如何按子查询结果过滤 Eloquent 查询？答案

【问题标题】：How to Filter Elequent query By Subquery Result?如何按子查询结果过滤 Eloquent 查询？
【发布时间】：2021-11-24 23:18:23
【问题描述】：

我想在初始查询中按子查询的结果过滤我的查询当我运行上面的代码时，我得到一个错误，说找不到打印的列

            $data = Order::
                  join('clients', 'orders.client_id', '=', 'clients.id')
                ->join('addresses', 'orders.address_id', '=', 'addresses.id')
                ->join('br_codes', 'br_codes.id', '=', 'orders.br_code_id')
                ->join('users', 'orders.user_id', '=', 'users.id')
                ->join('cities', 'addresses.city_id', '=', 'cities.id')
                ->select([
                    'orders.id',
                    'orders.id as OrderID',
                    'clients.name as clientname',
                    'br_codes.br_code',
                    'addresses.address',
                    'cities.name as cityname',
                    'addresses.phone',
                    'addresses.zip_code',
                    'users.name as username',
                    'orders.created_at',
                    'orders.status',
                    'cities.tap',
                    'orders.paid',
                    'orders.recover',
                    'orders.date_postponed as reported',
                    'orders.status_shipper as shipper',
                    DB::raw('(select count(*) from notes where notes.order_id = orders.id) cnotes'),
                    DB::raw('(select count(*) from addresses ad2 JOIN clients cl on cl.id=ad2.client_id where addresses.phone = ad2.phone AND cl.user_id='.Auth::id().') dupuser'),
                    DB::raw('(select sum(items.quantity*items.price) from items where items.order_id = orders.id) price'),
                    DB::raw('(select count(*) from notes where notes.order_id = orders.id and notes.note like "%Invoice printed%" and notes.user_id='.Auth::id().') printed'),
                    'orders.pin',
                    DB::raw('(select users.name from users join affect_orders  on affect_orders.user_id=users.id  where affect_orders.order_id=orders.id  limit 1) as shipper')
                ])->whereIn('orders.status',[1,4]);

   if($request->printed){
      $data->where('printed','>',1);
    }else{
       $data->where('printed',0);
    }

【问题讨论】：

唯一的方法是将整个查询包装在另一个具有该条件的查询中，就像编写普通 SQL 查询时一样。如果您想使用联接而不是关系，那么使用 eloquent 也没有意义。

标签： mysql laravel laravel-query-builder

【解决方案1】：

经过一番深入挖掘，我找到了解决方案：

               if ($request->print_status==1) {
                    $data->having('printed','>',0);
               }//none printed
               elseif ($request->print_status==2) {
                        $data->having('printed',0);
               }

【讨论】：