U
    Ha                     @   sF   d Z ddlmZ ddlmZ G dd dejZG dd dejeZdS )	zH
 The GeometryColumns and SpatialRefSys models for the PostGIS backend.
    )SpatialRefSysMixin)modelsc                   @   s   e Zd ZdZejddZejddZejddZejddZ	e
 Zej
ddZejddZG dd dZd	d
 Zedd Zedd ZdS )PostGISGeometryColumnszc
    The 'geometry_columns' view from PostGIS. See the PostGIS
    documentation at Ch. 4.3.2.
       
max_lengthTZprimary_key   c                   @   s   e Zd ZdZdZdZdS )zPostGISGeometryColumns.MetagisZgeometry_columnsFN__name__
__module____qualname__Z	app_labelZdb_tableZmanaged r   r   Q/tmp/pip-unpacked-wheel-3jxiddxt/django/contrib/gis/db/backends/postgis/models.pyMeta   s   r   c                 C   s   d| j | j| j| j| jf S )Nz%s.%s - %dD %s field (SRID: %d))f_table_namef_geometry_columncoord_dimensiontypesridselfr   r   r   __str__   s    zPostGISGeometryColumns.__str__c                 C   s   dS )zf
        Return the name of the metadata column used to store the feature table
        name.
        r   r   clsr   r   r   table_name_col#   s    z%PostGISGeometryColumns.table_name_colc                 C   s   dS )zk
        Return the name of the metadata column used to store the feature
        geometry column.
        r   r   r   r   r   r   geom_col_name+   s    z$PostGISGeometryColumns.geom_col_nameN)r   r   r   __doc__r   	CharFieldZf_table_catalogZf_table_schemar   r   IntegerFieldr   r   r   r   r   classmethodr   r   r   r   r   r   r      s   	
r   c                   @   sb   e Zd ZdZejddZejddZe Z	ejddZ
ejddZG dd dZed	d
 ZdS )PostGISSpatialRefSyszc
    The 'spatial_ref_sys' table from PostGIS. See the PostGIS
    documentation at Ch. 4.2.1.
    Tr   r   r   i   c                   @   s   e Zd ZdZdZdZdS )zPostGISSpatialRefSys.Metar
   Zspatial_ref_sysFNr   r   r   r   r   r   ?   s   r   c                 C   s   | j S )N)srtextr   r   r   r   wktD   s    zPostGISSpatialRefSys.wktN)r   r   r   r   r   r    r   r   Z	auth_nameZ	auth_sridr#   Z	proj4textr   propertyr$   r   r   r   r   r"   4   s   r"   N)r   Z*django.contrib.gis.db.backends.base.modelsr   Z	django.dbr   ZModelr   r"   r   r   r   r   <module>   s   ,