order_consumption_system_new/app/Models/MjOfflineImp...

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use DB;

class MjOfflineImport extends Model
{
    protected $table = 'mj_offline_import';
    public $timestamps = false;
    protected static $unguarded = true;
    
    public static function delByCostId($id)
    {
    	$info = OrderCost::select('task_id', 'month')
    		->where('id', $id)
    		->first();
    		
    	if(empty($info)){
    		return false;
    	}

    	return self::where('task_id', $info->task_id)->where('month', $info->month)->update(['enable'=>0]);
    }
}