o
    (S-gðA  ã                   @   sÌ   d dl Z d dlZd dl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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mZmZ d dlmZ ddlmZ G dd„ deƒZdS )é    N)Ú	lru_cache)Úchain)Úsettings)Ú
FieldError)ÚDatabaseErrorÚNotSupportedErrorÚmodels)ÚBaseDatabaseOperations)Ú
OnConflict)ÚCol)Útimezone)Ú
parse_dateÚparse_datetimeÚ
parse_time)Úcached_propertyé   )ÚDatabasec                       sˆ  e Zd ZdZdddœZdZeg d¢ƒZdd„ Zdd	„ Z	d
d„ Z
dd„ Zdd„ ZdWdd„ZdWd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$„ Zd%d&„ Zd'd(„ Zd)d*„ Zd+d,„ Zed-d.„ ƒZd/d/d0œd1d2„Zd3d4„ Zd5d6„ Zd7d8„ Z ‡ fd9d:„Z!d;d<„ Z"d=d>„ Z#d?d@„ Z$dAdB„ Z%dCdD„ Z&dEdF„ Z'‡ fdGdH„Z(dIdJ„ Z)dKdL„ Z*dMdN„ Z+dW‡ fdOdP„	Z,dQdR„ Z-‡ fdSdT„Z.dUdV„ Z/‡  Z0S )XÚDatabaseOperationsÚtextÚTEXT)Ú	DateFieldÚDateTimeFieldzEXPLAIN QUERY PLAN)ÚnullÚfalseÚtruec                 C   s6   t |ƒdkrdS t |ƒdkr| jjjt |ƒ S t |ƒS )zà
        SQLite has a compile-time default (SQLITE_LIMIT_VARIABLE_NUMBER) of
        999 variables per query.

        If there's only a single field to insert, the limit is 500
        (SQLITE_MAX_COMPOUND_SELECT).
        r   iô  )ÚlenÚ
connectionÚfeaturesÚmax_query_params)ÚselfÚfieldsÚobjs© r"   úd/var/www/html/map_library/venv/lib/python3.10/site-packages/django/db/backends/sqlite3/operations.pyÚbulk_batch_size   s
   z"DatabaseOperations.bulk_batch_sizec              
   C   s¤   t jt jt jf}t jt jt jt jf}t||ƒr8| 	¡ D ]}z|j
}W n ttfy-   Y qw t||ƒr7tdƒ‚qt|t jƒrL|jrNt|jƒdkrPtdƒ‚d S d S d S )Nz{You cannot use Sum, Avg, StdDev, and Variance aggregations on date/time fields in sqlite3 since date/time is saved as text.r   zTSQLite doesn't support DISTINCT on aggregate functions accepting multiple arguments.)r   r   r   Ú	TimeFieldÚSumÚAvgÚVarianceÚStdDevÚ
isinstanceÚget_source_expressionsÚoutput_fieldÚAttributeErrorr   r   Ú	AggregateÚdistinctr   Úsource_expressions)r   Ú
expressionÚ
bad_fieldsÚbad_aggregatesÚexprr,   r"   r"   r#   Úcheck_expression_support.   s0   

ý
ÿÿ
ÿþÿûz+DatabaseOperations.check_expression_supportc                 C   ó   d|› d�|  ¡ g|¢R fS )zè
        Support EXTRACT with a user-defined function django_date_extract()
        that's registered in connect(). Use single quotes because this is a
        string and could otherwise cause a collision with a field name.
        zdjango_date_extract(%s, ú)©Úlower©r   Úlookup_typeÚsqlÚparamsr"   r"   r#   Údate_extract_sqlJ   s   z#DatabaseOperations.date_extract_sqlc                 C   s   |  ¡ S )z—
        Given a cursor object that has just performed an INSERT...RETURNING
        statement into a table, return the list of returned data.
