cms-manage/app/Models/TopicGroup.php

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019-06-10
 * Time: 16:39
 */

namespace App\Models;


use Illuminate\Database\Eloquent\Model;

class TopicGroup extends Model {
    protected $table = 'topic_group';

    protected $guarded = ['id'];
    protected $hidden = ['deleted_at'];

    public function ct()
    {
        return $this->hasMany('App\Models\TopicGroupInfo','topic_group_id','id');
    }
}