SQLSTATE [42S22]：列未找到：1054未知列（似乎試圖使用ID作爲列名）

Question

所以我一直在Laravel一個範圍最近作戰，我收到以下錯誤：

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'visitors.visitorable_id' in 'on clause' (SQL: select profiles .*, profile_genres . genre_id as pivot_genre_id , profile_genres . profile_id as pivot_profile_id from profiles inner join profile_genres on profiles . id = profile_genres . profile_id left join (SELECT COUNT(id) visits, ip_address, visitorable_id, visitorable_type FROM visitors GROUP BY ip_address) occurences on visitors . visitorable_id = db885a18-f0b7-4f55-9d93-743fbb5d9c94 and visitors . visitorable_type = App\Profile where profile_genres . genre_id = 038ba398-8998-4cd6-950c-60b4a6c401cc and profiles . deleted_at is null)

下面是導致此錯誤的查詢：

public function scopePopular($query, $limit = 10) 
    { 
     $query->leftJoin(DB::raw('(SELECT COUNT(id) visits, ip_address, visitorable_id, visitorable_type FROM `visitors` GROUP BY ip_address) occurences'), function($join) 
     { 
      $join->on('visitors.visitorable_id', '=', 'db885a18-f0b7-4f55-9d93-743fbb5d9c94'); 
      $join->where('visitors.visitorable_type', '=', 'App\Profile'); 
     }); 
     return $query; 
    } 

編輯 按照要求，我的訪客表遷移：

public function up() 
    { 
     Schema::create('visitors', function(Blueprint $table) { 
      $table->increments('id'); 

      $table->uuid('visitorable_id'); 
      $table->string('visitorable_type'); 

      $table->string('isp')->nullable(); 
      $table->string('country_code')->nullable(); 
      $table->string('country')->nullable(); 
      $table->string('city')->nullable(); 
      $table->string('region')->nullable(); 
      $table->string('region_name')->nullable(); 
      $table->string('ip_address')->nullable(); 
      $table->string('timezone')->nullable(); 
      $table->string('zip_code')->nullable(); 
      $table->string('latitude')->nullable(); 
      $table->string('longitude')->nullable(); 

      $table->timestamps(); 
     }); 
    } 

Answer 1

所以事實證明visitors表在子查詢中不可用，將visitors.visitorable_id更改爲occurences.visitorable_id的確有竅門。

$query->leftJoin(DB::raw('(SELECT COUNT(id) visits, ip_address, visitorable_id, visitorable_type FROM `visitors` GROUP BY ip_address) occurences'), function($join) 
{ 
    $join->on('occurences.visitorable_id', '=', 'profiles.id'); 
    $join->where('occurences.visitorable_type', '=', 'App\Profile'); 
}); 

Answer 2

SELECT 
    profiles.*, 
    profile_genres.genre_id as pivot_genre_id, 
    profile_genres.profile_id as pivot_profile_id 
FROM 
    profiles 
    INNER JOIN profile_genres ON profiles.id = profile_genres.profile_id 
    LEFT JOIN (
     SELECT 
      COUNT(id) 
      visits, 
      ip_address, 
      visitorable_id, 
      visitorable_type 
     FROM 
      visitors 
     GROUP BY 
      ip_address 
    ) occurences ON 
     visitors.visitorable_id = XXX AND 
     visitors.visitorable_type = App\Profile) 
WHERE 
    profile_genres.genre_id = YYY AND 
    profiles.deleted_at IS null 

基本上，你做的參觀者select語句，但是從select語句的響應調用occurences。因此visitors.visitorable_id不存在於臨時表中，但occurences.visitorable_id應該存在。