o
    lf:                     @   sD   d dl mZ d dlmZ d dlmZ d dlmZ G dd deZdS )    )BaseDatabaseSchemaEditor)IndexColumns)sql)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d4 fdd	ZdZdZdd Z fddZdd Zdd Zdd Zdd Zdd Z fddZd d! Z	"d5 fd#d$	Z fd%d&Zd5d'd(Zd5d)d*Zd6 fd,d-	Zd+d+d.d.d+dd+dd+d"d+d+d/ fd0d1
Zd2d3 Z  Z S )7DatabaseSchemaEditorzeUPDATE %(table)s SET %(column)s = %(default)s WHERE %(column)s IS NULL; SET CONSTRAINTS ALL IMMEDIATEz1ALTER SEQUENCE IF EXISTS %(sequence)s AS %(type)sz,DROP SEQUENCE IF EXISTS %(sequence)s CASCADEzZCREATE 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                    s8   |d u rt  ||S | jjt||}t  |d S N)superexecute
connectionopscompose_sqlstr)selfr   params	__class__r   h/var/www/ticemtrilhas/avaliacao_env/lib/python3.10/site-packages/django/db/backends/postgresql/schema.pyr
   *   s   zDatabaseSchemaEditor.executezRALTER TABLE %(table)s ALTER COLUMN %(column)s ADD GENERATED BY DEFAULT AS IDENTITYzEALTER TABLE %(table)s ALTER COLUMN %(column)s DROP IDENTITY IF EXISTSc                 C   s&   t |tr|dd}t|| jjS )N%z%%)
isinstancer   replacer   quoter   )r   valuer   r   r   quote_value:   s   
z DatabaseSchemaEditor.quote_valuec                    s0   t  ||}| ||}|d ur|| |S r   )r	   _field_indexes_sql_create_like_index_sqlappend)r   modelfieldoutputlike_index_statementr   r   r   r   ?   s
   
z'DatabaseSchemaEditor._field_indexes_sqlc                 C   s.   |j r	|| jS | jj| || jS r   )is_relationrel_db_typer   
data_typesgetget_internal_typedb_typer   r   r   r   r   _field_data_typeF   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+   N   s   z+DatabaseSchemaEditor._field_base_data_typesc                 C   s   |j | jd}|durF|js|jrFd|v rdS t|dd}|r&| |s&dS |dr6| j||gddgdS |d	rF| 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[db_collationvarchar_likevarchar_pattern_ops)fieldssuffix	opclassestexttext_pattern_ops)r&   r   db_indexuniquegetattr_is_collation_deterministic
startswith_create_index_sql)r   r   r   r&   collation_namer   r   r   r   U   s,   

z+DatabaseSchemaEditor._create_like_index_sqlc                 C   sd   d}|  }|  }|dkr$||kr$t| |t| |kr"|S dS | || |kr0|S dS )Nz USING %(column)s::%(type)sr)    )r%   listr+   r(   )r   	new_field	old_field	using_sqlnew_internal_typeold_internal_typer   r   r   
_using_sqlz   s   zDatabaseSchemaEditor._using_sqlc                 C   sl   | j  '}| j j||D ]}|d |kr#|d   W  d    S qW d    d S 1 s/w   Y  d S )Ncolumnname)r   cursorintrospectionget_sequences)r   tablerF   rH   sequencer   r   r   _get_sequence_name   s   

