backend/views/menu/index.php

<?php
use yii\helpers\Html;
use yii\grid\GridView;
/* @var $this yii\web\View */
/* @var $searchModel backend\models\MenuSearch */
/* @var $dataProvider yii\data\ActiveDataProvider */
$this->title = Yii::t('app', 'Menus');
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="menu-index">
    <h1><?= Html::encode($this->title) ?></h1>
    <?php // echo $this->render('_search', ['model' => $searchModel]); ?>
    <p>
        <?= Html::a(Yii::t('app', 'Create Menu'), ['create'], ['class' => 'btn btn-success']) ?>
    </p>
    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'filterModel' => $searchModel,
        'columns' => [
            ['class' => 'yii\grid\SerialColumn'],
            'menu_id',
            'menu_pid',
            [
                'attribute' => 'menu_pid',
                'value' => function ($model) {
                    return empty($model->termin_id) ? '-' : $model->termin_lang->termin_title;
                },
            ],
            // 'menu_lft',
            // 'menu_rgt',
            'termin_id',
            // 'show',
            // 'sortorder',
            ['class' => 'yii\grid\ActionColumn'],
        ],
    ]); ?>
</div>