B
    CVvg/)                 @   s  d dl Z d dlmZ d dlmZ d dlmZ d dlmZm	Z	 d dl
mZmZmZmZmZ d dlmZ d dlmZmZ d d	lmZ d
dlmZ ddlmZ dgZG dd deeZG dd dZejG dd deejZ ejG dd deej!Z"ejG dd deeZ#ejG dd deej$Z%ejG dd deZ&ejG dd deZ'G dd deZ(G d d! d!Z)G d"d# d#eZ*G d$d% d%Z+dS )&    N)lookups)SimpleArrayField)ArrayMaxLengthValidator)checks
exceptions)FieldFuncIntegerField	TransformValue)CheckFieldDefaultMixin)ExactIn)gettext_lazy   )prefix_validation_error   )AttributeSetter
ArrayFieldc                   s   e Zd ZdZededdZdZd, fdd	Zed	d
 Z	e	j
dd
 Z	e fddZ fddZ fddZedd Zdd Zdd Zdd Zd-ddZ fddZdd Zd d! Zd"d# Z fd$d%Z fd&d'Z fd(d)Z fd*d+Z  ZS ).r   Fz+Item %(nth)s in the array did not validate:z(Nested arrays must have the same length.)item_invalidnested_array_mismatch)listz[]Nc                sL   || _ || _| jr&| jt| jf| _t| j dr:| j| _t jf | d S )Nfrom_db_value)	
base_fieldsizeZdefault_validatorsr   hasattr_from_db_valuer   super__init__)selfr   r   kwargs)	__class__ H/tmp/pip-install-o3oxmrkh/Django/django/contrib/postgres/fields/array.pyr      s    zArrayField.__init__c             C   s4   y
| j d S  tk
r.   td| jj Y nX d S )Nmodelz$'%s' object has no attribute 'model')__dict__KeyErrorAttributeErrorr!   __name__)r   r"   r"   r#   r$   %   s    
zArrayField.modelc             C   s   || j d< || j_d S )Nr$   )r%   r   r$   )r   r$   r"   r"   r#   r$   ,   s    
c                s   t |ttfpt |S )N)
isinstancer   tupler   _choices_is_value)clsvalue)r!   r"   r#   r+   1   s    zArrayField._choices_is_valuec                sn   t  jf |}| jjr.|tjd| dd n<| j }|rjddd |D }|tjd| | dd |S )	Nz/Base field for array cannot be a related field.zpostgres.E002)objidz
    c             s   s   | ]}d |j |jf V  qdS )z%s (%s)N)msgr/   ).0errorr"   r"   r#   	<genexpr>C   s    z#ArrayField.check.<locals>.<genexpr>z'Base field for array has errors:
    %szpostgres.E001)r   checkr   Zremote_fieldappendr   Errorjoin)r   r    errorsZbase_errorsmessages)r!   r"   r#   r4   5   s     

zArrayField.checkc                s   t  | | j| d S )N)r   set_attributes_from_namer   )r   name)r!   r"   r#   r:   M   s    z#ArrayField.set_attributes_from_namec             C   s   d| j j S )NzArray of %s)r   description)r   r"   r"   r#   r<   Q   s    zArrayField.descriptionc             C   s   | j pd}d| j||f S )N z%s[%s])r   r   db_type)r   
connectionr   r"   r"   r#   r>   U   s    
zArrayField.db_typec             C   s   | j pd}d| j||f S )Nr=   z%s[%s])r   r   cast_db_type)r   r?   r   r"   r"   r#   r@   Y   s    
zArrayField.cast_db_typec             C   s   d | |S )Nz%s::{})formatr>   )r   r-   compilerr?   r"   r"   r#   get_placeholder]   s    zArrayField.get_placeholderc                s&   t |ttfr" fdd|D S |S )Nc                s   g | ]}j j| d dqS )F)prepared)r   get_db_prep_value)r1   i)r?   r   r"   r#   
<listcomp>b   s    z0ArrayField.get_db_prep_value.<locals>.<listcomp>)r)   r   r*   )r   r-   r?   rD   r"   )r?   r   r#   rE   `   s    zArrayField.get_db_prep_valuec                sB   t   \}}}}|dkrd}|| j | jd ||||fS )Nz/django.contrib.postgres.fields.array.ArrayFieldz)django.contrib.postgres.fields.ArrayField)r   r   )r   deconstructupdater   cloner   )r   r;   pathargsr    )r!   r"   r#   rH   e   s    zArrayField.deconstructc                s*   t |tr&t|} fdd|D }|S )Nc                s   g | ]} j |qS r"   )r   	to_python)r1   val)r   r"   r#   rG   s   s    z(ArrayField.to_python.<locals>.<listcomp>)r)   strjsonloads)r   r-   valsr"   )r   r#   rM   o   s    

