creation.py 文件源码

def _maindb_connection(self):
        """
        This is analogous to other backends' `_nodb_connection` property,
        which allows access to an "administrative" connection which can
        be used to manage the test databases.
        For Oracle, the only connection that can be used for that purpose
        is the main (non-test) connection.
        """
        settings_dict = settings.DATABASES[self.connection.alias]
        user = settings_dict.get('SAVED_USER') or settings_dict['USER']
        password = settings_dict.get('SAVED_PASSWORD') or settings_dict['PASSWORD']
        settings_dict = settings_dict.copy()
        settings_dict.update(USER=user, PASSWORD=password)
        DatabaseWrapper = type(self.connection)
        return DatabaseWrapper(settings_dict, alias=self.connection.alias)