<?php

namespace app;

use think\Model;

class BaseModel extends Model
{
    public $withJoin = false;

    /**
     * 转换获取with，根据参数with替换为withData中自定义with数据
     * @param array $with
     * @param array $withData
     * @return array|null
     */
    public function buildWith(array $with, array $withData) {
        if ($with['withJoin'] ?? false){
            $this->withJoin = $with['withJoin'];
            unset($with['withJoin']);
        }
        foreach ($withData as $k => $v){
            if (in_array($k, $with)){
                $with_key = array_search($k, $with);
                unset($with[$with_key]);
                $with[$k] = $v;
            }
        }
        return $with; //添加 withDiff 中数据
    }

}