zArrayField.to_pythonc                s"   |d kr|S  fdd|D S )Nc                s   g | ]}j | qS r"   )r   r   )r1   item)r?   
expressionr   r"   r#   rG   z   s   z-ArrayField._from_db_value.<locals>.<listcomp>r"   )r   r-   rT   r?   r"   )r?   rT   r   r#   r   v   s    zArrayField._from_db_valuec             C   s\   g }|  |}| j}x<|D ]4}|d kr2|d  qt|j|}||| qW t|S )N)Zvalue_from_objectr   r5   r   Zattnamevalue_to_stringrP   dumps)r   r.   valuesrR   r   rN   r"   r"   r#   rU   ~   s    

zArrayField.value_to_stringc                s   t  |}|r|S d|krRyt|}W n tk
r<   Y nX |d7 }t|| jS y&|d\}}t|d }t|}W n tk
r   Y nX t||S d S )N_r   )r   get_transformint
ValueErrorIndexTransformFactoryr   splitSliceTransformFactory)r   r;   Z	transformindexstartend)r!   r"   r#   rY      s"    zArrayField.get_transformc                s   t  || xjt|D ]^\}}y| j|| W q tjk
rt } z"t|| jd dd|d idW d d }~X Y qX qW t| jt	rt
dd |D dkrtj| jd ddd S )	Nr   nthr   )prefixcodeparamsc             S   s   h | ]}t |qS r"   )len)r1   rF   r"   r"   r#   	<setcomp>   s    z&ArrayField.validate.<locals>.<setcomp>r   )rd   )r   validate	enumerater   r   ValidationErrorr   error_messagesr)   r   rf   )r   r-   Zmodel_instancer_   partr2   )r!   r"   r#   rh      s    &zArrayField.validatec                sz   t  | xht|D ]\\}}y| j| W q tjk
rp } z"t|| jd dd|d idW d d }~X Y qX qW d S )Nr   rb   r   )rc   rd   re   )r   run_validatorsri   r   r   rj   r   rk   )r   r-   r_   rl   r2   )r!   r"   r#   rm      s    zArrayField.run_validatorsc                s"   t  jf t| j | jd|S )N)Z
form_classr   
max_length)r   	formfieldr   r   r   )r   r    )r!   r"   r#   ro      s
    zArrayField.formfield)N)F)r(   
__module____qualname__Zempty_strings_allowedrX   Zdefault_error_messagesZ_default_hintr   propertyr$   setterclassmethodr+   r4   r:   r<   r>   r@   rC   rE   rH   rM   r   rU   rY   rh   rm   ro   __classcell__r"   r"   )r!   r#   r      s.   

c                   s(   e Zd Z fddZ fddZ  ZS )ArrayRHSMixinc                sl   t |ttfrZg }x6|D ].}t|ds<|j}t|j|}|| qW t	|ddd}t
 || d S )Nresolve_expressionARRAYz%(function)s[%(expressions)s])functiontemplate)r)   r*   r   r   output_fieldr   r   Zget_prep_valuer5   r   r   r   )r   lhsrhsZexpressionsr-   field)r!   r"   r#   r      s    


