video_server/app/Model/TopicCategoryModel.php

<?php
/**
 * 话题分类模型.
 *
 * @author jim <jim458734573@gmail.com>
 * @date   2020-01-29 10:09:06
 */
declare(strict_types=1);


namespace App\Model;

use Hyperf\ModelCache\Cacheable;
use Hyperf\ModelCache\CacheableInterface;

class TopicCategoryModel extends BaseModel implements CacheableInterface
{
    use Cacheable;

    /**
     * 表名.
     *
     * @var string
     */
    protected $table = 'topic_category';

    public function topics()
    {
        return $this->hasMany(TopicModel::class, 'category_id', 'id');
    }
}