o
    ^"<fS+                     @   s@   d dl Z d dlmZ d dlmZ d dlmZ G dd deZdS )    N)BaseDatabaseSchemaEditor)IndexColumns)strip_quotesc                       s   e Zd ZdZdZdZdZdZdZdZ	dZ
d	Zd
ZdZdd Z fddZdd Zdd Zdd Z fddZ	d) fdd	Z fddZd)ddZd)dd Zd* fd"d#	Zd!d!d$d$d!d%d!d%d!dd!d!d& fd'd(
Z  ZS )+DatabaseSchemaEditorzCREATE SEQUENCE %(sequence)sz,DROP SEQUENCE IF EXISTS %(sequence)s CASCADEz=SELECT setval('%(sequence)s', MAX(%(column)s)) FROM %(table)sz9ALTER SEQUENCE %(sequence)s OWNED BY %(table)s.%(column)szZCREATE INDEX %(name)s ON %(table)s%(using)s (%(columns)s)%(include)s%(extra)s%(condition)szgCREATE INDEX CONCURRENTLY %(name)s ON %(table)s%(using)s (%(columns)s)%(include)s%(extra)s%(condition)szDROP INDEX IF EXISTS %(name)sz*DROP INDEX CONCURRENTLY IF EXISTS %(name)szyCONSTRAINT %(name)s REFERENCES %(to_table)s(%(to_column)s)%(deferrable)s; SET CONSTRAINTS %(namespace)s%(name)s IMMEDIATEzRSET CONSTRAINTS %(name)s IMMEDIATE; ALTER TABLE %(table)s DROP CONSTRAINT %(name)sz,DROP FUNCTION %(procedure)s(%(param_types)s)c                 C   s>   t |tr|dd}tj|}t|drd|_| 	 S )N%z%%encodingutf8)

isinstancestrreplacepsycopg2
extensionsadapthasattrr   	getquoteddecode)selfvalueadapted r   [/var/www/html/kck/venv/lib/python3.10/site-packages/django/db/backends/postgresql/schema.pyquote_value&   s   

z DatabaseSchemaEditor.quote_valuec                    s0   t  ||}| ||}|d ur|| |S N)super_field_indexes_sql_create_like_index_sqlappend)r   modelfieldoutputlike_index_statement	__class__r   r   r   /   s
   
z'DatabaseSchemaEditor._field_indexes_sqlc                 C   s.   |j r	|| jS | jj| || jS r   )is_relationrel_db_type
connection
data_typesgetget_internal_typedb_typer   r   r   r   r   _field_data_type6   s   
z%DatabaseSchemaEditor._field_data_typec                 c   s8    |j  dkr| |j E d H  d S | |j V  d S )N
ArrayField)
base_fieldr(   _field_base_data_typesr+   r*   r   r   r   r.   >   s   z+DatabaseSchemaEditor._field_base_data_typesc                 C   sr   |j | jd}|dur7|js|jr7d|v rdS |dr'| j||gddgdS |dr7| j||gdd	gdS dS )
z
        Return the statement to create an index with varchar operator pattern
        when the column type is 'varchar' or 'text', otherwise return None.
        r%   N[varchar_likevarchar_pattern_ops)fieldssuffix	opclassestexttext_pattern_ops)r)   r%   db_indexunique
startswith_create_index_sql)r   r   r   r)   r   r   r   r   E   s&   

z+DatabaseSchemaEditor._create_like_index_sqlc                    s  d| _ d}| }| }|dkr+||kr+t| |t| |kr*|  j |7  _ n| || |kr<|  j |7  _ t|jj}dddd}	| |	v rt|j	}
d||
f }| j | 
|
|	|  d	 g f| jd
| 
|i g f| jd
| 
|i g f| j| 
|| j| 
|
d| 
| d d g f| j| 
|| 
|
| 
|d g f| j| 
|| 
|
| 
|d g fgfS |j| jdd |	v rt|j	}
d||
f }t ||||\}}|| jd
| 
|i g fgfS t ||||S )Nz%ALTER COLUMN %(column)s TYPE %(type)sz USING %(column)s::%(type)sr,   bigintintegersmallint)	bigserialserialsmallserialz	%s_%s_seq)columntypesequenceznextval('%s'))rC   default)tablechanges)rG   rC   rE   r/   rD   )sql_alter_column_typer(   listr.   r+   r   _metadb_tablelowerrC   
quote_namesql_delete_sequencesql_create_sequencesql_alter_columnsql_alter_column_defaultsql_set_sequence_maxsql_set_sequence_ownerdb_parametersr%   r   _alter_column_type_sql)r   r   	old_field	new_fieldnew_type	using_sqlnew_internal_typeold_internal_typerG   serial_fields_maprC   sequence_namefragment_r!   r   r   rV   e   s   

	

	1

	z+DatabaseSchemaEditor._alter_column_type_sqlFc	              
      s  |j s|jr9|dr|dr$|dr|dr$|dr9|ds9| j|jj|jgdd}	| | ||	 t	 
|||||||| |j sO|jsO|j sU|jsd|jrd| ||}
|
d urd| |
 |jr|j s|js| j|jj|jgdd}| | || d S d S d S d S )Nr1   r7   citextr2   )r5   )r9   r:   r;   _create_index_namerK   rL   rC   execute_delete_index_sqlr   _alter_fieldr   )r   r   rW   rX   old_typerY   old_db_paramsnew_db_paramsstrict
index_namer    index_to_remover!   r   r   re      s>   
z!DatabaseSchemaEditor._alter_fieldc                    s*   |rt ||| j||dS t ||||S )N)col_suffixesr6   )r   rN   r   _index_columns)r   rG   columnsrl   r6   r!   r   r   rm      s   z#DatabaseSchemaEditor._index_columnsc                 C   s   | j |j|| |dd d d S )Nconcurrently)params)rc   
create_sqlr   r   indexrp   r   r   r   	add_index   s   zDatabaseSchemaEditor.add_indexc                 C   s   |  |j|| |d d S )Nro   )rc   
remove_sqlrs   r   r   r   remove_index   s   z!DatabaseSchemaEditor.remove_indexNc                    s    |r| j n| j}t |||S r   )sql_delete_index_concurrentlysql_delete_indexr   rd   )r   r   namesqlrp   r!   r   r   rd      s   z&DatabaseSchemaEditor._delete_index_sql r   )r4   rz   r5   usingdb_tablespacerl   r{   r6   	conditionrp   includeexpressionsc                   s4   |s| j n| j}t j|||||||||	|
||dS )N)r4   rz   r5   r}   r~   rl   r{   r6   r   r   r   )sql_create_indexsql_create_index_concurrentlyr   r<   )r   r   r4   rz   r5   r}   r~   rl   r{   r6   r   rp   r   r   r!   r   r   r<      s   
z&DatabaseSchemaEditor._create_index_sql)F)NF)__name__
__module____qualname__rP   rO   rS   rT   r   r   ry   rx   sql_create_column_inline_fksql_delete_fksql_delete_procedurer   r   r+   r.   r   rV   re   rm   ru   rw   rd   r<   __classcell__r   r   r!   r   r      s>    	 T

r   )r   django.db.backends.base.schemar   !django.db.backends.ddl_referencesr   django.db.backends.utilsr   r   r   r   r   r   <module>   s
    