zArrayRHSMixin.__init__c                s0   t  ||\}}| jj|}d||f |fS )Nz%s::%s)r   process_rhsr|   r{   r@   )r   rB   r?   r}   Z
rhs_paramsZ	cast_type)r!   r"   r#   r      s    zArrayRHSMixin.process_rhs)r(   rp   rq   r   r   ru   r"   r"   )r!   r#   rv      s   rv   c               @   s   e Zd ZdS )ArrayContainsN)r(   rp   rq   r"   r"   r"   r#   r      s   r   c               @   s   e Zd ZdS )ArrayContainedByN)r(   rp   rq   r"   r"   r"   r#   r      s   r   c               @   s   e Zd ZdS )
ArrayExactN)r(   rp   rq   r"   r"   r"   r#   r      s   r   c               @   s   e Zd ZdS )ArrayOverlapN)r(   rp   rq   r"   r"   r"   r#   r      s   r   c               @   s   e Zd ZdZe Zdd ZdS )ArrayLenTransformrf   c             C   s    | | j\}}dd|i |fS )NzRCASE WHEN %(lhs)s IS NULL THEN NULL ELSE coalesce(array_length(%(lhs)s, 1), 0) ENDr|   )compiler|   )r   rB   r?   r|   re   r"   r"   r#   as_sql   s    zArrayLenTransform.as_sqlN)r(   rp   rq   lookup_namer	   r{   r   r"   r"   r"   r#   r      s   r   c                   s   e Zd Z fddZ  ZS )ArrayInLookupc                sR   t   }t|dr|S g }x0|D ](}t|dr<|| q"|t| q"W |S )Nrw   )r   get_prep_lookupr   r5   r*   )r   rW   Zprepared_valuesr-   )r!   r"   r#   r     s    



zArrayInLookup.get_prep_lookup)r(   rp   rq   r   ru   r"   r"   )r!   r#   r     s   r   c                   s0   e Zd Z fddZdd Zedd Z  ZS )IndexTransformc                s   t  j|| || _|| _d S )N)r   r   r_   r   )r   r_   r   rL   r    )r!   r"   r#   r     s    zIndexTransform.__init__c             C   s$   | | j\}}d| || jg fS )Nz%s[%%s])r   r|   r_   )r   rB   r?   r|   re   r"   r"   r#   r     s    zIndexTransform.as_sqlc             C   s   | j S )N)r   )r   r"   r"   r#   r{     s    zIndexTransform.output_field)r(   rp   rq   r   r   rr   r{   ru   r"   r"   )r!   r#   r     s   r   c               @   s   e Zd Zdd Zdd ZdS )r\   c             C   s   || _ || _d S )N)r_   r   )r   r_   r   r"   r"   r#   r   $  s    zIndexTransformFactory.__init__c             O   s   t | j| jf||S )N)r   r_   r   )r   rL   r    r"   r"   r#   __call__(  s    zIndexTransformFactory.__call__N)r(   rp   rq   r   r   r"   r"   r"   r#   r\   "  s   r\   c                   s$   e Zd Z fddZdd Z  ZS )SliceTransformc                s   t  j|| || _|| _d S )N)r   r   r`   ra   )r   r`   ra   rL   r    )r!   r"   r#   r   .  s    zSliceTransform.__init__c             C   s(   | | j\}}d| || j| jg fS )Nz%s[%%s:%%s])r   r|   r`   ra   )r   rB   r?   r|   re   r"   r"   r#   r   3  s    zSliceTransform.as_sql)r(   rp   rq   r   r   ru   r"   r"   )r!   r#   r   ,  s   r   c               @   s   e Zd Zdd Zdd ZdS )r^   c             C   s   || _ || _d S )N)r`   ra   )r   r`   ra   r"   r"   r#   r   :  s    zSliceTransformFactory.__init__c             O   s   t | j| jf||S )N)r   r`   ra   )r   rL   r    r"   r"   r#   r   >  s    zSliceTransformFactory.__call__N)r(   rp   rq   r   r   r"   r"   r"   r#   r^   8  s   r^   ),rP   Zdjango.contrib.postgresr   Zdjango.contrib.postgres.formsr   Z"django.contrib.postgres.validatorsr   Zdjango.corer   r   Zdjango.db.modelsr   r   r	   r
   r   Zdjango.db.models.fields.mixinsr   Zdjango.db.models.lookupsr   r   Zdjango.utils.translationr   rX   utilsr   r   __all__r   rv   Zregister_lookupZDataContainsr   ZContainedByr   r   ZOverlapr   r   r   r   r\   r   r^   r"   r"   r"   r#   <module>   s<    8

