o
    "4g-                     @   s&  d dl mZ d dlmZmZ d dlmZmZmZ d dl	m
Z
mZ d dlm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G dd deZG dd deZG dd deZG dd deZG dd deZG dd deeZG dd deZG d d! d!eZG d"d# d#eZG d$d% d%eZG d&d' d'eZG d(d) d)eZG d*d+ d+eZ G d,d- d-eeeZ!G d.d/ d/eeeZ"G d0d1 d1eeeeZ#G d2d3 d3eeeeZ$G d4d5 d5eeeeZ%G d6d7 d7eZ&G d8d9 d9eZ'G d:d; d;eZ(G d<d= d=eZ)d>S )?    NotSupportedError)FuncValue)	CharFieldIntegerField	TextField)CastCoalesce)	Transformc                          e Zd Z fddZ  ZS )MySQLSHA2Mixinc                    s(   t  j||fdd| jdd   i|S )NtemplatezSHA2(%%(expressions)s, %s)   )superas_sqlfunctionselfcompiler
connectionextra_context	__class__ e/var/www/html/notificationserver/venv/lib/python3.10/site-packages/django/db/models/functions/text.pyas_mysql	   s   zMySQLSHA2Mixin.as_mysql)__name__
__module____qualname__r   __classcell__r   r   r   r   r          r   c                       r   )OracleHashMixinc                       t  j||fddi|S )Nr   zcLOWER(RAWTOHEX(STANDARD_HASH(UTL_I18N.STRING_TO_RAW(%(expressions)s, 'AL32UTF8'), '%(function)s')))r   r   r   r   r   r   	as_oracle   s   zOracleHashMixin.as_oracle)r   r   r   r%   r    r   r   r   r   r"      r!   r"   c                       r   )PostgreSQLSHAMixinc                    s"   t  j||fd| j d|S )Nz6ENCODE(DIGEST(%(expressions)s, '%(function)s'), 'hex'))r   r   )r   r   r   lowerr   r   r   r   as_postgresql    s   z PostgreSQLSHAMixin.as_postgresql)r   r   r   r(   r    r   r   r   r   r&      r!   r&   c                       sB   e Zd ZdZdZe Z fddZ fddZ fddZ	  Z
S )	ChrCHRchrc                       t  j||fddd|S )NCHARz)%(function)s(%(expressions)s USING utf16)r   r   r$   r   r   r   r   r   /   s   zChr.as_mysqlc                    r#   )Nr   z,%(function)s(%(expressions)s USING NCHAR_CS)r$   r   r   r   r   r%   8   s   zChr.as_oraclec                    r#   )Nr   r-   r$   r   r   r   r   	as_sqlite@      zChr.as_sqlite)r   r   r   r   lookup_namer   output_fieldr   r%   r/   r    r   r   r   r   r)   *   s    	r)   c                       sD   e Zd ZdZdZ fddZeZdd Z fddZd	d
 Z	  Z
S )
ConcatPairz
    Concatenate two arguments together. This is used by `Concat` because not
    all backend databases support more than two arguments.
    CONCATc                    s(   |   }tt|j||fddd|S )N%(expressions)sz || )r   
arg_joiner)coalescer   r3   r   )r   r   r   r   	coalescedr   r   r   pipes_concat_sqlL   s   
zConcatPair.pipes_concat_sqlc                 K   s4   |   }|dd | D  |j||fi |S )Nc                 S   s,   g | ]}t |jttfr|nt|t qS r   )
isinstancer2   r   r   r	   .0
expressionr   r   r   
<listcomp>[   s    
z,ConcatPair.as_postgresql.<locals>.<listcomp>)copyset_source_expressionsget_source_expressionsr9   )r   r   r   r   cr   r   r   r(   X   s   
zConcatPair.as_postgresqlc                    r,   )N	CONCAT_WSz!%(function)s('', %(expressions)s)r.   r$   r   r   r   r   r   f   s   zConcatPair.as_mysqlc                 C   s$   |   }|dd | D  |S )Nc                 S   s   g | ]	}t |td qS ) )r
   r   r;   r   r   r   r>   t   s    z'ConcatPair.coalesce.<locals>.<listcomp>)r?   r@   rA   )r   rB   r   r   r   r7   p   s   zConcatPair.coalesce)r   r   r   __doc__r   r9   r/   r(   r   r7   r    r   r   r   r   r3   D   s    

r3   c                       s0   e Zd ZdZdZdZ fddZdd Z  ZS )Concatz
    Concatenate text fields together. Backends that result in an entire
    null expression when any arguments are null will wrap each argument in
    coalesce functions to ensure a non-null result.
