o
    cZhb(                     @   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 Z
dd	 ZG d
d dZG dd dZG dd dZG dd dZG dd deZG dd deZG dd deZdS )aK  
We perform uniqueness checks explicitly on the serializer class, rather
the using Django's `.full_clean()`.

This gives us better separation of concerns, allows us to use single-step
object creation, and makes it possible to switch between using the implicit
`ModelSerializer` class and an equivalent explicit `Serializer` class.
    )	DataError)gettext_lazy)ValidationError)
smart_reprc              
   C   s&   z|   W S  tttfy   Y dS w )NF)exists	TypeError
ValueErrorr   )queryset r
   P/var/www/html/lang_env/lib/python3.10/site-packages/rest_framework/validators.py	qs_exists   s
   
r   c              
   K   s4   z	| j di |W S  tttfy   |   Y S w )Nr
   )filterr   r   r   none)r	   kwargsr
   r
   r   	qs_filter   s
   r   c                   @   sF   e Zd ZdZedZdZdddZdd	 Zd
d Z	dd Z
dd ZdS )UniqueValidatorz
    Validator that corresponds to `unique=True` on a model field.

    Should be applied to an individual field on the serializer.
    zThis field must be unique.TNexactc                 C   s   || _ |p| j| _|| _d S N)r	   messagelookup)selfr	   r   r   r
   r
   r   __init__*   s   
zUniqueValidator.__init__c                 C   s"   d|| j f |i}t|fi |S )zT
        Filter the queryset to all instances matching the given attribute.
        z%s__%s)r   r   )r   valuer	   
field_namefilter_kwargsr
   r
   r   filter_queryset/   s   zUniqueValidator.filter_querysetc                 C   s   |dur|j |jdS |S z}
        If an instance is being updated, then do not include
        that instance itself as a uniqueness conflict.
        N)pkexcluder   )r   r	   instancer
   r
   r   exclude_current_instance6      z(UniqueValidator.exclude_current_instancec                 C   sR   |j d }t|jdd }| j}| |||}| ||}t|r't| jddd S )Nr    uniquecode)	source_attrsgetattrparentr	   r   r!   r   r   r   )r   r   Zserializer_fieldr   r    r	   r
   r
   r   __call__?   s   
zUniqueValidator.__call__c                 C   s   d| j jt| jf S )Nz<%s(queryset=%s)>)	__class____name__r   r	   r   r
   r
   r   __repr__L   s   zUniqueValidator.__repr__)Nr   )r,   
__module____qualname____doc___r   requires_contextr   r   r!   r*   r.   r
   r
   r
   r   r   !   s    
	r   c                   @   sV   e Zd ZdZedZedZdZdddZdd	 Z	d
d Z
dd Zdd Zdd ZdS )UniqueTogetherValidatorz
    Validator that corresponds to `unique_together = (...)` on a model class.

    Should be applied to the serializer class, not to an individual field.
    z0The fields {field_names} must make a unique set.This field is required.TNc                 C   s   || _ || _|p
| j| _d S r   )r	   fieldsr   )r   r	   r6   r   r
   r
   r   r   ]   s   z UniqueTogetherValidator.__init__c                    s:   j durdS  fddjD }|rt|dddS )z~
        The `UniqueTogetherValidator` always forces an implied 'required'
        state on the fields it applies to.
        Nc                    s$   i | ]}j | j vr|jqS r
   )r6   sourcemissing_message.0r   attrsr   
serializerr
   r   
<dictcomp>j   s
    zCUniqueTogetherValidator.enforce_required_fields.<locals>.<dictcomp>requiredr%   )r    r6   r   )r   r<   r=   missing_itemsr
   r;   r   enforce_required_fieldsb   s   
z/UniqueTogetherValidator.enforce_required_fieldsc                    sb   fdd| j D }jdur |D ]}| vrtj| |< q fdd|D }t|fi |S )zU
        Filter the queryset to all instances matching the given attributes.
        c                    s   g | ]} j | jqS r
   )r6   r7   r9   )r=   r
   r   
<listcomp>w   s    
z;UniqueTogetherValidator.filter_queryset.<locals>.<listcomp>Nc                    s   i | ]}| | qS r
   r
   )r:   r7   )r<   r
   r   r>      s    z;UniqueTogetherValidator.filter_queryset.<locals>.<dictcomp>)r6   r    r(   r   )r   r<   r	   r=   sourcesr7   r   r
   )r<   r=   r   r   r   s   


