o
    `Zh<                     @   s   d dl Z d dlmZmZ d dlmZ d dl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 d dlmZ d d	lmZ ed
d ZG dd deZdS )    N)	lru_cachepartial)settings)BaseDatabaseOperations)InetJsonberrorsis_psycopg3mogrifysplit_tzname_delta)
OnConflict)Cast)_lazy_re_compilec                 C   s   | d u rt jS tt j| dS )N)cls)jsondumpsr   )encoder r   _/var/www/html/lang_env/lib/python3.10/site-packages/django/db/backends/postgresql/operations.pyget_json_dumps   s   r   c                       s  e Zd ZdZdZeg dZddddZer+dd	l	m
Z
 e
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Zdd ZedZdd Zd`ddZdd Zdd Zdd Zdd Zdd Zdd Zdd  Zd`d!d"Zd#d$ Zd%d& Zd`d'd(Zd)d* Zd+d, Z d-d. Z!d/d0 Z"d1d2 Z#d3d3d4d5d6Z$d7d8 Z%dad9d:Z&d;d< Z'd=d> Z(d?d@ Z)dAdB Z*erdCdD Z+ndEdD Z+dFdG Z,dHdI Z-erdJdK Z.dLdM Z/dNdO Z0dPdQ Z1dbdRdSZ2dTdU Z3dVdW Z4 fdXdYZ5d` fdZd[	Z6 fd\d]Z7 fd^d_Z8  Z9S )cDatabaseOperationsZvarcharZEXPLAIN)ZANALYZEZBUFFERSZCOSTSZSETTINGSZSUMMARYZTIMINGVERBOSEZWALintegerZbigintZsmallint)	AutoFieldZBigAutoFieldZSmallAutoFieldr   )numeric)ZSmallIntegerFieldZIntegerFieldZBigIntegerFieldZPositiveSmallIntegerFieldZPositiveIntegerFieldZPositiveBigIntegerFieldc                 C   s.   |  }|dv rd|| jdd  S dS )N)GenericIPAddressFieldIPAddressFieldZ	TimeFieldZ	UUIDFieldzCAST(%%s AS %s)(r   %s)Zget_internal_typedb_type
connectionsplit)selfZoutput_fieldinternal_typer   r   r   unification_cast_sql;   s
   z'DatabaseOperations.unification_cast_sqlz[A-Z_]+c                 C   s   |dkrd| d|fS |dkrd| d|fS |dkr$d| d|fS |  }| j|s5td	|d
| d| d|fS )NZweek_dayzEXTRACT(DOW FROM z) + 1Ziso_week_dayzEXTRACT(ISODOW FROM )Ziso_yearzEXTRACT(ISOYEAR FROM zInvalid lookup type: zEXTRACT(z FROM )upper_extract_format_re	fullmatch
ValueErrorr#   lookup_typesqlparamsr   r   r   date_extract_sqlR   s   z#DatabaseOperations.date_extract_sqlNc                 C   *   |  |||\}}d| d|g|R fS NDATE_TRUNC(%s, r&   _convert_sql_to_tzr#   r,   r-   r.   tznamer   r   r   date_trunc_sqla      z!DatabaseOperations.date_trunc_sqlc                 C   s6   t |\}}}|r|dkrdnd}| | | S |S )N+-r   )r#   r6   signoffsetr   r   r   _prepare_tzname_deltaf   s
   z(DatabaseOperations._prepare_tzname_deltac                 C   s4   |rt jr| |}| dg ||R fS ||fS )Nz AT TIME ZONE %s)r   ZUSE_TZr=   )r#   r-   r.   r6   Ztzname_paramr   r   r   r4   m   s   

