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- from django.db.backends.base.base import NO_DB_ALIAS
- from django.db.backends.postgresql.base import (
- DatabaseWrapper as Psycopg2DatabaseWrapper,
- )
-
- from .features import DatabaseFeatures
- from .introspection import PostGISIntrospection
- from .operations import PostGISOperations
- from .schema import PostGISSchemaEditor
-
-
- class DatabaseWrapper(Psycopg2DatabaseWrapper):
- SchemaEditorClass = PostGISSchemaEditor
-
- def __init__(self, *args, **kwargs):
- super().__init__(*args, **kwargs)
- if kwargs.get('alias', '') != NO_DB_ALIAS:
- self.features = DatabaseFeatures(self)
- self.ops = PostGISOperations(self)
- self.introspection = PostGISIntrospection(self)
-
- def prepare_database(self):
- super().prepare_database()
- # Check that postgis extension is installed.
- with self.cursor() as cursor:
- cursor.execute("CREATE EXTENSION IF NOT EXISTS postgis")
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