$dataProvider, 'columns' => [ ['class' => 'yii\grid\SerialColumn'], [ 'attribute' => 'today', 'format' => 'raw', 'value' => function ($model) { $text = ''; if ($model->task) { $i = 1; foreach ($model->task as $task) { $text .= "

$i. ($task->hours_spent ч., $task->minutes_spent мин.) $task->task

"; $i++; } } return $text; } ], 'difficulties', 'tomorrow', [ 'class' => 'yii\grid\ActionColumn', 'urlCreator' => function ($action, $model, $key, $index) { return \yii\helpers\Url::base(true) . '/reports/reports/' . $action . '?id=' . $model->id; } ], ], ]); die();