Portlet.php

<?php

namespace padavvan\placer;

use yii\helpers\Html;
use yii\web\MethodNotAllowedHttpException;

class Portlet extends AbstractPlace
{
    /**
     * Контент
     * @var string
     */
    public $content;

    /**
     * @inheritdoc
     */
    public function push(AbstractPlace $place): never
    {
        throw new MethodNotAllowedHttpException('Do not use this method');
    }

    /**
     * @inheritdoc
     */
    public function remove(AbstractPlace $place): never
    {
        throw new MethodNotAllowedHttpException('Do not use this method');
    }

    /**
     * @inheritdoc
     */
    public function render()
    {
        if (!$this->isView()) {
            return;
        }

        if (null === $this->tag) {
            return $this->content;
        } else {
            return Html::tag($this->tag, $this->content, $this->options);
        }
    }
}