zyedu/application/admin/model/study/PlanSteps.php

<?php
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// | Copyright (c) 2016～2022 https://www.crmeb.com All rights reserved.
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// | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
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// | Author: CRMEB Team <admin@crmeb.com>
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namespace app\admin\model\study;

use traits\ModelTrait;
use basic\ModelBasic;

/**
 * Class planSteps 步骤
 * @package app\admin\model\special
 */
class PlanSteps extends ModelBasic {
    use ModelTrait;
    /**
     * 删除计划
     * @param $id
     * @return bool|int
     * @throws \think\exception\DbException
     */
    public static function delstep($id)
    {
        $plan = self::get($id);
        if (!$plan) return self::setErrorInfo('删除的数据不存在');
        return self::where('id', $id)->update(['is_del' => 1]);
    }
   
}