<?php

    namespace common\components\rules;

    use yii\rbac\Rule;

    class CommentOwnRule extends Rule
    {

        public $name = 'canCommentOwn';

        public function execute($user, $item, $params)
        {
            return isset( $params[ 'item' ] ) ? $params[ 'item' ]->user_id == $user : false;
        }

    }