z'DatabaseSchemaEditor._get_sequence_namec                    sT  |j | jd}|d }|js|jrD|dr|dr/|dr%|dr/|drD|dsD| j|jj|jgdd}	| 	| 
||	 d| _| || }
rV|  j|
7  _| }| }t|jj}h d	}||v }||v }|r|st|j}| j| ||d
d g f| j| || |d g fgfS |r|s| 	| j| || t|jd  t|j}t ||||||\}}g }| || }r| jd| |i g fg}||fS |r|r||krt ||||||\}}t|j}dddd}g }| || }r| j| ||| d g fg}||fS t ||||||S )Nr,   typer/   r5   citextr0   r3   z2ALTER COLUMN %(column)s TYPE %(type)s%(collation)s>   	AutoFieldBigAutoFieldSmallAutoFieldr>   rF   rN   	collation)rK   rF   rL   integerbigintsmallint)rQ   rR   rS   )rL   rN   )db_parametersr   r7   r8   r;   _create_index_name_metadb_tablerF   r
   _delete_index_sqlsql_alter_column_typerE   r%   r   
quote_namesql_add_identitysql_drop_indentityr	   _alter_column_type_sqlrM   sql_delete_sequencesql_alter_sequence_type)r   r   rA   r@   new_typeold_collationnew_collationold_db_paramsold_type
index_namerB   rC   rD   rK   auto_field_typesold_is_autonew_is_autorF   fragment_other_actionssequence_namedb_typesr   r   r   rb      s   


	

z+DatabaseSchemaEditor._alter_column_type_sqlc                 C   sL   | j }| || }r||7 }|| |j||rd| | ndd g fS )N r>   rT   )sql_alter_column_collaterE   r_   rF   _collate_sql)r   r   r@   re   rg   rA   r   rB   r   r   r   _alter_column_collation_sql  s   
z0DatabaseSchemaEditor._alter_column_collation_sqlFc	              
      s   t  |||||||| |js|js|js|js+|jr+| ||}	|	d ur+| |	 |jrK|jsM|jsO| j|jj|j	gdd}
| | 
||
 d S d S d S d S )Nr0   rP   )r	   _alter_fieldr7   r8   r   r
   rZ   r[   r\   rF   r]   )r   r   rA   r@   ri   re   rh   new_db_paramsstrictr    index_to_remover   r   r   rw     s0   
z!DatabaseSchemaEditor._alter_fieldc                    s*   |rt ||| j||dS t ||||S )N)col_suffixesr4   )r   r_   r	   _index_columns)r   rK   columnsr{   r4   r   r   r   r|   9  s   z#DatabaseSchemaEditor._index_columnsc                 C   s   | j |j|| |dd d d S )Nconcurrently)r   )r
   
create_sqlr   r   indexr   r   r   r   	add_indexD  s   
zDatabaseSchemaEditor.add_indexc                 C   s   |  |j|| |d d S )Nr~   )r
   
remove_sqlr   r   r   r   remove_indexI  s   z!DatabaseSchemaEditor.remove_indexNc                    s    |r| j n| j}t |||S r   )sql_delete_index_concurrentlysql_delete_indexr	   r]   )r   r   rG   r   r   r   r   r   r]   L  s
   z&DatabaseSchemaEditor._delete_index_sqlr>   )r2   rG   r3   usingdb_tablespacer{   r   r4   	conditionr   includeexpressionsc                   s8   |p	|s| j n| j}t j|||||||||	|
||dS )N)r2   rG   r3   r   r   r{   r   r4   r   r   r   )sql_create_indexsql_create_index_concurrentlyr	   r<   )r   r   r2   rG   r3   r   r   r{   r   r4   r   r   r   r   r   r   r   r<   T  s&   z&DatabaseSchemaEditor._create_index_sqlc                 C   sT   | j  }|d|g | }|r|d nd W  d    S 1 s#w   Y  d S )Nz
                SELECT collisdeterministic
                FROM pg_collation
                WHERE collname = %s
                r   )r   rH   r
   fetchone)r   r=   rH   rowr   r   r   r:   y  s   $z0DatabaseSchemaEditor._is_collation_deterministic)r   )F)NF)!__name__
__module____qualname__sql_update_with_defaultrd   rc   r   r   r   r   sql_create_column_inline_fksql_delete_fksql_delete_procedurer
   r`   ra   r   r   r(   r+   r   rE   rM   rb   rv   rw   r|   r   r   r]   r<   r:   __classcell__r   r   r   r   r      sd    	%s$

%r   N)	django.db.backends.base.schemar   !django.db.backends.ddl_referencesr   )django.db.backends.postgresql.psycopg_anyr   django.db.backends.utilsr   r   r   r   r   r   <module>   s
    