add new column in APYDataGridBundle nor work

I try add new column to APYDataGridBundle

here is code :

$source->manipulateRow(
            function ($row)
                {
                    /**
                     * @var $row Row
                     */
                    $row->setField('newColumn', $row->getEntity()->getMorbidity());

                    return $row;
                }
            );

but it dont show on rendered table, how to show it ?

rest of code :

 /**
         * @var Grid $grid
         */
        $grid = $this->get('grid');


        $grid->setSource($source);


        $grid->hideColumns(array('id','date_create','hidden''number'));

        $grid->hideFilters();

        $grid->setActionsColumnTitle(null);

        $grid->getColumn('value')->setTitle('price');




        $userColumns = array('debtor_name','debtor_type','value', 'sell_price', 'date_sell','date_sell2');
        $grid->setColumnsOrder($userColumns);


        $myRowAction = new RowAction('see', 'CompanyController_editCompanyPartner', false, '_self');
        $grid->addRowAction($myRowAction);



        return $grid->getGridRes

ponse('meaCoreBundle:Base:grid.html.twig');

Copyright Notice：Content Author:「Developer」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/24466727/add-new-column-in-apydatagridbundle-nor-work