<?php

use kartik\grid\GridView;

use kartik\grid\DataColumn;

?>

<?= GridView::widget([

'dataProvider' => $dataProvider,

'filterModel' => $searchModel,

'pjax'=>false,

'showPageSummary' => true,

'export' => [

'fontAwesome' => true

],

'columns' => [

'upc_short'=>[

'class' => DataColumn::className(),

'attribute' => 'UPC Short',

'pageSummary' => true,

'value' => function($dataProvider)

{

return $dataProvider->count_items - $dataProvider->count_items_upc;

}

],

['class' => 'kartik\grid\ActionColumn'],

]

]);

?>