agent_server/app/Models/Mysql/AppDeductionRuleModel.php

<?php

namespace App\Models\Mysql;

class AppDeductionRuleModel extends BaseMysql
{
    protected $table = 'app_deduction_rule';

    private static $appData = [];

    protected $appends = ['app_name'];

    /**
     * The "booted" method of the model.
     *
     * @return void
     */
    protected static function boot()
    {
        parent::boot();
        self::created(function ($model) {
            $uuid = hashEncodeId($model->id);
            $model->uid = $uuid;
            $model->save();
        });
    }

    /**
     * 获取应用名称
     *
     * directions 使用静态方法，获取app应用名称只会查询一次
     * @return \Illuminate\Database\Eloquent\HigherOrderBuilderProxy|mixed
     */
    public function getAppNameAttribute()
    {
        if (empty(self::$appData)) {
            self::$appData = AppModel::query()->select('uid', 'name')->get()->keyBy('uid');
        }

        return $this->app_name = self::$appData[$this->app_uid]->name ?? '';
    }
}