<?php


namespace app\common\model;


class Banner extends BaseModel
{

    /**
     * @var string
     */
    protected $name = 'banner';
    /**
     * @var array
     */
    protected $auto = [];
    /**
     * @var array
     */
    protected $insert = ['created_at','updated_at'];
    /**
     * @var array
     */
    protected $update = ['updated_at'];
    /**
     * @var array
     */
    protected $hidden = ['deleted_at','updated_at'];

    /**
     * 关联获取Banner Item表
     * @return \think\model\relation\HasMany
     */
    public function items()
    {
        return $this->hasMany('BannerItem', 'banner_id', 'id')->where(['status' => 1]);
    }

    /**
     * 获取Banner 数据
     * @param $id
     *
     * @return array|\PDOStatement|string|\think\Model|null
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public static function getBannerById($id)
    {
        return self::with(['items'])->find($id);
    }

}