        )Úfetchall)r   Úcursorr"   r"   r#   Úfetch_returned_insert_rowsR   s   z-DatabaseOperations.fetch_returned_insert_rowsc                 C   s   |S )z>Do nothing since formatting is handled in the custom function.r"   )r   r<   r"   r"   r#   Úformat_for_duration_arithmeticY   s   z1DatabaseOperations.format_for_duration_arithmeticNc                 C   ó&   d|› d�|  ¡ g|¢|  |¡¢R fS )Nzdjango_date_trunc(%s, ú	, %s, %s)©r9   Ú_convert_tznames_to_sql©r   r;   r<   r=   Útznamer"   r"   r#   Údate_trunc_sql]   ó   
ÿþýz!DatabaseOperations.date_trunc_sqlc                 C   rC   )Nzdjango_time_trunc(%s, rD   rE   rG   r"   r"   r#   Útime_trunc_sqld   rJ   z!DatabaseOperations.time_trunc_sqlc                 C   s   |rt jr|| jjfS dS )N)NN)r   ÚUSE_TZr   Útimezone_name)r   rH   r"   r"   r#   rF   k   s   
z*DatabaseOperations._convert_tznames_to_sqlc                 C   ó    d|› d�g |¢|   |¡¢R fS )Nzdjango_datetime_cast_date(rD   ©rF   ©r   r<   r=   rH   r"   r"   r#   Údatetime_cast_date_sqlp   ó
   ÿþz)DatabaseOperations.datetime_cast_date_sqlc                 C   rN   )Nzdjango_datetime_cast_time(rD   rO   rP   r"   r"   r#   Údatetime_cast_time_sqlv   rR   z)DatabaseOperations.datetime_cast_time_sqlc                 C   rC   )Nzdjango_datetime_extract(%s, rD   rE   rG   r"   r"   r#   Údatetime_extract_sql|   rJ   z'DatabaseOperations.datetime_extract_sqlc                 C   rC   )Nzdjango_datetime_trunc(%s, rD   rE   rG   r"   r"   r#   Údatetime_trunc_sqlƒ   rJ   z%DatabaseOperations.datetime_trunc_sqlc                 C   r6   )Nzdjango_time_extract(%s, r7   r8   r:   r"   r"   r#   Útime_extract_sqlŠ   s   z#DatabaseOperations.time_extract_sqlc                 C   ó   dS )NÚNULLr"   ©r   r"   r"   r#   Úpk_default_value�   ó   z#DatabaseOperations.pk_default_valuec                 C   s–   d}t |ƒ|kr&d}tdt |ƒ|ƒD ]}|||| … }||  |¡7 }q|S dd dgt |ƒ ¡ }| jj ¡ }z| ||¡ ¡ W | ¡  S | ¡  w )zV
        Only for last_executed_query! Don't use this to execute SQL queries!
