yupaosite/app/Models/ClassifyRepair.php

<?php

namespace App\Models;

use DateTimeInterface;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class ClassifyRepair extends Model
{
    use HasFactory;
    protected $table='classify_repair';
    protected function serializeDate(DateTimeInterface $date)
    {
        return $date->format('Y-m-d H:i:s');
    }

    /*获取分类**/
    protected function GetClassify(){
        return ClassifyRepair::where('level',1)->where('status',0)->orderBy('rank','asc')->with(['Child'])->get();
    }

    /**子级*/
    public function Child(){
        return $this->hasMany(ClassifyRepair::class,'pid');
    }

    protected function AddClassify($pid,$classify_name,$rank,$imgurl){
        $re=new ClassifyRepair();
        if ($pid==0){
            $re->pid=0;
            $re->level=1;
        }else{
            $re->level=2;
            $re->pid=$pid;
        }
        $re->classify_name=$classify_name;
        $re->status=0;
        $re->imgurl=$imgurl;
        $re->rank=$rank;
        $re->save();
    }

    protected function UpdateClassify($id,$pid,$classify_name,$rank,$imgurl){
        $re=ClassifyRepair::find($id);
        if ($pid==0){
            $re->pid=0;
            $re->level=1;
        }else{
            $re->level=2;
            $re->pid=$pid;
        }
        $re->classify_name=$classify_name;
        $re->status=0;
        $re->imgurl=$imgurl;
        $re->rank=$rank;
        $re->save();
    }
}