lachang/database/seeds/UpdateSellerGradeSeeder.php

<?php

use app\common\model\User;
use think\migration\Seeder;

class UpdateSellerGradeSeeder extends Seeder
{
    /**
     * Run Method.
     *
     * Write your database seeder using this method.
     *
     * More information on writing seeders is available here:
     * http://docs.phinx.org/en/latest/seeding.html
     */
    public function run()
    {
        $users = User::where('role',99)->select();
        if (count($users)){
            foreach ($users as $user){
                $applyRec = \app\common\model\ApplySeller::where('user_id',$user->user_id)
                    ->where('state',1)->find();
                if ($applyRec){
                    $expire = intval(strtotime('+1 year',strtotime($applyRec->update_time)));
                }else{
                    $expire = intval(strtotime('+1 year',strtotime($user->create_time)));
                }
                User::where('user_id',$user->user_id)->update(['seller_grade'=>1,'seller_expire'=>$expire]);
            }
        }
    }
}