backend/views/category/view.php

<?php

use yii\helpers\Html;
use yii\widgets\DetailView;

/* @var $this yii\web\View */
/* @var $model common\modules\product\models\Category */

$this->title = $model->category_id;
$this->params['breadcrumbs'][] = ['label' => Yii::t('product', 'Categories'), 'url' => ['index']];
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="category-view">

    <h1><?= Html::encode($this->title) ?></h1>

    <p>
        <?= Html::a(Yii::t('product', 'Update'), ['update', 'id' => $model->category_id], ['class' => 'btn btn-primary']) ?>
        <?= Html::a(Yii::t('product', 'Delete'), ['delete', 'id' => $model->category_id], [
            'class' => 'btn btn-danger',
            'data' => [
                'confirm' => Yii::t('product', 'Are you sure you want to delete this item?'),
                'method' => 'post',
            ],
        ]) ?>
        <?= Html::a(Yii::t('product', 'Create Category'), ['category/create'], ['class' => 'btn btn-success']) ?>
        <?php if (!empty($model->parent_id)) :?>
            <?= Html::a(Yii::t('product', 'Create category By {name}', ['name' => $model->parent->category_id]), ['category/create?parent='. $model->parent->category_id], ['class' => 'btn btn-success']) ?>
        <?php endif?>
    </p>

    <?= DetailView::widget([
        'model' => $model,
        'attributes' => [
            'category_id',
            'parent_id',
            'path',
            'depth',
            'imageUrl:image',
            'product_unit_id',
        ],
    ]) ?>

</div>