   rc   |   s   zDeferrable.__repr__N)r/   r.   r7   ÚDEFERREDÚ	IMMEDIATErc   r   r   r   r   r   w   s    r   c                       s�   e Zd Zddddddddœ‡ fdd„
Zedd„ ƒZdd	„ Zd
d„ Zdd„ Zdd„ Z	dd„ Z
dd„ Z‡ fdd„Z‡ fdd„Zdefdd„Z‡  ZS )r   r   N)Úfieldsr   Ú	conditionÚ
deferrableÚincludeÚ	opclassesr   c          	         sT  |st dƒ‚|s|st dƒ‚|r|rt dƒ‚t|td ƒtfƒs#t dƒ‚|r+|r+t dƒ‚|r3|r3t dƒ‚|r;|r;t dƒ‚|rC|rCt dƒ‚|rK|rKt d	ƒ‚t|td ƒtfƒsXt d
ƒ‚t|td ƒttfƒsft dƒ‚t|ttfƒsqt dƒ‚|rt|ƒt|ƒkrt dƒ‚t|ƒ| _|| _	|| _
|r�t|ƒnd| _|| _tdd„ |D ƒƒ| _tƒ 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ƒrt|ƒn|V  qd S r   )rd   Ústrr   )rH   Ú
expressionr   r   r   rK   ¸   s
   € ÿ
ÿz,UniqueConstraint.__init__.<locals>.<genexpr>r9   )Ú
ValueErrorrd   Útyper   r   ÚlistrP   Úlenrp   rq   rr   rs   rt   Úexpressionsr>   r   )	r   rp   r   rq   rr   rs   rt   r   r{   r?   r   r   r   �   sZ   ÿÿÿÿÿ

þzUniqueConstraint.__init__c                 C   s
   t | jƒS r   )Úboolr{   r   r   r   r   r   ¾   s   
z%UniqueConstraint.contains_expressionsc                    s`   | j d u rd S t|dd�}| | j ¡}|jˆ jd�}| |ˆ j¡\}}|t‡ fdd„|D ƒƒ S )NFr@   rB   c                 3   rD   r   rE   rG   rJ   r   r   rK   É   rL   z6UniqueConstraint._get_condition_sql.<locals>.<genexpr>)rq   r   rM   rN   rC   rO   rP   rQ   r   rJ   r   Ú_get_condition_sqlÂ   s   
z#UniqueConstraint._get_condition_sqlc                 C   sN   | j sd S g }| j D ]}t|ƒ}| |j¡ | |¡ q
t|Ž  t|dd�¡S )NF)rA   )r{   r	   Úset_wrapper_classesrC   Úappendr   Úresolve_expressionr   )r   r"   r#   Úindex_expressionsrv   Úindex_expressionr   r   r   Ú_get_index_expressionsË   s   

ÿz'UniqueConstraint._get_index_expressionsc              
      ó`   ‡ fdd„| j D ƒ}‡ fdd„| jD ƒ}|  ˆ |¡}|  ˆ |¡}|jˆ || j|| j|| j|d�S )Nc                    ó   g | ]}ˆ j  |¡‘qS r   ©r`   Ú	get_field©rH   Ú
field_name©r"   r   r   Ú
<listcomp>Ø   ó    z3UniqueConstraint.constraint_sql.<locals>.<listcomp>c                    ó   g | ]	}ˆ j  |¡j‘qS r   ©r`   r‡   Úcolumnrˆ   rŠ   r   r   r‹   Ù   ó    ÿ©rq   rr   rs   rt   r{   )rp   rs   r}   rƒ   Ú_unique_sqlr   rr   rt   ©r   r"   r#   rp   rs   rq   r{   r   rŠ   r   r$   ×   ó    
ÿøzUniqueConstraint.constraint_sqlc              
      r„   )Nc                    r…   r   r†   rˆ   rŠ   r   r   r‹   ê   rŒ   z/UniqueConstraint.create_sql.<locals>.<listcomp>c                    r�   r   rŽ   rˆ   rŠ   r   r   r‹   ë   r�   r‘   )rp   rs   r}   rƒ   Ú_create_unique_sqlr   rr   rt   r“   r   rŠ   r   r&   é   r”   zUniqueConstraint.create_sqlc              	      sJ   |   ˆ |¡}‡ fdd„| jD ƒ}|  ˆ |¡}|jˆ | j|| j|| j|d�S )Nc                    r�   r   rŽ   rˆ   rŠ   r   r   r‹   ý   r�   z/UniqueConstraint.remove_sql.<locals>.<listcomp>r‘   )r}   rs   rƒ   Ú_delete_unique_sqlr   rr   rt   )r   r"   r#   rq   rs   r{   r   rŠ   r   r'   û   s   
ÿùzUniqueConstraint.remove_sqlc                 C   s¢   d| j j| js	dndt| jƒ | jsdndt| jƒ dt| jƒ | jd u r'dnd| j | jd u r2dnd| j | js;dndt| jƒ | j	sHdf S d	t| j	ƒ f S )
Nz<%s:%s%s%s%s%s%s%s>Ú z
 fields=%sz expressions=%sz name=%sz condition=%sz deferrable=%rz include=%sz opclasses=%s)
r-   r7   rp   rb   r{   r   rq   rr   rs   rt   r   r   r   r   rc     s   øøzUniqueConstraint.__repr__c                    sv   t |tƒr5| j|jko4| j|jko4| j|jko4| j|jko4| j|jko4| j|jko4| j|jko4| j	|j	kS t
ƒ  |¡S r   )rd   r   r   rp   rq   rr   rs   rt   r{   r   r>   re   rf   r?   r   r   re     s"   