z%DatabaseOperations._convert_sql_to_tzc                 C   "   |  |||\}}d| d|fS )Nr   z)::dater3   r#   r-   r.   r6   r   r   r   datetime_cast_date_sqls      z)DatabaseOperations.datetime_cast_date_sqlc                 C   r>   )Nr   )::timer3   r?   r   r   r   datetime_cast_time_sqlw   rA   z)DatabaseOperations.datetime_cast_time_sqlc                 C   s@   |  |||\}}|dkrd| ddg|R fS | |||S Nsecondz#EXTRACT(SECOND FROM DATE_TRUNC(%s, z)))r4   r/   r5   r   r   r   datetime_extract_sql{   s   z'DatabaseOperations.datetime_extract_sqlc                 C   r0   r1   r3   r5   r   r   r   datetime_trunc_sql   r8   z%DatabaseOperations.datetime_trunc_sqlc                 C   s.   |dkrd| ddg|R fS |  |||S rD   )r/   r+   r   r   r   time_extract_sql   s   z#DatabaseOperations.time_extract_sqlc                 C   r0   )Nr2   rB   r3   r5   r   r   r   time_trunc_sql   s   z!DatabaseOperations.time_trunc_sqlc                 C      dS )Nz DEFERRABLE INITIALLY DEFERREDr   r#   r   r   r   deferrable_sql      z!DatabaseOperations.deferrable_sqlc                 C   s   |  S )z
        Given a cursor object that has just performed an INSERT...RETURNING
        statement into a table, return the tuple of returned data.
        )Zfetchall)r#   cursorr   r   r   fetch_returned_insert_rows   s   z-DatabaseOperations.fetch_returned_insert_rowsc                 C   s@   d}|dv r|dv rd}n	|dv rd}nd}|dv rd	| }|S )
Nr   )	iexactcontains	icontains
startswithistartswithendswith	iendswithregexZiregex)r   r   zHOST(%s))ZCICharFieldZCIEmailFieldZCITextFieldz
%s::citextz%s::text)rP   rR   rT   rV   z	UPPER(%s)r   )r#   r,   r$   lookupr   r   r   lookup_cast   s   zDatabaseOperations.lookup_castc                 C   s   d S Nr   rK   r   r   r   no_limit_value   rM   z!DatabaseOperations.no_limit_valuec                 C   s   |gS rZ   r   )r#   r-   r   r   r   prepare_sql_script   s   z%DatabaseOperations.prepare_sql_scriptc                 C   s    | dr|dr|S d| S )N"z"%s")rS   rU   )r#   namer   r   r   
quote_name   s   zDatabaseOperations.quote_namec                 C   s   t ||| jS rZ   )r
   r!   )r#   r-   r.   r   r   r   compose_sql   s   zDatabaseOperations.compose_sqlc                 C   rJ   )Nz(SELECT set_config('TimeZone', %s, false)r   rK   r   r   r   set_time_zone_sql   rM   z$DatabaseOperations.set_time_zone_sqlF)reset_sequencesallow_cascadec                   sd   |sg S  dd fdd|D g}|r | d |r*| d dd| gS )	NZTRUNCATE, c                 3   s     | ]}  |V  qd S rZ   )	SQL_FIELDr_   ).0tabler#   styler   r   	<genexpr>   s    z/DatabaseOperations.sql_flush.<locals>.<genexpr>zRESTART IDENTITYZCASCADEz%s; )SQL_KEYWORDjoinappend)r#   ri   Ztablesrb   rc   Z	sql_partsr   rh   r   	sql_flush   s   zDatabaseOperations.sql_flushc              
   C   sR   g }|D ]"}|d }|d pd}| d|d|| |||f  q|S )Nrg   columnidz7%s setval(pg_get_serial_sequence('%s','%s'), 1, false);SELECT)rn   rl   	SQL_TABLEr_   re   )r#   ri   	sequencesr-   Zsequence_infoZ
table_nameZcolumn_namer   r   r   sequence_reset_by_name_sql   s   z-DatabaseOperations.sequence_reset_by_name_sqlc                 C   s    |r	d|  | S d|  | S )NzUSING INDEX TABLESPACE %szTABLESPACE %s)r_   )r#   Z
tablespaceinliner   r   r   tablespace_sql   s   z!DatabaseOperations.tablespace_sqlc                 C   s   ddl m} g }| j}|D ]G}|jjD ]@}t||jrS|d|d|	||jj
||j|||j|||j|d|d|	||jj
f   nqq|S )Nr   )modelszZ%s setval(pg_get_serial_sequence('%s','%s'), coalesce(max(%s), 1), max(%s) %s null) %s %s;rr   zIS NOTZFROM)Z	django.dbrx   r_   _metaZlocal_fields
isinstancer   rn   rl   rs   db_tablere   rp   )r#   ri   Z
model_listrx   outputqnmodelfr   r   r   sequence_reset_sql   s.   
z%DatabaseOperations.sequence_reset_sqlc                 C      |S rZ   r   )r#   xr   r   r   prep_for_iexact_query  rM   z(DatabaseOperations.prep_for_iexact_queryc                 C   rJ   )a  
        Return the maximum length of an identifier.

        The maximum length of an identifier is 63 by default, but can be
        changed by recompiling PostgreSQL after editing the NAMEDATALEN
        macro in src/include/pg_config_manual.h.

        This implementation returns 63, but can be overridden by a custom
        database backend that inherits most of its behavior from this one.
        ?   r   rK   r   r   r   max_name_length  s   z"DatabaseOperations.max_name_lengthc                 C   s0   |rdd |D }dd | g|fS dgg fS )Nc                 S   s   g | ]	}|D ]}|qqS r   r   )rf   Z
param_listparamr   r   r   
<listcomp>%  s    z3DatabaseOperations.distinct_sql.<locals>.<listcomp>zDISTINCT ON (%s)rd   ZDISTINCTrm   )r#   fieldsr.   r   r   r   distinct_sql#  s   
zDatabaseOperations.distinct_sqlc                 C   s&   z|  ||W S  tjy   Y d S w rZ   )r`   r   Z	DataErrorr#   rN   r-   r.   r   r   r   last_executed_query,  s
   z&DatabaseOperations.last_executed_queryc                 C   s   |j d ur
|j  S d S rZ   )querydecoder   r   r   r   r   4  s   