        iç  r"   r   zSELECT ú, zQUOTE(?))	r   ÚrangeÚ%_quote_params_for_last_executed_queryÚjoinr   r@   ÚexecuteÚfetchoneÚclose)r   r=   Ú
BATCH_SIZEÚresultsÚindexÚchunkr<   r@   r"   r"   r#   r^   �   s   	z8DatabaseOperations._quote_params_for_last_executed_queryc                 C   sT   |r(t |ttfƒr|  |¡}|| S t| ¡ ƒ}|  |¡}tt||ƒƒ}|| S |S ©N)r*   ÚlistÚtupler^   ÚvaluesÚdictÚzip)r   r@   r<   r=   rj   r"   r"   r#   Úlast_executed_query«   s   
ý
z&DatabaseOperations.last_executed_queryc                 C   s    |  d¡r| d¡r|S d| S )Nú"z"%s")Ú
startswithÚendswith)r   Únamer"   r"   r#   Ú
quote_name½   s   zDatabaseOperations.quote_namec                 C   rW   )Néÿÿÿÿr"   rY   r"   r"   r#   Úno_limit_valueÂ   r[   z!DatabaseOperations.no_limit_valuec                 C   sZ   d}|ddf}| j  ¡ �}| ||¡}dd„ | ¡ D ƒW  d   ƒ S 1 s&w   Y  d S )Nz÷
        WITH tables AS (
            SELECT %s name
            UNION
            SELECT sqlite_master.name
            FROM sqlite_master
            JOIN tables ON (sql REGEXP %s || tables.name || %s)
        ) SELECT name FROM tables;
        z(?i)\s+references\s+("|\')?z("|\')?\s*\(c                 S   s   g | ]}|d  ‘qS )r   r"   )Ú.0Úrowr"   r"   r#   Ú
<listcomp>Ö   ó    z9DatabaseOperations.__references_graph.<locals>.<listcomp>)r   r@   r`   r?   )r   Ú
table_nameÚqueryr=   r@   rd   r"   r"   r#   Ú__references_graphÅ   s   
ý$þz%DatabaseOperations.__references_graphc                 C   s   t dd�| jƒS )Ni   )Úmaxsize)r   Ú%_DatabaseOperations__references_graphrY   r"   r"   r#   Ú_references_graphØ   s   z$DatabaseOperations._references_graphF)Úreset_sequencesÚallow_cascadec                   s`   |r|rt t ‡ fdd„|D ƒ¡ƒ}‡ ‡fdd„|D ƒ}|r.dd„ |D ƒ}| ˆ  ˆ|¡¡ |S )Nc                 3   s   � | ]}ˆ   |¡V  qd S rg   )r~   ©ru   ÚtablerY   r"   r#   Ú	<genexpr>ã   s   € z/DatabaseOperations.sql_flush.<locals>.<genexpr>c              
      s2   g | ]}d ˆ  d¡ˆ  d¡ˆ ˆ  |¡¡f ‘qS )z	%s %s %s;ÚDELETEÚFROM)ÚSQL_KEYWORDÚ	SQL_FIELDrr   r�   ©r   Ústyler"   r#   rw   å   s    úýÿÿz0DatabaseOperations.sql_flush.<locals>.<listcomp>c                 S   s   g | ]}d |i‘qS )r‚   r"   r�   r"   r"   r#   rw   ï   rx   )Úsetr   Úfrom_iterableÚextendÚsequence_reset_by_name_sql)r   r‰   Útablesr   r€   r<   Ú	sequencesr"   rˆ   r#   Ú	sql_flushÞ   s   ÿù	zDatabaseOperations.sql_flushc                 C   sn   |sg S d|  d¡| |  d¡¡|  d¡| |  d¡¡|  d¡| |  d¡¡|  d¡d	 d
d„ |D ƒ¡f gS )Nz%s %s %s %s = 0 %s %s %s (%s);ÚUPDATEÚsqlite_sequenceÚSETÚseqÚWHERErq   ÚINr\   c                 S   s   g | ]}d |d  ‘qS )ú'%s'r‚   r"   )ru   Úsequence_infor"   r"   r#   rw     s    zADatabaseOperations.sequence_reset_by_name_sql.<locals>.<listcomp>)r†   Ú	SQL_TABLErr   r‡   r_   )r   r‰   r�   r"   r"   r#   r�   ó   s    ÿøÿÿz-DatabaseOperations.sequence_reset_by_name_sqlc                 C   sD   |d u rd S t  |¡rtjrt  || jj ¡}t|ƒS tdƒ‚t|ƒS )NzNSQLite backend does not support timezone-aware datetimes when USE_TZ is False.)r   Úis_awarer   rL   Ú
