TP5-分页类中的each函数

$list = Db::name('merchant_order_detail')->alias('a')->join('merchant_order b', 'b.id = a.order_id')->where($whereStr)->field($file)->order($order)->paginate(Config::get('list_rows'), false, ['page' => $page,'query'=>$param])->each(function($item, $key){
            $item['loglist'] = Db::name('merchant_order_detail_log')->where("order_detail_id=".$item['id']." and amount>0")->field('order_sn')->select();
            return $item;
        });

$list = Db::name('merchant_order')->alias('a')
                ->join('merchant_member mm', 'mm.id=a.member_id', 'LEFT')
                ->where($whereStr)
                ->field($file)
                ->order(['a.create_time' => 'desc'])
                ->paginate(Config::get('list_rows'), false, ['page' => $page,'query'=>$param])
                ->each(function($item,$key){
                    if($item['pid'] == 0) {
                        $item['company_name'] = Db::name('merchant')->where(['member_id'=>$item['member_id']])->value('company_name');
                        $item['sub_company_name'] = Db::name('merchant')->where(['member_id'=>$item['member_id']])->value('sub_company_name');
                        $item['corporation'] = Db::name('merchant')->where(['member_id'=>$item['member_id']])->value('corporation');
                    } else {
                        $item['company_name'] = Db::name('merchant')->where(['member_id'=>$item['pid']])->value('company_name');
                        $item['sub_company_name'] = Db::name('merchant')->where(['member_id'=>$item['pid']])->value('sub_company_name');
                        $item['corporation'] = Db::name('merchant')->where(['member_id'=>$item['pid']])->value('corporation');
                    }
                    return $item;
                });

$merchant_member_list = Db::name('merchant_member')->alias('mm')
                                ->join('merchant m', 'm.member_id = mm.id', 'LEFT')
                                ->join('merchant_type mt', 'm.merchant_type_id = mt.id', 'LEFT')
                                ->where($where)
                                ->field($field)
                                ->order(['mm.is_lock' => 'asc','mm.create_time' => 'desc'])
                                ->paginate(Config::get('list_rows'), false, ['page' => $page, 'query' => $param])
                                ->each(function($item, $key){
                                    if($item['mt_pid']=='0'){
                                        $item['cate'] = '一级';
                                    } else {
                                        $item['cate'] = Db::name('merchant_type')->where("id=".$item['mt_pid'])->value('name');
                                    }
                                    return $item;
                                });