public static function addNameToModel(\Gems_Model_JoinModel $model, $label)
    {
        $nameExpr[]  = "COALESCE(grs_last_name, '-')";
        $fieldList[] = 'grs_last_name';
        if ($model->has('grs_partner_last_name')) {
            if ($model->has('grs_partner_surname_prefix')) {
                $nameExpr[]  = "COALESCE(CONCAT(' ', grs_partner_surname_prefix), '')";
                $fieldList[] = 'grs_partner_surname_prefix';
            }

            $nameExpr[]  = "COALESCE(CONCAT(' ', grs_partner_last_name), '')";
            $fieldList[] = 'grs_partner_last_name';
        }
        $nameExpr[] = "', '";

        if ($model->has('grs_first_name')) {
            if ($model->has('grs_initials_name')) {
                $nameExpr[]  = "COALESCE(grs_first_name, grs_initials_name, '')";
                $fieldList[] = 'grs_first_name';
                $fieldList[] = 'grs_initials_name';
            } else {
                $nameExpr[]  = "COALESCE(grs_first_name, '')";
                $fieldList[] = 'grs_first_name';
            }
        } elseif ($model->has('grs_initials_name')) {
            $nameExpr[]  = "COALESCE(grs_initials_name, '')";
            $fieldList[] = 'grs_initials_name';
        }
        if ($model->has('grs_surname_prefix')) {
            $nameExpr[]  = "COALESCE(CONCAT(' ', grs_surname_prefix), '')";
            $fieldList[] = 'grs_surname_prefix';
        }
        $model->set('name',
                'label', $label,
                'column_expression', new \Zend_Db_Expr("CONCAT(" . implode(', ', $nameExpr) . ")"),
                'fieldlist', $fieldList);
   }