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o �h\ � @ s, d dl mZ d dlmZ G dd� de�ZdS )� )� OGRGeomType)�DatabaseIntrospectionc s6 e Zd Zi Zejg d� Z� fdd�Zdd� Z� ZS )�PostGISIntrospection)�geography_columns�geometry_columns�raster_columns�spatial_ref_sys�raster_overviewsc sn | j s0| j�� �}|�d� t|�� �| _ W d � n1 s w Y | j�dd� | j D �� t� � ||�S )NzKSELECT oid, typname FROM pg_type WHERE typname IN ('geometry', 'geography')c s s � | ]}|d fV qdS )� GeometryFieldN� )�.0�oidr r �g/usr/local/CyberCP/lib/python3.10/site-packages/django/contrib/gis/db/backends/postgis/introspection.py� <genexpr> s � �z6PostGISIntrospection.get_field_type.<locals>.<genexpr>) �postgis_oid_lookup� connection�cursor�execute�dict�fetchall�data_types_reverse�update�super�get_field_type)�self� data_type� descriptionr �� __class__r r r s � � �z#PostGISIntrospection.get_field_typec C s� | j �� �V}|�d||jf� |�� }|s td||jf ��|\}}}t|�j}i }| j� |j �dkr7d|d< |dkr?||d< |dkrQ||d< W d � ||fS W d � ||fS 1 s^w Y ||fS ) a% The geometry type OID used by PostGIS does not indicate the particular type of field that a geometry column is (e.g., whether it's a PointField or a PolygonField). Thus, this routine queries the PostGIS metadata tables to determine the geometry type. a SELECT t.coord_dimension, t.srid, t.type FROM ( SELECT * FROM geometry_columns UNION ALL SELECT * FROM geography_columns ) AS t WHERE t.f_table_name = %s AND t.f_geometry_column = %s z;Could not find a geometry or geography column for "%s"."%s"� geographyTi� �srid� �dimN) r r r �name�fetchone� Exceptionr �djangor �get� type_code) r � table_namer r �rowr" r � field_type� field_paramsr r r �get_geometry_type# s8 � �� � � � � z&PostGISIntrospection.get_geometry_type) �__name__� __module__� __qualname__r r �ignored_tablesr r- � __classcell__r r r r r s r N)�django.contrib.gis.gdalr �+django.db.backends.postgresql.introspectionr r r r r r �<module> s
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