bourse_p2/app/model/VideoOnDemandModel.php

<?php
namespace app\model;
class VideoOnDemandModel extends BaseModel
{
    protected $name = 'video_on_demand';

    // 定义字段类型自动转换
    protected $type = [
        'video_collection' => 'json',    // 存储视频合集，格式 [{"subtitle":"", "video_url":""},{}]
    ];
}