lgp-admin-plus-api/app/Models/AdminModel.php

<?php

namespace App\Models;

use App\BaseApp\BaseModel;
use App\Models\business\DepartmentModel;
use Illuminate\Database\Eloquent\Relations\HasOne;

class AdminModel extends BaseModel
{

    protected $table = 'admin';
    /**
     * The attributes that are mass assignable.
     *
     * @var list<string>
     */
    protected $guarded = [];

    public function role(): HasOne
    {
        return $this->hasOne(RoleModel::class, 'id', 'role_id');
    }

    /**
     * 所属部门
     *
     * 部门表在 business 连接（cc_ 前缀），Eloquent 关联可以跨连接，
     * 但不能和本表做 SQL join，需要 join 时只能分两次查再在 PHP 里拼。
     */
    public function department(): HasOne
    {
        return $this->hasOne(DepartmentModel::class, 'id', 'department_id');
    }
}