    Nr5   c                    s@   t |dk r
td| j||dd}t j|fi | d S )N   z)Concat must take at least two expressionsr2   r2   )len
ValueError_pairedgetr   __init__)r   expressionsextrapairedr   r   r   rM      s   zConcat.__init__c                 C   s>   t |dkrt|d|iS t|d | j|dd  |d|dS )NrG   r2   r      rH   )rI   r3   rK   )r   rN   r2   r   r   r   rK      s   zConcat._paired)	r   r   r   rE   r   r   rM   rK   r    r   r   r   r   rF   |   s    rF   c                       sB   e Zd ZdZdZe Z fddZdd Zdd Z	d	d
 Z
  ZS )LeftLEFTrG   c                    s4   t |ds|dk rtdt j||fi | dS )z
        expression: the name of a field, or an expression returning a string
        length: the number of characters to return from the start of the string
        resolve_expressionrQ   z 'length' must be greater than 0.NhasattrrJ   r   rM   )r   r=   lengthrO   r   r   r   rM      s   
zLeft.__init__c                 C   s   t | jd td| jd S )Nr   rQ   Substrsource_expressionsr   r   r   r   r   
get_substr      zLeft.get_substrc                 K      |   j||fi |S N)r\   r%   r   r   r   r   r%         zLeft.as_oraclec                 K   r^   r_   )r\   r/   r   r   r   r   r/      r`   zLeft.as_sqlite)r   r   r   r   arityr   r2   rM   r\   r%   r/   r    r   r   r   r   rR      s    
rR   c                       .   e Zd ZdZdZdZe Z fddZ  Z	S )Lengthz2Return the number of characters in the expression.LENGTHrW   c                    r#   )Nr   CHAR_LENGTHr$   r   r   r   r   r      s   zLength.as_mysql)
r   r   r   rE   r   r1   r   r2   r   r    r   r   r   r   rc      s    rc   c                   @      e Zd ZdZdZdS )LowerLOWERr'   Nr   r   r   r   r1   r   r   r   r   rg          rg   c                       s.   e Zd ZdZe Zedf fdd	Z  ZS )LPadLPAD c                    s>   t |ds|d ur|dk rtdt j|||fi | d S )NrT   r   z''length' must be greater or equal to 0.rU   )r   r=   rW   	fill_textrO   r   r   r   rM      s   zLPad.__init__)	r   r   r   r   r   r2   r   rM   r    r   r   r   r   rk      s    rk   c                   @   rf   )LTrimLTRIMltrimNri   r   r   r   r   ro      rj   ro   c                   @      e Zd Zd ZdZdS )MD5md5Nri   r   r   r   r   rs      rj   rs   c                       s6   e Zd ZdZdZe Z fddZ fddZ  Z	S )OrdASCIIordc                    r#   )Nr   ORDr$   r   r   r   r   r      r0   zOrd.as_mysqlc                    r#   )Nr   UNICODEr$   r   r   r   r   r/      r0   zOrd.as_sqlite)
r   r   r   r   r1   r   r2   r   r/   r    r   r   r   r   ru      s    ru   c                       s.   e Zd ZdZe Z fddZdd Z  ZS )RepeatREPEATc                    s<   t |ds|d ur|dk rtdt j||fi | d S )NrT   r   z''number' must be greater or equal to 0.rU   )r   r=   numberrO   r   r   r   rM      s   zRepeat.__init__c                 K   sB   | j \}}|d u rd nt|| }t|||}|j||fi |S r_   )rZ   rc   RPadr   )r   r   r   r   r=   r|   rW   rpadr   r   r   r%      s   
zRepeat.as_oracle)	r   r   r   r   r   r2   rM   r%   r    r   r   r   r   rz      s