ÿ
þ
ý
ü
û
ú
ø
zUniqueConstraint.__eq__c                    sl   t ƒ  ¡ \}}}| jr| j|d< | jr| j|d< | jr | j|d< | jr(| j|d< | jr0| j|d< || j|fS )Nrp   rq   rr   rs   rt   )r>   r3   rp   rq   rr   rs   rt   r{   rh   r?   r   r   r3   %  s   




zUniqueConstraint.deconstructc                    sÐ  |j  |¡}| jrEi }| jD ]-}|r||v r d S |j |¡}t||jƒ}	|	d u s3|	dkr6t| jj	r6 d S |	||j
< q|jdi |¤Ž}n4|rb| jD ]}
|
 ¡ D ]}t|tƒr`|j
|v r`  d S qPqJ|j|j|d�‰ ‡ fdd„| jD ƒ}|j|Ž }| |j¡}|jjs�|d ur�|j|d�}| js¼| ¡ r¸| jr�t|  ¡ ƒ‚| ¡ D ]\}}|D ]}|| u r¶t| || j¡ƒ‚q§q¡d S d S |j|j|d�}z| jt| | j¡ƒ@ j||d�rÛt|  ¡ ƒ‚W d S  tyç   Y d S w )Nr—   r\   c                    s   g | ]
}t || ˆ ¡ƒ‘qS r   )r
   Úreplace_references)rH   Úexpr©Úreplacement_mapr   r   r‹   O  s    ÿÿz-UniqueConstraint.validate.<locals>.<listcomp>)Úpkr^   r   )Ú_default_managerr*   rp   r`   r‡   r<   Úattnamer   ÚfeaturesÚ!interprets_empty_strings_as_nullsr   Úfilterr{   Úflattenrd   r   r_   Ú_get_pk_valÚ_stateÚaddingr)   rq   Úexistsr   r,   Úget_constraintsÚunique_error_messager   r;   r   )r   r"   r(   r)   r*   ÚquerysetÚlookup_kwargsr‰   ÚfieldÚlookup_valuerv   r™   r{   Úmodel_class_pkÚconstraintsÚ
constraintra   r   rš   r   r+   3  sp   

ÿ
€þÿ
þ
ÿÿÿúÿýÿzUniqueConstraint.validate)r/   r.   r7   r   r8   r   r}   rƒ   r$   r&   r'   rc   re   r3   r   r+   ri   r   r   r?   r   r   €   s(    ÷=
	r   N)Úenumr   Údjango.core.exceptionsr   r   Ú	django.dbr   Údjango.db.models.expressionsr   r   r   Údjango.db.models.indexesr	   Údjango.db.models.lookupsr
   Údjango.db.models.query_utilsr   Údjango.db.models.sql.queryr   Údjango.db.utilsr   Údjango.utils.translationr   r4   Ú__all__r   r   r   r   r   r   r   r   Ú<module>   s    .9	