make_naiver   Ú
ValueErrorÚstr©r   Úvaluer"   r"   r#   Úadapt_datetimefield_value  s   
ûÿz,DatabaseOperations.adapt_datetimefield_valuec                 C   s&   |d u rd S t  |¡rtdƒ‚t|ƒS )Nz5SQLite backend does not support timezone-aware times.)r   rš   rœ   r�   rž   r"   r"   r#   Úadapt_timefield_value  s
   
z(DatabaseOperations.adapt_timefield_valuec                    sª   t ƒ  |¡}|j ¡ }|dkr| | j¡ |S |dkr#| | j¡ |S |dkr/| | j¡ |S |dkr=| |  |¡¡ |S |dkrI| | j	¡ |S |dkrS| | j
¡ |S )Nr   r   r%   ÚDecimalFieldÚ	UUIDFieldÚBooleanField)ÚsuperÚget_db_convertersr,   Úget_internal_typeÚappendÚconvert_datetimefield_valueÚconvert_datefield_valueÚconvert_timefield_valueÚget_decimalfield_converterÚconvert_uuidfield_valueÚconvert_booleanfield_value)r   r1   Ú
convertersÚinternal_type©Ú	__class__r"   r#   r¦      s(   
ö	øúüþz$DatabaseOperations.get_db_convertersc                 C   s@   |d urt |tjƒst|ƒ}tjrt |¡st || jj¡}|S rg   )	r*   Údatetimer   r   rL   r   rš   Ú
make_awarer   ©r   rŸ   r1   r   r"   r"   r#   r©   1  s   z.DatabaseOperations.convert_datetimefield_valuec                 C   ó    |d urt |tjƒst|ƒ}|S rg   )r*   r³   Údater   rµ   r"   r"   r#   rª   9  ó   z*DatabaseOperations.convert_datefield_valuec                 C   r¶   rg   )r*   r³   Útimer   rµ   r"   r"   r#   r«   ?  r¸   z*DatabaseOperations.convert_timefield_valuec                    sP   t jdd�j‰ t|tƒr t  d¡ |jj ¡‰‡ ‡fdd„}|S ‡ fdd„}|S )Né   )Úprecr   c                    s"   | d urˆ | ƒj ˆ|jjd�S d S )N)Úcontext)Úquantizer,   r¼   ©rŸ   r1   r   ©Úcreate_decimalÚquantize_valuer"   r#   Ú	converterN  s
   ÿÿz@DatabaseOperations.get_decimalfield_converter.<locals>.converterc                    s   | d urˆ | ƒS d S rg   r"   r¾   )rÀ   r"   r#   rÂ   V  s   ÿ)	ÚdecimalÚContextÚcreate_decimal_from_floatr*   r   ÚDecimalÚscalebr,   Údecimal_places)r   r1   rÂ   r"   r¿   r#   r¬   E  s   

ÿüz-DatabaseOperations.get_decimalfield_converterc                 C   s   |d ur	t  |¡}|S rg   )ÚuuidÚUUIDrµ   r"   r"   r#   r­   \  s   
z*DatabaseOperations.convert_uuidfield_valuec                 C   s   |dv rt |ƒS |S )N)r   r   )Úboolrµ   r"   r"   r#   r®   a  ó   z-DatabaseOperations.convert_booleanfield_valuec                    s:   |dkrdd  |¡ S |dkrdd  |¡ S tƒ  ||¡S )Nú^z	POWER(%s)ú,ú#z
BITXOR(%s))r_   r¥   Úcombine_expression)r   Ú	connectorÚsub_expressionsr±   r"   r#   rÐ   d  s
   z%DatabaseOperations.combine_expressionc                 C   sD   |dvr
