Entities/Administrators/Model/AdministratorsEntityMapper.php
private function doDeleteAdministratorRoles(int $administratorId)
    {
        $q = new QueryBuilder("DELETE FROM ".self::ADM_ROLES_TABLE_NAME." WHERE administrator_id = $1", $administratorId);
        $q->execute();
    }
private function doDeleteAdministratorRoles(int $administratorId)
    {
        $q = new QueryBuilder("DELETE FROM ".self::ADM_ROLES_TABLE_NAME." WHERE administrator_id = $1", $administratorId);
        $q->execute();
    }
deletes the record(s) in the join table