c                    s,   |sdS  fdd|D }dd | dfS )N) r   c                    s,   g | ]}d   |jjj  |jf qS )z%s.%s)r_   r~   ry   r{   rp   rf   fieldrK   r   r   r   >  s    
z<DatabaseOperations.return_insert_columns.<locals>.<listcomp>zRETURNING %srd   r   r   )r#   r   columnsr   rK   r   return_insert_columns;  s   
z(DatabaseOperations.return_insert_columnsc                 C   s*   dd |D }d dd |D }d| S )Nc                 s   s    | ]}d  |V  qdS )rd   Nr   )rf   rowr   r   r   rj   I  s    z5DatabaseOperations.bulk_insert_sql.<locals>.<genexpr>rd   c                 s       | ]}d | V  qdS )z(%s)Nr   )rf   r-   r   r   r   rj   J      zVALUES r   )r#   r   Zplaceholder_rowsZplaceholder_rows_sqlZ
values_sqlr   r   r   bulk_insert_sqlH  s   z"DatabaseOperations.bulk_insert_sqlc                 C   s$   |d u s	t |dr|S | j| |S )NZresolve_expression)hasattrintegerfield_type_map)r#   valuer$   r   r   r   adapt_integerfield_valueO  s   z+DatabaseOperations.adapt_integerfield_valuec                 C   r   rZ   r   r#   r   r   r   r   adapt_datefield_valueT  rM   z(DatabaseOperations.adapt_datefield_valuec                 C   r   rZ   r   r   r   r   r   adapt_datetimefield_valueW  rM   z,DatabaseOperations.adapt_datetimefield_valuec                 C   r   rZ   r   r   r   r   r   adapt_timefield_valueZ  rM   z(DatabaseOperations.adapt_timefield_valuec                 C   r   rZ   r   )r#   r   Z
max_digitsZdecimal_placesr   r   r   adapt_decimalfield_value]  rM   z+DatabaseOperations.adapt_decimalfield_valuec                 C   s   |rt |S d S rZ   )r   r   r   r   r   adapt_ipaddressfield_value`  s   z-DatabaseOperations.adapt_ipaddressfield_valuec                 C   s   t |t|dS )N)r   )r   r   )r#   r   r   r   r   r   adapt_json_valuee  s   z#DatabaseOperations.adapt_json_valuec           	         sF   |dkr|\}}|\}}g ||R }d||f |fS t  |||S )NZ	DateFieldz(interval '1 day' * (%s - %s)))supersubtract_temporals)	r#   r$   lhsrhsZlhs_sqlZ
lhs_paramsZrhs_sqlZ
rhs_paramsr.   	__class__r   r   r   h  s   z%DatabaseOperations.subtract_temporalsc                    s   i }|r!dd |  D }| jD ]}||d }|d ur |||< qt j|fi |}|r1||d< |rC|dddd |  D  7 }|S )Nc                 S   s"   i | ]\}}|  |rd ndqS )truefalse)r'   )rf   r^   r   r   r   r   
<dictcomp>t  s    z;DatabaseOperations.explain_query_prefix.<locals>.<dictcomp>ZFORMATz (%s)rd   c                 s   r   )z%s %sNr   )rf   ir   r   r   rj     r   z:DatabaseOperations.explain_query_prefix.<locals>.<genexpr>)itemsexplain_optionspopr   explain_query_prefixrm   )r#   formatoptionsextraZvalid_optionr   prefixr   r   r   r   p  s    
 z'DatabaseOperations.explain_query_prefixc                    s\   |t jkrdS |t jkr%ddt| j|ddd t| j|D f S t ||||S )NzON CONFLICT DO NOTHINGz ON CONFLICT(%s) DO UPDATE SET %srd   c                 S   s   g | ]	}| d | qS )z = EXCLUDED.r   r   r   r   r   r     s    z=DatabaseOperations.on_conflict_suffix_sql.<locals>.<listcomp>)r   ZIGNOREZUPDATErm   mapr_   r   on_conflict_suffix_sql)r#   r   Zon_conflictZupdate_fieldsZunique_fieldsr   r   r   r     s"   


	z)DatabaseOperations.on_conflict_suffix_sqlc                    s@   t  ||||\}}|| j|| jkrt||}||fS rZ   )r   prepare_join_on_clauser    r!   r   )r#   Z	lhs_tableZ	lhs_fieldZ	rhs_tableZ	rhs_fieldZlhs_exprZrhs_exprr   r   r   r     s   
z)DatabaseOperations.prepare_join_on_clauserZ   )F)NN):__name__
__module____qualname__Z"cast_char_field_without_max_lengthZexplain_prefix	frozensetr   Zcast_data_typesr	   Zpsycopg.typesr   ZInt2ZInt4ZInt8r   r%   r   r(   r/   r7   r=   r4   r@   rC   rF   rG   rH   rI   rL   rO   rY   r[   r\   r_   r`   ra   ro   ru   rw   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   __classcell__r   r   r   r   r      s~    	



"

r   )r   	functoolsr   r   Zdjango.confr   Z"django.db.backends.base.operationsr   Z)django.db.backends.postgresql.psycopg_anyr   r   r   r	   r
   Zdjango.db.backends.utilsr   Zdjango.db.models.constantsr   Zdjango.db.models.functionsr   Zdjango.utils.regex_helperr   r   r   r   r   r   r   <module>   s    
