kartik gridview page summary


I’m using kartik gridview and i have a problem. I’m counting hours and minutes and in the page summary if i have more than 60 minutes i need to sum values to hours column. Here you have a image:

The last column is the sum of hour * 60 + minutes

From that i can calculate hour and minutes using module function but i dont know how to apply that function to the value i have in the summary. This is the las column formulacolumn value:

‘value’=>function ($model, $key, $index, $widget) {

    $p = compact('model', 'key', 'index');

    return $widget->col(4, $p) * 60 + $widget->col(5, $p);


Can someone help me?

Thank you!