table_name = f'{item}_{attr}'
for _ in db_conn.row_where(table_name, 'condition', self.id_):
raise HandledException('cannot remove Condition in use')
table_name = f'{item}_{attr}'
for _ in db_conn.row_where(table_name, 'condition', self.id_):
raise HandledException('cannot remove Condition in use')