Question

我有以下查询：

App\User::join('gift_sents', function($builder){
      $builder->on('gift_sents.receiver_id', '=', 'users.id');
      })
      ->select('users.*', 'COUNT(gift_sents.receiver_id as total_posts')
      ->groupBy('gift_sents.id')
      ->orderBy('total_posts', 'ASC')
      ->limit(3)->get();

计数不起作用，它应该正常工作！

出现以下错误：

Column not found: 1054 Unknown column 'COUNT(gift_sents.receiver_id' in 'field list' (SQL: select用户.*, COUNT（gift_sents . receiver_id as TOTAL_POSTS from用户inner join gift_sents on gift_sents {{1 }} {receiver_id {1}} {用户{1}} ID为. {gift_sents {1}} ID为= {TOTAL_POSTS {1}}

Answer 1

我认为应该是：

  ->select('users.*', DB::raw('COUNT(gift_sents.receiver_id) as total_posts'))

请参阅文档here - ＆＃39;原始表达式＆＃39;节

Answer 2

而不是：

->select('users.*', 'COUNT(gift_sents.receiver_id as total_posts')

你应该使用：

->selectRaw('users.*, COUNT(gift_sents.receiver_id) as total_posts')

Laravel：如何计算查询

2 个答案: