<?php

namespace App\Models\System;

use App\Models\BaseModel;
use App\Models\Schools\School;
use App\Models\Schools\SchoolCampus;
use App\Models\User;

/**
 * 系统用户校区关联模型
 * @package App\Models\System
 * @property int $id 主键ID
 * @property int $userid 用户ID
 * @property int $schoolid 学校ID
 * @property int $campusid 校区ID
 * @property \Carbon\Carbon $created_at 创建时间
 * @property \Carbon\Carbon $updated_at 更新时间
 * @property \Carbon\Carbon|null $deleted_at 删除时间
 * @property int $tenant_id 租户ID
 */
class SystemUserSchoolCampus extends BaseModel
{
    protected $table = 'system_user_school_campus';

    protected $fillable = [
        'userid',
        'schoolid',
        'campusid',
    ];

    protected $casts = [
        'userid' => 'integer',
        'schoolid' => 'integer',
        'campusid' => 'integer',
    ];

    /**
     * 关联用户
     */
    public function user()
    {
        return $this->belongsTo(User::class, 'userid');
    }

    /**
     * 关联学校
     */
    public function school()
    {
        return $this->belongsTo(School::class, 'schoolid');
    }

    /**
     * 关联校区
     */
    public function campus()
    {
        return $this->belongsTo(SchoolCampus::class, 'campusid');
    }

    /**
     * 根据用户ID查询
     */
    public function scopeByUser($query, $userId)
    {
        return $query->where('userid', $userId);
    }

    /**
     * 根据学校ID查询
     */
    public function scopeBySchool($query, $schoolId)
    {
        return $query->where('schoolid', $schoolId);
    }

    /**
     * 根据校区ID查询
     */
    public function scopeByCampus($query, $campusId)
    {
        return $query->where('campusid', $campusId);
    }
}