<?php

namespace app\common\model;

use support\Model;

class UsedCarFaq extends Model
{
    /**
     * The connection name for the model.
     *
     * @var string|null
     */
    protected $connection = 'mysql';

    /**
     * The table associated with the model.
     *
     * @var string
     */
    protected $table = 'used_car_faq';

    /**
     * The primary key associated with the table.
     *
     * @var string
     */
    protected $primaryKey = 'id';

    /**
     * Indicates if the model should be timestamped.
     *
     * @var bool
     */
    public $timestamps = true;

    protected $dateFormat = 'U';

    /**
     * 允许自动填充模型字段
     */
    protected $fillable = [
        'id', 'car_id', 'question', 'answer', 'sort', 'status', 'created_at', 'updated_at'
    ];

    /**
     * 不允许自动填充模型字段
     */
    protected $guarded = [];

    /**
     * 关联车辆详情
     */
    public function car()
    {
        return $this->belongsTo(UsedCarDetail::class, 'car_id', 'id');
    }
}