t d| ƒ‚d| g| }t|ƒdkrtdƒ‚dd |¡ S )N)ú+ú-Ú*ú/z$Invalid connector for timedelta: %s.r—   é   z)Too many params for timedelta operations.zdjango_format_dtdelta(%s)r\   )r   r   rœ   r_   )r   rÑ   rÒ   Ú	fn_paramsr"   r"   r#   Úcombine_duration_expressionm  s   z.DatabaseOperations.combine_duration_expressionc                 C   s   |dv rdS dS )N)ÚPositiveBigIntegerFieldÚPositiveIntegerFieldÚPositiveSmallIntegerField)r   ì   ÿÿÿÿ )lûÿÿÿ         rÝ   r"   )r   r°   r"   r"   r#   Úinteger_field_rangeu  s   z&DatabaseOperations.integer_field_rangec           	      C   sF   |\}}|\}}g |¢|¢R }|dkrd||f |fS d||f |fS )Nr%   zdjango_time_diff(%s, %s)zdjango_timestamp_diff(%s, %s)r"   )	r   r°   ÚlhsÚrhsÚlhs_sqlÚ
lhs_paramsÚrhs_sqlÚ
rhs_paramsr=   r"   r"   r#   Úsubtract_temporals€  s   z%DatabaseOperations.subtract_temporalsc                    s   |t jkrdS tƒ j|d�S )NzINSERT OR IGNORE INTO)Úon_conflict)r
   ÚIGNOREr¥   Úinsert_statement)r   ræ   r±   r"   r#   rè   ˆ  s   
z#DatabaseOperations.insert_statementc                    s,   |sdS ‡ fdd„|D ƒ}dd  |¡ dfS )N)Ú r"   c                    s,   g | ]}d ˆ   |jjj¡ˆ   |j¡f ‘qS )z%s.%s)rr   ÚmodelÚ_metaÚdb_tableÚcolumn©ru   ÚfieldrY   r"   r#   rw   ‘  s    û
þÿÿz<DatabaseOperations.return_insert_columns.<locals>.<listcomp>zRETURNING %sr\   r"   )r_   )r   r    Úcolumnsr"   rY   r#   Úreturn_insert_columns�  s   
úz(DatabaseOperations.return_insert_columnsc                    sX   |t jkr#| jjjr#dd t| j|ƒ¡d dd„ t| j|ƒD ƒ¡f S tƒ  	||||¡S )Nz ON CONFLICT(%s) DO UPDATE SET %sr\   c                 S   s   g | ]	}|› d |› �‘qS )z = EXCLUDED.r"   rî   r"   r"   r#   rw   £  s    ÿÿz=DatabaseOperations.on_conflict_suffix_sql.<locals>.<listcomp>)
r
   r‘   r   r   Ú%supports_update_conflicts_with_targetr_   Úmaprr   r¥   Úon_conflict_suffix_sql)r   r    ræ   Úupdate_fieldsÚunique_fieldsr±   r"   r#   rô   ›  s"   
ÿ
þÿþ	üz)DatabaseOperations.on_conflict_suffix_sqlc                 C   s   t jdk rdgS g S )N)r×   é'   zGROUP BY TRUE)r   Úsqlite_version_inforY   r"   r"   r#   Úforce_group_by°  rÌ   z!DatabaseOperations.force_group_byrg   )1Ú__name__Ú
__module__Ú__qualname__Ú"cast_char_field_without_max_lengthÚcast_data_typesÚexplain_prefixÚ	frozensetÚjsonfield_datatype_valuesr$   r5   r>   rA   rB   rI   rK   rF   rQ   rS   rT   rU   rV   rZ   r^   rm   rr   rt   r}   r   r~   r�   r�   r    r¡   r¦   r©   rª   r«   r¬   r­   r®   rÐ   rÙ   rÞ   rå   rè   rñ   rô   rù   Ú__classcell__r"   r"   r±   r#   r      s^    þ



	r   ) r³   rÃ   rÉ   Ú	functoolsr   Ú	itertoolsr   Údjango.confr   Údjango.core.exceptionsr   Ú	django.dbr   r   r   Ú"django.db.backends.base.operationsr	   Údjango.db.models.constantsr
   Údjango.db.models.expressionsr   Údjango.utilsr   Údjango.utils.dateparser   r   r   Údjango.utils.functionalr   Úbaser   r   r"   r"   r"   r#   Ú<module>   s     