o ó<âgÌã@s0ddlmZddlmZmZGdd„deƒZdS)é)ÚDatabaseSchemaEditor)ÚColÚFunccsVeZdZdZdZdZdZdZdd„Z‡fdd „Z d dœ‡fdd „ Z ‡fdd„Z‡ZS)ÚPostGISSchemaEditorÚGISTÚGIST_GEOMETRY_OPS_NDzST_ConvexHull(%(expressions)s)zLALTER COLUMN %(column)s TYPE %(type)s USING ST_Force3D(%(column)s)::%(type)szLALTER COLUMN %(column)s TYPE %(type)s USING ST_Force2D(%(column)s)::%(type)scCs|jj |¡S)N)Ú connectionÚopsÚgeo_quote_name)ÚselfÚname©r ú`/var/www/html/venv/lib/python3.10/site-packages/django/contrib/gis/db/backends/postgis/schema.pyr sz"PostGISSchemaEditor.geo_quote_namecst|ddƒrdStƒ ||¡S)NÚ spatial_indexFT)ÚgetattrÚsuperÚ_field_should_be_indexed)rÚmodelÚfield©Ú __class__r rrsz,PostGISSchemaEditor._field_should_be_indexedN)ÚfieldscsÈ|dust|ƒdkst|ddƒstƒj|fd|i|¤ŽS|d}d}d}|jdkr7ttd|ƒ|jd}d}n|jdkrC|j sC|j g}| d¡}|sU| |j j|jgd ¡}tƒj|||d |j||dS)NérÚgeodeticrÚRASTER)ÚtemplateérÚ_idz USING %s)rrÚusingÚ opclassesÚexpressions)ÚlenÚhasattrrÚ_create_index_sqlÚ geom_typerrÚrast_index_templateÚdimÚ geographyÚgeom_index_ops_ndÚgetÚ_create_index_nameÚ_metaÚdb_tableÚcolumnÚgeom_index_type)rrrÚkwargsrr rrrr rr#s*" úz%PostGISSchemaEditor._create_index_sqlcsˆt|dƒr t|dƒstƒ ||||||¡S|jdkr#|jdkr#|j}n|jdkr1|jdkr1|j}n|j}|| |j¡|ddœgfgfS)z6 Special case when dimension changed. r&réÚ)r-ÚtypeÚ collation) r"rÚ_alter_column_type_sqlr&Úsql_alter_column_to_3dÚsql_alter_column_to_2dÚsql_alter_column_typeÚ quote_namer-)rÚtableÚ old_fieldÚ new_fieldÚnew_typeÚ old_collationÚ new_collationÚ sql_alterrr rr45s&ÿ ýÿù öz*PostGISSchemaEditor._alter_column_type_sql) Ú__name__Ú __module__Ú__qualname__r.r(r%r5r6r rr#r4Ú __classcell__r r rrrsÿÿrN)Ú$django.db.backends.postgresql.schemarÚdjango.db.models.expressionsrrrr r r rÚs