/usr/local/lib/python3.9/site-packages/django/db/backends/postgresql/__pycache__
a Ӱ�hT- � @ sp d dl mZ d dlmZ d dlmZ d dlmZ d dlm Z edej d �Zedej d �ZG d d � d e�Z d S ) � )� namedtuple)�BaseDatabaseIntrospection)� FieldInfo)� TableInfo)�Indexr )� is_autofield�commentr )r c s| e Zd Zdddddddddd d d d d d d d dddd�ZdZg Z� fdd�Zdd� Zdd� Zd dd�Z d d � Z d d � Z � Z S )!�DatabaseIntrospectionZ BooleanFieldZ BinaryField�BigIntegerField�SmallIntegerField� IntegerFieldZ TextFieldZ FloatFieldZGenericIPAddressFieldZ CharFieldZ DateFieldZ TimeFieldZ DateTimeFieldZ DurationFieldZ DecimalFieldZ UUIDFieldZ JSONField)� � � � � � i� i� ie i i i: i; iZ i� i� i� i� i� i� Zbtreec sL t � �||�}|js$|jrHd|jv rH|dkr0dS |dkr<dS |dkrHdS |S )NZnextvalr Z AutoFieldr Z BigAutoFieldr ZSmallAutoField)�super�get_field_typer �default)�selfZ data_type� descriptionZ field_type�� __class__� �U/usr/local/lib/python3.9/site-packages/django/db/backends/postgresql/introspection.pyr ) s ��z$DatabaseIntrospection.get_field_typec s |� d� � fdd�|�� D �S )z>Return a list of table and view names in the current database.aB SELECT c.relname, CASE WHEN c.relispartition THEN 'p' WHEN c.relkind IN ('m', 'v') THEN 'v' ELSE 't' END, obj_description(c.oid, 'pg_class') FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace WHERE c.relkind IN ('f', 'm', 'p', 'r', 'v') AND n.nspname NOT IN ('pg_catalog', 'pg_toast') AND pg_catalog.pg_table_is_visible(c.oid) c s" g | ]}|d � j vrt|� �qS )r )�ignored_tablesr ��.0�row�r r r � <listcomp>K s �z8DatabaseIntrospection.get_table_list.<locals>.<listcomp>��execute�fetchall)r �cursorr r r �get_table_list8 s � �z$DatabaseIntrospection.get_table_listc sL |� d|g� dd� |�� D �� |� d| jj�|� � � fdd�|jD �S )zi Return a description of the table with the DB-API cursor.description interface. a� SELECT a.attname AS column_name, NOT (a.attnotnull OR (t.typtype = 'd' AND t.typnotnull)) AS is_nullable, pg_get_expr(ad.adbin, ad.adrelid) AS column_default, CASE WHEN collname = 'default' THEN NULL ELSE collname END AS collation, a.attidentity != '' AS is_autofield, col_description(a.attrelid, a.attnum) AS column_comment FROM pg_attribute a LEFT JOIN pg_attrdef ad ON a.attrelid = ad.adrelid AND a.attnum = ad.adnum LEFT JOIN pg_collation co ON a.attcollation = co.oid JOIN pg_type t ON a.atttypid = t.oid JOIN pg_class c ON a.attrelid = c.oid JOIN pg_namespace n ON c.relnamespace = n.oid WHERE c.relkind IN ('f', 'm', 'p', 'r', 'v') AND c.relname = %s AND n.nspname NOT IN ('pg_catalog', 'pg_toast') AND pg_catalog.pg_table_is_visible(c.oid) c S s i | ]}|d |dd� �qS )r � Nr �r �liner r r � <dictcomp>o � z?DatabaseIntrospection.get_table_description.<locals>.<dictcomp>zSELECT * FROM %s LIMIT 1c sH g | ]@}t |j|j|jd u r"|jn|j|j|j|jg� |j �R � �qS )N)r �nameZ type_codeZ display_sizeZ internal_size� precision�scaler( �Z field_mapr r r! s s ���z?DatabaseIntrospection.get_table_description.<locals>.<listcomp>)r# r$ � connection�opsZ quote_namer �r r% � table_namer r/ r �get_table_descriptionQ s �� �z+DatabaseIntrospection.get_table_descriptionr c s$ |� d� g� � fdd�|�� D �S )Na� SELECT s.relname AS sequence_name, a.attname AS colname FROM pg_class s JOIN pg_depend d ON d.objid = s.oid AND d.classid = 'pg_class'::regclass AND d.refclassid = 'pg_class'::regclass JOIN pg_attribute a ON d.refobjid = a.attrelid AND d.refobjsubid = a.attnum JOIN pg_class tbl ON tbl.oid = d.refobjid AND tbl.relname = %s AND pg_catalog.pg_table_is_visible(tbl.oid) WHERE s.relkind = 'S'; c s g | ]}|d � |d d��qS )r r' )r, �table�columnr r �r3 r r r! � s �z7DatabaseIntrospection.get_sequences.