    	rz   c                       s(   e Zd ZdZedf fdd	Z  ZS )ReplaceREPLACErD   c                    s   t  j|||fi | d S r_   )r   rM   )r   r=   textreplacementrO   r   r   r   rM      r]   zReplace.__init__)r   r   r   r   r   rM   r    r   r   r   r   r      s    r   c                       s$   e Zd ZdZdZ fddZ  ZS )ReverseREVERSEreversec                    s:   |j j}t j||fdd| di|\}}||d fS )Nr   zk(SELECT LISTAGG(s) WITHIN GROUP (ORDER BY n DESC) FROM (SELECT LEVEL n, SUBSTR(%(expressions)s, LEVEL, 1) szG CONNECT BY LEVEL <= LENGTH(%(expressions)s)) GROUP BY %(expressions)s)r   )featuresbare_select_suffixr   r   )r   r   r   r   suffixsqlparamsr   r   r   r%     s   	
zReverse.as_oracle)r   r   r   r   r1   r%   r    r   r   r   r   r     s    r   c                   @   s   e Zd ZdZdd ZdS )RightRIGHTc                 C   s&   t | jd | jd td | jd S )Nr   rQ   rX   r[   r   r   r   r\     s
   zRight.get_substrN)r   r   r   r   r\   r   r   r   r   r     s    r   c                   @   s   e Zd ZdZdS )r}   RPADN)r   r   r   r   r   r   r   r   r}   $  s    r}   c                   @   rf   )RTrimRTRIMrtrimNri   r   r   r   r   r   (  rj   r   c                   @   rr   )SHA1sha1Nri   r   r   r   r   r   -  rj   r   c                   @   s   e Zd Zd ZdZdd ZdS )SHA224sha224c                 K   s   t d)Nz"SHA224 is not supported on Oracle.r   r   r   r   r   r%   6  s   zSHA224.as_oracleN)r   r   r   r   r1   r%   r   r   r   r   r   2  s    r   c                   @   rr   )SHA256sha256Nri   r   r   r   r   r   :  rj   r   c                   @   rr   )SHA384sha384Nri   r   r   r   r   r   ?  rj   r   c                   @   rr   )SHA512sha512Nri   r   r   r   r   r   D  rj   r   c                       rb   )StrIndexz
    Return a positive integer corresponding to the 1-indexed position of the
    first occurrence of a substring inside another string, or 0 if the
    substring is not found.
    INSTRrG   c                    r#   )Nr   STRPOSr$   r   r   r   r   r(   T  r0   zStrIndex.as_postgresql)
r   r   r   rE   r   ra   r   r2   r(   r    r   r   r   r   r   I  s    r   c                       s@   e Zd ZdZe Zd	 fdd	Z fddZ fddZ  Z	S )
rY   	SUBSTRINGNc                    sJ   t |ds|dk rtd||g}|dur|| t j|i | dS )z
        expression: the name of a field, or an expression returning a string
        pos: an integer > 0, or an expression returning an integer
        length: an optional number of characters to return
        rT   rQ   z'pos' must be greater than 0N)rV   rJ   appendr   rM   )r   r=   posrW   rO   rN   r   r   r   rM   \  s   

zSubstr.__init__c                    r#   Nr   SUBSTRr$   r   r   r   r   r/   j  r0   zSubstr.as_sqlitec                    r#   r   r$   r   r   r   r   r%   m  r0   zSubstr.as_oracler_   )
r   r   r   r   r   r2   rM   r/   r%   r    r   r   r   r   rY   X  s    rY   c                   @   rf   )TrimTRIMtrimNri   r   r   r   r   r   q  rj   r   c                   @   rf   )UpperUPPERupperNri   r   r   r   r   r   v  rj   r   N)*	django.dbr   django.db.models.expressionsr   r   django.db.models.fieldsr   r   r   django.db.models.functionsr	   r
   django.db.models.lookupsr   r   r"   r&   r)   r3   rF   rR   rc   rg   rk   ro   rs   ru   rz   r   r   r   r}   r   r   r   r   r   r   r   rY   r   r   r   r   r   r   <module>   sB    
8