z'UniqueTogetherValidator.filter_querysetc                 C      |dur|j |jdS |S r   r   r   r<   r	   r    r
   r
   r   r!      r"   z0UniqueTogetherValidator.exclude_current_instancec                    s     ||  j} |||} |||j} fdd| D }d |vr>t|r@d j} j	j
|d}t|ddd S d S )Nc                    s   g | ]\}}| j v r|qS r
   )r6   )r:   fieldr   r-   r
   r   rB      s    z4UniqueTogetherValidator.__call__.<locals>.<listcomp>z, )field_namesr$   r%   )rA   r	   r   r!   r    itemsr   joinr6   r   formatr   )r   r<   r=   r	   Zchecked_valuesrG   r   r
   r-   r   r*      s   
z UniqueTogetherValidator.__call__c                 C   s   d| j jt| jt| jf S )Nz<%s(queryset=%s, fields=%s)>)r+   r,   r   r	   r6   r-   r
   r
   r   r.      s
   z UniqueTogetherValidator.__repr__r   )r,   r/   r0   r1   r2   r   r8   r3   r   rA   r   r!   r*   r.   r
   r
   r
   r   r4   S   s    
	r4   c                   @   s    e Zd ZedZdZdd ZdS )$ProhibitSurrogateCharactersValidatorz7Surrogate characters are not allowed: U+{code_point:X}.Z surrogate_characters_not_allowedc                 C   s:   dd t |D D ]}| jjt|d}t|| jdd S )Nc                 s   s0    | ]}d t |  krdkrn n|V  qdS )i   i  N)ord)r:   chr
   r
   r   	<genexpr>   s    z@ProhibitSurrogateCharactersValidator.__call__.<locals>.<genexpr>)
code_pointr%   )strr   rJ   rL   r   r&   )r   r   Zsurrogate_characterr   r
   r
   r   r*      s   z-ProhibitSurrogateCharactersValidator.__call__N)r,   r/   r0   r2   r   r&   r*   r
   r
   r
   r   rK      s    rK   c                   @   sN   e Zd ZdZedZdZdddZdd Zdd	 Z	d
d Z
dd Zdd ZdS )BaseUniqueForValidatorNr5   Tc                 C   s"   || _ || _|| _|p| j| _d S r   )r	   rF   
date_fieldr   )r   r	   rF   rR   r   r
   r
   r   r      s   zBaseUniqueForValidator.__init__c                    s0    fddj jfD }|rt|dddS )z
        The `UniqueFor<Range>Validator` classes always force an implied
        'required' state on the fields they are applied to.
        c                    s   i | ]
}| vr|j qS r
   )r8   r9   r<   r   r
   r   r>      s
    zBBaseUniqueForValidator.enforce_required_fields.<locals>.<dictcomp>r?   r%   N)rF   rR   r   )r   r<   r@   r
   rS   r   rA      s   
z.BaseUniqueForValidator.enforce_required_fieldsc                 C   s   t d)Nz&`filter_queryset` must be implemented.)NotImplementedError)r   r<   r	   r   date_field_namer
   r
   r   r      s   z&BaseUniqueForValidator.filter_querysetc                 C   rD   r   r   rE   r
   r
   r   r!      r"   z/BaseUniqueForValidator.exclude_current_instancec                 C   s   |j | j jd }|j | j jd }| | | j}| ||||}| |||j}t	|r?| j
j| jd}t| j|iddd S )Nr#   )rR   r$   r%   )r6   rF   r'   rR   rA   r	   r   r!   r    r   r   rJ   r   )r   r<   r=   r   rU   r	   r   r
   r
   r   r*      s   
zBaseUniqueForValidator.__call__c                 C   s&   d| j jt| jt| jt| jf S )Nz*<%s(queryset=%s, field=%s, date_field=%s)>)r+   r,   r   r	   rF   rR   r-   r
   r
   r   r.      s   zBaseUniqueForValidator.__repr__r   )r,   r/   r0   r   r2   r8   r3   r   rA   r   r!   r*   r.   r
   r
   r
   r   rQ      s    
	rQ   c                   @      e Zd ZedZdd ZdS )UniqueForDateValidatorz6This field must be unique for the "{date_field}" date.c                 C   sZ   || j  }|| j }i }|||< |j|d| < |j|d| < |j|d| < t|fi |S )Nz%s__day	%s__month%s__year)rF   rR   daymonthyearr   r   r<   r	   r   rU   r   dater   r
   r
   r   r      s   

z&UniqueForDateValidator.filter_querysetNr,   r/   r0   r2   r   r   r
   r
   r
   r   rW          rW   c                   @   rV   )UniqueForMonthValidatorz7This field must be unique for the "{date_field}" month.c                 C   >   || j  }|| j }i }|||< |j|d| < t|fi |S )NrX   )rF   rR   r[   r   r]   r
   r
   r   r        

z'UniqueForMonthValidator.filter_querysetNr_   r
   r
   r
   r   ra     r`   ra   c                   @   rV   )UniqueForYearValidatorz6This field must be unique for the "{date_field}" year.c                 C   rb   )NrY   )rF   rR   r\   r   r]   r
   r
   r   r     rc   z&UniqueForYearValidator.filter_querysetNr_   r
   r
   r
   r   rd     r`   rd   N)r1   Z	django.dbr   Zdjango.utils.translationr   r2   Zrest_framework.exceptionsr   Z#rest_framework.utils.representationr   r   r   r   r4   rK   rQ   rW   ra   rd   r
   r
   r
   r   <module>   s    2W=