<locals>.<listcomp>r" )r r% r3 Z table_fieldsr r7 r � get_sequences� s � �z#DatabaseIntrospection.get_sequencesc C s |� d|g� dd� |�� D �S )z� Return a dictionary of {field_name: (field_name_other_table, other_table)} representing all foreign keys in the given table. a{ SELECT a1.attname, c2.relname, a2.attname FROM pg_constraint con LEFT JOIN pg_class c1 ON con.conrelid = c1.oid LEFT JOIN pg_class c2 ON con.confrelid = c2.oid LEFT JOIN pg_attribute a1 ON c1.oid = a1.attrelid AND a1.attnum = con.conkey[1] LEFT JOIN pg_attribute a2 ON c2.oid = a2.attrelid AND a2.attnum = con.confkey[1] WHERE c1.relname = %s AND con.contype = 'f' AND c1.relnamespace = c2.relnamespace AND pg_catalog.pg_table_is_visible(c1.oid) c S s" i | ]}|d |d |d f�qS )r � r' r r r r r r* � r+ z7DatabaseIntrospection.get_relations.<locals>.<dictcomp>r" r2 r r r � get_relations� s �z#DatabaseIntrospection.get_relationsc C s i }|� d|g� |�� D ]L\}}}}}||dk|dv |dkrNt|�dd��nd|dkd d|d �||< q|� d | j|g� |�� D ]~\} }} } } } }}| |vr�| | jko�| �d � o�|du }|dgkr�|ng | dgkr�| ng | | dd d |r�tjn| ||d� || < q�|S )z� Retrieve any constraints or keys (unique, pk, fk, check, index) across one or more columns. Also retrieve the definition of expression-based indexes. aH SELECT c.conname, array( SELECT attname FROM unnest(c.conkey) WITH ORDINALITY cols(colid, arridx) JOIN pg_attribute AS ca ON cols.colid = ca.attnum WHERE ca.attrelid = c.conrelid ORDER BY cols.arridx ), c.contype, (SELECT fkc.relname || '.' || fka.attname FROM pg_attribute AS fka JOIN pg_class AS fkc ON fka.attrelid = fkc.oid WHERE fka.attrelid = c.confrelid AND fka.attnum = c.confkey[1]), cl.reloptions FROM pg_constraint AS c JOIN pg_class AS cl ON c.conrelid = cl.oid WHERE cl.relname = %s AND pg_catalog.pg_table_is_visible(cl.oid) �p)r; �u�f�.r' N�cF)�columns� primary_key�unique� foreign_key�check�index� definition�optionsaa SELECT indexname, array_agg(attname ORDER BY arridx), indisunique, indisprimary, array_agg(ordering ORDER BY arridx), amname, exprdef, s2.attoptions FROM ( SELECT c2.relname as indexname, idx.*, attr.attname, am.amname, CASE WHEN idx.indexprs IS NOT NULL THEN pg_get_indexdef(idx.indexrelid) END AS exprdef, CASE am.amname WHEN %s THEN CASE (option & 1) WHEN 1 THEN 'DESC' ELSE 'ASC' END END as ordering, c2.reloptions as attoptions FROM ( SELECT * FROM pg_index i, unnest(i.indkey, i.indoption) WITH ORDINALITY koi(key, option, arridx) ) idx LEFT JOIN pg_class c ON idx.indrelid = c.oid LEFT JOIN pg_class c2 ON idx.indexrelid = c2.oid LEFT JOIN pg_am am ON c2.relam = am.oid LEFT JOIN pg_attribute attr ON attr.attrelid = c.oid AND attr.attnum = idx.key WHERE c.relname = %s AND pg_catalog.pg_table_is_visible(c.oid) ) s2 GROUP BY indexname, indisunique, indisprimary, amname, exprdef, attoptions; Z_btreeT) r@ �ordersrA rB rC rD rE �typerF rG )r# r$ �tuple�split�index_default_access_method�endswithr �suffix)r r% r3 � constraints� constraintr@ �kindZ used_colsrG rE rB �primaryrH �type_rF Z basic_indexr r r �get_constraints� s^ �� (�4� �� � z%DatabaseIntrospection.get_constraints)r ) �__name__� __module__� __qualname__Zdata_types_reverserL r r r& r4 r8 r: rT � __classcell__r r r r r s: � 0 r N) � collectionsr Z%django.db.backends.base.introspectionr r Z BaseFieldInfor Z BaseTableInfoZdjango.db.modelsr �_fieldsr r r r r �<module> s
.
Edit
..
Edit
__init__.cpython-39.pyc
Edit
base.cpython-39.pyc
Edit
client.cpython-39.pyc
Edit
creation.cpython-39.pyc
Edit
features.cpython-39.pyc
Edit
introspection.cpython-39.pyc
Edit
operations.cpython-39.pyc
Edit
psycopg_any.cpython-39.pyc
Edit
schema.cpython-39.pyc
Edit