Laravel eloquent 字段计算

Question

以下代码输出错误，如 'UNIX_TIMESTAMP(NOW()) > (UNIX_TIMESTAMP(value)+60' 列不存在。

我该如何写出雄辩的风格？

$affected_num = \App\TmpSetting
      ::where('name', 'last_schedule')
      ->where('UNIX_TIMESTAMP(NOW()) > (UNIX_TIMESTAMP(value)+60')
      ->update(['value', 'NOW()']);

此代码有效，但 $affected_num 是一个空数组。

$table = env("DB_PREFIX"). "tmp_setting";
    $affected_num = \DB::select(
      \DB::raw(
        "
          UPDATE 
            $table
          SET 
            value = NOW() 
          WHERE  
            name = :var AND 
            UNIX_TIMESTAMP(NOW()) > (UNIX_TIMESTAMP(value)+60)
        " 
      ), array(
        'var' => 'last_schedule',
      ));

Answer 1

原来我需要使用 whereRaw

whereRaw('UNIX_TIMESTAMP(NOW()) > (UNIX_TIMESTAMP(value)+60')

所以我们有

$affected_num = \App\TmpSetting
      ::where('name', 'last_schedule')
      ->whereRaw('UNIX_TIMESTAMP(NOW()) > (UNIX_TIMESTAMP(value)+60')
      ->update(['value', DB::raw('NOW()')]);