parking_manage_system/app/Models/AdminUsers.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Notifications\Notifiable;
use Laravel\Sanctum\HasApiTokens;

class AdminUsers extends Model
{
    use HasApiTokens, HasFactory, Notifiable, SoftDeletes;

    /**
     * The attributes that are mass assignable.
     * @var array<int, string>
     */
    protected $fillable
        = [
            'username',
            'name',
            'password',
            'position',
            'status',
            'avatar'
        ];

    /**
     * The attributes that should be hidden for serialization.
     * @var array<int, string>
     */
    protected $hidden
        = [
            'password',
            'remember_token',
            'locale',
            'deleted_at',
            'updated_at'
        ];

    /**
     * The attributes that should be cast.
     * @var array<string, string>
     */
    protected $casts = [];

    /**
     * @return BelongsToMany
     */
    public function roles(): BelongsToMany
    {
        return $this->belongsToMany(AdminRoles::class, AdminRoleUsers::class, 'user_id', 'role_id');
    }

    /**
     * @param $user_id
     * @return mixed
     */
    public static function getUsername($user_id): mixed
    {
        return self::query()->where('id', $user_id)->value('username');
    }
}